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Source file src/cmd/compile/internal/ssa/rewriteMIPS.go

Documentation: cmd/compile/internal/ssa

     1  // Code generated from _gen/MIPS.rules using 'go generate'; DO NOT EDIT.
     2  
     3  package ssa
     4  
     5  import "cmd/compile/internal/types"
     6  
     7  func rewriteValueMIPS(v *Value) bool {
     8  	switch v.Op {
     9  	case OpAbs:
    10  		v.Op = OpMIPSABSD
    11  		return true
    12  	case OpAdd16:
    13  		v.Op = OpMIPSADD
    14  		return true
    15  	case OpAdd32:
    16  		v.Op = OpMIPSADD
    17  		return true
    18  	case OpAdd32F:
    19  		v.Op = OpMIPSADDF
    20  		return true
    21  	case OpAdd32withcarry:
    22  		return rewriteValueMIPS_OpAdd32withcarry(v)
    23  	case OpAdd64F:
    24  		v.Op = OpMIPSADDD
    25  		return true
    26  	case OpAdd8:
    27  		v.Op = OpMIPSADD
    28  		return true
    29  	case OpAddPtr:
    30  		v.Op = OpMIPSADD
    31  		return true
    32  	case OpAddr:
    33  		return rewriteValueMIPS_OpAddr(v)
    34  	case OpAnd16:
    35  		v.Op = OpMIPSAND
    36  		return true
    37  	case OpAnd32:
    38  		v.Op = OpMIPSAND
    39  		return true
    40  	case OpAnd8:
    41  		v.Op = OpMIPSAND
    42  		return true
    43  	case OpAndB:
    44  		v.Op = OpMIPSAND
    45  		return true
    46  	case OpAtomicAdd32:
    47  		v.Op = OpMIPSLoweredAtomicAdd
    48  		return true
    49  	case OpAtomicAnd32:
    50  		v.Op = OpMIPSLoweredAtomicAnd
    51  		return true
    52  	case OpAtomicAnd8:
    53  		return rewriteValueMIPS_OpAtomicAnd8(v)
    54  	case OpAtomicCompareAndSwap32:
    55  		v.Op = OpMIPSLoweredAtomicCas
    56  		return true
    57  	case OpAtomicExchange32:
    58  		v.Op = OpMIPSLoweredAtomicExchange
    59  		return true
    60  	case OpAtomicLoad32:
    61  		v.Op = OpMIPSLoweredAtomicLoad32
    62  		return true
    63  	case OpAtomicLoad8:
    64  		v.Op = OpMIPSLoweredAtomicLoad8
    65  		return true
    66  	case OpAtomicLoadPtr:
    67  		v.Op = OpMIPSLoweredAtomicLoad32
    68  		return true
    69  	case OpAtomicOr32:
    70  		v.Op = OpMIPSLoweredAtomicOr
    71  		return true
    72  	case OpAtomicOr8:
    73  		return rewriteValueMIPS_OpAtomicOr8(v)
    74  	case OpAtomicStore32:
    75  		v.Op = OpMIPSLoweredAtomicStore32
    76  		return true
    77  	case OpAtomicStore8:
    78  		v.Op = OpMIPSLoweredAtomicStore8
    79  		return true
    80  	case OpAtomicStorePtrNoWB:
    81  		v.Op = OpMIPSLoweredAtomicStore32
    82  		return true
    83  	case OpAvg32u:
    84  		return rewriteValueMIPS_OpAvg32u(v)
    85  	case OpBitLen32:
    86  		return rewriteValueMIPS_OpBitLen32(v)
    87  	case OpClosureCall:
    88  		v.Op = OpMIPSCALLclosure
    89  		return true
    90  	case OpCom16:
    91  		return rewriteValueMIPS_OpCom16(v)
    92  	case OpCom32:
    93  		return rewriteValueMIPS_OpCom32(v)
    94  	case OpCom8:
    95  		return rewriteValueMIPS_OpCom8(v)
    96  	case OpConst16:
    97  		return rewriteValueMIPS_OpConst16(v)
    98  	case OpConst32:
    99  		return rewriteValueMIPS_OpConst32(v)
   100  	case OpConst32F:
   101  		v.Op = OpMIPSMOVFconst
   102  		return true
   103  	case OpConst64F:
   104  		v.Op = OpMIPSMOVDconst
   105  		return true
   106  	case OpConst8:
   107  		return rewriteValueMIPS_OpConst8(v)
   108  	case OpConstBool:
   109  		return rewriteValueMIPS_OpConstBool(v)
   110  	case OpConstNil:
   111  		return rewriteValueMIPS_OpConstNil(v)
   112  	case OpCtz32:
   113  		return rewriteValueMIPS_OpCtz32(v)
   114  	case OpCtz32NonZero:
   115  		v.Op = OpCtz32
   116  		return true
   117  	case OpCvt32Fto32:
   118  		v.Op = OpMIPSTRUNCFW
   119  		return true
   120  	case OpCvt32Fto64F:
   121  		v.Op = OpMIPSMOVFD
   122  		return true
   123  	case OpCvt32to32F:
   124  		v.Op = OpMIPSMOVWF
   125  		return true
   126  	case OpCvt32to64F:
   127  		v.Op = OpMIPSMOVWD
   128  		return true
   129  	case OpCvt64Fto32:
   130  		v.Op = OpMIPSTRUNCDW
   131  		return true
   132  	case OpCvt64Fto32F:
   133  		v.Op = OpMIPSMOVDF
   134  		return true
   135  	case OpCvtBoolToUint8:
   136  		v.Op = OpCopy
   137  		return true
   138  	case OpDiv16:
   139  		return rewriteValueMIPS_OpDiv16(v)
   140  	case OpDiv16u:
   141  		return rewriteValueMIPS_OpDiv16u(v)
   142  	case OpDiv32:
   143  		return rewriteValueMIPS_OpDiv32(v)
   144  	case OpDiv32F:
   145  		v.Op = OpMIPSDIVF
   146  		return true
   147  	case OpDiv32u:
   148  		return rewriteValueMIPS_OpDiv32u(v)
   149  	case OpDiv64F:
   150  		v.Op = OpMIPSDIVD
   151  		return true
   152  	case OpDiv8:
   153  		return rewriteValueMIPS_OpDiv8(v)
   154  	case OpDiv8u:
   155  		return rewriteValueMIPS_OpDiv8u(v)
   156  	case OpEq16:
   157  		return rewriteValueMIPS_OpEq16(v)
   158  	case OpEq32:
   159  		return rewriteValueMIPS_OpEq32(v)
   160  	case OpEq32F:
   161  		return rewriteValueMIPS_OpEq32F(v)
   162  	case OpEq64F:
   163  		return rewriteValueMIPS_OpEq64F(v)
   164  	case OpEq8:
   165  		return rewriteValueMIPS_OpEq8(v)
   166  	case OpEqB:
   167  		return rewriteValueMIPS_OpEqB(v)
   168  	case OpEqPtr:
   169  		return rewriteValueMIPS_OpEqPtr(v)
   170  	case OpGetCallerPC:
   171  		v.Op = OpMIPSLoweredGetCallerPC
   172  		return true
   173  	case OpGetCallerSP:
   174  		v.Op = OpMIPSLoweredGetCallerSP
   175  		return true
   176  	case OpGetClosurePtr:
   177  		v.Op = OpMIPSLoweredGetClosurePtr
   178  		return true
   179  	case OpHmul32:
   180  		return rewriteValueMIPS_OpHmul32(v)
   181  	case OpHmul32u:
   182  		return rewriteValueMIPS_OpHmul32u(v)
   183  	case OpInterCall:
   184  		v.Op = OpMIPSCALLinter
   185  		return true
   186  	case OpIsInBounds:
   187  		return rewriteValueMIPS_OpIsInBounds(v)
   188  	case OpIsNonNil:
   189  		return rewriteValueMIPS_OpIsNonNil(v)
   190  	case OpIsSliceInBounds:
   191  		return rewriteValueMIPS_OpIsSliceInBounds(v)
   192  	case OpLeq16:
   193  		return rewriteValueMIPS_OpLeq16(v)
   194  	case OpLeq16U:
   195  		return rewriteValueMIPS_OpLeq16U(v)
   196  	case OpLeq32:
   197  		return rewriteValueMIPS_OpLeq32(v)
   198  	case OpLeq32F:
   199  		return rewriteValueMIPS_OpLeq32F(v)
   200  	case OpLeq32U:
   201  		return rewriteValueMIPS_OpLeq32U(v)
   202  	case OpLeq64F:
   203  		return rewriteValueMIPS_OpLeq64F(v)
   204  	case OpLeq8:
   205  		return rewriteValueMIPS_OpLeq8(v)
   206  	case OpLeq8U:
   207  		return rewriteValueMIPS_OpLeq8U(v)
   208  	case OpLess16:
   209  		return rewriteValueMIPS_OpLess16(v)
   210  	case OpLess16U:
   211  		return rewriteValueMIPS_OpLess16U(v)
   212  	case OpLess32:
   213  		return rewriteValueMIPS_OpLess32(v)
   214  	case OpLess32F:
   215  		return rewriteValueMIPS_OpLess32F(v)
   216  	case OpLess32U:
   217  		return rewriteValueMIPS_OpLess32U(v)
   218  	case OpLess64F:
   219  		return rewriteValueMIPS_OpLess64F(v)
   220  	case OpLess8:
   221  		return rewriteValueMIPS_OpLess8(v)
   222  	case OpLess8U:
   223  		return rewriteValueMIPS_OpLess8U(v)
   224  	case OpLoad:
   225  		return rewriteValueMIPS_OpLoad(v)
   226  	case OpLocalAddr:
   227  		return rewriteValueMIPS_OpLocalAddr(v)
   228  	case OpLsh16x16:
   229  		return rewriteValueMIPS_OpLsh16x16(v)
   230  	case OpLsh16x32:
   231  		return rewriteValueMIPS_OpLsh16x32(v)
   232  	case OpLsh16x64:
   233  		return rewriteValueMIPS_OpLsh16x64(v)
   234  	case OpLsh16x8:
   235  		return rewriteValueMIPS_OpLsh16x8(v)
   236  	case OpLsh32x16:
   237  		return rewriteValueMIPS_OpLsh32x16(v)
   238  	case OpLsh32x32:
   239  		return rewriteValueMIPS_OpLsh32x32(v)
   240  	case OpLsh32x64:
   241  		return rewriteValueMIPS_OpLsh32x64(v)
   242  	case OpLsh32x8:
   243  		return rewriteValueMIPS_OpLsh32x8(v)
   244  	case OpLsh8x16:
   245  		return rewriteValueMIPS_OpLsh8x16(v)
   246  	case OpLsh8x32:
   247  		return rewriteValueMIPS_OpLsh8x32(v)
   248  	case OpLsh8x64:
   249  		return rewriteValueMIPS_OpLsh8x64(v)
   250  	case OpLsh8x8:
   251  		return rewriteValueMIPS_OpLsh8x8(v)
   252  	case OpMIPSADD:
   253  		return rewriteValueMIPS_OpMIPSADD(v)
   254  	case OpMIPSADDconst:
   255  		return rewriteValueMIPS_OpMIPSADDconst(v)
   256  	case OpMIPSAND:
   257  		return rewriteValueMIPS_OpMIPSAND(v)
   258  	case OpMIPSANDconst:
   259  		return rewriteValueMIPS_OpMIPSANDconst(v)
   260  	case OpMIPSCMOVZ:
   261  		return rewriteValueMIPS_OpMIPSCMOVZ(v)
   262  	case OpMIPSCMOVZzero:
   263  		return rewriteValueMIPS_OpMIPSCMOVZzero(v)
   264  	case OpMIPSLoweredAtomicAdd:
   265  		return rewriteValueMIPS_OpMIPSLoweredAtomicAdd(v)
   266  	case OpMIPSLoweredAtomicStore32:
   267  		return rewriteValueMIPS_OpMIPSLoweredAtomicStore32(v)
   268  	case OpMIPSMOVBUload:
   269  		return rewriteValueMIPS_OpMIPSMOVBUload(v)
   270  	case OpMIPSMOVBUreg:
   271  		return rewriteValueMIPS_OpMIPSMOVBUreg(v)
   272  	case OpMIPSMOVBload:
   273  		return rewriteValueMIPS_OpMIPSMOVBload(v)
   274  	case OpMIPSMOVBreg:
   275  		return rewriteValueMIPS_OpMIPSMOVBreg(v)
   276  	case OpMIPSMOVBstore:
   277  		return rewriteValueMIPS_OpMIPSMOVBstore(v)
   278  	case OpMIPSMOVBstorezero:
   279  		return rewriteValueMIPS_OpMIPSMOVBstorezero(v)
   280  	case OpMIPSMOVDload:
   281  		return rewriteValueMIPS_OpMIPSMOVDload(v)
   282  	case OpMIPSMOVDstore:
   283  		return rewriteValueMIPS_OpMIPSMOVDstore(v)
   284  	case OpMIPSMOVFload:
   285  		return rewriteValueMIPS_OpMIPSMOVFload(v)
   286  	case OpMIPSMOVFstore:
   287  		return rewriteValueMIPS_OpMIPSMOVFstore(v)
   288  	case OpMIPSMOVHUload:
   289  		return rewriteValueMIPS_OpMIPSMOVHUload(v)
   290  	case OpMIPSMOVHUreg:
   291  		return rewriteValueMIPS_OpMIPSMOVHUreg(v)
   292  	case OpMIPSMOVHload:
   293  		return rewriteValueMIPS_OpMIPSMOVHload(v)
   294  	case OpMIPSMOVHreg:
   295  		return rewriteValueMIPS_OpMIPSMOVHreg(v)
   296  	case OpMIPSMOVHstore:
   297  		return rewriteValueMIPS_OpMIPSMOVHstore(v)
   298  	case OpMIPSMOVHstorezero:
   299  		return rewriteValueMIPS_OpMIPSMOVHstorezero(v)
   300  	case OpMIPSMOVWload:
   301  		return rewriteValueMIPS_OpMIPSMOVWload(v)
   302  	case OpMIPSMOVWnop:
   303  		return rewriteValueMIPS_OpMIPSMOVWnop(v)
   304  	case OpMIPSMOVWreg:
   305  		return rewriteValueMIPS_OpMIPSMOVWreg(v)
   306  	case OpMIPSMOVWstore:
   307  		return rewriteValueMIPS_OpMIPSMOVWstore(v)
   308  	case OpMIPSMOVWstorezero:
   309  		return rewriteValueMIPS_OpMIPSMOVWstorezero(v)
   310  	case OpMIPSMUL:
   311  		return rewriteValueMIPS_OpMIPSMUL(v)
   312  	case OpMIPSNEG:
   313  		return rewriteValueMIPS_OpMIPSNEG(v)
   314  	case OpMIPSNOR:
   315  		return rewriteValueMIPS_OpMIPSNOR(v)
   316  	case OpMIPSNORconst:
   317  		return rewriteValueMIPS_OpMIPSNORconst(v)
   318  	case OpMIPSOR:
   319  		return rewriteValueMIPS_OpMIPSOR(v)
   320  	case OpMIPSORconst:
   321  		return rewriteValueMIPS_OpMIPSORconst(v)
   322  	case OpMIPSSGT:
   323  		return rewriteValueMIPS_OpMIPSSGT(v)
   324  	case OpMIPSSGTU:
   325  		return rewriteValueMIPS_OpMIPSSGTU(v)
   326  	case OpMIPSSGTUconst:
   327  		return rewriteValueMIPS_OpMIPSSGTUconst(v)
   328  	case OpMIPSSGTUzero:
   329  		return rewriteValueMIPS_OpMIPSSGTUzero(v)
   330  	case OpMIPSSGTconst:
   331  		return rewriteValueMIPS_OpMIPSSGTconst(v)
   332  	case OpMIPSSGTzero:
   333  		return rewriteValueMIPS_OpMIPSSGTzero(v)
   334  	case OpMIPSSLL:
   335  		return rewriteValueMIPS_OpMIPSSLL(v)
   336  	case OpMIPSSLLconst:
   337  		return rewriteValueMIPS_OpMIPSSLLconst(v)
   338  	case OpMIPSSRA:
   339  		return rewriteValueMIPS_OpMIPSSRA(v)
   340  	case OpMIPSSRAconst:
   341  		return rewriteValueMIPS_OpMIPSSRAconst(v)
   342  	case OpMIPSSRL:
   343  		return rewriteValueMIPS_OpMIPSSRL(v)
   344  	case OpMIPSSRLconst:
   345  		return rewriteValueMIPS_OpMIPSSRLconst(v)
   346  	case OpMIPSSUB:
   347  		return rewriteValueMIPS_OpMIPSSUB(v)
   348  	case OpMIPSSUBconst:
   349  		return rewriteValueMIPS_OpMIPSSUBconst(v)
   350  	case OpMIPSXOR:
   351  		return rewriteValueMIPS_OpMIPSXOR(v)
   352  	case OpMIPSXORconst:
   353  		return rewriteValueMIPS_OpMIPSXORconst(v)
   354  	case OpMod16:
   355  		return rewriteValueMIPS_OpMod16(v)
   356  	case OpMod16u:
   357  		return rewriteValueMIPS_OpMod16u(v)
   358  	case OpMod32:
   359  		return rewriteValueMIPS_OpMod32(v)
   360  	case OpMod32u:
   361  		return rewriteValueMIPS_OpMod32u(v)
   362  	case OpMod8:
   363  		return rewriteValueMIPS_OpMod8(v)
   364  	case OpMod8u:
   365  		return rewriteValueMIPS_OpMod8u(v)
   366  	case OpMove:
   367  		return rewriteValueMIPS_OpMove(v)
   368  	case OpMul16:
   369  		v.Op = OpMIPSMUL
   370  		return true
   371  	case OpMul32:
   372  		v.Op = OpMIPSMUL
   373  		return true
   374  	case OpMul32F:
   375  		v.Op = OpMIPSMULF
   376  		return true
   377  	case OpMul32uhilo:
   378  		v.Op = OpMIPSMULTU
   379  		return true
   380  	case OpMul64F:
   381  		v.Op = OpMIPSMULD
   382  		return true
   383  	case OpMul8:
   384  		v.Op = OpMIPSMUL
   385  		return true
   386  	case OpNeg16:
   387  		v.Op = OpMIPSNEG
   388  		return true
   389  	case OpNeg32:
   390  		v.Op = OpMIPSNEG
   391  		return true
   392  	case OpNeg32F:
   393  		v.Op = OpMIPSNEGF
   394  		return true
   395  	case OpNeg64F:
   396  		v.Op = OpMIPSNEGD
   397  		return true
   398  	case OpNeg8:
   399  		v.Op = OpMIPSNEG
   400  		return true
   401  	case OpNeq16:
   402  		return rewriteValueMIPS_OpNeq16(v)
   403  	case OpNeq32:
   404  		return rewriteValueMIPS_OpNeq32(v)
   405  	case OpNeq32F:
   406  		return rewriteValueMIPS_OpNeq32F(v)
   407  	case OpNeq64F:
   408  		return rewriteValueMIPS_OpNeq64F(v)
   409  	case OpNeq8:
   410  		return rewriteValueMIPS_OpNeq8(v)
   411  	case OpNeqB:
   412  		v.Op = OpMIPSXOR
   413  		return true
   414  	case OpNeqPtr:
   415  		return rewriteValueMIPS_OpNeqPtr(v)
   416  	case OpNilCheck:
   417  		v.Op = OpMIPSLoweredNilCheck
   418  		return true
   419  	case OpNot:
   420  		return rewriteValueMIPS_OpNot(v)
   421  	case OpOffPtr:
   422  		return rewriteValueMIPS_OpOffPtr(v)
   423  	case OpOr16:
   424  		v.Op = OpMIPSOR
   425  		return true
   426  	case OpOr32:
   427  		v.Op = OpMIPSOR
   428  		return true
   429  	case OpOr8:
   430  		v.Op = OpMIPSOR
   431  		return true
   432  	case OpOrB:
   433  		v.Op = OpMIPSOR
   434  		return true
   435  	case OpPanicBounds:
   436  		return rewriteValueMIPS_OpPanicBounds(v)
   437  	case OpPanicExtend:
   438  		return rewriteValueMIPS_OpPanicExtend(v)
   439  	case OpRotateLeft16:
   440  		return rewriteValueMIPS_OpRotateLeft16(v)
   441  	case OpRotateLeft32:
   442  		return rewriteValueMIPS_OpRotateLeft32(v)
   443  	case OpRotateLeft64:
   444  		return rewriteValueMIPS_OpRotateLeft64(v)
   445  	case OpRotateLeft8:
   446  		return rewriteValueMIPS_OpRotateLeft8(v)
   447  	case OpRound32F:
   448  		v.Op = OpCopy
   449  		return true
   450  	case OpRound64F:
   451  		v.Op = OpCopy
   452  		return true
   453  	case OpRsh16Ux16:
   454  		return rewriteValueMIPS_OpRsh16Ux16(v)
   455  	case OpRsh16Ux32:
   456  		return rewriteValueMIPS_OpRsh16Ux32(v)
   457  	case OpRsh16Ux64:
   458  		return rewriteValueMIPS_OpRsh16Ux64(v)
   459  	case OpRsh16Ux8:
   460  		return rewriteValueMIPS_OpRsh16Ux8(v)
   461  	case OpRsh16x16:
   462  		return rewriteValueMIPS_OpRsh16x16(v)
   463  	case OpRsh16x32:
   464  		return rewriteValueMIPS_OpRsh16x32(v)
   465  	case OpRsh16x64:
   466  		return rewriteValueMIPS_OpRsh16x64(v)
   467  	case OpRsh16x8:
   468  		return rewriteValueMIPS_OpRsh16x8(v)
   469  	case OpRsh32Ux16:
   470  		return rewriteValueMIPS_OpRsh32Ux16(v)
   471  	case OpRsh32Ux32:
   472  		return rewriteValueMIPS_OpRsh32Ux32(v)
   473  	case OpRsh32Ux64:
   474  		return rewriteValueMIPS_OpRsh32Ux64(v)
   475  	case OpRsh32Ux8:
   476  		return rewriteValueMIPS_OpRsh32Ux8(v)
   477  	case OpRsh32x16:
   478  		return rewriteValueMIPS_OpRsh32x16(v)
   479  	case OpRsh32x32:
   480  		return rewriteValueMIPS_OpRsh32x32(v)
   481  	case OpRsh32x64:
   482  		return rewriteValueMIPS_OpRsh32x64(v)
   483  	case OpRsh32x8:
   484  		return rewriteValueMIPS_OpRsh32x8(v)
   485  	case OpRsh8Ux16:
   486  		return rewriteValueMIPS_OpRsh8Ux16(v)
   487  	case OpRsh8Ux32:
   488  		return rewriteValueMIPS_OpRsh8Ux32(v)
   489  	case OpRsh8Ux64:
   490  		return rewriteValueMIPS_OpRsh8Ux64(v)
   491  	case OpRsh8Ux8:
   492  		return rewriteValueMIPS_OpRsh8Ux8(v)
   493  	case OpRsh8x16:
   494  		return rewriteValueMIPS_OpRsh8x16(v)
   495  	case OpRsh8x32:
   496  		return rewriteValueMIPS_OpRsh8x32(v)
   497  	case OpRsh8x64:
   498  		return rewriteValueMIPS_OpRsh8x64(v)
   499  	case OpRsh8x8:
   500  		return rewriteValueMIPS_OpRsh8x8(v)
   501  	case OpSelect0:
   502  		return rewriteValueMIPS_OpSelect0(v)
   503  	case OpSelect1:
   504  		return rewriteValueMIPS_OpSelect1(v)
   505  	case OpSignExt16to32:
   506  		v.Op = OpMIPSMOVHreg
   507  		return true
   508  	case OpSignExt8to16:
   509  		v.Op = OpMIPSMOVBreg
   510  		return true
   511  	case OpSignExt8to32:
   512  		v.Op = OpMIPSMOVBreg
   513  		return true
   514  	case OpSignmask:
   515  		return rewriteValueMIPS_OpSignmask(v)
   516  	case OpSlicemask:
   517  		return rewriteValueMIPS_OpSlicemask(v)
   518  	case OpSqrt:
   519  		v.Op = OpMIPSSQRTD
   520  		return true
   521  	case OpSqrt32:
   522  		v.Op = OpMIPSSQRTF
   523  		return true
   524  	case OpStaticCall:
   525  		v.Op = OpMIPSCALLstatic
   526  		return true
   527  	case OpStore:
   528  		return rewriteValueMIPS_OpStore(v)
   529  	case OpSub16:
   530  		v.Op = OpMIPSSUB
   531  		return true
   532  	case OpSub32:
   533  		v.Op = OpMIPSSUB
   534  		return true
   535  	case OpSub32F:
   536  		v.Op = OpMIPSSUBF
   537  		return true
   538  	case OpSub32withcarry:
   539  		return rewriteValueMIPS_OpSub32withcarry(v)
   540  	case OpSub64F:
   541  		v.Op = OpMIPSSUBD
   542  		return true
   543  	case OpSub8:
   544  		v.Op = OpMIPSSUB
   545  		return true
   546  	case OpSubPtr:
   547  		v.Op = OpMIPSSUB
   548  		return true
   549  	case OpTailCall:
   550  		v.Op = OpMIPSCALLtail
   551  		return true
   552  	case OpTrunc16to8:
   553  		v.Op = OpCopy
   554  		return true
   555  	case OpTrunc32to16:
   556  		v.Op = OpCopy
   557  		return true
   558  	case OpTrunc32to8:
   559  		v.Op = OpCopy
   560  		return true
   561  	case OpWB:
   562  		v.Op = OpMIPSLoweredWB
   563  		return true
   564  	case OpXor16:
   565  		v.Op = OpMIPSXOR
   566  		return true
   567  	case OpXor32:
   568  		v.Op = OpMIPSXOR
   569  		return true
   570  	case OpXor8:
   571  		v.Op = OpMIPSXOR
   572  		return true
   573  	case OpZero:
   574  		return rewriteValueMIPS_OpZero(v)
   575  	case OpZeroExt16to32:
   576  		v.Op = OpMIPSMOVHUreg
   577  		return true
   578  	case OpZeroExt8to16:
   579  		v.Op = OpMIPSMOVBUreg
   580  		return true
   581  	case OpZeroExt8to32:
   582  		v.Op = OpMIPSMOVBUreg
   583  		return true
   584  	case OpZeromask:
   585  		return rewriteValueMIPS_OpZeromask(v)
   586  	}
   587  	return false
   588  }
   589  func rewriteValueMIPS_OpAdd32withcarry(v *Value) bool {
   590  	v_2 := v.Args[2]
   591  	v_1 := v.Args[1]
   592  	v_0 := v.Args[0]
   593  	b := v.Block
   594  	// match: (Add32withcarry <t> x y c)
   595  	// result: (ADD c (ADD <t> x y))
   596  	for {
   597  		t := v.Type
   598  		x := v_0
   599  		y := v_1
   600  		c := v_2
   601  		v.reset(OpMIPSADD)
   602  		v0 := b.NewValue0(v.Pos, OpMIPSADD, t)
   603  		v0.AddArg2(x, y)
   604  		v.AddArg2(c, v0)
   605  		return true
   606  	}
   607  }
   608  func rewriteValueMIPS_OpAddr(v *Value) bool {
   609  	v_0 := v.Args[0]
   610  	// match: (Addr {sym} base)
   611  	// result: (MOVWaddr {sym} base)
   612  	for {
   613  		sym := auxToSym(v.Aux)
   614  		base := v_0
   615  		v.reset(OpMIPSMOVWaddr)
   616  		v.Aux = symToAux(sym)
   617  		v.AddArg(base)
   618  		return true
   619  	}
   620  }
   621  func rewriteValueMIPS_OpAtomicAnd8(v *Value) bool {
   622  	v_2 := v.Args[2]
   623  	v_1 := v.Args[1]
   624  	v_0 := v.Args[0]
   625  	b := v.Block
   626  	config := b.Func.Config
   627  	typ := &b.Func.Config.Types
   628  	// match: (AtomicAnd8 ptr val mem)
   629  	// cond: !config.BigEndian
   630  	// result: (LoweredAtomicAnd (AND <typ.UInt32Ptr> (MOVWconst [^3]) ptr) (OR <typ.UInt32> (SLL <typ.UInt32> (ZeroExt8to32 val) (SLLconst <typ.UInt32> [3] (ANDconst <typ.UInt32> [3] ptr))) (NORconst [0] <typ.UInt32> (SLL <typ.UInt32> (MOVWconst [0xff]) (SLLconst <typ.UInt32> [3] (ANDconst <typ.UInt32> [3] ptr))))) mem)
   631  	for {
   632  		ptr := v_0
   633  		val := v_1
   634  		mem := v_2
   635  		if !(!config.BigEndian) {
   636  			break
   637  		}
   638  		v.reset(OpMIPSLoweredAtomicAnd)
   639  		v0 := b.NewValue0(v.Pos, OpMIPSAND, typ.UInt32Ptr)
   640  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   641  		v1.AuxInt = int32ToAuxInt(^3)
   642  		v0.AddArg2(v1, ptr)
   643  		v2 := b.NewValue0(v.Pos, OpMIPSOR, typ.UInt32)
   644  		v3 := b.NewValue0(v.Pos, OpMIPSSLL, typ.UInt32)
   645  		v4 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
   646  		v4.AddArg(val)
   647  		v5 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
   648  		v5.AuxInt = int32ToAuxInt(3)
   649  		v6 := b.NewValue0(v.Pos, OpMIPSANDconst, typ.UInt32)
   650  		v6.AuxInt = int32ToAuxInt(3)
   651  		v6.AddArg(ptr)
   652  		v5.AddArg(v6)
   653  		v3.AddArg2(v4, v5)
   654  		v7 := b.NewValue0(v.Pos, OpMIPSNORconst, typ.UInt32)
   655  		v7.AuxInt = int32ToAuxInt(0)
   656  		v8 := b.NewValue0(v.Pos, OpMIPSSLL, typ.UInt32)
   657  		v9 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   658  		v9.AuxInt = int32ToAuxInt(0xff)
   659  		v8.AddArg2(v9, v5)
   660  		v7.AddArg(v8)
   661  		v2.AddArg2(v3, v7)
   662  		v.AddArg3(v0, v2, mem)
   663  		return true
   664  	}
   665  	// match: (AtomicAnd8 ptr val mem)
   666  	// cond: config.BigEndian
   667  	// result: (LoweredAtomicAnd (AND <typ.UInt32Ptr> (MOVWconst [^3]) ptr) (OR <typ.UInt32> (SLL <typ.UInt32> (ZeroExt8to32 val) (SLLconst <typ.UInt32> [3] (ANDconst <typ.UInt32> [3] (XORconst <typ.UInt32> [3] ptr)))) (NORconst [0] <typ.UInt32> (SLL <typ.UInt32> (MOVWconst [0xff]) (SLLconst <typ.UInt32> [3] (ANDconst <typ.UInt32> [3] (XORconst <typ.UInt32> [3] ptr)))))) mem)
   668  	for {
   669  		ptr := v_0
   670  		val := v_1
   671  		mem := v_2
   672  		if !(config.BigEndian) {
   673  			break
   674  		}
   675  		v.reset(OpMIPSLoweredAtomicAnd)
   676  		v0 := b.NewValue0(v.Pos, OpMIPSAND, typ.UInt32Ptr)
   677  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   678  		v1.AuxInt = int32ToAuxInt(^3)
   679  		v0.AddArg2(v1, ptr)
   680  		v2 := b.NewValue0(v.Pos, OpMIPSOR, typ.UInt32)
   681  		v3 := b.NewValue0(v.Pos, OpMIPSSLL, typ.UInt32)
   682  		v4 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
   683  		v4.AddArg(val)
   684  		v5 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
   685  		v5.AuxInt = int32ToAuxInt(3)
   686  		v6 := b.NewValue0(v.Pos, OpMIPSANDconst, typ.UInt32)
   687  		v6.AuxInt = int32ToAuxInt(3)
   688  		v7 := b.NewValue0(v.Pos, OpMIPSXORconst, typ.UInt32)
   689  		v7.AuxInt = int32ToAuxInt(3)
   690  		v7.AddArg(ptr)
   691  		v6.AddArg(v7)
   692  		v5.AddArg(v6)
   693  		v3.AddArg2(v4, v5)
   694  		v8 := b.NewValue0(v.Pos, OpMIPSNORconst, typ.UInt32)
   695  		v8.AuxInt = int32ToAuxInt(0)
   696  		v9 := b.NewValue0(v.Pos, OpMIPSSLL, typ.UInt32)
   697  		v10 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   698  		v10.AuxInt = int32ToAuxInt(0xff)
   699  		v9.AddArg2(v10, v5)
   700  		v8.AddArg(v9)
   701  		v2.AddArg2(v3, v8)
   702  		v.AddArg3(v0, v2, mem)
   703  		return true
   704  	}
   705  	return false
   706  }
   707  func rewriteValueMIPS_OpAtomicOr8(v *Value) bool {
   708  	v_2 := v.Args[2]
   709  	v_1 := v.Args[1]
   710  	v_0 := v.Args[0]
   711  	b := v.Block
   712  	config := b.Func.Config
   713  	typ := &b.Func.Config.Types
   714  	// match: (AtomicOr8 ptr val mem)
   715  	// cond: !config.BigEndian
   716  	// result: (LoweredAtomicOr (AND <typ.UInt32Ptr> (MOVWconst [^3]) ptr) (SLL <typ.UInt32> (ZeroExt8to32 val) (SLLconst <typ.UInt32> [3] (ANDconst <typ.UInt32> [3] ptr))) mem)
   717  	for {
   718  		ptr := v_0
   719  		val := v_1
   720  		mem := v_2
   721  		if !(!config.BigEndian) {
   722  			break
   723  		}
   724  		v.reset(OpMIPSLoweredAtomicOr)
   725  		v0 := b.NewValue0(v.Pos, OpMIPSAND, typ.UInt32Ptr)
   726  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   727  		v1.AuxInt = int32ToAuxInt(^3)
   728  		v0.AddArg2(v1, ptr)
   729  		v2 := b.NewValue0(v.Pos, OpMIPSSLL, typ.UInt32)
   730  		v3 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
   731  		v3.AddArg(val)
   732  		v4 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
   733  		v4.AuxInt = int32ToAuxInt(3)
   734  		v5 := b.NewValue0(v.Pos, OpMIPSANDconst, typ.UInt32)
   735  		v5.AuxInt = int32ToAuxInt(3)
   736  		v5.AddArg(ptr)
   737  		v4.AddArg(v5)
   738  		v2.AddArg2(v3, v4)
   739  		v.AddArg3(v0, v2, mem)
   740  		return true
   741  	}
   742  	// match: (AtomicOr8 ptr val mem)
   743  	// cond: config.BigEndian
   744  	// result: (LoweredAtomicOr (AND <typ.UInt32Ptr> (MOVWconst [^3]) ptr) (SLL <typ.UInt32> (ZeroExt8to32 val) (SLLconst <typ.UInt32> [3] (ANDconst <typ.UInt32> [3] (XORconst <typ.UInt32> [3] ptr)))) mem)
   745  	for {
   746  		ptr := v_0
   747  		val := v_1
   748  		mem := v_2
   749  		if !(config.BigEndian) {
   750  			break
   751  		}
   752  		v.reset(OpMIPSLoweredAtomicOr)
   753  		v0 := b.NewValue0(v.Pos, OpMIPSAND, typ.UInt32Ptr)
   754  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   755  		v1.AuxInt = int32ToAuxInt(^3)
   756  		v0.AddArg2(v1, ptr)
   757  		v2 := b.NewValue0(v.Pos, OpMIPSSLL, typ.UInt32)
   758  		v3 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
   759  		v3.AddArg(val)
   760  		v4 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
   761  		v4.AuxInt = int32ToAuxInt(3)
   762  		v5 := b.NewValue0(v.Pos, OpMIPSANDconst, typ.UInt32)
   763  		v5.AuxInt = int32ToAuxInt(3)
   764  		v6 := b.NewValue0(v.Pos, OpMIPSXORconst, typ.UInt32)
   765  		v6.AuxInt = int32ToAuxInt(3)
   766  		v6.AddArg(ptr)
   767  		v5.AddArg(v6)
   768  		v4.AddArg(v5)
   769  		v2.AddArg2(v3, v4)
   770  		v.AddArg3(v0, v2, mem)
   771  		return true
   772  	}
   773  	return false
   774  }
   775  func rewriteValueMIPS_OpAvg32u(v *Value) bool {
   776  	v_1 := v.Args[1]
   777  	v_0 := v.Args[0]
   778  	b := v.Block
   779  	// match: (Avg32u <t> x y)
   780  	// result: (ADD (SRLconst <t> (SUB <t> x y) [1]) y)
   781  	for {
   782  		t := v.Type
   783  		x := v_0
   784  		y := v_1
   785  		v.reset(OpMIPSADD)
   786  		v0 := b.NewValue0(v.Pos, OpMIPSSRLconst, t)
   787  		v0.AuxInt = int32ToAuxInt(1)
   788  		v1 := b.NewValue0(v.Pos, OpMIPSSUB, t)
   789  		v1.AddArg2(x, y)
   790  		v0.AddArg(v1)
   791  		v.AddArg2(v0, y)
   792  		return true
   793  	}
   794  }
   795  func rewriteValueMIPS_OpBitLen32(v *Value) bool {
   796  	v_0 := v.Args[0]
   797  	b := v.Block
   798  	typ := &b.Func.Config.Types
   799  	// match: (BitLen32 <t> x)
   800  	// result: (SUB (MOVWconst [32]) (CLZ <t> x))
   801  	for {
   802  		t := v.Type
   803  		x := v_0
   804  		v.reset(OpMIPSSUB)
   805  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   806  		v0.AuxInt = int32ToAuxInt(32)
   807  		v1 := b.NewValue0(v.Pos, OpMIPSCLZ, t)
   808  		v1.AddArg(x)
   809  		v.AddArg2(v0, v1)
   810  		return true
   811  	}
   812  }
   813  func rewriteValueMIPS_OpCom16(v *Value) bool {
   814  	v_0 := v.Args[0]
   815  	// match: (Com16 x)
   816  	// result: (NORconst [0] x)
   817  	for {
   818  		x := v_0
   819  		v.reset(OpMIPSNORconst)
   820  		v.AuxInt = int32ToAuxInt(0)
   821  		v.AddArg(x)
   822  		return true
   823  	}
   824  }
   825  func rewriteValueMIPS_OpCom32(v *Value) bool {
   826  	v_0 := v.Args[0]
   827  	// match: (Com32 x)
   828  	// result: (NORconst [0] x)
   829  	for {
   830  		x := v_0
   831  		v.reset(OpMIPSNORconst)
   832  		v.AuxInt = int32ToAuxInt(0)
   833  		v.AddArg(x)
   834  		return true
   835  	}
   836  }
   837  func rewriteValueMIPS_OpCom8(v *Value) bool {
   838  	v_0 := v.Args[0]
   839  	// match: (Com8 x)
   840  	// result: (NORconst [0] x)
   841  	for {
   842  		x := v_0
   843  		v.reset(OpMIPSNORconst)
   844  		v.AuxInt = int32ToAuxInt(0)
   845  		v.AddArg(x)
   846  		return true
   847  	}
   848  }
   849  func rewriteValueMIPS_OpConst16(v *Value) bool {
   850  	// match: (Const16 [val])
   851  	// result: (MOVWconst [int32(val)])
   852  	for {
   853  		val := auxIntToInt16(v.AuxInt)
   854  		v.reset(OpMIPSMOVWconst)
   855  		v.AuxInt = int32ToAuxInt(int32(val))
   856  		return true
   857  	}
   858  }
   859  func rewriteValueMIPS_OpConst32(v *Value) bool {
   860  	// match: (Const32 [val])
   861  	// result: (MOVWconst [int32(val)])
   862  	for {
   863  		val := auxIntToInt32(v.AuxInt)
   864  		v.reset(OpMIPSMOVWconst)
   865  		v.AuxInt = int32ToAuxInt(int32(val))
   866  		return true
   867  	}
   868  }
   869  func rewriteValueMIPS_OpConst8(v *Value) bool {
   870  	// match: (Const8 [val])
   871  	// result: (MOVWconst [int32(val)])
   872  	for {
   873  		val := auxIntToInt8(v.AuxInt)
   874  		v.reset(OpMIPSMOVWconst)
   875  		v.AuxInt = int32ToAuxInt(int32(val))
   876  		return true
   877  	}
   878  }
   879  func rewriteValueMIPS_OpConstBool(v *Value) bool {
   880  	// match: (ConstBool [t])
   881  	// result: (MOVWconst [b2i32(t)])
   882  	for {
   883  		t := auxIntToBool(v.AuxInt)
   884  		v.reset(OpMIPSMOVWconst)
   885  		v.AuxInt = int32ToAuxInt(b2i32(t))
   886  		return true
   887  	}
   888  }
   889  func rewriteValueMIPS_OpConstNil(v *Value) bool {
   890  	// match: (ConstNil)
   891  	// result: (MOVWconst [0])
   892  	for {
   893  		v.reset(OpMIPSMOVWconst)
   894  		v.AuxInt = int32ToAuxInt(0)
   895  		return true
   896  	}
   897  }
   898  func rewriteValueMIPS_OpCtz32(v *Value) bool {
   899  	v_0 := v.Args[0]
   900  	b := v.Block
   901  	typ := &b.Func.Config.Types
   902  	// match: (Ctz32 <t> x)
   903  	// result: (SUB (MOVWconst [32]) (CLZ <t> (SUBconst <t> [1] (AND <t> x (NEG <t> x)))))
   904  	for {
   905  		t := v.Type
   906  		x := v_0
   907  		v.reset(OpMIPSSUB)
   908  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
   909  		v0.AuxInt = int32ToAuxInt(32)
   910  		v1 := b.NewValue0(v.Pos, OpMIPSCLZ, t)
   911  		v2 := b.NewValue0(v.Pos, OpMIPSSUBconst, t)
   912  		v2.AuxInt = int32ToAuxInt(1)
   913  		v3 := b.NewValue0(v.Pos, OpMIPSAND, t)
   914  		v4 := b.NewValue0(v.Pos, OpMIPSNEG, t)
   915  		v4.AddArg(x)
   916  		v3.AddArg2(x, v4)
   917  		v2.AddArg(v3)
   918  		v1.AddArg(v2)
   919  		v.AddArg2(v0, v1)
   920  		return true
   921  	}
   922  }
   923  func rewriteValueMIPS_OpDiv16(v *Value) bool {
   924  	v_1 := v.Args[1]
   925  	v_0 := v.Args[0]
   926  	b := v.Block
   927  	typ := &b.Func.Config.Types
   928  	// match: (Div16 x y)
   929  	// result: (Select1 (DIV (SignExt16to32 x) (SignExt16to32 y)))
   930  	for {
   931  		x := v_0
   932  		y := v_1
   933  		v.reset(OpSelect1)
   934  		v0 := b.NewValue0(v.Pos, OpMIPSDIV, types.NewTuple(typ.Int32, typ.Int32))
   935  		v1 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
   936  		v1.AddArg(x)
   937  		v2 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
   938  		v2.AddArg(y)
   939  		v0.AddArg2(v1, v2)
   940  		v.AddArg(v0)
   941  		return true
   942  	}
   943  }
   944  func rewriteValueMIPS_OpDiv16u(v *Value) bool {
   945  	v_1 := v.Args[1]
   946  	v_0 := v.Args[0]
   947  	b := v.Block
   948  	typ := &b.Func.Config.Types
   949  	// match: (Div16u x y)
   950  	// result: (Select1 (DIVU (ZeroExt16to32 x) (ZeroExt16to32 y)))
   951  	for {
   952  		x := v_0
   953  		y := v_1
   954  		v.reset(OpSelect1)
   955  		v0 := b.NewValue0(v.Pos, OpMIPSDIVU, types.NewTuple(typ.UInt32, typ.UInt32))
   956  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
   957  		v1.AddArg(x)
   958  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
   959  		v2.AddArg(y)
   960  		v0.AddArg2(v1, v2)
   961  		v.AddArg(v0)
   962  		return true
   963  	}
   964  }
   965  func rewriteValueMIPS_OpDiv32(v *Value) bool {
   966  	v_1 := v.Args[1]
   967  	v_0 := v.Args[0]
   968  	b := v.Block
   969  	typ := &b.Func.Config.Types
   970  	// match: (Div32 x y)
   971  	// result: (Select1 (DIV x y))
   972  	for {
   973  		x := v_0
   974  		y := v_1
   975  		v.reset(OpSelect1)
   976  		v0 := b.NewValue0(v.Pos, OpMIPSDIV, types.NewTuple(typ.Int32, typ.Int32))
   977  		v0.AddArg2(x, y)
   978  		v.AddArg(v0)
   979  		return true
   980  	}
   981  }
   982  func rewriteValueMIPS_OpDiv32u(v *Value) bool {
   983  	v_1 := v.Args[1]
   984  	v_0 := v.Args[0]
   985  	b := v.Block
   986  	typ := &b.Func.Config.Types
   987  	// match: (Div32u x y)
   988  	// result: (Select1 (DIVU x y))
   989  	for {
   990  		x := v_0
   991  		y := v_1
   992  		v.reset(OpSelect1)
   993  		v0 := b.NewValue0(v.Pos, OpMIPSDIVU, types.NewTuple(typ.UInt32, typ.UInt32))
   994  		v0.AddArg2(x, y)
   995  		v.AddArg(v0)
   996  		return true
   997  	}
   998  }
   999  func rewriteValueMIPS_OpDiv8(v *Value) bool {
  1000  	v_1 := v.Args[1]
  1001  	v_0 := v.Args[0]
  1002  	b := v.Block
  1003  	typ := &b.Func.Config.Types
  1004  	// match: (Div8 x y)
  1005  	// result: (Select1 (DIV (SignExt8to32 x) (SignExt8to32 y)))
  1006  	for {
  1007  		x := v_0
  1008  		y := v_1
  1009  		v.reset(OpSelect1)
  1010  		v0 := b.NewValue0(v.Pos, OpMIPSDIV, types.NewTuple(typ.Int32, typ.Int32))
  1011  		v1 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  1012  		v1.AddArg(x)
  1013  		v2 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  1014  		v2.AddArg(y)
  1015  		v0.AddArg2(v1, v2)
  1016  		v.AddArg(v0)
  1017  		return true
  1018  	}
  1019  }
  1020  func rewriteValueMIPS_OpDiv8u(v *Value) bool {
  1021  	v_1 := v.Args[1]
  1022  	v_0 := v.Args[0]
  1023  	b := v.Block
  1024  	typ := &b.Func.Config.Types
  1025  	// match: (Div8u x y)
  1026  	// result: (Select1 (DIVU (ZeroExt8to32 x) (ZeroExt8to32 y)))
  1027  	for {
  1028  		x := v_0
  1029  		y := v_1
  1030  		v.reset(OpSelect1)
  1031  		v0 := b.NewValue0(v.Pos, OpMIPSDIVU, types.NewTuple(typ.UInt32, typ.UInt32))
  1032  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1033  		v1.AddArg(x)
  1034  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1035  		v2.AddArg(y)
  1036  		v0.AddArg2(v1, v2)
  1037  		v.AddArg(v0)
  1038  		return true
  1039  	}
  1040  }
  1041  func rewriteValueMIPS_OpEq16(v *Value) bool {
  1042  	v_1 := v.Args[1]
  1043  	v_0 := v.Args[0]
  1044  	b := v.Block
  1045  	typ := &b.Func.Config.Types
  1046  	// match: (Eq16 x y)
  1047  	// result: (SGTUconst [1] (XOR (ZeroExt16to32 x) (ZeroExt16to32 y)))
  1048  	for {
  1049  		x := v_0
  1050  		y := v_1
  1051  		v.reset(OpMIPSSGTUconst)
  1052  		v.AuxInt = int32ToAuxInt(1)
  1053  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  1054  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1055  		v1.AddArg(x)
  1056  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1057  		v2.AddArg(y)
  1058  		v0.AddArg2(v1, v2)
  1059  		v.AddArg(v0)
  1060  		return true
  1061  	}
  1062  }
  1063  func rewriteValueMIPS_OpEq32(v *Value) bool {
  1064  	v_1 := v.Args[1]
  1065  	v_0 := v.Args[0]
  1066  	b := v.Block
  1067  	typ := &b.Func.Config.Types
  1068  	// match: (Eq32 x y)
  1069  	// result: (SGTUconst [1] (XOR x y))
  1070  	for {
  1071  		x := v_0
  1072  		y := v_1
  1073  		v.reset(OpMIPSSGTUconst)
  1074  		v.AuxInt = int32ToAuxInt(1)
  1075  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  1076  		v0.AddArg2(x, y)
  1077  		v.AddArg(v0)
  1078  		return true
  1079  	}
  1080  }
  1081  func rewriteValueMIPS_OpEq32F(v *Value) bool {
  1082  	v_1 := v.Args[1]
  1083  	v_0 := v.Args[0]
  1084  	b := v.Block
  1085  	// match: (Eq32F x y)
  1086  	// result: (FPFlagTrue (CMPEQF x y))
  1087  	for {
  1088  		x := v_0
  1089  		y := v_1
  1090  		v.reset(OpMIPSFPFlagTrue)
  1091  		v0 := b.NewValue0(v.Pos, OpMIPSCMPEQF, types.TypeFlags)
  1092  		v0.AddArg2(x, y)
  1093  		v.AddArg(v0)
  1094  		return true
  1095  	}
  1096  }
  1097  func rewriteValueMIPS_OpEq64F(v *Value) bool {
  1098  	v_1 := v.Args[1]
  1099  	v_0 := v.Args[0]
  1100  	b := v.Block
  1101  	// match: (Eq64F x y)
  1102  	// result: (FPFlagTrue (CMPEQD x y))
  1103  	for {
  1104  		x := v_0
  1105  		y := v_1
  1106  		v.reset(OpMIPSFPFlagTrue)
  1107  		v0 := b.NewValue0(v.Pos, OpMIPSCMPEQD, types.TypeFlags)
  1108  		v0.AddArg2(x, y)
  1109  		v.AddArg(v0)
  1110  		return true
  1111  	}
  1112  }
  1113  func rewriteValueMIPS_OpEq8(v *Value) bool {
  1114  	v_1 := v.Args[1]
  1115  	v_0 := v.Args[0]
  1116  	b := v.Block
  1117  	typ := &b.Func.Config.Types
  1118  	// match: (Eq8 x y)
  1119  	// result: (SGTUconst [1] (XOR (ZeroExt8to32 x) (ZeroExt8to32 y)))
  1120  	for {
  1121  		x := v_0
  1122  		y := v_1
  1123  		v.reset(OpMIPSSGTUconst)
  1124  		v.AuxInt = int32ToAuxInt(1)
  1125  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  1126  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1127  		v1.AddArg(x)
  1128  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1129  		v2.AddArg(y)
  1130  		v0.AddArg2(v1, v2)
  1131  		v.AddArg(v0)
  1132  		return true
  1133  	}
  1134  }
  1135  func rewriteValueMIPS_OpEqB(v *Value) bool {
  1136  	v_1 := v.Args[1]
  1137  	v_0 := v.Args[0]
  1138  	b := v.Block
  1139  	typ := &b.Func.Config.Types
  1140  	// match: (EqB x y)
  1141  	// result: (XORconst [1] (XOR <typ.Bool> x y))
  1142  	for {
  1143  		x := v_0
  1144  		y := v_1
  1145  		v.reset(OpMIPSXORconst)
  1146  		v.AuxInt = int32ToAuxInt(1)
  1147  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.Bool)
  1148  		v0.AddArg2(x, y)
  1149  		v.AddArg(v0)
  1150  		return true
  1151  	}
  1152  }
  1153  func rewriteValueMIPS_OpEqPtr(v *Value) bool {
  1154  	v_1 := v.Args[1]
  1155  	v_0 := v.Args[0]
  1156  	b := v.Block
  1157  	typ := &b.Func.Config.Types
  1158  	// match: (EqPtr x y)
  1159  	// result: (SGTUconst [1] (XOR x y))
  1160  	for {
  1161  		x := v_0
  1162  		y := v_1
  1163  		v.reset(OpMIPSSGTUconst)
  1164  		v.AuxInt = int32ToAuxInt(1)
  1165  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  1166  		v0.AddArg2(x, y)
  1167  		v.AddArg(v0)
  1168  		return true
  1169  	}
  1170  }
  1171  func rewriteValueMIPS_OpHmul32(v *Value) bool {
  1172  	v_1 := v.Args[1]
  1173  	v_0 := v.Args[0]
  1174  	b := v.Block
  1175  	typ := &b.Func.Config.Types
  1176  	// match: (Hmul32 x y)
  1177  	// result: (Select0 (MULT x y))
  1178  	for {
  1179  		x := v_0
  1180  		y := v_1
  1181  		v.reset(OpSelect0)
  1182  		v0 := b.NewValue0(v.Pos, OpMIPSMULT, types.NewTuple(typ.Int32, typ.Int32))
  1183  		v0.AddArg2(x, y)
  1184  		v.AddArg(v0)
  1185  		return true
  1186  	}
  1187  }
  1188  func rewriteValueMIPS_OpHmul32u(v *Value) bool {
  1189  	v_1 := v.Args[1]
  1190  	v_0 := v.Args[0]
  1191  	b := v.Block
  1192  	typ := &b.Func.Config.Types
  1193  	// match: (Hmul32u x y)
  1194  	// result: (Select0 (MULTU x y))
  1195  	for {
  1196  		x := v_0
  1197  		y := v_1
  1198  		v.reset(OpSelect0)
  1199  		v0 := b.NewValue0(v.Pos, OpMIPSMULTU, types.NewTuple(typ.UInt32, typ.UInt32))
  1200  		v0.AddArg2(x, y)
  1201  		v.AddArg(v0)
  1202  		return true
  1203  	}
  1204  }
  1205  func rewriteValueMIPS_OpIsInBounds(v *Value) bool {
  1206  	v_1 := v.Args[1]
  1207  	v_0 := v.Args[0]
  1208  	// match: (IsInBounds idx len)
  1209  	// result: (SGTU len idx)
  1210  	for {
  1211  		idx := v_0
  1212  		len := v_1
  1213  		v.reset(OpMIPSSGTU)
  1214  		v.AddArg2(len, idx)
  1215  		return true
  1216  	}
  1217  }
  1218  func rewriteValueMIPS_OpIsNonNil(v *Value) bool {
  1219  	v_0 := v.Args[0]
  1220  	b := v.Block
  1221  	typ := &b.Func.Config.Types
  1222  	// match: (IsNonNil ptr)
  1223  	// result: (SGTU ptr (MOVWconst [0]))
  1224  	for {
  1225  		ptr := v_0
  1226  		v.reset(OpMIPSSGTU)
  1227  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1228  		v0.AuxInt = int32ToAuxInt(0)
  1229  		v.AddArg2(ptr, v0)
  1230  		return true
  1231  	}
  1232  }
  1233  func rewriteValueMIPS_OpIsSliceInBounds(v *Value) bool {
  1234  	v_1 := v.Args[1]
  1235  	v_0 := v.Args[0]
  1236  	b := v.Block
  1237  	typ := &b.Func.Config.Types
  1238  	// match: (IsSliceInBounds idx len)
  1239  	// result: (XORconst [1] (SGTU idx len))
  1240  	for {
  1241  		idx := v_0
  1242  		len := v_1
  1243  		v.reset(OpMIPSXORconst)
  1244  		v.AuxInt = int32ToAuxInt(1)
  1245  		v0 := b.NewValue0(v.Pos, OpMIPSSGTU, typ.Bool)
  1246  		v0.AddArg2(idx, len)
  1247  		v.AddArg(v0)
  1248  		return true
  1249  	}
  1250  }
  1251  func rewriteValueMIPS_OpLeq16(v *Value) bool {
  1252  	v_1 := v.Args[1]
  1253  	v_0 := v.Args[0]
  1254  	b := v.Block
  1255  	typ := &b.Func.Config.Types
  1256  	// match: (Leq16 x y)
  1257  	// result: (XORconst [1] (SGT (SignExt16to32 x) (SignExt16to32 y)))
  1258  	for {
  1259  		x := v_0
  1260  		y := v_1
  1261  		v.reset(OpMIPSXORconst)
  1262  		v.AuxInt = int32ToAuxInt(1)
  1263  		v0 := b.NewValue0(v.Pos, OpMIPSSGT, typ.Bool)
  1264  		v1 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  1265  		v1.AddArg(x)
  1266  		v2 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  1267  		v2.AddArg(y)
  1268  		v0.AddArg2(v1, v2)
  1269  		v.AddArg(v0)
  1270  		return true
  1271  	}
  1272  }
  1273  func rewriteValueMIPS_OpLeq16U(v *Value) bool {
  1274  	v_1 := v.Args[1]
  1275  	v_0 := v.Args[0]
  1276  	b := v.Block
  1277  	typ := &b.Func.Config.Types
  1278  	// match: (Leq16U x y)
  1279  	// result: (XORconst [1] (SGTU (ZeroExt16to32 x) (ZeroExt16to32 y)))
  1280  	for {
  1281  		x := v_0
  1282  		y := v_1
  1283  		v.reset(OpMIPSXORconst)
  1284  		v.AuxInt = int32ToAuxInt(1)
  1285  		v0 := b.NewValue0(v.Pos, OpMIPSSGTU, typ.Bool)
  1286  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1287  		v1.AddArg(x)
  1288  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1289  		v2.AddArg(y)
  1290  		v0.AddArg2(v1, v2)
  1291  		v.AddArg(v0)
  1292  		return true
  1293  	}
  1294  }
  1295  func rewriteValueMIPS_OpLeq32(v *Value) bool {
  1296  	v_1 := v.Args[1]
  1297  	v_0 := v.Args[0]
  1298  	b := v.Block
  1299  	typ := &b.Func.Config.Types
  1300  	// match: (Leq32 x y)
  1301  	// result: (XORconst [1] (SGT x y))
  1302  	for {
  1303  		x := v_0
  1304  		y := v_1
  1305  		v.reset(OpMIPSXORconst)
  1306  		v.AuxInt = int32ToAuxInt(1)
  1307  		v0 := b.NewValue0(v.Pos, OpMIPSSGT, typ.Bool)
  1308  		v0.AddArg2(x, y)
  1309  		v.AddArg(v0)
  1310  		return true
  1311  	}
  1312  }
  1313  func rewriteValueMIPS_OpLeq32F(v *Value) bool {
  1314  	v_1 := v.Args[1]
  1315  	v_0 := v.Args[0]
  1316  	b := v.Block
  1317  	// match: (Leq32F x y)
  1318  	// result: (FPFlagTrue (CMPGEF y x))
  1319  	for {
  1320  		x := v_0
  1321  		y := v_1
  1322  		v.reset(OpMIPSFPFlagTrue)
  1323  		v0 := b.NewValue0(v.Pos, OpMIPSCMPGEF, types.TypeFlags)
  1324  		v0.AddArg2(y, x)
  1325  		v.AddArg(v0)
  1326  		return true
  1327  	}
  1328  }
  1329  func rewriteValueMIPS_OpLeq32U(v *Value) bool {
  1330  	v_1 := v.Args[1]
  1331  	v_0 := v.Args[0]
  1332  	b := v.Block
  1333  	typ := &b.Func.Config.Types
  1334  	// match: (Leq32U x y)
  1335  	// result: (XORconst [1] (SGTU x y))
  1336  	for {
  1337  		x := v_0
  1338  		y := v_1
  1339  		v.reset(OpMIPSXORconst)
  1340  		v.AuxInt = int32ToAuxInt(1)
  1341  		v0 := b.NewValue0(v.Pos, OpMIPSSGTU, typ.Bool)
  1342  		v0.AddArg2(x, y)
  1343  		v.AddArg(v0)
  1344  		return true
  1345  	}
  1346  }
  1347  func rewriteValueMIPS_OpLeq64F(v *Value) bool {
  1348  	v_1 := v.Args[1]
  1349  	v_0 := v.Args[0]
  1350  	b := v.Block
  1351  	// match: (Leq64F x y)
  1352  	// result: (FPFlagTrue (CMPGED y x))
  1353  	for {
  1354  		x := v_0
  1355  		y := v_1
  1356  		v.reset(OpMIPSFPFlagTrue)
  1357  		v0 := b.NewValue0(v.Pos, OpMIPSCMPGED, types.TypeFlags)
  1358  		v0.AddArg2(y, x)
  1359  		v.AddArg(v0)
  1360  		return true
  1361  	}
  1362  }
  1363  func rewriteValueMIPS_OpLeq8(v *Value) bool {
  1364  	v_1 := v.Args[1]
  1365  	v_0 := v.Args[0]
  1366  	b := v.Block
  1367  	typ := &b.Func.Config.Types
  1368  	// match: (Leq8 x y)
  1369  	// result: (XORconst [1] (SGT (SignExt8to32 x) (SignExt8to32 y)))
  1370  	for {
  1371  		x := v_0
  1372  		y := v_1
  1373  		v.reset(OpMIPSXORconst)
  1374  		v.AuxInt = int32ToAuxInt(1)
  1375  		v0 := b.NewValue0(v.Pos, OpMIPSSGT, typ.Bool)
  1376  		v1 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  1377  		v1.AddArg(x)
  1378  		v2 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  1379  		v2.AddArg(y)
  1380  		v0.AddArg2(v1, v2)
  1381  		v.AddArg(v0)
  1382  		return true
  1383  	}
  1384  }
  1385  func rewriteValueMIPS_OpLeq8U(v *Value) bool {
  1386  	v_1 := v.Args[1]
  1387  	v_0 := v.Args[0]
  1388  	b := v.Block
  1389  	typ := &b.Func.Config.Types
  1390  	// match: (Leq8U x y)
  1391  	// result: (XORconst [1] (SGTU (ZeroExt8to32 x) (ZeroExt8to32 y)))
  1392  	for {
  1393  		x := v_0
  1394  		y := v_1
  1395  		v.reset(OpMIPSXORconst)
  1396  		v.AuxInt = int32ToAuxInt(1)
  1397  		v0 := b.NewValue0(v.Pos, OpMIPSSGTU, typ.Bool)
  1398  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1399  		v1.AddArg(x)
  1400  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1401  		v2.AddArg(y)
  1402  		v0.AddArg2(v1, v2)
  1403  		v.AddArg(v0)
  1404  		return true
  1405  	}
  1406  }
  1407  func rewriteValueMIPS_OpLess16(v *Value) bool {
  1408  	v_1 := v.Args[1]
  1409  	v_0 := v.Args[0]
  1410  	b := v.Block
  1411  	typ := &b.Func.Config.Types
  1412  	// match: (Less16 x y)
  1413  	// result: (SGT (SignExt16to32 y) (SignExt16to32 x))
  1414  	for {
  1415  		x := v_0
  1416  		y := v_1
  1417  		v.reset(OpMIPSSGT)
  1418  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  1419  		v0.AddArg(y)
  1420  		v1 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  1421  		v1.AddArg(x)
  1422  		v.AddArg2(v0, v1)
  1423  		return true
  1424  	}
  1425  }
  1426  func rewriteValueMIPS_OpLess16U(v *Value) bool {
  1427  	v_1 := v.Args[1]
  1428  	v_0 := v.Args[0]
  1429  	b := v.Block
  1430  	typ := &b.Func.Config.Types
  1431  	// match: (Less16U x y)
  1432  	// result: (SGTU (ZeroExt16to32 y) (ZeroExt16to32 x))
  1433  	for {
  1434  		x := v_0
  1435  		y := v_1
  1436  		v.reset(OpMIPSSGTU)
  1437  		v0 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1438  		v0.AddArg(y)
  1439  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1440  		v1.AddArg(x)
  1441  		v.AddArg2(v0, v1)
  1442  		return true
  1443  	}
  1444  }
  1445  func rewriteValueMIPS_OpLess32(v *Value) bool {
  1446  	v_1 := v.Args[1]
  1447  	v_0 := v.Args[0]
  1448  	// match: (Less32 x y)
  1449  	// result: (SGT y x)
  1450  	for {
  1451  		x := v_0
  1452  		y := v_1
  1453  		v.reset(OpMIPSSGT)
  1454  		v.AddArg2(y, x)
  1455  		return true
  1456  	}
  1457  }
  1458  func rewriteValueMIPS_OpLess32F(v *Value) bool {
  1459  	v_1 := v.Args[1]
  1460  	v_0 := v.Args[0]
  1461  	b := v.Block
  1462  	// match: (Less32F x y)
  1463  	// result: (FPFlagTrue (CMPGTF y x))
  1464  	for {
  1465  		x := v_0
  1466  		y := v_1
  1467  		v.reset(OpMIPSFPFlagTrue)
  1468  		v0 := b.NewValue0(v.Pos, OpMIPSCMPGTF, types.TypeFlags)
  1469  		v0.AddArg2(y, x)
  1470  		v.AddArg(v0)
  1471  		return true
  1472  	}
  1473  }
  1474  func rewriteValueMIPS_OpLess32U(v *Value) bool {
  1475  	v_1 := v.Args[1]
  1476  	v_0 := v.Args[0]
  1477  	// match: (Less32U x y)
  1478  	// result: (SGTU y x)
  1479  	for {
  1480  		x := v_0
  1481  		y := v_1
  1482  		v.reset(OpMIPSSGTU)
  1483  		v.AddArg2(y, x)
  1484  		return true
  1485  	}
  1486  }
  1487  func rewriteValueMIPS_OpLess64F(v *Value) bool {
  1488  	v_1 := v.Args[1]
  1489  	v_0 := v.Args[0]
  1490  	b := v.Block
  1491  	// match: (Less64F x y)
  1492  	// result: (FPFlagTrue (CMPGTD y x))
  1493  	for {
  1494  		x := v_0
  1495  		y := v_1
  1496  		v.reset(OpMIPSFPFlagTrue)
  1497  		v0 := b.NewValue0(v.Pos, OpMIPSCMPGTD, types.TypeFlags)
  1498  		v0.AddArg2(y, x)
  1499  		v.AddArg(v0)
  1500  		return true
  1501  	}
  1502  }
  1503  func rewriteValueMIPS_OpLess8(v *Value) bool {
  1504  	v_1 := v.Args[1]
  1505  	v_0 := v.Args[0]
  1506  	b := v.Block
  1507  	typ := &b.Func.Config.Types
  1508  	// match: (Less8 x y)
  1509  	// result: (SGT (SignExt8to32 y) (SignExt8to32 x))
  1510  	for {
  1511  		x := v_0
  1512  		y := v_1
  1513  		v.reset(OpMIPSSGT)
  1514  		v0 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  1515  		v0.AddArg(y)
  1516  		v1 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  1517  		v1.AddArg(x)
  1518  		v.AddArg2(v0, v1)
  1519  		return true
  1520  	}
  1521  }
  1522  func rewriteValueMIPS_OpLess8U(v *Value) bool {
  1523  	v_1 := v.Args[1]
  1524  	v_0 := v.Args[0]
  1525  	b := v.Block
  1526  	typ := &b.Func.Config.Types
  1527  	// match: (Less8U x y)
  1528  	// result: (SGTU (ZeroExt8to32 y) (ZeroExt8to32 x))
  1529  	for {
  1530  		x := v_0
  1531  		y := v_1
  1532  		v.reset(OpMIPSSGTU)
  1533  		v0 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1534  		v0.AddArg(y)
  1535  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1536  		v1.AddArg(x)
  1537  		v.AddArg2(v0, v1)
  1538  		return true
  1539  	}
  1540  }
  1541  func rewriteValueMIPS_OpLoad(v *Value) bool {
  1542  	v_1 := v.Args[1]
  1543  	v_0 := v.Args[0]
  1544  	// match: (Load <t> ptr mem)
  1545  	// cond: t.IsBoolean()
  1546  	// result: (MOVBUload ptr mem)
  1547  	for {
  1548  		t := v.Type
  1549  		ptr := v_0
  1550  		mem := v_1
  1551  		if !(t.IsBoolean()) {
  1552  			break
  1553  		}
  1554  		v.reset(OpMIPSMOVBUload)
  1555  		v.AddArg2(ptr, mem)
  1556  		return true
  1557  	}
  1558  	// match: (Load <t> ptr mem)
  1559  	// cond: (is8BitInt(t) && t.IsSigned())
  1560  	// result: (MOVBload ptr mem)
  1561  	for {
  1562  		t := v.Type
  1563  		ptr := v_0
  1564  		mem := v_1
  1565  		if !(is8BitInt(t) && t.IsSigned()) {
  1566  			break
  1567  		}
  1568  		v.reset(OpMIPSMOVBload)
  1569  		v.AddArg2(ptr, mem)
  1570  		return true
  1571  	}
  1572  	// match: (Load <t> ptr mem)
  1573  	// cond: (is8BitInt(t) && !t.IsSigned())
  1574  	// result: (MOVBUload ptr mem)
  1575  	for {
  1576  		t := v.Type
  1577  		ptr := v_0
  1578  		mem := v_1
  1579  		if !(is8BitInt(t) && !t.IsSigned()) {
  1580  			break
  1581  		}
  1582  		v.reset(OpMIPSMOVBUload)
  1583  		v.AddArg2(ptr, mem)
  1584  		return true
  1585  	}
  1586  	// match: (Load <t> ptr mem)
  1587  	// cond: (is16BitInt(t) && t.IsSigned())
  1588  	// result: (MOVHload ptr mem)
  1589  	for {
  1590  		t := v.Type
  1591  		ptr := v_0
  1592  		mem := v_1
  1593  		if !(is16BitInt(t) && t.IsSigned()) {
  1594  			break
  1595  		}
  1596  		v.reset(OpMIPSMOVHload)
  1597  		v.AddArg2(ptr, mem)
  1598  		return true
  1599  	}
  1600  	// match: (Load <t> ptr mem)
  1601  	// cond: (is16BitInt(t) && !t.IsSigned())
  1602  	// result: (MOVHUload ptr mem)
  1603  	for {
  1604  		t := v.Type
  1605  		ptr := v_0
  1606  		mem := v_1
  1607  		if !(is16BitInt(t) && !t.IsSigned()) {
  1608  			break
  1609  		}
  1610  		v.reset(OpMIPSMOVHUload)
  1611  		v.AddArg2(ptr, mem)
  1612  		return true
  1613  	}
  1614  	// match: (Load <t> ptr mem)
  1615  	// cond: (is32BitInt(t) || isPtr(t))
  1616  	// result: (MOVWload ptr mem)
  1617  	for {
  1618  		t := v.Type
  1619  		ptr := v_0
  1620  		mem := v_1
  1621  		if !(is32BitInt(t) || isPtr(t)) {
  1622  			break
  1623  		}
  1624  		v.reset(OpMIPSMOVWload)
  1625  		v.AddArg2(ptr, mem)
  1626  		return true
  1627  	}
  1628  	// match: (Load <t> ptr mem)
  1629  	// cond: is32BitFloat(t)
  1630  	// result: (MOVFload ptr mem)
  1631  	for {
  1632  		t := v.Type
  1633  		ptr := v_0
  1634  		mem := v_1
  1635  		if !(is32BitFloat(t)) {
  1636  			break
  1637  		}
  1638  		v.reset(OpMIPSMOVFload)
  1639  		v.AddArg2(ptr, mem)
  1640  		return true
  1641  	}
  1642  	// match: (Load <t> ptr mem)
  1643  	// cond: is64BitFloat(t)
  1644  	// result: (MOVDload ptr mem)
  1645  	for {
  1646  		t := v.Type
  1647  		ptr := v_0
  1648  		mem := v_1
  1649  		if !(is64BitFloat(t)) {
  1650  			break
  1651  		}
  1652  		v.reset(OpMIPSMOVDload)
  1653  		v.AddArg2(ptr, mem)
  1654  		return true
  1655  	}
  1656  	return false
  1657  }
  1658  func rewriteValueMIPS_OpLocalAddr(v *Value) bool {
  1659  	v_1 := v.Args[1]
  1660  	v_0 := v.Args[0]
  1661  	b := v.Block
  1662  	typ := &b.Func.Config.Types
  1663  	// match: (LocalAddr <t> {sym} base mem)
  1664  	// cond: t.Elem().HasPointers()
  1665  	// result: (MOVWaddr {sym} (SPanchored base mem))
  1666  	for {
  1667  		t := v.Type
  1668  		sym := auxToSym(v.Aux)
  1669  		base := v_0
  1670  		mem := v_1
  1671  		if !(t.Elem().HasPointers()) {
  1672  			break
  1673  		}
  1674  		v.reset(OpMIPSMOVWaddr)
  1675  		v.Aux = symToAux(sym)
  1676  		v0 := b.NewValue0(v.Pos, OpSPanchored, typ.Uintptr)
  1677  		v0.AddArg2(base, mem)
  1678  		v.AddArg(v0)
  1679  		return true
  1680  	}
  1681  	// match: (LocalAddr <t> {sym} base _)
  1682  	// cond: !t.Elem().HasPointers()
  1683  	// result: (MOVWaddr {sym} base)
  1684  	for {
  1685  		t := v.Type
  1686  		sym := auxToSym(v.Aux)
  1687  		base := v_0
  1688  		if !(!t.Elem().HasPointers()) {
  1689  			break
  1690  		}
  1691  		v.reset(OpMIPSMOVWaddr)
  1692  		v.Aux = symToAux(sym)
  1693  		v.AddArg(base)
  1694  		return true
  1695  	}
  1696  	return false
  1697  }
  1698  func rewriteValueMIPS_OpLsh16x16(v *Value) bool {
  1699  	v_1 := v.Args[1]
  1700  	v_0 := v.Args[0]
  1701  	b := v.Block
  1702  	typ := &b.Func.Config.Types
  1703  	// match: (Lsh16x16 <t> x y)
  1704  	// result: (CMOVZ (SLL <t> x (ZeroExt16to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt16to32 y)))
  1705  	for {
  1706  		t := v.Type
  1707  		x := v_0
  1708  		y := v_1
  1709  		v.reset(OpMIPSCMOVZ)
  1710  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1711  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1712  		v1.AddArg(y)
  1713  		v0.AddArg2(x, v1)
  1714  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1715  		v2.AuxInt = int32ToAuxInt(0)
  1716  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1717  		v3.AuxInt = int32ToAuxInt(32)
  1718  		v3.AddArg(v1)
  1719  		v.AddArg3(v0, v2, v3)
  1720  		return true
  1721  	}
  1722  }
  1723  func rewriteValueMIPS_OpLsh16x32(v *Value) bool {
  1724  	v_1 := v.Args[1]
  1725  	v_0 := v.Args[0]
  1726  	b := v.Block
  1727  	typ := &b.Func.Config.Types
  1728  	// match: (Lsh16x32 <t> x y)
  1729  	// result: (CMOVZ (SLL <t> x y) (MOVWconst [0]) (SGTUconst [32] y))
  1730  	for {
  1731  		t := v.Type
  1732  		x := v_0
  1733  		y := v_1
  1734  		v.reset(OpMIPSCMOVZ)
  1735  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1736  		v0.AddArg2(x, y)
  1737  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1738  		v1.AuxInt = int32ToAuxInt(0)
  1739  		v2 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1740  		v2.AuxInt = int32ToAuxInt(32)
  1741  		v2.AddArg(y)
  1742  		v.AddArg3(v0, v1, v2)
  1743  		return true
  1744  	}
  1745  }
  1746  func rewriteValueMIPS_OpLsh16x64(v *Value) bool {
  1747  	v_1 := v.Args[1]
  1748  	v_0 := v.Args[0]
  1749  	// match: (Lsh16x64 x (Const64 [c]))
  1750  	// cond: uint32(c) < 16
  1751  	// result: (SLLconst x [int32(c)])
  1752  	for {
  1753  		x := v_0
  1754  		if v_1.Op != OpConst64 {
  1755  			break
  1756  		}
  1757  		c := auxIntToInt64(v_1.AuxInt)
  1758  		if !(uint32(c) < 16) {
  1759  			break
  1760  		}
  1761  		v.reset(OpMIPSSLLconst)
  1762  		v.AuxInt = int32ToAuxInt(int32(c))
  1763  		v.AddArg(x)
  1764  		return true
  1765  	}
  1766  	// match: (Lsh16x64 _ (Const64 [c]))
  1767  	// cond: uint32(c) >= 16
  1768  	// result: (MOVWconst [0])
  1769  	for {
  1770  		if v_1.Op != OpConst64 {
  1771  			break
  1772  		}
  1773  		c := auxIntToInt64(v_1.AuxInt)
  1774  		if !(uint32(c) >= 16) {
  1775  			break
  1776  		}
  1777  		v.reset(OpMIPSMOVWconst)
  1778  		v.AuxInt = int32ToAuxInt(0)
  1779  		return true
  1780  	}
  1781  	return false
  1782  }
  1783  func rewriteValueMIPS_OpLsh16x8(v *Value) bool {
  1784  	v_1 := v.Args[1]
  1785  	v_0 := v.Args[0]
  1786  	b := v.Block
  1787  	typ := &b.Func.Config.Types
  1788  	// match: (Lsh16x8 <t> x y)
  1789  	// result: (CMOVZ (SLL <t> x (ZeroExt8to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt8to32 y)))
  1790  	for {
  1791  		t := v.Type
  1792  		x := v_0
  1793  		y := v_1
  1794  		v.reset(OpMIPSCMOVZ)
  1795  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1796  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1797  		v1.AddArg(y)
  1798  		v0.AddArg2(x, v1)
  1799  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1800  		v2.AuxInt = int32ToAuxInt(0)
  1801  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1802  		v3.AuxInt = int32ToAuxInt(32)
  1803  		v3.AddArg(v1)
  1804  		v.AddArg3(v0, v2, v3)
  1805  		return true
  1806  	}
  1807  }
  1808  func rewriteValueMIPS_OpLsh32x16(v *Value) bool {
  1809  	v_1 := v.Args[1]
  1810  	v_0 := v.Args[0]
  1811  	b := v.Block
  1812  	typ := &b.Func.Config.Types
  1813  	// match: (Lsh32x16 <t> x y)
  1814  	// result: (CMOVZ (SLL <t> x (ZeroExt16to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt16to32 y)))
  1815  	for {
  1816  		t := v.Type
  1817  		x := v_0
  1818  		y := v_1
  1819  		v.reset(OpMIPSCMOVZ)
  1820  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1821  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1822  		v1.AddArg(y)
  1823  		v0.AddArg2(x, v1)
  1824  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1825  		v2.AuxInt = int32ToAuxInt(0)
  1826  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1827  		v3.AuxInt = int32ToAuxInt(32)
  1828  		v3.AddArg(v1)
  1829  		v.AddArg3(v0, v2, v3)
  1830  		return true
  1831  	}
  1832  }
  1833  func rewriteValueMIPS_OpLsh32x32(v *Value) bool {
  1834  	v_1 := v.Args[1]
  1835  	v_0 := v.Args[0]
  1836  	b := v.Block
  1837  	typ := &b.Func.Config.Types
  1838  	// match: (Lsh32x32 <t> x y)
  1839  	// result: (CMOVZ (SLL <t> x y) (MOVWconst [0]) (SGTUconst [32] y))
  1840  	for {
  1841  		t := v.Type
  1842  		x := v_0
  1843  		y := v_1
  1844  		v.reset(OpMIPSCMOVZ)
  1845  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1846  		v0.AddArg2(x, y)
  1847  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1848  		v1.AuxInt = int32ToAuxInt(0)
  1849  		v2 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1850  		v2.AuxInt = int32ToAuxInt(32)
  1851  		v2.AddArg(y)
  1852  		v.AddArg3(v0, v1, v2)
  1853  		return true
  1854  	}
  1855  }
  1856  func rewriteValueMIPS_OpLsh32x64(v *Value) bool {
  1857  	v_1 := v.Args[1]
  1858  	v_0 := v.Args[0]
  1859  	// match: (Lsh32x64 x (Const64 [c]))
  1860  	// cond: uint32(c) < 32
  1861  	// result: (SLLconst x [int32(c)])
  1862  	for {
  1863  		x := v_0
  1864  		if v_1.Op != OpConst64 {
  1865  			break
  1866  		}
  1867  		c := auxIntToInt64(v_1.AuxInt)
  1868  		if !(uint32(c) < 32) {
  1869  			break
  1870  		}
  1871  		v.reset(OpMIPSSLLconst)
  1872  		v.AuxInt = int32ToAuxInt(int32(c))
  1873  		v.AddArg(x)
  1874  		return true
  1875  	}
  1876  	// match: (Lsh32x64 _ (Const64 [c]))
  1877  	// cond: uint32(c) >= 32
  1878  	// result: (MOVWconst [0])
  1879  	for {
  1880  		if v_1.Op != OpConst64 {
  1881  			break
  1882  		}
  1883  		c := auxIntToInt64(v_1.AuxInt)
  1884  		if !(uint32(c) >= 32) {
  1885  			break
  1886  		}
  1887  		v.reset(OpMIPSMOVWconst)
  1888  		v.AuxInt = int32ToAuxInt(0)
  1889  		return true
  1890  	}
  1891  	return false
  1892  }
  1893  func rewriteValueMIPS_OpLsh32x8(v *Value) bool {
  1894  	v_1 := v.Args[1]
  1895  	v_0 := v.Args[0]
  1896  	b := v.Block
  1897  	typ := &b.Func.Config.Types
  1898  	// match: (Lsh32x8 <t> x y)
  1899  	// result: (CMOVZ (SLL <t> x (ZeroExt8to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt8to32 y)))
  1900  	for {
  1901  		t := v.Type
  1902  		x := v_0
  1903  		y := v_1
  1904  		v.reset(OpMIPSCMOVZ)
  1905  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1906  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  1907  		v1.AddArg(y)
  1908  		v0.AddArg2(x, v1)
  1909  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1910  		v2.AuxInt = int32ToAuxInt(0)
  1911  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1912  		v3.AuxInt = int32ToAuxInt(32)
  1913  		v3.AddArg(v1)
  1914  		v.AddArg3(v0, v2, v3)
  1915  		return true
  1916  	}
  1917  }
  1918  func rewriteValueMIPS_OpLsh8x16(v *Value) bool {
  1919  	v_1 := v.Args[1]
  1920  	v_0 := v.Args[0]
  1921  	b := v.Block
  1922  	typ := &b.Func.Config.Types
  1923  	// match: (Lsh8x16 <t> x y)
  1924  	// result: (CMOVZ (SLL <t> x (ZeroExt16to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt16to32 y)))
  1925  	for {
  1926  		t := v.Type
  1927  		x := v_0
  1928  		y := v_1
  1929  		v.reset(OpMIPSCMOVZ)
  1930  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1931  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  1932  		v1.AddArg(y)
  1933  		v0.AddArg2(x, v1)
  1934  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1935  		v2.AuxInt = int32ToAuxInt(0)
  1936  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1937  		v3.AuxInt = int32ToAuxInt(32)
  1938  		v3.AddArg(v1)
  1939  		v.AddArg3(v0, v2, v3)
  1940  		return true
  1941  	}
  1942  }
  1943  func rewriteValueMIPS_OpLsh8x32(v *Value) bool {
  1944  	v_1 := v.Args[1]
  1945  	v_0 := v.Args[0]
  1946  	b := v.Block
  1947  	typ := &b.Func.Config.Types
  1948  	// match: (Lsh8x32 <t> x y)
  1949  	// result: (CMOVZ (SLL <t> x y) (MOVWconst [0]) (SGTUconst [32] y))
  1950  	for {
  1951  		t := v.Type
  1952  		x := v_0
  1953  		y := v_1
  1954  		v.reset(OpMIPSCMOVZ)
  1955  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  1956  		v0.AddArg2(x, y)
  1957  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  1958  		v1.AuxInt = int32ToAuxInt(0)
  1959  		v2 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  1960  		v2.AuxInt = int32ToAuxInt(32)
  1961  		v2.AddArg(y)
  1962  		v.AddArg3(v0, v1, v2)
  1963  		return true
  1964  	}
  1965  }
  1966  func rewriteValueMIPS_OpLsh8x64(v *Value) bool {
  1967  	v_1 := v.Args[1]
  1968  	v_0 := v.Args[0]
  1969  	// match: (Lsh8x64 x (Const64 [c]))
  1970  	// cond: uint32(c) < 8
  1971  	// result: (SLLconst x [int32(c)])
  1972  	for {
  1973  		x := v_0
  1974  		if v_1.Op != OpConst64 {
  1975  			break
  1976  		}
  1977  		c := auxIntToInt64(v_1.AuxInt)
  1978  		if !(uint32(c) < 8) {
  1979  			break
  1980  		}
  1981  		v.reset(OpMIPSSLLconst)
  1982  		v.AuxInt = int32ToAuxInt(int32(c))
  1983  		v.AddArg(x)
  1984  		return true
  1985  	}
  1986  	// match: (Lsh8x64 _ (Const64 [c]))
  1987  	// cond: uint32(c) >= 8
  1988  	// result: (MOVWconst [0])
  1989  	for {
  1990  		if v_1.Op != OpConst64 {
  1991  			break
  1992  		}
  1993  		c := auxIntToInt64(v_1.AuxInt)
  1994  		if !(uint32(c) >= 8) {
  1995  			break
  1996  		}
  1997  		v.reset(OpMIPSMOVWconst)
  1998  		v.AuxInt = int32ToAuxInt(0)
  1999  		return true
  2000  	}
  2001  	return false
  2002  }
  2003  func rewriteValueMIPS_OpLsh8x8(v *Value) bool {
  2004  	v_1 := v.Args[1]
  2005  	v_0 := v.Args[0]
  2006  	b := v.Block
  2007  	typ := &b.Func.Config.Types
  2008  	// match: (Lsh8x8 <t> x y)
  2009  	// result: (CMOVZ (SLL <t> x (ZeroExt8to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt8to32 y)))
  2010  	for {
  2011  		t := v.Type
  2012  		x := v_0
  2013  		y := v_1
  2014  		v.reset(OpMIPSCMOVZ)
  2015  		v0 := b.NewValue0(v.Pos, OpMIPSSLL, t)
  2016  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  2017  		v1.AddArg(y)
  2018  		v0.AddArg2(x, v1)
  2019  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  2020  		v2.AuxInt = int32ToAuxInt(0)
  2021  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  2022  		v3.AuxInt = int32ToAuxInt(32)
  2023  		v3.AddArg(v1)
  2024  		v.AddArg3(v0, v2, v3)
  2025  		return true
  2026  	}
  2027  }
  2028  func rewriteValueMIPS_OpMIPSADD(v *Value) bool {
  2029  	v_1 := v.Args[1]
  2030  	v_0 := v.Args[0]
  2031  	// match: (ADD x (MOVWconst <t> [c]))
  2032  	// cond: !t.IsPtr()
  2033  	// result: (ADDconst [c] x)
  2034  	for {
  2035  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  2036  			x := v_0
  2037  			if v_1.Op != OpMIPSMOVWconst {
  2038  				continue
  2039  			}
  2040  			t := v_1.Type
  2041  			c := auxIntToInt32(v_1.AuxInt)
  2042  			if !(!t.IsPtr()) {
  2043  				continue
  2044  			}
  2045  			v.reset(OpMIPSADDconst)
  2046  			v.AuxInt = int32ToAuxInt(c)
  2047  			v.AddArg(x)
  2048  			return true
  2049  		}
  2050  		break
  2051  	}
  2052  	// match: (ADD x (NEG y))
  2053  	// result: (SUB x y)
  2054  	for {
  2055  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  2056  			x := v_0
  2057  			if v_1.Op != OpMIPSNEG {
  2058  				continue
  2059  			}
  2060  			y := v_1.Args[0]
  2061  			v.reset(OpMIPSSUB)
  2062  			v.AddArg2(x, y)
  2063  			return true
  2064  		}
  2065  		break
  2066  	}
  2067  	return false
  2068  }
  2069  func rewriteValueMIPS_OpMIPSADDconst(v *Value) bool {
  2070  	v_0 := v.Args[0]
  2071  	// match: (ADDconst [off1] (MOVWaddr [off2] {sym} ptr))
  2072  	// result: (MOVWaddr [off1+off2] {sym} ptr)
  2073  	for {
  2074  		off1 := auxIntToInt32(v.AuxInt)
  2075  		if v_0.Op != OpMIPSMOVWaddr {
  2076  			break
  2077  		}
  2078  		off2 := auxIntToInt32(v_0.AuxInt)
  2079  		sym := auxToSym(v_0.Aux)
  2080  		ptr := v_0.Args[0]
  2081  		v.reset(OpMIPSMOVWaddr)
  2082  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2083  		v.Aux = symToAux(sym)
  2084  		v.AddArg(ptr)
  2085  		return true
  2086  	}
  2087  	// match: (ADDconst [0] x)
  2088  	// result: x
  2089  	for {
  2090  		if auxIntToInt32(v.AuxInt) != 0 {
  2091  			break
  2092  		}
  2093  		x := v_0
  2094  		v.copyOf(x)
  2095  		return true
  2096  	}
  2097  	// match: (ADDconst [c] (MOVWconst [d]))
  2098  	// result: (MOVWconst [int32(c+d)])
  2099  	for {
  2100  		c := auxIntToInt32(v.AuxInt)
  2101  		if v_0.Op != OpMIPSMOVWconst {
  2102  			break
  2103  		}
  2104  		d := auxIntToInt32(v_0.AuxInt)
  2105  		v.reset(OpMIPSMOVWconst)
  2106  		v.AuxInt = int32ToAuxInt(int32(c + d))
  2107  		return true
  2108  	}
  2109  	// match: (ADDconst [c] (ADDconst [d] x))
  2110  	// result: (ADDconst [c+d] x)
  2111  	for {
  2112  		c := auxIntToInt32(v.AuxInt)
  2113  		if v_0.Op != OpMIPSADDconst {
  2114  			break
  2115  		}
  2116  		d := auxIntToInt32(v_0.AuxInt)
  2117  		x := v_0.Args[0]
  2118  		v.reset(OpMIPSADDconst)
  2119  		v.AuxInt = int32ToAuxInt(c + d)
  2120  		v.AddArg(x)
  2121  		return true
  2122  	}
  2123  	// match: (ADDconst [c] (SUBconst [d] x))
  2124  	// result: (ADDconst [c-d] x)
  2125  	for {
  2126  		c := auxIntToInt32(v.AuxInt)
  2127  		if v_0.Op != OpMIPSSUBconst {
  2128  			break
  2129  		}
  2130  		d := auxIntToInt32(v_0.AuxInt)
  2131  		x := v_0.Args[0]
  2132  		v.reset(OpMIPSADDconst)
  2133  		v.AuxInt = int32ToAuxInt(c - d)
  2134  		v.AddArg(x)
  2135  		return true
  2136  	}
  2137  	return false
  2138  }
  2139  func rewriteValueMIPS_OpMIPSAND(v *Value) bool {
  2140  	v_1 := v.Args[1]
  2141  	v_0 := v.Args[0]
  2142  	b := v.Block
  2143  	// match: (AND x (MOVWconst [c]))
  2144  	// result: (ANDconst [c] x)
  2145  	for {
  2146  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  2147  			x := v_0
  2148  			if v_1.Op != OpMIPSMOVWconst {
  2149  				continue
  2150  			}
  2151  			c := auxIntToInt32(v_1.AuxInt)
  2152  			v.reset(OpMIPSANDconst)
  2153  			v.AuxInt = int32ToAuxInt(c)
  2154  			v.AddArg(x)
  2155  			return true
  2156  		}
  2157  		break
  2158  	}
  2159  	// match: (AND x x)
  2160  	// result: x
  2161  	for {
  2162  		x := v_0
  2163  		if x != v_1 {
  2164  			break
  2165  		}
  2166  		v.copyOf(x)
  2167  		return true
  2168  	}
  2169  	// match: (AND (SGTUconst [1] x) (SGTUconst [1] y))
  2170  	// result: (SGTUconst [1] (OR <x.Type> x y))
  2171  	for {
  2172  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  2173  			if v_0.Op != OpMIPSSGTUconst || auxIntToInt32(v_0.AuxInt) != 1 {
  2174  				continue
  2175  			}
  2176  			x := v_0.Args[0]
  2177  			if v_1.Op != OpMIPSSGTUconst || auxIntToInt32(v_1.AuxInt) != 1 {
  2178  				continue
  2179  			}
  2180  			y := v_1.Args[0]
  2181  			v.reset(OpMIPSSGTUconst)
  2182  			v.AuxInt = int32ToAuxInt(1)
  2183  			v0 := b.NewValue0(v.Pos, OpMIPSOR, x.Type)
  2184  			v0.AddArg2(x, y)
  2185  			v.AddArg(v0)
  2186  			return true
  2187  		}
  2188  		break
  2189  	}
  2190  	return false
  2191  }
  2192  func rewriteValueMIPS_OpMIPSANDconst(v *Value) bool {
  2193  	v_0 := v.Args[0]
  2194  	// match: (ANDconst [0] _)
  2195  	// result: (MOVWconst [0])
  2196  	for {
  2197  		if auxIntToInt32(v.AuxInt) != 0 {
  2198  			break
  2199  		}
  2200  		v.reset(OpMIPSMOVWconst)
  2201  		v.AuxInt = int32ToAuxInt(0)
  2202  		return true
  2203  	}
  2204  	// match: (ANDconst [-1] x)
  2205  	// result: x
  2206  	for {
  2207  		if auxIntToInt32(v.AuxInt) != -1 {
  2208  			break
  2209  		}
  2210  		x := v_0
  2211  		v.copyOf(x)
  2212  		return true
  2213  	}
  2214  	// match: (ANDconst [c] (MOVWconst [d]))
  2215  	// result: (MOVWconst [c&d])
  2216  	for {
  2217  		c := auxIntToInt32(v.AuxInt)
  2218  		if v_0.Op != OpMIPSMOVWconst {
  2219  			break
  2220  		}
  2221  		d := auxIntToInt32(v_0.AuxInt)
  2222  		v.reset(OpMIPSMOVWconst)
  2223  		v.AuxInt = int32ToAuxInt(c & d)
  2224  		return true
  2225  	}
  2226  	// match: (ANDconst [c] (ANDconst [d] x))
  2227  	// result: (ANDconst [c&d] x)
  2228  	for {
  2229  		c := auxIntToInt32(v.AuxInt)
  2230  		if v_0.Op != OpMIPSANDconst {
  2231  			break
  2232  		}
  2233  		d := auxIntToInt32(v_0.AuxInt)
  2234  		x := v_0.Args[0]
  2235  		v.reset(OpMIPSANDconst)
  2236  		v.AuxInt = int32ToAuxInt(c & d)
  2237  		v.AddArg(x)
  2238  		return true
  2239  	}
  2240  	return false
  2241  }
  2242  func rewriteValueMIPS_OpMIPSCMOVZ(v *Value) bool {
  2243  	v_2 := v.Args[2]
  2244  	v_1 := v.Args[1]
  2245  	v_0 := v.Args[0]
  2246  	// match: (CMOVZ _ f (MOVWconst [0]))
  2247  	// result: f
  2248  	for {
  2249  		f := v_1
  2250  		if v_2.Op != OpMIPSMOVWconst || auxIntToInt32(v_2.AuxInt) != 0 {
  2251  			break
  2252  		}
  2253  		v.copyOf(f)
  2254  		return true
  2255  	}
  2256  	// match: (CMOVZ a _ (MOVWconst [c]))
  2257  	// cond: c!=0
  2258  	// result: a
  2259  	for {
  2260  		a := v_0
  2261  		if v_2.Op != OpMIPSMOVWconst {
  2262  			break
  2263  		}
  2264  		c := auxIntToInt32(v_2.AuxInt)
  2265  		if !(c != 0) {
  2266  			break
  2267  		}
  2268  		v.copyOf(a)
  2269  		return true
  2270  	}
  2271  	// match: (CMOVZ a (MOVWconst [0]) c)
  2272  	// result: (CMOVZzero a c)
  2273  	for {
  2274  		a := v_0
  2275  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  2276  			break
  2277  		}
  2278  		c := v_2
  2279  		v.reset(OpMIPSCMOVZzero)
  2280  		v.AddArg2(a, c)
  2281  		return true
  2282  	}
  2283  	return false
  2284  }
  2285  func rewriteValueMIPS_OpMIPSCMOVZzero(v *Value) bool {
  2286  	v_1 := v.Args[1]
  2287  	v_0 := v.Args[0]
  2288  	// match: (CMOVZzero _ (MOVWconst [0]))
  2289  	// result: (MOVWconst [0])
  2290  	for {
  2291  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  2292  			break
  2293  		}
  2294  		v.reset(OpMIPSMOVWconst)
  2295  		v.AuxInt = int32ToAuxInt(0)
  2296  		return true
  2297  	}
  2298  	// match: (CMOVZzero a (MOVWconst [c]))
  2299  	// cond: c!=0
  2300  	// result: a
  2301  	for {
  2302  		a := v_0
  2303  		if v_1.Op != OpMIPSMOVWconst {
  2304  			break
  2305  		}
  2306  		c := auxIntToInt32(v_1.AuxInt)
  2307  		if !(c != 0) {
  2308  			break
  2309  		}
  2310  		v.copyOf(a)
  2311  		return true
  2312  	}
  2313  	return false
  2314  }
  2315  func rewriteValueMIPS_OpMIPSLoweredAtomicAdd(v *Value) bool {
  2316  	v_2 := v.Args[2]
  2317  	v_1 := v.Args[1]
  2318  	v_0 := v.Args[0]
  2319  	// match: (LoweredAtomicAdd ptr (MOVWconst [c]) mem)
  2320  	// cond: is16Bit(int64(c))
  2321  	// result: (LoweredAtomicAddconst [c] ptr mem)
  2322  	for {
  2323  		ptr := v_0
  2324  		if v_1.Op != OpMIPSMOVWconst {
  2325  			break
  2326  		}
  2327  		c := auxIntToInt32(v_1.AuxInt)
  2328  		mem := v_2
  2329  		if !(is16Bit(int64(c))) {
  2330  			break
  2331  		}
  2332  		v.reset(OpMIPSLoweredAtomicAddconst)
  2333  		v.AuxInt = int32ToAuxInt(c)
  2334  		v.AddArg2(ptr, mem)
  2335  		return true
  2336  	}
  2337  	return false
  2338  }
  2339  func rewriteValueMIPS_OpMIPSLoweredAtomicStore32(v *Value) bool {
  2340  	v_2 := v.Args[2]
  2341  	v_1 := v.Args[1]
  2342  	v_0 := v.Args[0]
  2343  	// match: (LoweredAtomicStore32 ptr (MOVWconst [0]) mem)
  2344  	// result: (LoweredAtomicStorezero ptr mem)
  2345  	for {
  2346  		ptr := v_0
  2347  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  2348  			break
  2349  		}
  2350  		mem := v_2
  2351  		v.reset(OpMIPSLoweredAtomicStorezero)
  2352  		v.AddArg2(ptr, mem)
  2353  		return true
  2354  	}
  2355  	return false
  2356  }
  2357  func rewriteValueMIPS_OpMIPSMOVBUload(v *Value) bool {
  2358  	v_1 := v.Args[1]
  2359  	v_0 := v.Args[0]
  2360  	// match: (MOVBUload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  2361  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2362  	// result: (MOVBUload [off1+off2] {sym} ptr mem)
  2363  	for {
  2364  		off1 := auxIntToInt32(v.AuxInt)
  2365  		sym := auxToSym(v.Aux)
  2366  		x := v_0
  2367  		if x.Op != OpMIPSADDconst {
  2368  			break
  2369  		}
  2370  		off2 := auxIntToInt32(x.AuxInt)
  2371  		ptr := x.Args[0]
  2372  		mem := v_1
  2373  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  2374  			break
  2375  		}
  2376  		v.reset(OpMIPSMOVBUload)
  2377  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2378  		v.Aux = symToAux(sym)
  2379  		v.AddArg2(ptr, mem)
  2380  		return true
  2381  	}
  2382  	// match: (MOVBUload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  2383  	// cond: canMergeSym(sym1,sym2)
  2384  	// result: (MOVBUload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  2385  	for {
  2386  		off1 := auxIntToInt32(v.AuxInt)
  2387  		sym1 := auxToSym(v.Aux)
  2388  		if v_0.Op != OpMIPSMOVWaddr {
  2389  			break
  2390  		}
  2391  		off2 := auxIntToInt32(v_0.AuxInt)
  2392  		sym2 := auxToSym(v_0.Aux)
  2393  		ptr := v_0.Args[0]
  2394  		mem := v_1
  2395  		if !(canMergeSym(sym1, sym2)) {
  2396  			break
  2397  		}
  2398  		v.reset(OpMIPSMOVBUload)
  2399  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2400  		v.Aux = symToAux(mergeSym(sym1, sym2))
  2401  		v.AddArg2(ptr, mem)
  2402  		return true
  2403  	}
  2404  	// match: (MOVBUload [off] {sym} ptr (MOVBstore [off2] {sym2} ptr2 x _))
  2405  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  2406  	// result: (MOVBUreg x)
  2407  	for {
  2408  		off := auxIntToInt32(v.AuxInt)
  2409  		sym := auxToSym(v.Aux)
  2410  		ptr := v_0
  2411  		if v_1.Op != OpMIPSMOVBstore {
  2412  			break
  2413  		}
  2414  		off2 := auxIntToInt32(v_1.AuxInt)
  2415  		sym2 := auxToSym(v_1.Aux)
  2416  		x := v_1.Args[1]
  2417  		ptr2 := v_1.Args[0]
  2418  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  2419  			break
  2420  		}
  2421  		v.reset(OpMIPSMOVBUreg)
  2422  		v.AddArg(x)
  2423  		return true
  2424  	}
  2425  	return false
  2426  }
  2427  func rewriteValueMIPS_OpMIPSMOVBUreg(v *Value) bool {
  2428  	v_0 := v.Args[0]
  2429  	b := v.Block
  2430  	// match: (MOVBUreg x:(MOVBUload _ _))
  2431  	// result: (MOVWreg x)
  2432  	for {
  2433  		x := v_0
  2434  		if x.Op != OpMIPSMOVBUload {
  2435  			break
  2436  		}
  2437  		v.reset(OpMIPSMOVWreg)
  2438  		v.AddArg(x)
  2439  		return true
  2440  	}
  2441  	// match: (MOVBUreg x:(MOVBUreg _))
  2442  	// result: (MOVWreg x)
  2443  	for {
  2444  		x := v_0
  2445  		if x.Op != OpMIPSMOVBUreg {
  2446  			break
  2447  		}
  2448  		v.reset(OpMIPSMOVWreg)
  2449  		v.AddArg(x)
  2450  		return true
  2451  	}
  2452  	// match: (MOVBUreg <t> x:(MOVBload [off] {sym} ptr mem))
  2453  	// cond: x.Uses == 1 && clobber(x)
  2454  	// result: @x.Block (MOVBUload <t> [off] {sym} ptr mem)
  2455  	for {
  2456  		t := v.Type
  2457  		x := v_0
  2458  		if x.Op != OpMIPSMOVBload {
  2459  			break
  2460  		}
  2461  		off := auxIntToInt32(x.AuxInt)
  2462  		sym := auxToSym(x.Aux)
  2463  		mem := x.Args[1]
  2464  		ptr := x.Args[0]
  2465  		if !(x.Uses == 1 && clobber(x)) {
  2466  			break
  2467  		}
  2468  		b = x.Block
  2469  		v0 := b.NewValue0(x.Pos, OpMIPSMOVBUload, t)
  2470  		v.copyOf(v0)
  2471  		v0.AuxInt = int32ToAuxInt(off)
  2472  		v0.Aux = symToAux(sym)
  2473  		v0.AddArg2(ptr, mem)
  2474  		return true
  2475  	}
  2476  	// match: (MOVBUreg (ANDconst [c] x))
  2477  	// result: (ANDconst [c&0xff] x)
  2478  	for {
  2479  		if v_0.Op != OpMIPSANDconst {
  2480  			break
  2481  		}
  2482  		c := auxIntToInt32(v_0.AuxInt)
  2483  		x := v_0.Args[0]
  2484  		v.reset(OpMIPSANDconst)
  2485  		v.AuxInt = int32ToAuxInt(c & 0xff)
  2486  		v.AddArg(x)
  2487  		return true
  2488  	}
  2489  	// match: (MOVBUreg (MOVWconst [c]))
  2490  	// result: (MOVWconst [int32(uint8(c))])
  2491  	for {
  2492  		if v_0.Op != OpMIPSMOVWconst {
  2493  			break
  2494  		}
  2495  		c := auxIntToInt32(v_0.AuxInt)
  2496  		v.reset(OpMIPSMOVWconst)
  2497  		v.AuxInt = int32ToAuxInt(int32(uint8(c)))
  2498  		return true
  2499  	}
  2500  	return false
  2501  }
  2502  func rewriteValueMIPS_OpMIPSMOVBload(v *Value) bool {
  2503  	v_1 := v.Args[1]
  2504  	v_0 := v.Args[0]
  2505  	// match: (MOVBload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  2506  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2507  	// result: (MOVBload [off1+off2] {sym} ptr mem)
  2508  	for {
  2509  		off1 := auxIntToInt32(v.AuxInt)
  2510  		sym := auxToSym(v.Aux)
  2511  		x := v_0
  2512  		if x.Op != OpMIPSADDconst {
  2513  			break
  2514  		}
  2515  		off2 := auxIntToInt32(x.AuxInt)
  2516  		ptr := x.Args[0]
  2517  		mem := v_1
  2518  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  2519  			break
  2520  		}
  2521  		v.reset(OpMIPSMOVBload)
  2522  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2523  		v.Aux = symToAux(sym)
  2524  		v.AddArg2(ptr, mem)
  2525  		return true
  2526  	}
  2527  	// match: (MOVBload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  2528  	// cond: canMergeSym(sym1,sym2)
  2529  	// result: (MOVBload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  2530  	for {
  2531  		off1 := auxIntToInt32(v.AuxInt)
  2532  		sym1 := auxToSym(v.Aux)
  2533  		if v_0.Op != OpMIPSMOVWaddr {
  2534  			break
  2535  		}
  2536  		off2 := auxIntToInt32(v_0.AuxInt)
  2537  		sym2 := auxToSym(v_0.Aux)
  2538  		ptr := v_0.Args[0]
  2539  		mem := v_1
  2540  		if !(canMergeSym(sym1, sym2)) {
  2541  			break
  2542  		}
  2543  		v.reset(OpMIPSMOVBload)
  2544  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2545  		v.Aux = symToAux(mergeSym(sym1, sym2))
  2546  		v.AddArg2(ptr, mem)
  2547  		return true
  2548  	}
  2549  	// match: (MOVBload [off] {sym} ptr (MOVBstore [off2] {sym2} ptr2 x _))
  2550  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  2551  	// result: (MOVBreg x)
  2552  	for {
  2553  		off := auxIntToInt32(v.AuxInt)
  2554  		sym := auxToSym(v.Aux)
  2555  		ptr := v_0
  2556  		if v_1.Op != OpMIPSMOVBstore {
  2557  			break
  2558  		}
  2559  		off2 := auxIntToInt32(v_1.AuxInt)
  2560  		sym2 := auxToSym(v_1.Aux)
  2561  		x := v_1.Args[1]
  2562  		ptr2 := v_1.Args[0]
  2563  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  2564  			break
  2565  		}
  2566  		v.reset(OpMIPSMOVBreg)
  2567  		v.AddArg(x)
  2568  		return true
  2569  	}
  2570  	return false
  2571  }
  2572  func rewriteValueMIPS_OpMIPSMOVBreg(v *Value) bool {
  2573  	v_0 := v.Args[0]
  2574  	b := v.Block
  2575  	// match: (MOVBreg x:(MOVBload _ _))
  2576  	// result: (MOVWreg x)
  2577  	for {
  2578  		x := v_0
  2579  		if x.Op != OpMIPSMOVBload {
  2580  			break
  2581  		}
  2582  		v.reset(OpMIPSMOVWreg)
  2583  		v.AddArg(x)
  2584  		return true
  2585  	}
  2586  	// match: (MOVBreg x:(MOVBreg _))
  2587  	// result: (MOVWreg x)
  2588  	for {
  2589  		x := v_0
  2590  		if x.Op != OpMIPSMOVBreg {
  2591  			break
  2592  		}
  2593  		v.reset(OpMIPSMOVWreg)
  2594  		v.AddArg(x)
  2595  		return true
  2596  	}
  2597  	// match: (MOVBreg <t> x:(MOVBUload [off] {sym} ptr mem))
  2598  	// cond: x.Uses == 1 && clobber(x)
  2599  	// result: @x.Block (MOVBload <t> [off] {sym} ptr mem)
  2600  	for {
  2601  		t := v.Type
  2602  		x := v_0
  2603  		if x.Op != OpMIPSMOVBUload {
  2604  			break
  2605  		}
  2606  		off := auxIntToInt32(x.AuxInt)
  2607  		sym := auxToSym(x.Aux)
  2608  		mem := x.Args[1]
  2609  		ptr := x.Args[0]
  2610  		if !(x.Uses == 1 && clobber(x)) {
  2611  			break
  2612  		}
  2613  		b = x.Block
  2614  		v0 := b.NewValue0(x.Pos, OpMIPSMOVBload, t)
  2615  		v.copyOf(v0)
  2616  		v0.AuxInt = int32ToAuxInt(off)
  2617  		v0.Aux = symToAux(sym)
  2618  		v0.AddArg2(ptr, mem)
  2619  		return true
  2620  	}
  2621  	// match: (MOVBreg (ANDconst [c] x))
  2622  	// cond: c & 0x80 == 0
  2623  	// result: (ANDconst [c&0x7f] x)
  2624  	for {
  2625  		if v_0.Op != OpMIPSANDconst {
  2626  			break
  2627  		}
  2628  		c := auxIntToInt32(v_0.AuxInt)
  2629  		x := v_0.Args[0]
  2630  		if !(c&0x80 == 0) {
  2631  			break
  2632  		}
  2633  		v.reset(OpMIPSANDconst)
  2634  		v.AuxInt = int32ToAuxInt(c & 0x7f)
  2635  		v.AddArg(x)
  2636  		return true
  2637  	}
  2638  	// match: (MOVBreg (MOVWconst [c]))
  2639  	// result: (MOVWconst [int32(int8(c))])
  2640  	for {
  2641  		if v_0.Op != OpMIPSMOVWconst {
  2642  			break
  2643  		}
  2644  		c := auxIntToInt32(v_0.AuxInt)
  2645  		v.reset(OpMIPSMOVWconst)
  2646  		v.AuxInt = int32ToAuxInt(int32(int8(c)))
  2647  		return true
  2648  	}
  2649  	return false
  2650  }
  2651  func rewriteValueMIPS_OpMIPSMOVBstore(v *Value) bool {
  2652  	v_2 := v.Args[2]
  2653  	v_1 := v.Args[1]
  2654  	v_0 := v.Args[0]
  2655  	// match: (MOVBstore [off1] {sym} x:(ADDconst [off2] ptr) val mem)
  2656  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2657  	// result: (MOVBstore [off1+off2] {sym} ptr val mem)
  2658  	for {
  2659  		off1 := auxIntToInt32(v.AuxInt)
  2660  		sym := auxToSym(v.Aux)
  2661  		x := v_0
  2662  		if x.Op != OpMIPSADDconst {
  2663  			break
  2664  		}
  2665  		off2 := auxIntToInt32(x.AuxInt)
  2666  		ptr := x.Args[0]
  2667  		val := v_1
  2668  		mem := v_2
  2669  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  2670  			break
  2671  		}
  2672  		v.reset(OpMIPSMOVBstore)
  2673  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2674  		v.Aux = symToAux(sym)
  2675  		v.AddArg3(ptr, val, mem)
  2676  		return true
  2677  	}
  2678  	// match: (MOVBstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem)
  2679  	// cond: canMergeSym(sym1,sym2)
  2680  	// result: (MOVBstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem)
  2681  	for {
  2682  		off1 := auxIntToInt32(v.AuxInt)
  2683  		sym1 := auxToSym(v.Aux)
  2684  		if v_0.Op != OpMIPSMOVWaddr {
  2685  			break
  2686  		}
  2687  		off2 := auxIntToInt32(v_0.AuxInt)
  2688  		sym2 := auxToSym(v_0.Aux)
  2689  		ptr := v_0.Args[0]
  2690  		val := v_1
  2691  		mem := v_2
  2692  		if !(canMergeSym(sym1, sym2)) {
  2693  			break
  2694  		}
  2695  		v.reset(OpMIPSMOVBstore)
  2696  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2697  		v.Aux = symToAux(mergeSym(sym1, sym2))
  2698  		v.AddArg3(ptr, val, mem)
  2699  		return true
  2700  	}
  2701  	// match: (MOVBstore [off] {sym} ptr (MOVWconst [0]) mem)
  2702  	// result: (MOVBstorezero [off] {sym} ptr mem)
  2703  	for {
  2704  		off := auxIntToInt32(v.AuxInt)
  2705  		sym := auxToSym(v.Aux)
  2706  		ptr := v_0
  2707  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  2708  			break
  2709  		}
  2710  		mem := v_2
  2711  		v.reset(OpMIPSMOVBstorezero)
  2712  		v.AuxInt = int32ToAuxInt(off)
  2713  		v.Aux = symToAux(sym)
  2714  		v.AddArg2(ptr, mem)
  2715  		return true
  2716  	}
  2717  	// match: (MOVBstore [off] {sym} ptr (MOVBreg x) mem)
  2718  	// result: (MOVBstore [off] {sym} ptr x mem)
  2719  	for {
  2720  		off := auxIntToInt32(v.AuxInt)
  2721  		sym := auxToSym(v.Aux)
  2722  		ptr := v_0
  2723  		if v_1.Op != OpMIPSMOVBreg {
  2724  			break
  2725  		}
  2726  		x := v_1.Args[0]
  2727  		mem := v_2
  2728  		v.reset(OpMIPSMOVBstore)
  2729  		v.AuxInt = int32ToAuxInt(off)
  2730  		v.Aux = symToAux(sym)
  2731  		v.AddArg3(ptr, x, mem)
  2732  		return true
  2733  	}
  2734  	// match: (MOVBstore [off] {sym} ptr (MOVBUreg x) mem)
  2735  	// result: (MOVBstore [off] {sym} ptr x mem)
  2736  	for {
  2737  		off := auxIntToInt32(v.AuxInt)
  2738  		sym := auxToSym(v.Aux)
  2739  		ptr := v_0
  2740  		if v_1.Op != OpMIPSMOVBUreg {
  2741  			break
  2742  		}
  2743  		x := v_1.Args[0]
  2744  		mem := v_2
  2745  		v.reset(OpMIPSMOVBstore)
  2746  		v.AuxInt = int32ToAuxInt(off)
  2747  		v.Aux = symToAux(sym)
  2748  		v.AddArg3(ptr, x, mem)
  2749  		return true
  2750  	}
  2751  	// match: (MOVBstore [off] {sym} ptr (MOVHreg x) mem)
  2752  	// result: (MOVBstore [off] {sym} ptr x mem)
  2753  	for {
  2754  		off := auxIntToInt32(v.AuxInt)
  2755  		sym := auxToSym(v.Aux)
  2756  		ptr := v_0
  2757  		if v_1.Op != OpMIPSMOVHreg {
  2758  			break
  2759  		}
  2760  		x := v_1.Args[0]
  2761  		mem := v_2
  2762  		v.reset(OpMIPSMOVBstore)
  2763  		v.AuxInt = int32ToAuxInt(off)
  2764  		v.Aux = symToAux(sym)
  2765  		v.AddArg3(ptr, x, mem)
  2766  		return true
  2767  	}
  2768  	// match: (MOVBstore [off] {sym} ptr (MOVHUreg x) mem)
  2769  	// result: (MOVBstore [off] {sym} ptr x mem)
  2770  	for {
  2771  		off := auxIntToInt32(v.AuxInt)
  2772  		sym := auxToSym(v.Aux)
  2773  		ptr := v_0
  2774  		if v_1.Op != OpMIPSMOVHUreg {
  2775  			break
  2776  		}
  2777  		x := v_1.Args[0]
  2778  		mem := v_2
  2779  		v.reset(OpMIPSMOVBstore)
  2780  		v.AuxInt = int32ToAuxInt(off)
  2781  		v.Aux = symToAux(sym)
  2782  		v.AddArg3(ptr, x, mem)
  2783  		return true
  2784  	}
  2785  	// match: (MOVBstore [off] {sym} ptr (MOVWreg x) mem)
  2786  	// result: (MOVBstore [off] {sym} ptr x mem)
  2787  	for {
  2788  		off := auxIntToInt32(v.AuxInt)
  2789  		sym := auxToSym(v.Aux)
  2790  		ptr := v_0
  2791  		if v_1.Op != OpMIPSMOVWreg {
  2792  			break
  2793  		}
  2794  		x := v_1.Args[0]
  2795  		mem := v_2
  2796  		v.reset(OpMIPSMOVBstore)
  2797  		v.AuxInt = int32ToAuxInt(off)
  2798  		v.Aux = symToAux(sym)
  2799  		v.AddArg3(ptr, x, mem)
  2800  		return true
  2801  	}
  2802  	return false
  2803  }
  2804  func rewriteValueMIPS_OpMIPSMOVBstorezero(v *Value) bool {
  2805  	v_1 := v.Args[1]
  2806  	v_0 := v.Args[0]
  2807  	// match: (MOVBstorezero [off1] {sym} x:(ADDconst [off2] ptr) mem)
  2808  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2809  	// result: (MOVBstorezero [off1+off2] {sym} ptr mem)
  2810  	for {
  2811  		off1 := auxIntToInt32(v.AuxInt)
  2812  		sym := auxToSym(v.Aux)
  2813  		x := v_0
  2814  		if x.Op != OpMIPSADDconst {
  2815  			break
  2816  		}
  2817  		off2 := auxIntToInt32(x.AuxInt)
  2818  		ptr := x.Args[0]
  2819  		mem := v_1
  2820  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  2821  			break
  2822  		}
  2823  		v.reset(OpMIPSMOVBstorezero)
  2824  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2825  		v.Aux = symToAux(sym)
  2826  		v.AddArg2(ptr, mem)
  2827  		return true
  2828  	}
  2829  	// match: (MOVBstorezero [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  2830  	// cond: canMergeSym(sym1,sym2)
  2831  	// result: (MOVBstorezero [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  2832  	for {
  2833  		off1 := auxIntToInt32(v.AuxInt)
  2834  		sym1 := auxToSym(v.Aux)
  2835  		if v_0.Op != OpMIPSMOVWaddr {
  2836  			break
  2837  		}
  2838  		off2 := auxIntToInt32(v_0.AuxInt)
  2839  		sym2 := auxToSym(v_0.Aux)
  2840  		ptr := v_0.Args[0]
  2841  		mem := v_1
  2842  		if !(canMergeSym(sym1, sym2)) {
  2843  			break
  2844  		}
  2845  		v.reset(OpMIPSMOVBstorezero)
  2846  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2847  		v.Aux = symToAux(mergeSym(sym1, sym2))
  2848  		v.AddArg2(ptr, mem)
  2849  		return true
  2850  	}
  2851  	return false
  2852  }
  2853  func rewriteValueMIPS_OpMIPSMOVDload(v *Value) bool {
  2854  	v_1 := v.Args[1]
  2855  	v_0 := v.Args[0]
  2856  	// match: (MOVDload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  2857  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2858  	// result: (MOVDload [off1+off2] {sym} ptr mem)
  2859  	for {
  2860  		off1 := auxIntToInt32(v.AuxInt)
  2861  		sym := auxToSym(v.Aux)
  2862  		x := v_0
  2863  		if x.Op != OpMIPSADDconst {
  2864  			break
  2865  		}
  2866  		off2 := auxIntToInt32(x.AuxInt)
  2867  		ptr := x.Args[0]
  2868  		mem := v_1
  2869  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  2870  			break
  2871  		}
  2872  		v.reset(OpMIPSMOVDload)
  2873  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2874  		v.Aux = symToAux(sym)
  2875  		v.AddArg2(ptr, mem)
  2876  		return true
  2877  	}
  2878  	// match: (MOVDload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  2879  	// cond: canMergeSym(sym1,sym2)
  2880  	// result: (MOVDload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  2881  	for {
  2882  		off1 := auxIntToInt32(v.AuxInt)
  2883  		sym1 := auxToSym(v.Aux)
  2884  		if v_0.Op != OpMIPSMOVWaddr {
  2885  			break
  2886  		}
  2887  		off2 := auxIntToInt32(v_0.AuxInt)
  2888  		sym2 := auxToSym(v_0.Aux)
  2889  		ptr := v_0.Args[0]
  2890  		mem := v_1
  2891  		if !(canMergeSym(sym1, sym2)) {
  2892  			break
  2893  		}
  2894  		v.reset(OpMIPSMOVDload)
  2895  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2896  		v.Aux = symToAux(mergeSym(sym1, sym2))
  2897  		v.AddArg2(ptr, mem)
  2898  		return true
  2899  	}
  2900  	// match: (MOVDload [off] {sym} ptr (MOVDstore [off2] {sym2} ptr2 x _))
  2901  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  2902  	// result: x
  2903  	for {
  2904  		off := auxIntToInt32(v.AuxInt)
  2905  		sym := auxToSym(v.Aux)
  2906  		ptr := v_0
  2907  		if v_1.Op != OpMIPSMOVDstore {
  2908  			break
  2909  		}
  2910  		off2 := auxIntToInt32(v_1.AuxInt)
  2911  		sym2 := auxToSym(v_1.Aux)
  2912  		x := v_1.Args[1]
  2913  		ptr2 := v_1.Args[0]
  2914  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  2915  			break
  2916  		}
  2917  		v.copyOf(x)
  2918  		return true
  2919  	}
  2920  	return false
  2921  }
  2922  func rewriteValueMIPS_OpMIPSMOVDstore(v *Value) bool {
  2923  	v_2 := v.Args[2]
  2924  	v_1 := v.Args[1]
  2925  	v_0 := v.Args[0]
  2926  	// match: (MOVDstore [off1] {sym} x:(ADDconst [off2] ptr) val mem)
  2927  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2928  	// result: (MOVDstore [off1+off2] {sym} ptr val mem)
  2929  	for {
  2930  		off1 := auxIntToInt32(v.AuxInt)
  2931  		sym := auxToSym(v.Aux)
  2932  		x := v_0
  2933  		if x.Op != OpMIPSADDconst {
  2934  			break
  2935  		}
  2936  		off2 := auxIntToInt32(x.AuxInt)
  2937  		ptr := x.Args[0]
  2938  		val := v_1
  2939  		mem := v_2
  2940  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  2941  			break
  2942  		}
  2943  		v.reset(OpMIPSMOVDstore)
  2944  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2945  		v.Aux = symToAux(sym)
  2946  		v.AddArg3(ptr, val, mem)
  2947  		return true
  2948  	}
  2949  	// match: (MOVDstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem)
  2950  	// cond: canMergeSym(sym1,sym2)
  2951  	// result: (MOVDstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem)
  2952  	for {
  2953  		off1 := auxIntToInt32(v.AuxInt)
  2954  		sym1 := auxToSym(v.Aux)
  2955  		if v_0.Op != OpMIPSMOVWaddr {
  2956  			break
  2957  		}
  2958  		off2 := auxIntToInt32(v_0.AuxInt)
  2959  		sym2 := auxToSym(v_0.Aux)
  2960  		ptr := v_0.Args[0]
  2961  		val := v_1
  2962  		mem := v_2
  2963  		if !(canMergeSym(sym1, sym2)) {
  2964  			break
  2965  		}
  2966  		v.reset(OpMIPSMOVDstore)
  2967  		v.AuxInt = int32ToAuxInt(off1 + off2)
  2968  		v.Aux = symToAux(mergeSym(sym1, sym2))
  2969  		v.AddArg3(ptr, val, mem)
  2970  		return true
  2971  	}
  2972  	return false
  2973  }
  2974  func rewriteValueMIPS_OpMIPSMOVFload(v *Value) bool {
  2975  	v_1 := v.Args[1]
  2976  	v_0 := v.Args[0]
  2977  	// match: (MOVFload [off] {sym} ptr (MOVWstore [off] {sym} ptr val _))
  2978  	// result: (MOVWgpfp val)
  2979  	for {
  2980  		off := auxIntToInt32(v.AuxInt)
  2981  		sym := auxToSym(v.Aux)
  2982  		ptr := v_0
  2983  		if v_1.Op != OpMIPSMOVWstore || auxIntToInt32(v_1.AuxInt) != off || auxToSym(v_1.Aux) != sym {
  2984  			break
  2985  		}
  2986  		val := v_1.Args[1]
  2987  		if ptr != v_1.Args[0] {
  2988  			break
  2989  		}
  2990  		v.reset(OpMIPSMOVWgpfp)
  2991  		v.AddArg(val)
  2992  		return true
  2993  	}
  2994  	// match: (MOVFload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  2995  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  2996  	// result: (MOVFload [off1+off2] {sym} ptr mem)
  2997  	for {
  2998  		off1 := auxIntToInt32(v.AuxInt)
  2999  		sym := auxToSym(v.Aux)
  3000  		x := v_0
  3001  		if x.Op != OpMIPSADDconst {
  3002  			break
  3003  		}
  3004  		off2 := auxIntToInt32(x.AuxInt)
  3005  		ptr := x.Args[0]
  3006  		mem := v_1
  3007  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3008  			break
  3009  		}
  3010  		v.reset(OpMIPSMOVFload)
  3011  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3012  		v.Aux = symToAux(sym)
  3013  		v.AddArg2(ptr, mem)
  3014  		return true
  3015  	}
  3016  	// match: (MOVFload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  3017  	// cond: canMergeSym(sym1,sym2)
  3018  	// result: (MOVFload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  3019  	for {
  3020  		off1 := auxIntToInt32(v.AuxInt)
  3021  		sym1 := auxToSym(v.Aux)
  3022  		if v_0.Op != OpMIPSMOVWaddr {
  3023  			break
  3024  		}
  3025  		off2 := auxIntToInt32(v_0.AuxInt)
  3026  		sym2 := auxToSym(v_0.Aux)
  3027  		ptr := v_0.Args[0]
  3028  		mem := v_1
  3029  		if !(canMergeSym(sym1, sym2)) {
  3030  			break
  3031  		}
  3032  		v.reset(OpMIPSMOVFload)
  3033  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3034  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3035  		v.AddArg2(ptr, mem)
  3036  		return true
  3037  	}
  3038  	// match: (MOVFload [off] {sym} ptr (MOVFstore [off2] {sym2} ptr2 x _))
  3039  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  3040  	// result: x
  3041  	for {
  3042  		off := auxIntToInt32(v.AuxInt)
  3043  		sym := auxToSym(v.Aux)
  3044  		ptr := v_0
  3045  		if v_1.Op != OpMIPSMOVFstore {
  3046  			break
  3047  		}
  3048  		off2 := auxIntToInt32(v_1.AuxInt)
  3049  		sym2 := auxToSym(v_1.Aux)
  3050  		x := v_1.Args[1]
  3051  		ptr2 := v_1.Args[0]
  3052  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  3053  			break
  3054  		}
  3055  		v.copyOf(x)
  3056  		return true
  3057  	}
  3058  	return false
  3059  }
  3060  func rewriteValueMIPS_OpMIPSMOVFstore(v *Value) bool {
  3061  	v_2 := v.Args[2]
  3062  	v_1 := v.Args[1]
  3063  	v_0 := v.Args[0]
  3064  	// match: (MOVFstore [off] {sym} ptr (MOVWgpfp val) mem)
  3065  	// result: (MOVWstore [off] {sym} ptr val mem)
  3066  	for {
  3067  		off := auxIntToInt32(v.AuxInt)
  3068  		sym := auxToSym(v.Aux)
  3069  		ptr := v_0
  3070  		if v_1.Op != OpMIPSMOVWgpfp {
  3071  			break
  3072  		}
  3073  		val := v_1.Args[0]
  3074  		mem := v_2
  3075  		v.reset(OpMIPSMOVWstore)
  3076  		v.AuxInt = int32ToAuxInt(off)
  3077  		v.Aux = symToAux(sym)
  3078  		v.AddArg3(ptr, val, mem)
  3079  		return true
  3080  	}
  3081  	// match: (MOVFstore [off1] {sym} x:(ADDconst [off2] ptr) val mem)
  3082  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3083  	// result: (MOVFstore [off1+off2] {sym} ptr val mem)
  3084  	for {
  3085  		off1 := auxIntToInt32(v.AuxInt)
  3086  		sym := auxToSym(v.Aux)
  3087  		x := v_0
  3088  		if x.Op != OpMIPSADDconst {
  3089  			break
  3090  		}
  3091  		off2 := auxIntToInt32(x.AuxInt)
  3092  		ptr := x.Args[0]
  3093  		val := v_1
  3094  		mem := v_2
  3095  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3096  			break
  3097  		}
  3098  		v.reset(OpMIPSMOVFstore)
  3099  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3100  		v.Aux = symToAux(sym)
  3101  		v.AddArg3(ptr, val, mem)
  3102  		return true
  3103  	}
  3104  	// match: (MOVFstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem)
  3105  	// cond: canMergeSym(sym1,sym2)
  3106  	// result: (MOVFstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem)
  3107  	for {
  3108  		off1 := auxIntToInt32(v.AuxInt)
  3109  		sym1 := auxToSym(v.Aux)
  3110  		if v_0.Op != OpMIPSMOVWaddr {
  3111  			break
  3112  		}
  3113  		off2 := auxIntToInt32(v_0.AuxInt)
  3114  		sym2 := auxToSym(v_0.Aux)
  3115  		ptr := v_0.Args[0]
  3116  		val := v_1
  3117  		mem := v_2
  3118  		if !(canMergeSym(sym1, sym2)) {
  3119  			break
  3120  		}
  3121  		v.reset(OpMIPSMOVFstore)
  3122  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3123  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3124  		v.AddArg3(ptr, val, mem)
  3125  		return true
  3126  	}
  3127  	return false
  3128  }
  3129  func rewriteValueMIPS_OpMIPSMOVHUload(v *Value) bool {
  3130  	v_1 := v.Args[1]
  3131  	v_0 := v.Args[0]
  3132  	// match: (MOVHUload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  3133  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3134  	// result: (MOVHUload [off1+off2] {sym} ptr mem)
  3135  	for {
  3136  		off1 := auxIntToInt32(v.AuxInt)
  3137  		sym := auxToSym(v.Aux)
  3138  		x := v_0
  3139  		if x.Op != OpMIPSADDconst {
  3140  			break
  3141  		}
  3142  		off2 := auxIntToInt32(x.AuxInt)
  3143  		ptr := x.Args[0]
  3144  		mem := v_1
  3145  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3146  			break
  3147  		}
  3148  		v.reset(OpMIPSMOVHUload)
  3149  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3150  		v.Aux = symToAux(sym)
  3151  		v.AddArg2(ptr, mem)
  3152  		return true
  3153  	}
  3154  	// match: (MOVHUload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  3155  	// cond: canMergeSym(sym1,sym2)
  3156  	// result: (MOVHUload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  3157  	for {
  3158  		off1 := auxIntToInt32(v.AuxInt)
  3159  		sym1 := auxToSym(v.Aux)
  3160  		if v_0.Op != OpMIPSMOVWaddr {
  3161  			break
  3162  		}
  3163  		off2 := auxIntToInt32(v_0.AuxInt)
  3164  		sym2 := auxToSym(v_0.Aux)
  3165  		ptr := v_0.Args[0]
  3166  		mem := v_1
  3167  		if !(canMergeSym(sym1, sym2)) {
  3168  			break
  3169  		}
  3170  		v.reset(OpMIPSMOVHUload)
  3171  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3172  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3173  		v.AddArg2(ptr, mem)
  3174  		return true
  3175  	}
  3176  	// match: (MOVHUload [off] {sym} ptr (MOVHstore [off2] {sym2} ptr2 x _))
  3177  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  3178  	// result: (MOVHUreg x)
  3179  	for {
  3180  		off := auxIntToInt32(v.AuxInt)
  3181  		sym := auxToSym(v.Aux)
  3182  		ptr := v_0
  3183  		if v_1.Op != OpMIPSMOVHstore {
  3184  			break
  3185  		}
  3186  		off2 := auxIntToInt32(v_1.AuxInt)
  3187  		sym2 := auxToSym(v_1.Aux)
  3188  		x := v_1.Args[1]
  3189  		ptr2 := v_1.Args[0]
  3190  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  3191  			break
  3192  		}
  3193  		v.reset(OpMIPSMOVHUreg)
  3194  		v.AddArg(x)
  3195  		return true
  3196  	}
  3197  	return false
  3198  }
  3199  func rewriteValueMIPS_OpMIPSMOVHUreg(v *Value) bool {
  3200  	v_0 := v.Args[0]
  3201  	b := v.Block
  3202  	// match: (MOVHUreg x:(MOVBUload _ _))
  3203  	// result: (MOVWreg x)
  3204  	for {
  3205  		x := v_0
  3206  		if x.Op != OpMIPSMOVBUload {
  3207  			break
  3208  		}
  3209  		v.reset(OpMIPSMOVWreg)
  3210  		v.AddArg(x)
  3211  		return true
  3212  	}
  3213  	// match: (MOVHUreg x:(MOVHUload _ _))
  3214  	// result: (MOVWreg x)
  3215  	for {
  3216  		x := v_0
  3217  		if x.Op != OpMIPSMOVHUload {
  3218  			break
  3219  		}
  3220  		v.reset(OpMIPSMOVWreg)
  3221  		v.AddArg(x)
  3222  		return true
  3223  	}
  3224  	// match: (MOVHUreg x:(MOVBUreg _))
  3225  	// result: (MOVWreg x)
  3226  	for {
  3227  		x := v_0
  3228  		if x.Op != OpMIPSMOVBUreg {
  3229  			break
  3230  		}
  3231  		v.reset(OpMIPSMOVWreg)
  3232  		v.AddArg(x)
  3233  		return true
  3234  	}
  3235  	// match: (MOVHUreg x:(MOVHUreg _))
  3236  	// result: (MOVWreg x)
  3237  	for {
  3238  		x := v_0
  3239  		if x.Op != OpMIPSMOVHUreg {
  3240  			break
  3241  		}
  3242  		v.reset(OpMIPSMOVWreg)
  3243  		v.AddArg(x)
  3244  		return true
  3245  	}
  3246  	// match: (MOVHUreg <t> x:(MOVHload [off] {sym} ptr mem))
  3247  	// cond: x.Uses == 1 && clobber(x)
  3248  	// result: @x.Block (MOVHUload <t> [off] {sym} ptr mem)
  3249  	for {
  3250  		t := v.Type
  3251  		x := v_0
  3252  		if x.Op != OpMIPSMOVHload {
  3253  			break
  3254  		}
  3255  		off := auxIntToInt32(x.AuxInt)
  3256  		sym := auxToSym(x.Aux)
  3257  		mem := x.Args[1]
  3258  		ptr := x.Args[0]
  3259  		if !(x.Uses == 1 && clobber(x)) {
  3260  			break
  3261  		}
  3262  		b = x.Block
  3263  		v0 := b.NewValue0(x.Pos, OpMIPSMOVHUload, t)
  3264  		v.copyOf(v0)
  3265  		v0.AuxInt = int32ToAuxInt(off)
  3266  		v0.Aux = symToAux(sym)
  3267  		v0.AddArg2(ptr, mem)
  3268  		return true
  3269  	}
  3270  	// match: (MOVHUreg (ANDconst [c] x))
  3271  	// result: (ANDconst [c&0xffff] x)
  3272  	for {
  3273  		if v_0.Op != OpMIPSANDconst {
  3274  			break
  3275  		}
  3276  		c := auxIntToInt32(v_0.AuxInt)
  3277  		x := v_0.Args[0]
  3278  		v.reset(OpMIPSANDconst)
  3279  		v.AuxInt = int32ToAuxInt(c & 0xffff)
  3280  		v.AddArg(x)
  3281  		return true
  3282  	}
  3283  	// match: (MOVHUreg (MOVWconst [c]))
  3284  	// result: (MOVWconst [int32(uint16(c))])
  3285  	for {
  3286  		if v_0.Op != OpMIPSMOVWconst {
  3287  			break
  3288  		}
  3289  		c := auxIntToInt32(v_0.AuxInt)
  3290  		v.reset(OpMIPSMOVWconst)
  3291  		v.AuxInt = int32ToAuxInt(int32(uint16(c)))
  3292  		return true
  3293  	}
  3294  	return false
  3295  }
  3296  func rewriteValueMIPS_OpMIPSMOVHload(v *Value) bool {
  3297  	v_1 := v.Args[1]
  3298  	v_0 := v.Args[0]
  3299  	// match: (MOVHload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  3300  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3301  	// result: (MOVHload [off1+off2] {sym} ptr mem)
  3302  	for {
  3303  		off1 := auxIntToInt32(v.AuxInt)
  3304  		sym := auxToSym(v.Aux)
  3305  		x := v_0
  3306  		if x.Op != OpMIPSADDconst {
  3307  			break
  3308  		}
  3309  		off2 := auxIntToInt32(x.AuxInt)
  3310  		ptr := x.Args[0]
  3311  		mem := v_1
  3312  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3313  			break
  3314  		}
  3315  		v.reset(OpMIPSMOVHload)
  3316  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3317  		v.Aux = symToAux(sym)
  3318  		v.AddArg2(ptr, mem)
  3319  		return true
  3320  	}
  3321  	// match: (MOVHload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  3322  	// cond: canMergeSym(sym1,sym2)
  3323  	// result: (MOVHload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  3324  	for {
  3325  		off1 := auxIntToInt32(v.AuxInt)
  3326  		sym1 := auxToSym(v.Aux)
  3327  		if v_0.Op != OpMIPSMOVWaddr {
  3328  			break
  3329  		}
  3330  		off2 := auxIntToInt32(v_0.AuxInt)
  3331  		sym2 := auxToSym(v_0.Aux)
  3332  		ptr := v_0.Args[0]
  3333  		mem := v_1
  3334  		if !(canMergeSym(sym1, sym2)) {
  3335  			break
  3336  		}
  3337  		v.reset(OpMIPSMOVHload)
  3338  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3339  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3340  		v.AddArg2(ptr, mem)
  3341  		return true
  3342  	}
  3343  	// match: (MOVHload [off] {sym} ptr (MOVHstore [off2] {sym2} ptr2 x _))
  3344  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  3345  	// result: (MOVHreg x)
  3346  	for {
  3347  		off := auxIntToInt32(v.AuxInt)
  3348  		sym := auxToSym(v.Aux)
  3349  		ptr := v_0
  3350  		if v_1.Op != OpMIPSMOVHstore {
  3351  			break
  3352  		}
  3353  		off2 := auxIntToInt32(v_1.AuxInt)
  3354  		sym2 := auxToSym(v_1.Aux)
  3355  		x := v_1.Args[1]
  3356  		ptr2 := v_1.Args[0]
  3357  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  3358  			break
  3359  		}
  3360  		v.reset(OpMIPSMOVHreg)
  3361  		v.AddArg(x)
  3362  		return true
  3363  	}
  3364  	return false
  3365  }
  3366  func rewriteValueMIPS_OpMIPSMOVHreg(v *Value) bool {
  3367  	v_0 := v.Args[0]
  3368  	b := v.Block
  3369  	// match: (MOVHreg x:(MOVBload _ _))
  3370  	// result: (MOVWreg x)
  3371  	for {
  3372  		x := v_0
  3373  		if x.Op != OpMIPSMOVBload {
  3374  			break
  3375  		}
  3376  		v.reset(OpMIPSMOVWreg)
  3377  		v.AddArg(x)
  3378  		return true
  3379  	}
  3380  	// match: (MOVHreg x:(MOVBUload _ _))
  3381  	// result: (MOVWreg x)
  3382  	for {
  3383  		x := v_0
  3384  		if x.Op != OpMIPSMOVBUload {
  3385  			break
  3386  		}
  3387  		v.reset(OpMIPSMOVWreg)
  3388  		v.AddArg(x)
  3389  		return true
  3390  	}
  3391  	// match: (MOVHreg x:(MOVHload _ _))
  3392  	// result: (MOVWreg x)
  3393  	for {
  3394  		x := v_0
  3395  		if x.Op != OpMIPSMOVHload {
  3396  			break
  3397  		}
  3398  		v.reset(OpMIPSMOVWreg)
  3399  		v.AddArg(x)
  3400  		return true
  3401  	}
  3402  	// match: (MOVHreg x:(MOVBreg _))
  3403  	// result: (MOVWreg x)
  3404  	for {
  3405  		x := v_0
  3406  		if x.Op != OpMIPSMOVBreg {
  3407  			break
  3408  		}
  3409  		v.reset(OpMIPSMOVWreg)
  3410  		v.AddArg(x)
  3411  		return true
  3412  	}
  3413  	// match: (MOVHreg x:(MOVBUreg _))
  3414  	// result: (MOVWreg x)
  3415  	for {
  3416  		x := v_0
  3417  		if x.Op != OpMIPSMOVBUreg {
  3418  			break
  3419  		}
  3420  		v.reset(OpMIPSMOVWreg)
  3421  		v.AddArg(x)
  3422  		return true
  3423  	}
  3424  	// match: (MOVHreg x:(MOVHreg _))
  3425  	// result: (MOVWreg x)
  3426  	for {
  3427  		x := v_0
  3428  		if x.Op != OpMIPSMOVHreg {
  3429  			break
  3430  		}
  3431  		v.reset(OpMIPSMOVWreg)
  3432  		v.AddArg(x)
  3433  		return true
  3434  	}
  3435  	// match: (MOVHreg <t> x:(MOVHUload [off] {sym} ptr mem))
  3436  	// cond: x.Uses == 1 && clobber(x)
  3437  	// result: @x.Block (MOVHload <t> [off] {sym} ptr mem)
  3438  	for {
  3439  		t := v.Type
  3440  		x := v_0
  3441  		if x.Op != OpMIPSMOVHUload {
  3442  			break
  3443  		}
  3444  		off := auxIntToInt32(x.AuxInt)
  3445  		sym := auxToSym(x.Aux)
  3446  		mem := x.Args[1]
  3447  		ptr := x.Args[0]
  3448  		if !(x.Uses == 1 && clobber(x)) {
  3449  			break
  3450  		}
  3451  		b = x.Block
  3452  		v0 := b.NewValue0(x.Pos, OpMIPSMOVHload, t)
  3453  		v.copyOf(v0)
  3454  		v0.AuxInt = int32ToAuxInt(off)
  3455  		v0.Aux = symToAux(sym)
  3456  		v0.AddArg2(ptr, mem)
  3457  		return true
  3458  	}
  3459  	// match: (MOVHreg (ANDconst [c] x))
  3460  	// cond: c & 0x8000 == 0
  3461  	// result: (ANDconst [c&0x7fff] x)
  3462  	for {
  3463  		if v_0.Op != OpMIPSANDconst {
  3464  			break
  3465  		}
  3466  		c := auxIntToInt32(v_0.AuxInt)
  3467  		x := v_0.Args[0]
  3468  		if !(c&0x8000 == 0) {
  3469  			break
  3470  		}
  3471  		v.reset(OpMIPSANDconst)
  3472  		v.AuxInt = int32ToAuxInt(c & 0x7fff)
  3473  		v.AddArg(x)
  3474  		return true
  3475  	}
  3476  	// match: (MOVHreg (MOVWconst [c]))
  3477  	// result: (MOVWconst [int32(int16(c))])
  3478  	for {
  3479  		if v_0.Op != OpMIPSMOVWconst {
  3480  			break
  3481  		}
  3482  		c := auxIntToInt32(v_0.AuxInt)
  3483  		v.reset(OpMIPSMOVWconst)
  3484  		v.AuxInt = int32ToAuxInt(int32(int16(c)))
  3485  		return true
  3486  	}
  3487  	return false
  3488  }
  3489  func rewriteValueMIPS_OpMIPSMOVHstore(v *Value) bool {
  3490  	v_2 := v.Args[2]
  3491  	v_1 := v.Args[1]
  3492  	v_0 := v.Args[0]
  3493  	// match: (MOVHstore [off1] {sym} x:(ADDconst [off2] ptr) val mem)
  3494  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3495  	// result: (MOVHstore [off1+off2] {sym} ptr val mem)
  3496  	for {
  3497  		off1 := auxIntToInt32(v.AuxInt)
  3498  		sym := auxToSym(v.Aux)
  3499  		x := v_0
  3500  		if x.Op != OpMIPSADDconst {
  3501  			break
  3502  		}
  3503  		off2 := auxIntToInt32(x.AuxInt)
  3504  		ptr := x.Args[0]
  3505  		val := v_1
  3506  		mem := v_2
  3507  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3508  			break
  3509  		}
  3510  		v.reset(OpMIPSMOVHstore)
  3511  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3512  		v.Aux = symToAux(sym)
  3513  		v.AddArg3(ptr, val, mem)
  3514  		return true
  3515  	}
  3516  	// match: (MOVHstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem)
  3517  	// cond: canMergeSym(sym1,sym2)
  3518  	// result: (MOVHstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem)
  3519  	for {
  3520  		off1 := auxIntToInt32(v.AuxInt)
  3521  		sym1 := auxToSym(v.Aux)
  3522  		if v_0.Op != OpMIPSMOVWaddr {
  3523  			break
  3524  		}
  3525  		off2 := auxIntToInt32(v_0.AuxInt)
  3526  		sym2 := auxToSym(v_0.Aux)
  3527  		ptr := v_0.Args[0]
  3528  		val := v_1
  3529  		mem := v_2
  3530  		if !(canMergeSym(sym1, sym2)) {
  3531  			break
  3532  		}
  3533  		v.reset(OpMIPSMOVHstore)
  3534  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3535  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3536  		v.AddArg3(ptr, val, mem)
  3537  		return true
  3538  	}
  3539  	// match: (MOVHstore [off] {sym} ptr (MOVWconst [0]) mem)
  3540  	// result: (MOVHstorezero [off] {sym} ptr mem)
  3541  	for {
  3542  		off := auxIntToInt32(v.AuxInt)
  3543  		sym := auxToSym(v.Aux)
  3544  		ptr := v_0
  3545  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  3546  			break
  3547  		}
  3548  		mem := v_2
  3549  		v.reset(OpMIPSMOVHstorezero)
  3550  		v.AuxInt = int32ToAuxInt(off)
  3551  		v.Aux = symToAux(sym)
  3552  		v.AddArg2(ptr, mem)
  3553  		return true
  3554  	}
  3555  	// match: (MOVHstore [off] {sym} ptr (MOVHreg x) mem)
  3556  	// result: (MOVHstore [off] {sym} ptr x mem)
  3557  	for {
  3558  		off := auxIntToInt32(v.AuxInt)
  3559  		sym := auxToSym(v.Aux)
  3560  		ptr := v_0
  3561  		if v_1.Op != OpMIPSMOVHreg {
  3562  			break
  3563  		}
  3564  		x := v_1.Args[0]
  3565  		mem := v_2
  3566  		v.reset(OpMIPSMOVHstore)
  3567  		v.AuxInt = int32ToAuxInt(off)
  3568  		v.Aux = symToAux(sym)
  3569  		v.AddArg3(ptr, x, mem)
  3570  		return true
  3571  	}
  3572  	// match: (MOVHstore [off] {sym} ptr (MOVHUreg x) mem)
  3573  	// result: (MOVHstore [off] {sym} ptr x mem)
  3574  	for {
  3575  		off := auxIntToInt32(v.AuxInt)
  3576  		sym := auxToSym(v.Aux)
  3577  		ptr := v_0
  3578  		if v_1.Op != OpMIPSMOVHUreg {
  3579  			break
  3580  		}
  3581  		x := v_1.Args[0]
  3582  		mem := v_2
  3583  		v.reset(OpMIPSMOVHstore)
  3584  		v.AuxInt = int32ToAuxInt(off)
  3585  		v.Aux = symToAux(sym)
  3586  		v.AddArg3(ptr, x, mem)
  3587  		return true
  3588  	}
  3589  	// match: (MOVHstore [off] {sym} ptr (MOVWreg x) mem)
  3590  	// result: (MOVHstore [off] {sym} ptr x mem)
  3591  	for {
  3592  		off := auxIntToInt32(v.AuxInt)
  3593  		sym := auxToSym(v.Aux)
  3594  		ptr := v_0
  3595  		if v_1.Op != OpMIPSMOVWreg {
  3596  			break
  3597  		}
  3598  		x := v_1.Args[0]
  3599  		mem := v_2
  3600  		v.reset(OpMIPSMOVHstore)
  3601  		v.AuxInt = int32ToAuxInt(off)
  3602  		v.Aux = symToAux(sym)
  3603  		v.AddArg3(ptr, x, mem)
  3604  		return true
  3605  	}
  3606  	return false
  3607  }
  3608  func rewriteValueMIPS_OpMIPSMOVHstorezero(v *Value) bool {
  3609  	v_1 := v.Args[1]
  3610  	v_0 := v.Args[0]
  3611  	// match: (MOVHstorezero [off1] {sym} x:(ADDconst [off2] ptr) mem)
  3612  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3613  	// result: (MOVHstorezero [off1+off2] {sym} ptr mem)
  3614  	for {
  3615  		off1 := auxIntToInt32(v.AuxInt)
  3616  		sym := auxToSym(v.Aux)
  3617  		x := v_0
  3618  		if x.Op != OpMIPSADDconst {
  3619  			break
  3620  		}
  3621  		off2 := auxIntToInt32(x.AuxInt)
  3622  		ptr := x.Args[0]
  3623  		mem := v_1
  3624  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3625  			break
  3626  		}
  3627  		v.reset(OpMIPSMOVHstorezero)
  3628  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3629  		v.Aux = symToAux(sym)
  3630  		v.AddArg2(ptr, mem)
  3631  		return true
  3632  	}
  3633  	// match: (MOVHstorezero [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  3634  	// cond: canMergeSym(sym1,sym2)
  3635  	// result: (MOVHstorezero [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  3636  	for {
  3637  		off1 := auxIntToInt32(v.AuxInt)
  3638  		sym1 := auxToSym(v.Aux)
  3639  		if v_0.Op != OpMIPSMOVWaddr {
  3640  			break
  3641  		}
  3642  		off2 := auxIntToInt32(v_0.AuxInt)
  3643  		sym2 := auxToSym(v_0.Aux)
  3644  		ptr := v_0.Args[0]
  3645  		mem := v_1
  3646  		if !(canMergeSym(sym1, sym2)) {
  3647  			break
  3648  		}
  3649  		v.reset(OpMIPSMOVHstorezero)
  3650  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3651  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3652  		v.AddArg2(ptr, mem)
  3653  		return true
  3654  	}
  3655  	return false
  3656  }
  3657  func rewriteValueMIPS_OpMIPSMOVWload(v *Value) bool {
  3658  	v_1 := v.Args[1]
  3659  	v_0 := v.Args[0]
  3660  	// match: (MOVWload [off] {sym} ptr (MOVFstore [off] {sym} ptr val _))
  3661  	// result: (MOVWfpgp val)
  3662  	for {
  3663  		off := auxIntToInt32(v.AuxInt)
  3664  		sym := auxToSym(v.Aux)
  3665  		ptr := v_0
  3666  		if v_1.Op != OpMIPSMOVFstore || auxIntToInt32(v_1.AuxInt) != off || auxToSym(v_1.Aux) != sym {
  3667  			break
  3668  		}
  3669  		val := v_1.Args[1]
  3670  		if ptr != v_1.Args[0] {
  3671  			break
  3672  		}
  3673  		v.reset(OpMIPSMOVWfpgp)
  3674  		v.AddArg(val)
  3675  		return true
  3676  	}
  3677  	// match: (MOVWload [off1] {sym} x:(ADDconst [off2] ptr) mem)
  3678  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3679  	// result: (MOVWload [off1+off2] {sym} ptr mem)
  3680  	for {
  3681  		off1 := auxIntToInt32(v.AuxInt)
  3682  		sym := auxToSym(v.Aux)
  3683  		x := v_0
  3684  		if x.Op != OpMIPSADDconst {
  3685  			break
  3686  		}
  3687  		off2 := auxIntToInt32(x.AuxInt)
  3688  		ptr := x.Args[0]
  3689  		mem := v_1
  3690  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3691  			break
  3692  		}
  3693  		v.reset(OpMIPSMOVWload)
  3694  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3695  		v.Aux = symToAux(sym)
  3696  		v.AddArg2(ptr, mem)
  3697  		return true
  3698  	}
  3699  	// match: (MOVWload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  3700  	// cond: canMergeSym(sym1,sym2)
  3701  	// result: (MOVWload [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  3702  	for {
  3703  		off1 := auxIntToInt32(v.AuxInt)
  3704  		sym1 := auxToSym(v.Aux)
  3705  		if v_0.Op != OpMIPSMOVWaddr {
  3706  			break
  3707  		}
  3708  		off2 := auxIntToInt32(v_0.AuxInt)
  3709  		sym2 := auxToSym(v_0.Aux)
  3710  		ptr := v_0.Args[0]
  3711  		mem := v_1
  3712  		if !(canMergeSym(sym1, sym2)) {
  3713  			break
  3714  		}
  3715  		v.reset(OpMIPSMOVWload)
  3716  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3717  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3718  		v.AddArg2(ptr, mem)
  3719  		return true
  3720  	}
  3721  	// match: (MOVWload [off] {sym} ptr (MOVWstore [off2] {sym2} ptr2 x _))
  3722  	// cond: sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)
  3723  	// result: x
  3724  	for {
  3725  		off := auxIntToInt32(v.AuxInt)
  3726  		sym := auxToSym(v.Aux)
  3727  		ptr := v_0
  3728  		if v_1.Op != OpMIPSMOVWstore {
  3729  			break
  3730  		}
  3731  		off2 := auxIntToInt32(v_1.AuxInt)
  3732  		sym2 := auxToSym(v_1.Aux)
  3733  		x := v_1.Args[1]
  3734  		ptr2 := v_1.Args[0]
  3735  		if !(sym == sym2 && off == off2 && isSamePtr(ptr, ptr2)) {
  3736  			break
  3737  		}
  3738  		v.copyOf(x)
  3739  		return true
  3740  	}
  3741  	return false
  3742  }
  3743  func rewriteValueMIPS_OpMIPSMOVWnop(v *Value) bool {
  3744  	v_0 := v.Args[0]
  3745  	// match: (MOVWnop (MOVWconst [c]))
  3746  	// result: (MOVWconst [c])
  3747  	for {
  3748  		if v_0.Op != OpMIPSMOVWconst {
  3749  			break
  3750  		}
  3751  		c := auxIntToInt32(v_0.AuxInt)
  3752  		v.reset(OpMIPSMOVWconst)
  3753  		v.AuxInt = int32ToAuxInt(c)
  3754  		return true
  3755  	}
  3756  	return false
  3757  }
  3758  func rewriteValueMIPS_OpMIPSMOVWreg(v *Value) bool {
  3759  	v_0 := v.Args[0]
  3760  	// match: (MOVWreg x)
  3761  	// cond: x.Uses == 1
  3762  	// result: (MOVWnop x)
  3763  	for {
  3764  		x := v_0
  3765  		if !(x.Uses == 1) {
  3766  			break
  3767  		}
  3768  		v.reset(OpMIPSMOVWnop)
  3769  		v.AddArg(x)
  3770  		return true
  3771  	}
  3772  	// match: (MOVWreg (MOVWconst [c]))
  3773  	// result: (MOVWconst [c])
  3774  	for {
  3775  		if v_0.Op != OpMIPSMOVWconst {
  3776  			break
  3777  		}
  3778  		c := auxIntToInt32(v_0.AuxInt)
  3779  		v.reset(OpMIPSMOVWconst)
  3780  		v.AuxInt = int32ToAuxInt(c)
  3781  		return true
  3782  	}
  3783  	return false
  3784  }
  3785  func rewriteValueMIPS_OpMIPSMOVWstore(v *Value) bool {
  3786  	v_2 := v.Args[2]
  3787  	v_1 := v.Args[1]
  3788  	v_0 := v.Args[0]
  3789  	// match: (MOVWstore [off] {sym} ptr (MOVWfpgp val) mem)
  3790  	// result: (MOVFstore [off] {sym} ptr val mem)
  3791  	for {
  3792  		off := auxIntToInt32(v.AuxInt)
  3793  		sym := auxToSym(v.Aux)
  3794  		ptr := v_0
  3795  		if v_1.Op != OpMIPSMOVWfpgp {
  3796  			break
  3797  		}
  3798  		val := v_1.Args[0]
  3799  		mem := v_2
  3800  		v.reset(OpMIPSMOVFstore)
  3801  		v.AuxInt = int32ToAuxInt(off)
  3802  		v.Aux = symToAux(sym)
  3803  		v.AddArg3(ptr, val, mem)
  3804  		return true
  3805  	}
  3806  	// match: (MOVWstore [off1] {sym} x:(ADDconst [off2] ptr) val mem)
  3807  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3808  	// result: (MOVWstore [off1+off2] {sym} ptr val mem)
  3809  	for {
  3810  		off1 := auxIntToInt32(v.AuxInt)
  3811  		sym := auxToSym(v.Aux)
  3812  		x := v_0
  3813  		if x.Op != OpMIPSADDconst {
  3814  			break
  3815  		}
  3816  		off2 := auxIntToInt32(x.AuxInt)
  3817  		ptr := x.Args[0]
  3818  		val := v_1
  3819  		mem := v_2
  3820  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3821  			break
  3822  		}
  3823  		v.reset(OpMIPSMOVWstore)
  3824  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3825  		v.Aux = symToAux(sym)
  3826  		v.AddArg3(ptr, val, mem)
  3827  		return true
  3828  	}
  3829  	// match: (MOVWstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem)
  3830  	// cond: canMergeSym(sym1,sym2)
  3831  	// result: (MOVWstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem)
  3832  	for {
  3833  		off1 := auxIntToInt32(v.AuxInt)
  3834  		sym1 := auxToSym(v.Aux)
  3835  		if v_0.Op != OpMIPSMOVWaddr {
  3836  			break
  3837  		}
  3838  		off2 := auxIntToInt32(v_0.AuxInt)
  3839  		sym2 := auxToSym(v_0.Aux)
  3840  		ptr := v_0.Args[0]
  3841  		val := v_1
  3842  		mem := v_2
  3843  		if !(canMergeSym(sym1, sym2)) {
  3844  			break
  3845  		}
  3846  		v.reset(OpMIPSMOVWstore)
  3847  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3848  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3849  		v.AddArg3(ptr, val, mem)
  3850  		return true
  3851  	}
  3852  	// match: (MOVWstore [off] {sym} ptr (MOVWconst [0]) mem)
  3853  	// result: (MOVWstorezero [off] {sym} ptr mem)
  3854  	for {
  3855  		off := auxIntToInt32(v.AuxInt)
  3856  		sym := auxToSym(v.Aux)
  3857  		ptr := v_0
  3858  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  3859  			break
  3860  		}
  3861  		mem := v_2
  3862  		v.reset(OpMIPSMOVWstorezero)
  3863  		v.AuxInt = int32ToAuxInt(off)
  3864  		v.Aux = symToAux(sym)
  3865  		v.AddArg2(ptr, mem)
  3866  		return true
  3867  	}
  3868  	// match: (MOVWstore [off] {sym} ptr (MOVWreg x) mem)
  3869  	// result: (MOVWstore [off] {sym} ptr x mem)
  3870  	for {
  3871  		off := auxIntToInt32(v.AuxInt)
  3872  		sym := auxToSym(v.Aux)
  3873  		ptr := v_0
  3874  		if v_1.Op != OpMIPSMOVWreg {
  3875  			break
  3876  		}
  3877  		x := v_1.Args[0]
  3878  		mem := v_2
  3879  		v.reset(OpMIPSMOVWstore)
  3880  		v.AuxInt = int32ToAuxInt(off)
  3881  		v.Aux = symToAux(sym)
  3882  		v.AddArg3(ptr, x, mem)
  3883  		return true
  3884  	}
  3885  	return false
  3886  }
  3887  func rewriteValueMIPS_OpMIPSMOVWstorezero(v *Value) bool {
  3888  	v_1 := v.Args[1]
  3889  	v_0 := v.Args[0]
  3890  	// match: (MOVWstorezero [off1] {sym} x:(ADDconst [off2] ptr) mem)
  3891  	// cond: (is16Bit(int64(off1+off2)) || x.Uses == 1)
  3892  	// result: (MOVWstorezero [off1+off2] {sym} ptr mem)
  3893  	for {
  3894  		off1 := auxIntToInt32(v.AuxInt)
  3895  		sym := auxToSym(v.Aux)
  3896  		x := v_0
  3897  		if x.Op != OpMIPSADDconst {
  3898  			break
  3899  		}
  3900  		off2 := auxIntToInt32(x.AuxInt)
  3901  		ptr := x.Args[0]
  3902  		mem := v_1
  3903  		if !(is16Bit(int64(off1+off2)) || x.Uses == 1) {
  3904  			break
  3905  		}
  3906  		v.reset(OpMIPSMOVWstorezero)
  3907  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3908  		v.Aux = symToAux(sym)
  3909  		v.AddArg2(ptr, mem)
  3910  		return true
  3911  	}
  3912  	// match: (MOVWstorezero [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem)
  3913  	// cond: canMergeSym(sym1,sym2)
  3914  	// result: (MOVWstorezero [off1+off2] {mergeSym(sym1,sym2)} ptr mem)
  3915  	for {
  3916  		off1 := auxIntToInt32(v.AuxInt)
  3917  		sym1 := auxToSym(v.Aux)
  3918  		if v_0.Op != OpMIPSMOVWaddr {
  3919  			break
  3920  		}
  3921  		off2 := auxIntToInt32(v_0.AuxInt)
  3922  		sym2 := auxToSym(v_0.Aux)
  3923  		ptr := v_0.Args[0]
  3924  		mem := v_1
  3925  		if !(canMergeSym(sym1, sym2)) {
  3926  			break
  3927  		}
  3928  		v.reset(OpMIPSMOVWstorezero)
  3929  		v.AuxInt = int32ToAuxInt(off1 + off2)
  3930  		v.Aux = symToAux(mergeSym(sym1, sym2))
  3931  		v.AddArg2(ptr, mem)
  3932  		return true
  3933  	}
  3934  	return false
  3935  }
  3936  func rewriteValueMIPS_OpMIPSMUL(v *Value) bool {
  3937  	v_1 := v.Args[1]
  3938  	v_0 := v.Args[0]
  3939  	// match: (MUL (MOVWconst [0]) _ )
  3940  	// result: (MOVWconst [0])
  3941  	for {
  3942  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  3943  			if v_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0.AuxInt) != 0 {
  3944  				continue
  3945  			}
  3946  			v.reset(OpMIPSMOVWconst)
  3947  			v.AuxInt = int32ToAuxInt(0)
  3948  			return true
  3949  		}
  3950  		break
  3951  	}
  3952  	// match: (MUL (MOVWconst [1]) x )
  3953  	// result: x
  3954  	for {
  3955  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  3956  			if v_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0.AuxInt) != 1 {
  3957  				continue
  3958  			}
  3959  			x := v_1
  3960  			v.copyOf(x)
  3961  			return true
  3962  		}
  3963  		break
  3964  	}
  3965  	// match: (MUL (MOVWconst [-1]) x )
  3966  	// result: (NEG x)
  3967  	for {
  3968  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  3969  			if v_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0.AuxInt) != -1 {
  3970  				continue
  3971  			}
  3972  			x := v_1
  3973  			v.reset(OpMIPSNEG)
  3974  			v.AddArg(x)
  3975  			return true
  3976  		}
  3977  		break
  3978  	}
  3979  	// match: (MUL (MOVWconst [c]) x )
  3980  	// cond: isPowerOfTwo64(int64(uint32(c)))
  3981  	// result: (SLLconst [int32(log2uint32(int64(c)))] x)
  3982  	for {
  3983  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  3984  			if v_0.Op != OpMIPSMOVWconst {
  3985  				continue
  3986  			}
  3987  			c := auxIntToInt32(v_0.AuxInt)
  3988  			x := v_1
  3989  			if !(isPowerOfTwo64(int64(uint32(c)))) {
  3990  				continue
  3991  			}
  3992  			v.reset(OpMIPSSLLconst)
  3993  			v.AuxInt = int32ToAuxInt(int32(log2uint32(int64(c))))
  3994  			v.AddArg(x)
  3995  			return true
  3996  		}
  3997  		break
  3998  	}
  3999  	// match: (MUL (MOVWconst [c]) (MOVWconst [d]))
  4000  	// result: (MOVWconst [c*d])
  4001  	for {
  4002  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  4003  			if v_0.Op != OpMIPSMOVWconst {
  4004  				continue
  4005  			}
  4006  			c := auxIntToInt32(v_0.AuxInt)
  4007  			if v_1.Op != OpMIPSMOVWconst {
  4008  				continue
  4009  			}
  4010  			d := auxIntToInt32(v_1.AuxInt)
  4011  			v.reset(OpMIPSMOVWconst)
  4012  			v.AuxInt = int32ToAuxInt(c * d)
  4013  			return true
  4014  		}
  4015  		break
  4016  	}
  4017  	return false
  4018  }
  4019  func rewriteValueMIPS_OpMIPSNEG(v *Value) bool {
  4020  	v_0 := v.Args[0]
  4021  	// match: (NEG (MOVWconst [c]))
  4022  	// result: (MOVWconst [-c])
  4023  	for {
  4024  		if v_0.Op != OpMIPSMOVWconst {
  4025  			break
  4026  		}
  4027  		c := auxIntToInt32(v_0.AuxInt)
  4028  		v.reset(OpMIPSMOVWconst)
  4029  		v.AuxInt = int32ToAuxInt(-c)
  4030  		return true
  4031  	}
  4032  	return false
  4033  }
  4034  func rewriteValueMIPS_OpMIPSNOR(v *Value) bool {
  4035  	v_1 := v.Args[1]
  4036  	v_0 := v.Args[0]
  4037  	// match: (NOR x (MOVWconst [c]))
  4038  	// result: (NORconst [c] x)
  4039  	for {
  4040  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  4041  			x := v_0
  4042  			if v_1.Op != OpMIPSMOVWconst {
  4043  				continue
  4044  			}
  4045  			c := auxIntToInt32(v_1.AuxInt)
  4046  			v.reset(OpMIPSNORconst)
  4047  			v.AuxInt = int32ToAuxInt(c)
  4048  			v.AddArg(x)
  4049  			return true
  4050  		}
  4051  		break
  4052  	}
  4053  	return false
  4054  }
  4055  func rewriteValueMIPS_OpMIPSNORconst(v *Value) bool {
  4056  	v_0 := v.Args[0]
  4057  	// match: (NORconst [c] (MOVWconst [d]))
  4058  	// result: (MOVWconst [^(c|d)])
  4059  	for {
  4060  		c := auxIntToInt32(v.AuxInt)
  4061  		if v_0.Op != OpMIPSMOVWconst {
  4062  			break
  4063  		}
  4064  		d := auxIntToInt32(v_0.AuxInt)
  4065  		v.reset(OpMIPSMOVWconst)
  4066  		v.AuxInt = int32ToAuxInt(^(c | d))
  4067  		return true
  4068  	}
  4069  	return false
  4070  }
  4071  func rewriteValueMIPS_OpMIPSOR(v *Value) bool {
  4072  	v_1 := v.Args[1]
  4073  	v_0 := v.Args[0]
  4074  	b := v.Block
  4075  	// match: (OR x (MOVWconst [c]))
  4076  	// result: (ORconst [c] x)
  4077  	for {
  4078  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  4079  			x := v_0
  4080  			if v_1.Op != OpMIPSMOVWconst {
  4081  				continue
  4082  			}
  4083  			c := auxIntToInt32(v_1.AuxInt)
  4084  			v.reset(OpMIPSORconst)
  4085  			v.AuxInt = int32ToAuxInt(c)
  4086  			v.AddArg(x)
  4087  			return true
  4088  		}
  4089  		break
  4090  	}
  4091  	// match: (OR x x)
  4092  	// result: x
  4093  	for {
  4094  		x := v_0
  4095  		if x != v_1 {
  4096  			break
  4097  		}
  4098  		v.copyOf(x)
  4099  		return true
  4100  	}
  4101  	// match: (OR (SGTUzero x) (SGTUzero y))
  4102  	// result: (SGTUzero (OR <x.Type> x y))
  4103  	for {
  4104  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  4105  			if v_0.Op != OpMIPSSGTUzero {
  4106  				continue
  4107  			}
  4108  			x := v_0.Args[0]
  4109  			if v_1.Op != OpMIPSSGTUzero {
  4110  				continue
  4111  			}
  4112  			y := v_1.Args[0]
  4113  			v.reset(OpMIPSSGTUzero)
  4114  			v0 := b.NewValue0(v.Pos, OpMIPSOR, x.Type)
  4115  			v0.AddArg2(x, y)
  4116  			v.AddArg(v0)
  4117  			return true
  4118  		}
  4119  		break
  4120  	}
  4121  	return false
  4122  }
  4123  func rewriteValueMIPS_OpMIPSORconst(v *Value) bool {
  4124  	v_0 := v.Args[0]
  4125  	// match: (ORconst [0] x)
  4126  	// result: x
  4127  	for {
  4128  		if auxIntToInt32(v.AuxInt) != 0 {
  4129  			break
  4130  		}
  4131  		x := v_0
  4132  		v.copyOf(x)
  4133  		return true
  4134  	}
  4135  	// match: (ORconst [-1] _)
  4136  	// result: (MOVWconst [-1])
  4137  	for {
  4138  		if auxIntToInt32(v.AuxInt) != -1 {
  4139  			break
  4140  		}
  4141  		v.reset(OpMIPSMOVWconst)
  4142  		v.AuxInt = int32ToAuxInt(-1)
  4143  		return true
  4144  	}
  4145  	// match: (ORconst [c] (MOVWconst [d]))
  4146  	// result: (MOVWconst [c|d])
  4147  	for {
  4148  		c := auxIntToInt32(v.AuxInt)
  4149  		if v_0.Op != OpMIPSMOVWconst {
  4150  			break
  4151  		}
  4152  		d := auxIntToInt32(v_0.AuxInt)
  4153  		v.reset(OpMIPSMOVWconst)
  4154  		v.AuxInt = int32ToAuxInt(c | d)
  4155  		return true
  4156  	}
  4157  	// match: (ORconst [c] (ORconst [d] x))
  4158  	// result: (ORconst [c|d] x)
  4159  	for {
  4160  		c := auxIntToInt32(v.AuxInt)
  4161  		if v_0.Op != OpMIPSORconst {
  4162  			break
  4163  		}
  4164  		d := auxIntToInt32(v_0.AuxInt)
  4165  		x := v_0.Args[0]
  4166  		v.reset(OpMIPSORconst)
  4167  		v.AuxInt = int32ToAuxInt(c | d)
  4168  		v.AddArg(x)
  4169  		return true
  4170  	}
  4171  	return false
  4172  }
  4173  func rewriteValueMIPS_OpMIPSSGT(v *Value) bool {
  4174  	v_1 := v.Args[1]
  4175  	v_0 := v.Args[0]
  4176  	// match: (SGT (MOVWconst [c]) x)
  4177  	// result: (SGTconst [c] x)
  4178  	for {
  4179  		if v_0.Op != OpMIPSMOVWconst {
  4180  			break
  4181  		}
  4182  		c := auxIntToInt32(v_0.AuxInt)
  4183  		x := v_1
  4184  		v.reset(OpMIPSSGTconst)
  4185  		v.AuxInt = int32ToAuxInt(c)
  4186  		v.AddArg(x)
  4187  		return true
  4188  	}
  4189  	// match: (SGT x (MOVWconst [0]))
  4190  	// result: (SGTzero x)
  4191  	for {
  4192  		x := v_0
  4193  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  4194  			break
  4195  		}
  4196  		v.reset(OpMIPSSGTzero)
  4197  		v.AddArg(x)
  4198  		return true
  4199  	}
  4200  	return false
  4201  }
  4202  func rewriteValueMIPS_OpMIPSSGTU(v *Value) bool {
  4203  	v_1 := v.Args[1]
  4204  	v_0 := v.Args[0]
  4205  	// match: (SGTU (MOVWconst [c]) x)
  4206  	// result: (SGTUconst [c] x)
  4207  	for {
  4208  		if v_0.Op != OpMIPSMOVWconst {
  4209  			break
  4210  		}
  4211  		c := auxIntToInt32(v_0.AuxInt)
  4212  		x := v_1
  4213  		v.reset(OpMIPSSGTUconst)
  4214  		v.AuxInt = int32ToAuxInt(c)
  4215  		v.AddArg(x)
  4216  		return true
  4217  	}
  4218  	// match: (SGTU x (MOVWconst [0]))
  4219  	// result: (SGTUzero x)
  4220  	for {
  4221  		x := v_0
  4222  		if v_1.Op != OpMIPSMOVWconst || auxIntToInt32(v_1.AuxInt) != 0 {
  4223  			break
  4224  		}
  4225  		v.reset(OpMIPSSGTUzero)
  4226  		v.AddArg(x)
  4227  		return true
  4228  	}
  4229  	return false
  4230  }
  4231  func rewriteValueMIPS_OpMIPSSGTUconst(v *Value) bool {
  4232  	v_0 := v.Args[0]
  4233  	// match: (SGTUconst [c] (MOVWconst [d]))
  4234  	// cond: uint32(c) > uint32(d)
  4235  	// result: (MOVWconst [1])
  4236  	for {
  4237  		c := auxIntToInt32(v.AuxInt)
  4238  		if v_0.Op != OpMIPSMOVWconst {
  4239  			break
  4240  		}
  4241  		d := auxIntToInt32(v_0.AuxInt)
  4242  		if !(uint32(c) > uint32(d)) {
  4243  			break
  4244  		}
  4245  		v.reset(OpMIPSMOVWconst)
  4246  		v.AuxInt = int32ToAuxInt(1)
  4247  		return true
  4248  	}
  4249  	// match: (SGTUconst [c] (MOVWconst [d]))
  4250  	// cond: uint32(c) <= uint32(d)
  4251  	// result: (MOVWconst [0])
  4252  	for {
  4253  		c := auxIntToInt32(v.AuxInt)
  4254  		if v_0.Op != OpMIPSMOVWconst {
  4255  			break
  4256  		}
  4257  		d := auxIntToInt32(v_0.AuxInt)
  4258  		if !(uint32(c) <= uint32(d)) {
  4259  			break
  4260  		}
  4261  		v.reset(OpMIPSMOVWconst)
  4262  		v.AuxInt = int32ToAuxInt(0)
  4263  		return true
  4264  	}
  4265  	// match: (SGTUconst [c] (MOVBUreg _))
  4266  	// cond: 0xff < uint32(c)
  4267  	// result: (MOVWconst [1])
  4268  	for {
  4269  		c := auxIntToInt32(v.AuxInt)
  4270  		if v_0.Op != OpMIPSMOVBUreg || !(0xff < uint32(c)) {
  4271  			break
  4272  		}
  4273  		v.reset(OpMIPSMOVWconst)
  4274  		v.AuxInt = int32ToAuxInt(1)
  4275  		return true
  4276  	}
  4277  	// match: (SGTUconst [c] (MOVHUreg _))
  4278  	// cond: 0xffff < uint32(c)
  4279  	// result: (MOVWconst [1])
  4280  	for {
  4281  		c := auxIntToInt32(v.AuxInt)
  4282  		if v_0.Op != OpMIPSMOVHUreg || !(0xffff < uint32(c)) {
  4283  			break
  4284  		}
  4285  		v.reset(OpMIPSMOVWconst)
  4286  		v.AuxInt = int32ToAuxInt(1)
  4287  		return true
  4288  	}
  4289  	// match: (SGTUconst [c] (ANDconst [m] _))
  4290  	// cond: uint32(m) < uint32(c)
  4291  	// result: (MOVWconst [1])
  4292  	for {
  4293  		c := auxIntToInt32(v.AuxInt)
  4294  		if v_0.Op != OpMIPSANDconst {
  4295  			break
  4296  		}
  4297  		m := auxIntToInt32(v_0.AuxInt)
  4298  		if !(uint32(m) < uint32(c)) {
  4299  			break
  4300  		}
  4301  		v.reset(OpMIPSMOVWconst)
  4302  		v.AuxInt = int32ToAuxInt(1)
  4303  		return true
  4304  	}
  4305  	// match: (SGTUconst [c] (SRLconst _ [d]))
  4306  	// cond: uint32(d) <= 31 && 0xffffffff>>uint32(d) < uint32(c)
  4307  	// result: (MOVWconst [1])
  4308  	for {
  4309  		c := auxIntToInt32(v.AuxInt)
  4310  		if v_0.Op != OpMIPSSRLconst {
  4311  			break
  4312  		}
  4313  		d := auxIntToInt32(v_0.AuxInt)
  4314  		if !(uint32(d) <= 31 && 0xffffffff>>uint32(d) < uint32(c)) {
  4315  			break
  4316  		}
  4317  		v.reset(OpMIPSMOVWconst)
  4318  		v.AuxInt = int32ToAuxInt(1)
  4319  		return true
  4320  	}
  4321  	return false
  4322  }
  4323  func rewriteValueMIPS_OpMIPSSGTUzero(v *Value) bool {
  4324  	v_0 := v.Args[0]
  4325  	// match: (SGTUzero (MOVWconst [d]))
  4326  	// cond: d != 0
  4327  	// result: (MOVWconst [1])
  4328  	for {
  4329  		if v_0.Op != OpMIPSMOVWconst {
  4330  			break
  4331  		}
  4332  		d := auxIntToInt32(v_0.AuxInt)
  4333  		if !(d != 0) {
  4334  			break
  4335  		}
  4336  		v.reset(OpMIPSMOVWconst)
  4337  		v.AuxInt = int32ToAuxInt(1)
  4338  		return true
  4339  	}
  4340  	// match: (SGTUzero (MOVWconst [d]))
  4341  	// cond: d == 0
  4342  	// result: (MOVWconst [0])
  4343  	for {
  4344  		if v_0.Op != OpMIPSMOVWconst {
  4345  			break
  4346  		}
  4347  		d := auxIntToInt32(v_0.AuxInt)
  4348  		if !(d == 0) {
  4349  			break
  4350  		}
  4351  		v.reset(OpMIPSMOVWconst)
  4352  		v.AuxInt = int32ToAuxInt(0)
  4353  		return true
  4354  	}
  4355  	return false
  4356  }
  4357  func rewriteValueMIPS_OpMIPSSGTconst(v *Value) bool {
  4358  	v_0 := v.Args[0]
  4359  	// match: (SGTconst [c] (MOVWconst [d]))
  4360  	// cond: c > d
  4361  	// result: (MOVWconst [1])
  4362  	for {
  4363  		c := auxIntToInt32(v.AuxInt)
  4364  		if v_0.Op != OpMIPSMOVWconst {
  4365  			break
  4366  		}
  4367  		d := auxIntToInt32(v_0.AuxInt)
  4368  		if !(c > d) {
  4369  			break
  4370  		}
  4371  		v.reset(OpMIPSMOVWconst)
  4372  		v.AuxInt = int32ToAuxInt(1)
  4373  		return true
  4374  	}
  4375  	// match: (SGTconst [c] (MOVWconst [d]))
  4376  	// cond: c <= d
  4377  	// result: (MOVWconst [0])
  4378  	for {
  4379  		c := auxIntToInt32(v.AuxInt)
  4380  		if v_0.Op != OpMIPSMOVWconst {
  4381  			break
  4382  		}
  4383  		d := auxIntToInt32(v_0.AuxInt)
  4384  		if !(c <= d) {
  4385  			break
  4386  		}
  4387  		v.reset(OpMIPSMOVWconst)
  4388  		v.AuxInt = int32ToAuxInt(0)
  4389  		return true
  4390  	}
  4391  	// match: (SGTconst [c] (MOVBreg _))
  4392  	// cond: 0x7f < c
  4393  	// result: (MOVWconst [1])
  4394  	for {
  4395  		c := auxIntToInt32(v.AuxInt)
  4396  		if v_0.Op != OpMIPSMOVBreg || !(0x7f < c) {
  4397  			break
  4398  		}
  4399  		v.reset(OpMIPSMOVWconst)
  4400  		v.AuxInt = int32ToAuxInt(1)
  4401  		return true
  4402  	}
  4403  	// match: (SGTconst [c] (MOVBreg _))
  4404  	// cond: c <= -0x80
  4405  	// result: (MOVWconst [0])
  4406  	for {
  4407  		c := auxIntToInt32(v.AuxInt)
  4408  		if v_0.Op != OpMIPSMOVBreg || !(c <= -0x80) {
  4409  			break
  4410  		}
  4411  		v.reset(OpMIPSMOVWconst)
  4412  		v.AuxInt = int32ToAuxInt(0)
  4413  		return true
  4414  	}
  4415  	// match: (SGTconst [c] (MOVBUreg _))
  4416  	// cond: 0xff < c
  4417  	// result: (MOVWconst [1])
  4418  	for {
  4419  		c := auxIntToInt32(v.AuxInt)
  4420  		if v_0.Op != OpMIPSMOVBUreg || !(0xff < c) {
  4421  			break
  4422  		}
  4423  		v.reset(OpMIPSMOVWconst)
  4424  		v.AuxInt = int32ToAuxInt(1)
  4425  		return true
  4426  	}
  4427  	// match: (SGTconst [c] (MOVBUreg _))
  4428  	// cond: c < 0
  4429  	// result: (MOVWconst [0])
  4430  	for {
  4431  		c := auxIntToInt32(v.AuxInt)
  4432  		if v_0.Op != OpMIPSMOVBUreg || !(c < 0) {
  4433  			break
  4434  		}
  4435  		v.reset(OpMIPSMOVWconst)
  4436  		v.AuxInt = int32ToAuxInt(0)
  4437  		return true
  4438  	}
  4439  	// match: (SGTconst [c] (MOVHreg _))
  4440  	// cond: 0x7fff < c
  4441  	// result: (MOVWconst [1])
  4442  	for {
  4443  		c := auxIntToInt32(v.AuxInt)
  4444  		if v_0.Op != OpMIPSMOVHreg || !(0x7fff < c) {
  4445  			break
  4446  		}
  4447  		v.reset(OpMIPSMOVWconst)
  4448  		v.AuxInt = int32ToAuxInt(1)
  4449  		return true
  4450  	}
  4451  	// match: (SGTconst [c] (MOVHreg _))
  4452  	// cond: c <= -0x8000
  4453  	// result: (MOVWconst [0])
  4454  	for {
  4455  		c := auxIntToInt32(v.AuxInt)
  4456  		if v_0.Op != OpMIPSMOVHreg || !(c <= -0x8000) {
  4457  			break
  4458  		}
  4459  		v.reset(OpMIPSMOVWconst)
  4460  		v.AuxInt = int32ToAuxInt(0)
  4461  		return true
  4462  	}
  4463  	// match: (SGTconst [c] (MOVHUreg _))
  4464  	// cond: 0xffff < c
  4465  	// result: (MOVWconst [1])
  4466  	for {
  4467  		c := auxIntToInt32(v.AuxInt)
  4468  		if v_0.Op != OpMIPSMOVHUreg || !(0xffff < c) {
  4469  			break
  4470  		}
  4471  		v.reset(OpMIPSMOVWconst)
  4472  		v.AuxInt = int32ToAuxInt(1)
  4473  		return true
  4474  	}
  4475  	// match: (SGTconst [c] (MOVHUreg _))
  4476  	// cond: c < 0
  4477  	// result: (MOVWconst [0])
  4478  	for {
  4479  		c := auxIntToInt32(v.AuxInt)
  4480  		if v_0.Op != OpMIPSMOVHUreg || !(c < 0) {
  4481  			break
  4482  		}
  4483  		v.reset(OpMIPSMOVWconst)
  4484  		v.AuxInt = int32ToAuxInt(0)
  4485  		return true
  4486  	}
  4487  	// match: (SGTconst [c] (ANDconst [m] _))
  4488  	// cond: 0 <= m && m < c
  4489  	// result: (MOVWconst [1])
  4490  	for {
  4491  		c := auxIntToInt32(v.AuxInt)
  4492  		if v_0.Op != OpMIPSANDconst {
  4493  			break
  4494  		}
  4495  		m := auxIntToInt32(v_0.AuxInt)
  4496  		if !(0 <= m && m < c) {
  4497  			break
  4498  		}
  4499  		v.reset(OpMIPSMOVWconst)
  4500  		v.AuxInt = int32ToAuxInt(1)
  4501  		return true
  4502  	}
  4503  	// match: (SGTconst [c] (SRLconst _ [d]))
  4504  	// cond: 0 <= c && uint32(d) <= 31 && 0xffffffff>>uint32(d) < uint32(c)
  4505  	// result: (MOVWconst [1])
  4506  	for {
  4507  		c := auxIntToInt32(v.AuxInt)
  4508  		if v_0.Op != OpMIPSSRLconst {
  4509  			break
  4510  		}
  4511  		d := auxIntToInt32(v_0.AuxInt)
  4512  		if !(0 <= c && uint32(d) <= 31 && 0xffffffff>>uint32(d) < uint32(c)) {
  4513  			break
  4514  		}
  4515  		v.reset(OpMIPSMOVWconst)
  4516  		v.AuxInt = int32ToAuxInt(1)
  4517  		return true
  4518  	}
  4519  	return false
  4520  }
  4521  func rewriteValueMIPS_OpMIPSSGTzero(v *Value) bool {
  4522  	v_0 := v.Args[0]
  4523  	// match: (SGTzero (MOVWconst [d]))
  4524  	// cond: d > 0
  4525  	// result: (MOVWconst [1])
  4526  	for {
  4527  		if v_0.Op != OpMIPSMOVWconst {
  4528  			break
  4529  		}
  4530  		d := auxIntToInt32(v_0.AuxInt)
  4531  		if !(d > 0) {
  4532  			break
  4533  		}
  4534  		v.reset(OpMIPSMOVWconst)
  4535  		v.AuxInt = int32ToAuxInt(1)
  4536  		return true
  4537  	}
  4538  	// match: (SGTzero (MOVWconst [d]))
  4539  	// cond: d <= 0
  4540  	// result: (MOVWconst [0])
  4541  	for {
  4542  		if v_0.Op != OpMIPSMOVWconst {
  4543  			break
  4544  		}
  4545  		d := auxIntToInt32(v_0.AuxInt)
  4546  		if !(d <= 0) {
  4547  			break
  4548  		}
  4549  		v.reset(OpMIPSMOVWconst)
  4550  		v.AuxInt = int32ToAuxInt(0)
  4551  		return true
  4552  	}
  4553  	return false
  4554  }
  4555  func rewriteValueMIPS_OpMIPSSLL(v *Value) bool {
  4556  	v_1 := v.Args[1]
  4557  	v_0 := v.Args[0]
  4558  	// match: (SLL x (MOVWconst [c]))
  4559  	// result: (SLLconst x [c&31])
  4560  	for {
  4561  		x := v_0
  4562  		if v_1.Op != OpMIPSMOVWconst {
  4563  			break
  4564  		}
  4565  		c := auxIntToInt32(v_1.AuxInt)
  4566  		v.reset(OpMIPSSLLconst)
  4567  		v.AuxInt = int32ToAuxInt(c & 31)
  4568  		v.AddArg(x)
  4569  		return true
  4570  	}
  4571  	return false
  4572  }
  4573  func rewriteValueMIPS_OpMIPSSLLconst(v *Value) bool {
  4574  	v_0 := v.Args[0]
  4575  	// match: (SLLconst [c] (MOVWconst [d]))
  4576  	// result: (MOVWconst [d<<uint32(c)])
  4577  	for {
  4578  		c := auxIntToInt32(v.AuxInt)
  4579  		if v_0.Op != OpMIPSMOVWconst {
  4580  			break
  4581  		}
  4582  		d := auxIntToInt32(v_0.AuxInt)
  4583  		v.reset(OpMIPSMOVWconst)
  4584  		v.AuxInt = int32ToAuxInt(d << uint32(c))
  4585  		return true
  4586  	}
  4587  	return false
  4588  }
  4589  func rewriteValueMIPS_OpMIPSSRA(v *Value) bool {
  4590  	v_1 := v.Args[1]
  4591  	v_0 := v.Args[0]
  4592  	// match: (SRA x (MOVWconst [c]))
  4593  	// result: (SRAconst x [c&31])
  4594  	for {
  4595  		x := v_0
  4596  		if v_1.Op != OpMIPSMOVWconst {
  4597  			break
  4598  		}
  4599  		c := auxIntToInt32(v_1.AuxInt)
  4600  		v.reset(OpMIPSSRAconst)
  4601  		v.AuxInt = int32ToAuxInt(c & 31)
  4602  		v.AddArg(x)
  4603  		return true
  4604  	}
  4605  	return false
  4606  }
  4607  func rewriteValueMIPS_OpMIPSSRAconst(v *Value) bool {
  4608  	v_0 := v.Args[0]
  4609  	// match: (SRAconst [c] (MOVWconst [d]))
  4610  	// result: (MOVWconst [d>>uint32(c)])
  4611  	for {
  4612  		c := auxIntToInt32(v.AuxInt)
  4613  		if v_0.Op != OpMIPSMOVWconst {
  4614  			break
  4615  		}
  4616  		d := auxIntToInt32(v_0.AuxInt)
  4617  		v.reset(OpMIPSMOVWconst)
  4618  		v.AuxInt = int32ToAuxInt(d >> uint32(c))
  4619  		return true
  4620  	}
  4621  	return false
  4622  }
  4623  func rewriteValueMIPS_OpMIPSSRL(v *Value) bool {
  4624  	v_1 := v.Args[1]
  4625  	v_0 := v.Args[0]
  4626  	// match: (SRL x (MOVWconst [c]))
  4627  	// result: (SRLconst x [c&31])
  4628  	for {
  4629  		x := v_0
  4630  		if v_1.Op != OpMIPSMOVWconst {
  4631  			break
  4632  		}
  4633  		c := auxIntToInt32(v_1.AuxInt)
  4634  		v.reset(OpMIPSSRLconst)
  4635  		v.AuxInt = int32ToAuxInt(c & 31)
  4636  		v.AddArg(x)
  4637  		return true
  4638  	}
  4639  	return false
  4640  }
  4641  func rewriteValueMIPS_OpMIPSSRLconst(v *Value) bool {
  4642  	v_0 := v.Args[0]
  4643  	// match: (SRLconst [c] (MOVWconst [d]))
  4644  	// result: (MOVWconst [int32(uint32(d)>>uint32(c))])
  4645  	for {
  4646  		c := auxIntToInt32(v.AuxInt)
  4647  		if v_0.Op != OpMIPSMOVWconst {
  4648  			break
  4649  		}
  4650  		d := auxIntToInt32(v_0.AuxInt)
  4651  		v.reset(OpMIPSMOVWconst)
  4652  		v.AuxInt = int32ToAuxInt(int32(uint32(d) >> uint32(c)))
  4653  		return true
  4654  	}
  4655  	return false
  4656  }
  4657  func rewriteValueMIPS_OpMIPSSUB(v *Value) bool {
  4658  	v_1 := v.Args[1]
  4659  	v_0 := v.Args[0]
  4660  	// match: (SUB x (MOVWconst [c]))
  4661  	// result: (SUBconst [c] x)
  4662  	for {
  4663  		x := v_0
  4664  		if v_1.Op != OpMIPSMOVWconst {
  4665  			break
  4666  		}
  4667  		c := auxIntToInt32(v_1.AuxInt)
  4668  		v.reset(OpMIPSSUBconst)
  4669  		v.AuxInt = int32ToAuxInt(c)
  4670  		v.AddArg(x)
  4671  		return true
  4672  	}
  4673  	// match: (SUB x x)
  4674  	// result: (MOVWconst [0])
  4675  	for {
  4676  		x := v_0
  4677  		if x != v_1 {
  4678  			break
  4679  		}
  4680  		v.reset(OpMIPSMOVWconst)
  4681  		v.AuxInt = int32ToAuxInt(0)
  4682  		return true
  4683  	}
  4684  	// match: (SUB (MOVWconst [0]) x)
  4685  	// result: (NEG x)
  4686  	for {
  4687  		if v_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0.AuxInt) != 0 {
  4688  			break
  4689  		}
  4690  		x := v_1
  4691  		v.reset(OpMIPSNEG)
  4692  		v.AddArg(x)
  4693  		return true
  4694  	}
  4695  	return false
  4696  }
  4697  func rewriteValueMIPS_OpMIPSSUBconst(v *Value) bool {
  4698  	v_0 := v.Args[0]
  4699  	// match: (SUBconst [0] x)
  4700  	// result: x
  4701  	for {
  4702  		if auxIntToInt32(v.AuxInt) != 0 {
  4703  			break
  4704  		}
  4705  		x := v_0
  4706  		v.copyOf(x)
  4707  		return true
  4708  	}
  4709  	// match: (SUBconst [c] (MOVWconst [d]))
  4710  	// result: (MOVWconst [d-c])
  4711  	for {
  4712  		c := auxIntToInt32(v.AuxInt)
  4713  		if v_0.Op != OpMIPSMOVWconst {
  4714  			break
  4715  		}
  4716  		d := auxIntToInt32(v_0.AuxInt)
  4717  		v.reset(OpMIPSMOVWconst)
  4718  		v.AuxInt = int32ToAuxInt(d - c)
  4719  		return true
  4720  	}
  4721  	// match: (SUBconst [c] (SUBconst [d] x))
  4722  	// result: (ADDconst [-c-d] x)
  4723  	for {
  4724  		c := auxIntToInt32(v.AuxInt)
  4725  		if v_0.Op != OpMIPSSUBconst {
  4726  			break
  4727  		}
  4728  		d := auxIntToInt32(v_0.AuxInt)
  4729  		x := v_0.Args[0]
  4730  		v.reset(OpMIPSADDconst)
  4731  		v.AuxInt = int32ToAuxInt(-c - d)
  4732  		v.AddArg(x)
  4733  		return true
  4734  	}
  4735  	// match: (SUBconst [c] (ADDconst [d] x))
  4736  	// result: (ADDconst [-c+d] x)
  4737  	for {
  4738  		c := auxIntToInt32(v.AuxInt)
  4739  		if v_0.Op != OpMIPSADDconst {
  4740  			break
  4741  		}
  4742  		d := auxIntToInt32(v_0.AuxInt)
  4743  		x := v_0.Args[0]
  4744  		v.reset(OpMIPSADDconst)
  4745  		v.AuxInt = int32ToAuxInt(-c + d)
  4746  		v.AddArg(x)
  4747  		return true
  4748  	}
  4749  	return false
  4750  }
  4751  func rewriteValueMIPS_OpMIPSXOR(v *Value) bool {
  4752  	v_1 := v.Args[1]
  4753  	v_0 := v.Args[0]
  4754  	// match: (XOR x (MOVWconst [c]))
  4755  	// result: (XORconst [c] x)
  4756  	for {
  4757  		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
  4758  			x := v_0
  4759  			if v_1.Op != OpMIPSMOVWconst {
  4760  				continue
  4761  			}
  4762  			c := auxIntToInt32(v_1.AuxInt)
  4763  			v.reset(OpMIPSXORconst)
  4764  			v.AuxInt = int32ToAuxInt(c)
  4765  			v.AddArg(x)
  4766  			return true
  4767  		}
  4768  		break
  4769  	}
  4770  	// match: (XOR x x)
  4771  	// result: (MOVWconst [0])
  4772  	for {
  4773  		x := v_0
  4774  		if x != v_1 {
  4775  			break
  4776  		}
  4777  		v.reset(OpMIPSMOVWconst)
  4778  		v.AuxInt = int32ToAuxInt(0)
  4779  		return true
  4780  	}
  4781  	return false
  4782  }
  4783  func rewriteValueMIPS_OpMIPSXORconst(v *Value) bool {
  4784  	v_0 := v.Args[0]
  4785  	// match: (XORconst [0] x)
  4786  	// result: x
  4787  	for {
  4788  		if auxIntToInt32(v.AuxInt) != 0 {
  4789  			break
  4790  		}
  4791  		x := v_0
  4792  		v.copyOf(x)
  4793  		return true
  4794  	}
  4795  	// match: (XORconst [-1] x)
  4796  	// result: (NORconst [0] x)
  4797  	for {
  4798  		if auxIntToInt32(v.AuxInt) != -1 {
  4799  			break
  4800  		}
  4801  		x := v_0
  4802  		v.reset(OpMIPSNORconst)
  4803  		v.AuxInt = int32ToAuxInt(0)
  4804  		v.AddArg(x)
  4805  		return true
  4806  	}
  4807  	// match: (XORconst [c] (MOVWconst [d]))
  4808  	// result: (MOVWconst [c^d])
  4809  	for {
  4810  		c := auxIntToInt32(v.AuxInt)
  4811  		if v_0.Op != OpMIPSMOVWconst {
  4812  			break
  4813  		}
  4814  		d := auxIntToInt32(v_0.AuxInt)
  4815  		v.reset(OpMIPSMOVWconst)
  4816  		v.AuxInt = int32ToAuxInt(c ^ d)
  4817  		return true
  4818  	}
  4819  	// match: (XORconst [c] (XORconst [d] x))
  4820  	// result: (XORconst [c^d] x)
  4821  	for {
  4822  		c := auxIntToInt32(v.AuxInt)
  4823  		if v_0.Op != OpMIPSXORconst {
  4824  			break
  4825  		}
  4826  		d := auxIntToInt32(v_0.AuxInt)
  4827  		x := v_0.Args[0]
  4828  		v.reset(OpMIPSXORconst)
  4829  		v.AuxInt = int32ToAuxInt(c ^ d)
  4830  		v.AddArg(x)
  4831  		return true
  4832  	}
  4833  	return false
  4834  }
  4835  func rewriteValueMIPS_OpMod16(v *Value) bool {
  4836  	v_1 := v.Args[1]
  4837  	v_0 := v.Args[0]
  4838  	b := v.Block
  4839  	typ := &b.Func.Config.Types
  4840  	// match: (Mod16 x y)
  4841  	// result: (Select0 (DIV (SignExt16to32 x) (SignExt16to32 y)))
  4842  	for {
  4843  		x := v_0
  4844  		y := v_1
  4845  		v.reset(OpSelect0)
  4846  		v0 := b.NewValue0(v.Pos, OpMIPSDIV, types.NewTuple(typ.Int32, typ.Int32))
  4847  		v1 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  4848  		v1.AddArg(x)
  4849  		v2 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  4850  		v2.AddArg(y)
  4851  		v0.AddArg2(v1, v2)
  4852  		v.AddArg(v0)
  4853  		return true
  4854  	}
  4855  }
  4856  func rewriteValueMIPS_OpMod16u(v *Value) bool {
  4857  	v_1 := v.Args[1]
  4858  	v_0 := v.Args[0]
  4859  	b := v.Block
  4860  	typ := &b.Func.Config.Types
  4861  	// match: (Mod16u x y)
  4862  	// result: (Select0 (DIVU (ZeroExt16to32 x) (ZeroExt16to32 y)))
  4863  	for {
  4864  		x := v_0
  4865  		y := v_1
  4866  		v.reset(OpSelect0)
  4867  		v0 := b.NewValue0(v.Pos, OpMIPSDIVU, types.NewTuple(typ.UInt32, typ.UInt32))
  4868  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  4869  		v1.AddArg(x)
  4870  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  4871  		v2.AddArg(y)
  4872  		v0.AddArg2(v1, v2)
  4873  		v.AddArg(v0)
  4874  		return true
  4875  	}
  4876  }
  4877  func rewriteValueMIPS_OpMod32(v *Value) bool {
  4878  	v_1 := v.Args[1]
  4879  	v_0 := v.Args[0]
  4880  	b := v.Block
  4881  	typ := &b.Func.Config.Types
  4882  	// match: (Mod32 x y)
  4883  	// result: (Select0 (DIV x y))
  4884  	for {
  4885  		x := v_0
  4886  		y := v_1
  4887  		v.reset(OpSelect0)
  4888  		v0 := b.NewValue0(v.Pos, OpMIPSDIV, types.NewTuple(typ.Int32, typ.Int32))
  4889  		v0.AddArg2(x, y)
  4890  		v.AddArg(v0)
  4891  		return true
  4892  	}
  4893  }
  4894  func rewriteValueMIPS_OpMod32u(v *Value) bool {
  4895  	v_1 := v.Args[1]
  4896  	v_0 := v.Args[0]
  4897  	b := v.Block
  4898  	typ := &b.Func.Config.Types
  4899  	// match: (Mod32u x y)
  4900  	// result: (Select0 (DIVU x y))
  4901  	for {
  4902  		x := v_0
  4903  		y := v_1
  4904  		v.reset(OpSelect0)
  4905  		v0 := b.NewValue0(v.Pos, OpMIPSDIVU, types.NewTuple(typ.UInt32, typ.UInt32))
  4906  		v0.AddArg2(x, y)
  4907  		v.AddArg(v0)
  4908  		return true
  4909  	}
  4910  }
  4911  func rewriteValueMIPS_OpMod8(v *Value) bool {
  4912  	v_1 := v.Args[1]
  4913  	v_0 := v.Args[0]
  4914  	b := v.Block
  4915  	typ := &b.Func.Config.Types
  4916  	// match: (Mod8 x y)
  4917  	// result: (Select0 (DIV (SignExt8to32 x) (SignExt8to32 y)))
  4918  	for {
  4919  		x := v_0
  4920  		y := v_1
  4921  		v.reset(OpSelect0)
  4922  		v0 := b.NewValue0(v.Pos, OpMIPSDIV, types.NewTuple(typ.Int32, typ.Int32))
  4923  		v1 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  4924  		v1.AddArg(x)
  4925  		v2 := b.NewValue0(v.Pos, OpSignExt8to32, typ.Int32)
  4926  		v2.AddArg(y)
  4927  		v0.AddArg2(v1, v2)
  4928  		v.AddArg(v0)
  4929  		return true
  4930  	}
  4931  }
  4932  func rewriteValueMIPS_OpMod8u(v *Value) bool {
  4933  	v_1 := v.Args[1]
  4934  	v_0 := v.Args[0]
  4935  	b := v.Block
  4936  	typ := &b.Func.Config.Types
  4937  	// match: (Mod8u x y)
  4938  	// result: (Select0 (DIVU (ZeroExt8to32 x) (ZeroExt8to32 y)))
  4939  	for {
  4940  		x := v_0
  4941  		y := v_1
  4942  		v.reset(OpSelect0)
  4943  		v0 := b.NewValue0(v.Pos, OpMIPSDIVU, types.NewTuple(typ.UInt32, typ.UInt32))
  4944  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  4945  		v1.AddArg(x)
  4946  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  4947  		v2.AddArg(y)
  4948  		v0.AddArg2(v1, v2)
  4949  		v.AddArg(v0)
  4950  		return true
  4951  	}
  4952  }
  4953  func rewriteValueMIPS_OpMove(v *Value) bool {
  4954  	v_2 := v.Args[2]
  4955  	v_1 := v.Args[1]
  4956  	v_0 := v.Args[0]
  4957  	b := v.Block
  4958  	config := b.Func.Config
  4959  	typ := &b.Func.Config.Types
  4960  	// match: (Move [0] _ _ mem)
  4961  	// result: mem
  4962  	for {
  4963  		if auxIntToInt64(v.AuxInt) != 0 {
  4964  			break
  4965  		}
  4966  		mem := v_2
  4967  		v.copyOf(mem)
  4968  		return true
  4969  	}
  4970  	// match: (Move [1] dst src mem)
  4971  	// result: (MOVBstore dst (MOVBUload src mem) mem)
  4972  	for {
  4973  		if auxIntToInt64(v.AuxInt) != 1 {
  4974  			break
  4975  		}
  4976  		dst := v_0
  4977  		src := v_1
  4978  		mem := v_2
  4979  		v.reset(OpMIPSMOVBstore)
  4980  		v0 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  4981  		v0.AddArg2(src, mem)
  4982  		v.AddArg3(dst, v0, mem)
  4983  		return true
  4984  	}
  4985  	// match: (Move [2] {t} dst src mem)
  4986  	// cond: t.Alignment()%2 == 0
  4987  	// result: (MOVHstore dst (MOVHUload src mem) mem)
  4988  	for {
  4989  		if auxIntToInt64(v.AuxInt) != 2 {
  4990  			break
  4991  		}
  4992  		t := auxToType(v.Aux)
  4993  		dst := v_0
  4994  		src := v_1
  4995  		mem := v_2
  4996  		if !(t.Alignment()%2 == 0) {
  4997  			break
  4998  		}
  4999  		v.reset(OpMIPSMOVHstore)
  5000  		v0 := b.NewValue0(v.Pos, OpMIPSMOVHUload, typ.UInt16)
  5001  		v0.AddArg2(src, mem)
  5002  		v.AddArg3(dst, v0, mem)
  5003  		return true
  5004  	}
  5005  	// match: (Move [2] dst src mem)
  5006  	// result: (MOVBstore [1] dst (MOVBUload [1] src mem) (MOVBstore dst (MOVBUload src mem) mem))
  5007  	for {
  5008  		if auxIntToInt64(v.AuxInt) != 2 {
  5009  			break
  5010  		}
  5011  		dst := v_0
  5012  		src := v_1
  5013  		mem := v_2
  5014  		v.reset(OpMIPSMOVBstore)
  5015  		v.AuxInt = int32ToAuxInt(1)
  5016  		v0 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5017  		v0.AuxInt = int32ToAuxInt(1)
  5018  		v0.AddArg2(src, mem)
  5019  		v1 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  5020  		v2 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5021  		v2.AddArg2(src, mem)
  5022  		v1.AddArg3(dst, v2, mem)
  5023  		v.AddArg3(dst, v0, v1)
  5024  		return true
  5025  	}
  5026  	// match: (Move [4] {t} dst src mem)
  5027  	// cond: t.Alignment()%4 == 0
  5028  	// result: (MOVWstore dst (MOVWload src mem) mem)
  5029  	for {
  5030  		if auxIntToInt64(v.AuxInt) != 4 {
  5031  			break
  5032  		}
  5033  		t := auxToType(v.Aux)
  5034  		dst := v_0
  5035  		src := v_1
  5036  		mem := v_2
  5037  		if !(t.Alignment()%4 == 0) {
  5038  			break
  5039  		}
  5040  		v.reset(OpMIPSMOVWstore)
  5041  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5042  		v0.AddArg2(src, mem)
  5043  		v.AddArg3(dst, v0, mem)
  5044  		return true
  5045  	}
  5046  	// match: (Move [4] {t} dst src mem)
  5047  	// cond: t.Alignment()%2 == 0
  5048  	// result: (MOVHstore [2] dst (MOVHUload [2] src mem) (MOVHstore dst (MOVHUload src mem) mem))
  5049  	for {
  5050  		if auxIntToInt64(v.AuxInt) != 4 {
  5051  			break
  5052  		}
  5053  		t := auxToType(v.Aux)
  5054  		dst := v_0
  5055  		src := v_1
  5056  		mem := v_2
  5057  		if !(t.Alignment()%2 == 0) {
  5058  			break
  5059  		}
  5060  		v.reset(OpMIPSMOVHstore)
  5061  		v.AuxInt = int32ToAuxInt(2)
  5062  		v0 := b.NewValue0(v.Pos, OpMIPSMOVHUload, typ.UInt16)
  5063  		v0.AuxInt = int32ToAuxInt(2)
  5064  		v0.AddArg2(src, mem)
  5065  		v1 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  5066  		v2 := b.NewValue0(v.Pos, OpMIPSMOVHUload, typ.UInt16)
  5067  		v2.AddArg2(src, mem)
  5068  		v1.AddArg3(dst, v2, mem)
  5069  		v.AddArg3(dst, v0, v1)
  5070  		return true
  5071  	}
  5072  	// match: (Move [4] dst src mem)
  5073  	// result: (MOVBstore [3] dst (MOVBUload [3] src mem) (MOVBstore [2] dst (MOVBUload [2] src mem) (MOVBstore [1] dst (MOVBUload [1] src mem) (MOVBstore dst (MOVBUload src mem) mem))))
  5074  	for {
  5075  		if auxIntToInt64(v.AuxInt) != 4 {
  5076  			break
  5077  		}
  5078  		dst := v_0
  5079  		src := v_1
  5080  		mem := v_2
  5081  		v.reset(OpMIPSMOVBstore)
  5082  		v.AuxInt = int32ToAuxInt(3)
  5083  		v0 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5084  		v0.AuxInt = int32ToAuxInt(3)
  5085  		v0.AddArg2(src, mem)
  5086  		v1 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  5087  		v1.AuxInt = int32ToAuxInt(2)
  5088  		v2 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5089  		v2.AuxInt = int32ToAuxInt(2)
  5090  		v2.AddArg2(src, mem)
  5091  		v3 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  5092  		v3.AuxInt = int32ToAuxInt(1)
  5093  		v4 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5094  		v4.AuxInt = int32ToAuxInt(1)
  5095  		v4.AddArg2(src, mem)
  5096  		v5 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  5097  		v6 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5098  		v6.AddArg2(src, mem)
  5099  		v5.AddArg3(dst, v6, mem)
  5100  		v3.AddArg3(dst, v4, v5)
  5101  		v1.AddArg3(dst, v2, v3)
  5102  		v.AddArg3(dst, v0, v1)
  5103  		return true
  5104  	}
  5105  	// match: (Move [3] dst src mem)
  5106  	// result: (MOVBstore [2] dst (MOVBUload [2] src mem) (MOVBstore [1] dst (MOVBUload [1] src mem) (MOVBstore dst (MOVBUload src mem) mem)))
  5107  	for {
  5108  		if auxIntToInt64(v.AuxInt) != 3 {
  5109  			break
  5110  		}
  5111  		dst := v_0
  5112  		src := v_1
  5113  		mem := v_2
  5114  		v.reset(OpMIPSMOVBstore)
  5115  		v.AuxInt = int32ToAuxInt(2)
  5116  		v0 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5117  		v0.AuxInt = int32ToAuxInt(2)
  5118  		v0.AddArg2(src, mem)
  5119  		v1 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  5120  		v1.AuxInt = int32ToAuxInt(1)
  5121  		v2 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5122  		v2.AuxInt = int32ToAuxInt(1)
  5123  		v2.AddArg2(src, mem)
  5124  		v3 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  5125  		v4 := b.NewValue0(v.Pos, OpMIPSMOVBUload, typ.UInt8)
  5126  		v4.AddArg2(src, mem)
  5127  		v3.AddArg3(dst, v4, mem)
  5128  		v1.AddArg3(dst, v2, v3)
  5129  		v.AddArg3(dst, v0, v1)
  5130  		return true
  5131  	}
  5132  	// match: (Move [8] {t} dst src mem)
  5133  	// cond: t.Alignment()%4 == 0
  5134  	// result: (MOVWstore [4] dst (MOVWload [4] src mem) (MOVWstore dst (MOVWload src mem) mem))
  5135  	for {
  5136  		if auxIntToInt64(v.AuxInt) != 8 {
  5137  			break
  5138  		}
  5139  		t := auxToType(v.Aux)
  5140  		dst := v_0
  5141  		src := v_1
  5142  		mem := v_2
  5143  		if !(t.Alignment()%4 == 0) {
  5144  			break
  5145  		}
  5146  		v.reset(OpMIPSMOVWstore)
  5147  		v.AuxInt = int32ToAuxInt(4)
  5148  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5149  		v0.AuxInt = int32ToAuxInt(4)
  5150  		v0.AddArg2(src, mem)
  5151  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  5152  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5153  		v2.AddArg2(src, mem)
  5154  		v1.AddArg3(dst, v2, mem)
  5155  		v.AddArg3(dst, v0, v1)
  5156  		return true
  5157  	}
  5158  	// match: (Move [8] {t} dst src mem)
  5159  	// cond: t.Alignment()%2 == 0
  5160  	// result: (MOVHstore [6] dst (MOVHload [6] src mem) (MOVHstore [4] dst (MOVHload [4] src mem) (MOVHstore [2] dst (MOVHload [2] src mem) (MOVHstore dst (MOVHload src mem) mem))))
  5161  	for {
  5162  		if auxIntToInt64(v.AuxInt) != 8 {
  5163  			break
  5164  		}
  5165  		t := auxToType(v.Aux)
  5166  		dst := v_0
  5167  		src := v_1
  5168  		mem := v_2
  5169  		if !(t.Alignment()%2 == 0) {
  5170  			break
  5171  		}
  5172  		v.reset(OpMIPSMOVHstore)
  5173  		v.AuxInt = int32ToAuxInt(6)
  5174  		v0 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5175  		v0.AuxInt = int32ToAuxInt(6)
  5176  		v0.AddArg2(src, mem)
  5177  		v1 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  5178  		v1.AuxInt = int32ToAuxInt(4)
  5179  		v2 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5180  		v2.AuxInt = int32ToAuxInt(4)
  5181  		v2.AddArg2(src, mem)
  5182  		v3 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  5183  		v3.AuxInt = int32ToAuxInt(2)
  5184  		v4 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5185  		v4.AuxInt = int32ToAuxInt(2)
  5186  		v4.AddArg2(src, mem)
  5187  		v5 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  5188  		v6 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5189  		v6.AddArg2(src, mem)
  5190  		v5.AddArg3(dst, v6, mem)
  5191  		v3.AddArg3(dst, v4, v5)
  5192  		v1.AddArg3(dst, v2, v3)
  5193  		v.AddArg3(dst, v0, v1)
  5194  		return true
  5195  	}
  5196  	// match: (Move [6] {t} dst src mem)
  5197  	// cond: t.Alignment()%2 == 0
  5198  	// result: (MOVHstore [4] dst (MOVHload [4] src mem) (MOVHstore [2] dst (MOVHload [2] src mem) (MOVHstore dst (MOVHload src mem) mem)))
  5199  	for {
  5200  		if auxIntToInt64(v.AuxInt) != 6 {
  5201  			break
  5202  		}
  5203  		t := auxToType(v.Aux)
  5204  		dst := v_0
  5205  		src := v_1
  5206  		mem := v_2
  5207  		if !(t.Alignment()%2 == 0) {
  5208  			break
  5209  		}
  5210  		v.reset(OpMIPSMOVHstore)
  5211  		v.AuxInt = int32ToAuxInt(4)
  5212  		v0 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5213  		v0.AuxInt = int32ToAuxInt(4)
  5214  		v0.AddArg2(src, mem)
  5215  		v1 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  5216  		v1.AuxInt = int32ToAuxInt(2)
  5217  		v2 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5218  		v2.AuxInt = int32ToAuxInt(2)
  5219  		v2.AddArg2(src, mem)
  5220  		v3 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  5221  		v4 := b.NewValue0(v.Pos, OpMIPSMOVHload, typ.Int16)
  5222  		v4.AddArg2(src, mem)
  5223  		v3.AddArg3(dst, v4, mem)
  5224  		v1.AddArg3(dst, v2, v3)
  5225  		v.AddArg3(dst, v0, v1)
  5226  		return true
  5227  	}
  5228  	// match: (Move [12] {t} dst src mem)
  5229  	// cond: t.Alignment()%4 == 0
  5230  	// result: (MOVWstore [8] dst (MOVWload [8] src mem) (MOVWstore [4] dst (MOVWload [4] src mem) (MOVWstore dst (MOVWload src mem) mem)))
  5231  	for {
  5232  		if auxIntToInt64(v.AuxInt) != 12 {
  5233  			break
  5234  		}
  5235  		t := auxToType(v.Aux)
  5236  		dst := v_0
  5237  		src := v_1
  5238  		mem := v_2
  5239  		if !(t.Alignment()%4 == 0) {
  5240  			break
  5241  		}
  5242  		v.reset(OpMIPSMOVWstore)
  5243  		v.AuxInt = int32ToAuxInt(8)
  5244  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5245  		v0.AuxInt = int32ToAuxInt(8)
  5246  		v0.AddArg2(src, mem)
  5247  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  5248  		v1.AuxInt = int32ToAuxInt(4)
  5249  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5250  		v2.AuxInt = int32ToAuxInt(4)
  5251  		v2.AddArg2(src, mem)
  5252  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  5253  		v4 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5254  		v4.AddArg2(src, mem)
  5255  		v3.AddArg3(dst, v4, mem)
  5256  		v1.AddArg3(dst, v2, v3)
  5257  		v.AddArg3(dst, v0, v1)
  5258  		return true
  5259  	}
  5260  	// match: (Move [16] {t} dst src mem)
  5261  	// cond: t.Alignment()%4 == 0
  5262  	// result: (MOVWstore [12] dst (MOVWload [12] src mem) (MOVWstore [8] dst (MOVWload [8] src mem) (MOVWstore [4] dst (MOVWload [4] src mem) (MOVWstore dst (MOVWload src mem) mem))))
  5263  	for {
  5264  		if auxIntToInt64(v.AuxInt) != 16 {
  5265  			break
  5266  		}
  5267  		t := auxToType(v.Aux)
  5268  		dst := v_0
  5269  		src := v_1
  5270  		mem := v_2
  5271  		if !(t.Alignment()%4 == 0) {
  5272  			break
  5273  		}
  5274  		v.reset(OpMIPSMOVWstore)
  5275  		v.AuxInt = int32ToAuxInt(12)
  5276  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5277  		v0.AuxInt = int32ToAuxInt(12)
  5278  		v0.AddArg2(src, mem)
  5279  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  5280  		v1.AuxInt = int32ToAuxInt(8)
  5281  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5282  		v2.AuxInt = int32ToAuxInt(8)
  5283  		v2.AddArg2(src, mem)
  5284  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  5285  		v3.AuxInt = int32ToAuxInt(4)
  5286  		v4 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5287  		v4.AuxInt = int32ToAuxInt(4)
  5288  		v4.AddArg2(src, mem)
  5289  		v5 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  5290  		v6 := b.NewValue0(v.Pos, OpMIPSMOVWload, typ.UInt32)
  5291  		v6.AddArg2(src, mem)
  5292  		v5.AddArg3(dst, v6, mem)
  5293  		v3.AddArg3(dst, v4, v5)
  5294  		v1.AddArg3(dst, v2, v3)
  5295  		v.AddArg3(dst, v0, v1)
  5296  		return true
  5297  	}
  5298  	// match: (Move [s] {t} dst src mem)
  5299  	// cond: (s > 16 && logLargeCopy(v, s) || t.Alignment()%4 != 0)
  5300  	// result: (LoweredMove [int32(t.Alignment())] dst src (ADDconst <src.Type> src [int32(s-moveSize(t.Alignment(), config))]) mem)
  5301  	for {
  5302  		s := auxIntToInt64(v.AuxInt)
  5303  		t := auxToType(v.Aux)
  5304  		dst := v_0
  5305  		src := v_1
  5306  		mem := v_2
  5307  		if !(s > 16 && logLargeCopy(v, s) || t.Alignment()%4 != 0) {
  5308  			break
  5309  		}
  5310  		v.reset(OpMIPSLoweredMove)
  5311  		v.AuxInt = int32ToAuxInt(int32(t.Alignment()))
  5312  		v0 := b.NewValue0(v.Pos, OpMIPSADDconst, src.Type)
  5313  		v0.AuxInt = int32ToAuxInt(int32(s - moveSize(t.Alignment(), config)))
  5314  		v0.AddArg(src)
  5315  		v.AddArg4(dst, src, v0, mem)
  5316  		return true
  5317  	}
  5318  	return false
  5319  }
  5320  func rewriteValueMIPS_OpNeq16(v *Value) bool {
  5321  	v_1 := v.Args[1]
  5322  	v_0 := v.Args[0]
  5323  	b := v.Block
  5324  	typ := &b.Func.Config.Types
  5325  	// match: (Neq16 x y)
  5326  	// result: (SGTU (XOR (ZeroExt16to32 x) (ZeroExt16to32 y)) (MOVWconst [0]))
  5327  	for {
  5328  		x := v_0
  5329  		y := v_1
  5330  		v.reset(OpMIPSSGTU)
  5331  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  5332  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5333  		v1.AddArg(x)
  5334  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5335  		v2.AddArg(y)
  5336  		v0.AddArg2(v1, v2)
  5337  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5338  		v3.AuxInt = int32ToAuxInt(0)
  5339  		v.AddArg2(v0, v3)
  5340  		return true
  5341  	}
  5342  }
  5343  func rewriteValueMIPS_OpNeq32(v *Value) bool {
  5344  	v_1 := v.Args[1]
  5345  	v_0 := v.Args[0]
  5346  	b := v.Block
  5347  	typ := &b.Func.Config.Types
  5348  	// match: (Neq32 x y)
  5349  	// result: (SGTU (XOR x y) (MOVWconst [0]))
  5350  	for {
  5351  		x := v_0
  5352  		y := v_1
  5353  		v.reset(OpMIPSSGTU)
  5354  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  5355  		v0.AddArg2(x, y)
  5356  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5357  		v1.AuxInt = int32ToAuxInt(0)
  5358  		v.AddArg2(v0, v1)
  5359  		return true
  5360  	}
  5361  }
  5362  func rewriteValueMIPS_OpNeq32F(v *Value) bool {
  5363  	v_1 := v.Args[1]
  5364  	v_0 := v.Args[0]
  5365  	b := v.Block
  5366  	// match: (Neq32F x y)
  5367  	// result: (FPFlagFalse (CMPEQF x y))
  5368  	for {
  5369  		x := v_0
  5370  		y := v_1
  5371  		v.reset(OpMIPSFPFlagFalse)
  5372  		v0 := b.NewValue0(v.Pos, OpMIPSCMPEQF, types.TypeFlags)
  5373  		v0.AddArg2(x, y)
  5374  		v.AddArg(v0)
  5375  		return true
  5376  	}
  5377  }
  5378  func rewriteValueMIPS_OpNeq64F(v *Value) bool {
  5379  	v_1 := v.Args[1]
  5380  	v_0 := v.Args[0]
  5381  	b := v.Block
  5382  	// match: (Neq64F x y)
  5383  	// result: (FPFlagFalse (CMPEQD x y))
  5384  	for {
  5385  		x := v_0
  5386  		y := v_1
  5387  		v.reset(OpMIPSFPFlagFalse)
  5388  		v0 := b.NewValue0(v.Pos, OpMIPSCMPEQD, types.TypeFlags)
  5389  		v0.AddArg2(x, y)
  5390  		v.AddArg(v0)
  5391  		return true
  5392  	}
  5393  }
  5394  func rewriteValueMIPS_OpNeq8(v *Value) bool {
  5395  	v_1 := v.Args[1]
  5396  	v_0 := v.Args[0]
  5397  	b := v.Block
  5398  	typ := &b.Func.Config.Types
  5399  	// match: (Neq8 x y)
  5400  	// result: (SGTU (XOR (ZeroExt8to32 x) (ZeroExt8to32 y)) (MOVWconst [0]))
  5401  	for {
  5402  		x := v_0
  5403  		y := v_1
  5404  		v.reset(OpMIPSSGTU)
  5405  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  5406  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  5407  		v1.AddArg(x)
  5408  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  5409  		v2.AddArg(y)
  5410  		v0.AddArg2(v1, v2)
  5411  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5412  		v3.AuxInt = int32ToAuxInt(0)
  5413  		v.AddArg2(v0, v3)
  5414  		return true
  5415  	}
  5416  }
  5417  func rewriteValueMIPS_OpNeqPtr(v *Value) bool {
  5418  	v_1 := v.Args[1]
  5419  	v_0 := v.Args[0]
  5420  	b := v.Block
  5421  	typ := &b.Func.Config.Types
  5422  	// match: (NeqPtr x y)
  5423  	// result: (SGTU (XOR x y) (MOVWconst [0]))
  5424  	for {
  5425  		x := v_0
  5426  		y := v_1
  5427  		v.reset(OpMIPSSGTU)
  5428  		v0 := b.NewValue0(v.Pos, OpMIPSXOR, typ.UInt32)
  5429  		v0.AddArg2(x, y)
  5430  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5431  		v1.AuxInt = int32ToAuxInt(0)
  5432  		v.AddArg2(v0, v1)
  5433  		return true
  5434  	}
  5435  }
  5436  func rewriteValueMIPS_OpNot(v *Value) bool {
  5437  	v_0 := v.Args[0]
  5438  	// match: (Not x)
  5439  	// result: (XORconst [1] x)
  5440  	for {
  5441  		x := v_0
  5442  		v.reset(OpMIPSXORconst)
  5443  		v.AuxInt = int32ToAuxInt(1)
  5444  		v.AddArg(x)
  5445  		return true
  5446  	}
  5447  }
  5448  func rewriteValueMIPS_OpOffPtr(v *Value) bool {
  5449  	v_0 := v.Args[0]
  5450  	// match: (OffPtr [off] ptr:(SP))
  5451  	// result: (MOVWaddr [int32(off)] ptr)
  5452  	for {
  5453  		off := auxIntToInt64(v.AuxInt)
  5454  		ptr := v_0
  5455  		if ptr.Op != OpSP {
  5456  			break
  5457  		}
  5458  		v.reset(OpMIPSMOVWaddr)
  5459  		v.AuxInt = int32ToAuxInt(int32(off))
  5460  		v.AddArg(ptr)
  5461  		return true
  5462  	}
  5463  	// match: (OffPtr [off] ptr)
  5464  	// result: (ADDconst [int32(off)] ptr)
  5465  	for {
  5466  		off := auxIntToInt64(v.AuxInt)
  5467  		ptr := v_0
  5468  		v.reset(OpMIPSADDconst)
  5469  		v.AuxInt = int32ToAuxInt(int32(off))
  5470  		v.AddArg(ptr)
  5471  		return true
  5472  	}
  5473  }
  5474  func rewriteValueMIPS_OpPanicBounds(v *Value) bool {
  5475  	v_2 := v.Args[2]
  5476  	v_1 := v.Args[1]
  5477  	v_0 := v.Args[0]
  5478  	// match: (PanicBounds [kind] x y mem)
  5479  	// cond: boundsABI(kind) == 0
  5480  	// result: (LoweredPanicBoundsA [kind] x y mem)
  5481  	for {
  5482  		kind := auxIntToInt64(v.AuxInt)
  5483  		x := v_0
  5484  		y := v_1
  5485  		mem := v_2
  5486  		if !(boundsABI(kind) == 0) {
  5487  			break
  5488  		}
  5489  		v.reset(OpMIPSLoweredPanicBoundsA)
  5490  		v.AuxInt = int64ToAuxInt(kind)
  5491  		v.AddArg3(x, y, mem)
  5492  		return true
  5493  	}
  5494  	// match: (PanicBounds [kind] x y mem)
  5495  	// cond: boundsABI(kind) == 1
  5496  	// result: (LoweredPanicBoundsB [kind] x y mem)
  5497  	for {
  5498  		kind := auxIntToInt64(v.AuxInt)
  5499  		x := v_0
  5500  		y := v_1
  5501  		mem := v_2
  5502  		if !(boundsABI(kind) == 1) {
  5503  			break
  5504  		}
  5505  		v.reset(OpMIPSLoweredPanicBoundsB)
  5506  		v.AuxInt = int64ToAuxInt(kind)
  5507  		v.AddArg3(x, y, mem)
  5508  		return true
  5509  	}
  5510  	// match: (PanicBounds [kind] x y mem)
  5511  	// cond: boundsABI(kind) == 2
  5512  	// result: (LoweredPanicBoundsC [kind] x y mem)
  5513  	for {
  5514  		kind := auxIntToInt64(v.AuxInt)
  5515  		x := v_0
  5516  		y := v_1
  5517  		mem := v_2
  5518  		if !(boundsABI(kind) == 2) {
  5519  			break
  5520  		}
  5521  		v.reset(OpMIPSLoweredPanicBoundsC)
  5522  		v.AuxInt = int64ToAuxInt(kind)
  5523  		v.AddArg3(x, y, mem)
  5524  		return true
  5525  	}
  5526  	return false
  5527  }
  5528  func rewriteValueMIPS_OpPanicExtend(v *Value) bool {
  5529  	v_3 := v.Args[3]
  5530  	v_2 := v.Args[2]
  5531  	v_1 := v.Args[1]
  5532  	v_0 := v.Args[0]
  5533  	// match: (PanicExtend [kind] hi lo y mem)
  5534  	// cond: boundsABI(kind) == 0
  5535  	// result: (LoweredPanicExtendA [kind] hi lo y mem)
  5536  	for {
  5537  		kind := auxIntToInt64(v.AuxInt)
  5538  		hi := v_0
  5539  		lo := v_1
  5540  		y := v_2
  5541  		mem := v_3
  5542  		if !(boundsABI(kind) == 0) {
  5543  			break
  5544  		}
  5545  		v.reset(OpMIPSLoweredPanicExtendA)
  5546  		v.AuxInt = int64ToAuxInt(kind)
  5547  		v.AddArg4(hi, lo, y, mem)
  5548  		return true
  5549  	}
  5550  	// match: (PanicExtend [kind] hi lo y mem)
  5551  	// cond: boundsABI(kind) == 1
  5552  	// result: (LoweredPanicExtendB [kind] hi lo y mem)
  5553  	for {
  5554  		kind := auxIntToInt64(v.AuxInt)
  5555  		hi := v_0
  5556  		lo := v_1
  5557  		y := v_2
  5558  		mem := v_3
  5559  		if !(boundsABI(kind) == 1) {
  5560  			break
  5561  		}
  5562  		v.reset(OpMIPSLoweredPanicExtendB)
  5563  		v.AuxInt = int64ToAuxInt(kind)
  5564  		v.AddArg4(hi, lo, y, mem)
  5565  		return true
  5566  	}
  5567  	// match: (PanicExtend [kind] hi lo y mem)
  5568  	// cond: boundsABI(kind) == 2
  5569  	// result: (LoweredPanicExtendC [kind] hi lo y mem)
  5570  	for {
  5571  		kind := auxIntToInt64(v.AuxInt)
  5572  		hi := v_0
  5573  		lo := v_1
  5574  		y := v_2
  5575  		mem := v_3
  5576  		if !(boundsABI(kind) == 2) {
  5577  			break
  5578  		}
  5579  		v.reset(OpMIPSLoweredPanicExtendC)
  5580  		v.AuxInt = int64ToAuxInt(kind)
  5581  		v.AddArg4(hi, lo, y, mem)
  5582  		return true
  5583  	}
  5584  	return false
  5585  }
  5586  func rewriteValueMIPS_OpRotateLeft16(v *Value) bool {
  5587  	v_1 := v.Args[1]
  5588  	v_0 := v.Args[0]
  5589  	b := v.Block
  5590  	typ := &b.Func.Config.Types
  5591  	// match: (RotateLeft16 <t> x (MOVWconst [c]))
  5592  	// result: (Or16 (Lsh16x32 <t> x (MOVWconst [c&15])) (Rsh16Ux32 <t> x (MOVWconst [-c&15])))
  5593  	for {
  5594  		t := v.Type
  5595  		x := v_0
  5596  		if v_1.Op != OpMIPSMOVWconst {
  5597  			break
  5598  		}
  5599  		c := auxIntToInt32(v_1.AuxInt)
  5600  		v.reset(OpOr16)
  5601  		v0 := b.NewValue0(v.Pos, OpLsh16x32, t)
  5602  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5603  		v1.AuxInt = int32ToAuxInt(c & 15)
  5604  		v0.AddArg2(x, v1)
  5605  		v2 := b.NewValue0(v.Pos, OpRsh16Ux32, t)
  5606  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5607  		v3.AuxInt = int32ToAuxInt(-c & 15)
  5608  		v2.AddArg2(x, v3)
  5609  		v.AddArg2(v0, v2)
  5610  		return true
  5611  	}
  5612  	return false
  5613  }
  5614  func rewriteValueMIPS_OpRotateLeft32(v *Value) bool {
  5615  	v_1 := v.Args[1]
  5616  	v_0 := v.Args[0]
  5617  	b := v.Block
  5618  	typ := &b.Func.Config.Types
  5619  	// match: (RotateLeft32 <t> x (MOVWconst [c]))
  5620  	// result: (Or32 (Lsh32x32 <t> x (MOVWconst [c&31])) (Rsh32Ux32 <t> x (MOVWconst [-c&31])))
  5621  	for {
  5622  		t := v.Type
  5623  		x := v_0
  5624  		if v_1.Op != OpMIPSMOVWconst {
  5625  			break
  5626  		}
  5627  		c := auxIntToInt32(v_1.AuxInt)
  5628  		v.reset(OpOr32)
  5629  		v0 := b.NewValue0(v.Pos, OpLsh32x32, t)
  5630  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5631  		v1.AuxInt = int32ToAuxInt(c & 31)
  5632  		v0.AddArg2(x, v1)
  5633  		v2 := b.NewValue0(v.Pos, OpRsh32Ux32, t)
  5634  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5635  		v3.AuxInt = int32ToAuxInt(-c & 31)
  5636  		v2.AddArg2(x, v3)
  5637  		v.AddArg2(v0, v2)
  5638  		return true
  5639  	}
  5640  	return false
  5641  }
  5642  func rewriteValueMIPS_OpRotateLeft64(v *Value) bool {
  5643  	v_1 := v.Args[1]
  5644  	v_0 := v.Args[0]
  5645  	b := v.Block
  5646  	typ := &b.Func.Config.Types
  5647  	// match: (RotateLeft64 <t> x (MOVWconst [c]))
  5648  	// result: (Or64 (Lsh64x32 <t> x (MOVWconst [c&63])) (Rsh64Ux32 <t> x (MOVWconst [-c&63])))
  5649  	for {
  5650  		t := v.Type
  5651  		x := v_0
  5652  		if v_1.Op != OpMIPSMOVWconst {
  5653  			break
  5654  		}
  5655  		c := auxIntToInt32(v_1.AuxInt)
  5656  		v.reset(OpOr64)
  5657  		v0 := b.NewValue0(v.Pos, OpLsh64x32, t)
  5658  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5659  		v1.AuxInt = int32ToAuxInt(c & 63)
  5660  		v0.AddArg2(x, v1)
  5661  		v2 := b.NewValue0(v.Pos, OpRsh64Ux32, t)
  5662  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5663  		v3.AuxInt = int32ToAuxInt(-c & 63)
  5664  		v2.AddArg2(x, v3)
  5665  		v.AddArg2(v0, v2)
  5666  		return true
  5667  	}
  5668  	return false
  5669  }
  5670  func rewriteValueMIPS_OpRotateLeft8(v *Value) bool {
  5671  	v_1 := v.Args[1]
  5672  	v_0 := v.Args[0]
  5673  	b := v.Block
  5674  	typ := &b.Func.Config.Types
  5675  	// match: (RotateLeft8 <t> x (MOVWconst [c]))
  5676  	// result: (Or8 (Lsh8x32 <t> x (MOVWconst [c&7])) (Rsh8Ux32 <t> x (MOVWconst [-c&7])))
  5677  	for {
  5678  		t := v.Type
  5679  		x := v_0
  5680  		if v_1.Op != OpMIPSMOVWconst {
  5681  			break
  5682  		}
  5683  		c := auxIntToInt32(v_1.AuxInt)
  5684  		v.reset(OpOr8)
  5685  		v0 := b.NewValue0(v.Pos, OpLsh8x32, t)
  5686  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5687  		v1.AuxInt = int32ToAuxInt(c & 7)
  5688  		v0.AddArg2(x, v1)
  5689  		v2 := b.NewValue0(v.Pos, OpRsh8Ux32, t)
  5690  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5691  		v3.AuxInt = int32ToAuxInt(-c & 7)
  5692  		v2.AddArg2(x, v3)
  5693  		v.AddArg2(v0, v2)
  5694  		return true
  5695  	}
  5696  	return false
  5697  }
  5698  func rewriteValueMIPS_OpRsh16Ux16(v *Value) bool {
  5699  	v_1 := v.Args[1]
  5700  	v_0 := v.Args[0]
  5701  	b := v.Block
  5702  	typ := &b.Func.Config.Types
  5703  	// match: (Rsh16Ux16 <t> x y)
  5704  	// result: (CMOVZ (SRL <t> (ZeroExt16to32 x) (ZeroExt16to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt16to32 y)))
  5705  	for {
  5706  		t := v.Type
  5707  		x := v_0
  5708  		y := v_1
  5709  		v.reset(OpMIPSCMOVZ)
  5710  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  5711  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5712  		v1.AddArg(x)
  5713  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5714  		v2.AddArg(y)
  5715  		v0.AddArg2(v1, v2)
  5716  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5717  		v3.AuxInt = int32ToAuxInt(0)
  5718  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5719  		v4.AuxInt = int32ToAuxInt(32)
  5720  		v4.AddArg(v2)
  5721  		v.AddArg3(v0, v3, v4)
  5722  		return true
  5723  	}
  5724  }
  5725  func rewriteValueMIPS_OpRsh16Ux32(v *Value) bool {
  5726  	v_1 := v.Args[1]
  5727  	v_0 := v.Args[0]
  5728  	b := v.Block
  5729  	typ := &b.Func.Config.Types
  5730  	// match: (Rsh16Ux32 <t> x y)
  5731  	// result: (CMOVZ (SRL <t> (ZeroExt16to32 x) y) (MOVWconst [0]) (SGTUconst [32] y))
  5732  	for {
  5733  		t := v.Type
  5734  		x := v_0
  5735  		y := v_1
  5736  		v.reset(OpMIPSCMOVZ)
  5737  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  5738  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5739  		v1.AddArg(x)
  5740  		v0.AddArg2(v1, y)
  5741  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5742  		v2.AuxInt = int32ToAuxInt(0)
  5743  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5744  		v3.AuxInt = int32ToAuxInt(32)
  5745  		v3.AddArg(y)
  5746  		v.AddArg3(v0, v2, v3)
  5747  		return true
  5748  	}
  5749  }
  5750  func rewriteValueMIPS_OpRsh16Ux64(v *Value) bool {
  5751  	v_1 := v.Args[1]
  5752  	v_0 := v.Args[0]
  5753  	b := v.Block
  5754  	typ := &b.Func.Config.Types
  5755  	// match: (Rsh16Ux64 x (Const64 [c]))
  5756  	// cond: uint32(c) < 16
  5757  	// result: (SRLconst (SLLconst <typ.UInt32> x [16]) [int32(c+16)])
  5758  	for {
  5759  		x := v_0
  5760  		if v_1.Op != OpConst64 {
  5761  			break
  5762  		}
  5763  		c := auxIntToInt64(v_1.AuxInt)
  5764  		if !(uint32(c) < 16) {
  5765  			break
  5766  		}
  5767  		v.reset(OpMIPSSRLconst)
  5768  		v.AuxInt = int32ToAuxInt(int32(c + 16))
  5769  		v0 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
  5770  		v0.AuxInt = int32ToAuxInt(16)
  5771  		v0.AddArg(x)
  5772  		v.AddArg(v0)
  5773  		return true
  5774  	}
  5775  	// match: (Rsh16Ux64 _ (Const64 [c]))
  5776  	// cond: uint32(c) >= 16
  5777  	// result: (MOVWconst [0])
  5778  	for {
  5779  		if v_1.Op != OpConst64 {
  5780  			break
  5781  		}
  5782  		c := auxIntToInt64(v_1.AuxInt)
  5783  		if !(uint32(c) >= 16) {
  5784  			break
  5785  		}
  5786  		v.reset(OpMIPSMOVWconst)
  5787  		v.AuxInt = int32ToAuxInt(0)
  5788  		return true
  5789  	}
  5790  	return false
  5791  }
  5792  func rewriteValueMIPS_OpRsh16Ux8(v *Value) bool {
  5793  	v_1 := v.Args[1]
  5794  	v_0 := v.Args[0]
  5795  	b := v.Block
  5796  	typ := &b.Func.Config.Types
  5797  	// match: (Rsh16Ux8 <t> x y)
  5798  	// result: (CMOVZ (SRL <t> (ZeroExt16to32 x) (ZeroExt8to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt8to32 y)))
  5799  	for {
  5800  		t := v.Type
  5801  		x := v_0
  5802  		y := v_1
  5803  		v.reset(OpMIPSCMOVZ)
  5804  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  5805  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5806  		v1.AddArg(x)
  5807  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  5808  		v2.AddArg(y)
  5809  		v0.AddArg2(v1, v2)
  5810  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5811  		v3.AuxInt = int32ToAuxInt(0)
  5812  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5813  		v4.AuxInt = int32ToAuxInt(32)
  5814  		v4.AddArg(v2)
  5815  		v.AddArg3(v0, v3, v4)
  5816  		return true
  5817  	}
  5818  }
  5819  func rewriteValueMIPS_OpRsh16x16(v *Value) bool {
  5820  	v_1 := v.Args[1]
  5821  	v_0 := v.Args[0]
  5822  	b := v.Block
  5823  	typ := &b.Func.Config.Types
  5824  	// match: (Rsh16x16 x y)
  5825  	// result: (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> (ZeroExt16to32 y) (MOVWconst [31]) (SGTUconst [32] (ZeroExt16to32 y))))
  5826  	for {
  5827  		x := v_0
  5828  		y := v_1
  5829  		v.reset(OpMIPSSRA)
  5830  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  5831  		v0.AddArg(x)
  5832  		v1 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  5833  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5834  		v2.AddArg(y)
  5835  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5836  		v3.AuxInt = int32ToAuxInt(31)
  5837  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5838  		v4.AuxInt = int32ToAuxInt(32)
  5839  		v4.AddArg(v2)
  5840  		v1.AddArg3(v2, v3, v4)
  5841  		v.AddArg2(v0, v1)
  5842  		return true
  5843  	}
  5844  }
  5845  func rewriteValueMIPS_OpRsh16x32(v *Value) bool {
  5846  	v_1 := v.Args[1]
  5847  	v_0 := v.Args[0]
  5848  	b := v.Block
  5849  	typ := &b.Func.Config.Types
  5850  	// match: (Rsh16x32 x y)
  5851  	// result: (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> y (MOVWconst [31]) (SGTUconst [32] y)))
  5852  	for {
  5853  		x := v_0
  5854  		y := v_1
  5855  		v.reset(OpMIPSSRA)
  5856  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  5857  		v0.AddArg(x)
  5858  		v1 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  5859  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5860  		v2.AuxInt = int32ToAuxInt(31)
  5861  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5862  		v3.AuxInt = int32ToAuxInt(32)
  5863  		v3.AddArg(y)
  5864  		v1.AddArg3(y, v2, v3)
  5865  		v.AddArg2(v0, v1)
  5866  		return true
  5867  	}
  5868  }
  5869  func rewriteValueMIPS_OpRsh16x64(v *Value) bool {
  5870  	v_1 := v.Args[1]
  5871  	v_0 := v.Args[0]
  5872  	b := v.Block
  5873  	typ := &b.Func.Config.Types
  5874  	// match: (Rsh16x64 x (Const64 [c]))
  5875  	// cond: uint32(c) < 16
  5876  	// result: (SRAconst (SLLconst <typ.UInt32> x [16]) [int32(c+16)])
  5877  	for {
  5878  		x := v_0
  5879  		if v_1.Op != OpConst64 {
  5880  			break
  5881  		}
  5882  		c := auxIntToInt64(v_1.AuxInt)
  5883  		if !(uint32(c) < 16) {
  5884  			break
  5885  		}
  5886  		v.reset(OpMIPSSRAconst)
  5887  		v.AuxInt = int32ToAuxInt(int32(c + 16))
  5888  		v0 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
  5889  		v0.AuxInt = int32ToAuxInt(16)
  5890  		v0.AddArg(x)
  5891  		v.AddArg(v0)
  5892  		return true
  5893  	}
  5894  	// match: (Rsh16x64 x (Const64 [c]))
  5895  	// cond: uint32(c) >= 16
  5896  	// result: (SRAconst (SLLconst <typ.UInt32> x [16]) [31])
  5897  	for {
  5898  		x := v_0
  5899  		if v_1.Op != OpConst64 {
  5900  			break
  5901  		}
  5902  		c := auxIntToInt64(v_1.AuxInt)
  5903  		if !(uint32(c) >= 16) {
  5904  			break
  5905  		}
  5906  		v.reset(OpMIPSSRAconst)
  5907  		v.AuxInt = int32ToAuxInt(31)
  5908  		v0 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
  5909  		v0.AuxInt = int32ToAuxInt(16)
  5910  		v0.AddArg(x)
  5911  		v.AddArg(v0)
  5912  		return true
  5913  	}
  5914  	return false
  5915  }
  5916  func rewriteValueMIPS_OpRsh16x8(v *Value) bool {
  5917  	v_1 := v.Args[1]
  5918  	v_0 := v.Args[0]
  5919  	b := v.Block
  5920  	typ := &b.Func.Config.Types
  5921  	// match: (Rsh16x8 x y)
  5922  	// result: (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> (ZeroExt8to32 y) (MOVWconst [31]) (SGTUconst [32] (ZeroExt8to32 y))))
  5923  	for {
  5924  		x := v_0
  5925  		y := v_1
  5926  		v.reset(OpMIPSSRA)
  5927  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  5928  		v0.AddArg(x)
  5929  		v1 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  5930  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  5931  		v2.AddArg(y)
  5932  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5933  		v3.AuxInt = int32ToAuxInt(31)
  5934  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5935  		v4.AuxInt = int32ToAuxInt(32)
  5936  		v4.AddArg(v2)
  5937  		v1.AddArg3(v2, v3, v4)
  5938  		v.AddArg2(v0, v1)
  5939  		return true
  5940  	}
  5941  }
  5942  func rewriteValueMIPS_OpRsh32Ux16(v *Value) bool {
  5943  	v_1 := v.Args[1]
  5944  	v_0 := v.Args[0]
  5945  	b := v.Block
  5946  	typ := &b.Func.Config.Types
  5947  	// match: (Rsh32Ux16 <t> x y)
  5948  	// result: (CMOVZ (SRL <t> x (ZeroExt16to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt16to32 y)))
  5949  	for {
  5950  		t := v.Type
  5951  		x := v_0
  5952  		y := v_1
  5953  		v.reset(OpMIPSCMOVZ)
  5954  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  5955  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  5956  		v1.AddArg(y)
  5957  		v0.AddArg2(x, v1)
  5958  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5959  		v2.AuxInt = int32ToAuxInt(0)
  5960  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5961  		v3.AuxInt = int32ToAuxInt(32)
  5962  		v3.AddArg(v1)
  5963  		v.AddArg3(v0, v2, v3)
  5964  		return true
  5965  	}
  5966  }
  5967  func rewriteValueMIPS_OpRsh32Ux32(v *Value) bool {
  5968  	v_1 := v.Args[1]
  5969  	v_0 := v.Args[0]
  5970  	b := v.Block
  5971  	typ := &b.Func.Config.Types
  5972  	// match: (Rsh32Ux32 <t> x y)
  5973  	// result: (CMOVZ (SRL <t> x y) (MOVWconst [0]) (SGTUconst [32] y))
  5974  	for {
  5975  		t := v.Type
  5976  		x := v_0
  5977  		y := v_1
  5978  		v.reset(OpMIPSCMOVZ)
  5979  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  5980  		v0.AddArg2(x, y)
  5981  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  5982  		v1.AuxInt = int32ToAuxInt(0)
  5983  		v2 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  5984  		v2.AuxInt = int32ToAuxInt(32)
  5985  		v2.AddArg(y)
  5986  		v.AddArg3(v0, v1, v2)
  5987  		return true
  5988  	}
  5989  }
  5990  func rewriteValueMIPS_OpRsh32Ux64(v *Value) bool {
  5991  	v_1 := v.Args[1]
  5992  	v_0 := v.Args[0]
  5993  	// match: (Rsh32Ux64 x (Const64 [c]))
  5994  	// cond: uint32(c) < 32
  5995  	// result: (SRLconst x [int32(c)])
  5996  	for {
  5997  		x := v_0
  5998  		if v_1.Op != OpConst64 {
  5999  			break
  6000  		}
  6001  		c := auxIntToInt64(v_1.AuxInt)
  6002  		if !(uint32(c) < 32) {
  6003  			break
  6004  		}
  6005  		v.reset(OpMIPSSRLconst)
  6006  		v.AuxInt = int32ToAuxInt(int32(c))
  6007  		v.AddArg(x)
  6008  		return true
  6009  	}
  6010  	// match: (Rsh32Ux64 _ (Const64 [c]))
  6011  	// cond: uint32(c) >= 32
  6012  	// result: (MOVWconst [0])
  6013  	for {
  6014  		if v_1.Op != OpConst64 {
  6015  			break
  6016  		}
  6017  		c := auxIntToInt64(v_1.AuxInt)
  6018  		if !(uint32(c) >= 32) {
  6019  			break
  6020  		}
  6021  		v.reset(OpMIPSMOVWconst)
  6022  		v.AuxInt = int32ToAuxInt(0)
  6023  		return true
  6024  	}
  6025  	return false
  6026  }
  6027  func rewriteValueMIPS_OpRsh32Ux8(v *Value) bool {
  6028  	v_1 := v.Args[1]
  6029  	v_0 := v.Args[0]
  6030  	b := v.Block
  6031  	typ := &b.Func.Config.Types
  6032  	// match: (Rsh32Ux8 <t> x y)
  6033  	// result: (CMOVZ (SRL <t> x (ZeroExt8to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt8to32 y)))
  6034  	for {
  6035  		t := v.Type
  6036  		x := v_0
  6037  		y := v_1
  6038  		v.reset(OpMIPSCMOVZ)
  6039  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  6040  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6041  		v1.AddArg(y)
  6042  		v0.AddArg2(x, v1)
  6043  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6044  		v2.AuxInt = int32ToAuxInt(0)
  6045  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6046  		v3.AuxInt = int32ToAuxInt(32)
  6047  		v3.AddArg(v1)
  6048  		v.AddArg3(v0, v2, v3)
  6049  		return true
  6050  	}
  6051  }
  6052  func rewriteValueMIPS_OpRsh32x16(v *Value) bool {
  6053  	v_1 := v.Args[1]
  6054  	v_0 := v.Args[0]
  6055  	b := v.Block
  6056  	typ := &b.Func.Config.Types
  6057  	// match: (Rsh32x16 x y)
  6058  	// result: (SRA x ( CMOVZ <typ.UInt32> (ZeroExt16to32 y) (MOVWconst [31]) (SGTUconst [32] (ZeroExt16to32 y))))
  6059  	for {
  6060  		x := v_0
  6061  		y := v_1
  6062  		v.reset(OpMIPSSRA)
  6063  		v0 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  6064  		v1 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  6065  		v1.AddArg(y)
  6066  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6067  		v2.AuxInt = int32ToAuxInt(31)
  6068  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6069  		v3.AuxInt = int32ToAuxInt(32)
  6070  		v3.AddArg(v1)
  6071  		v0.AddArg3(v1, v2, v3)
  6072  		v.AddArg2(x, v0)
  6073  		return true
  6074  	}
  6075  }
  6076  func rewriteValueMIPS_OpRsh32x32(v *Value) bool {
  6077  	v_1 := v.Args[1]
  6078  	v_0 := v.Args[0]
  6079  	b := v.Block
  6080  	typ := &b.Func.Config.Types
  6081  	// match: (Rsh32x32 x y)
  6082  	// result: (SRA x ( CMOVZ <typ.UInt32> y (MOVWconst [31]) (SGTUconst [32] y)))
  6083  	for {
  6084  		x := v_0
  6085  		y := v_1
  6086  		v.reset(OpMIPSSRA)
  6087  		v0 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  6088  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6089  		v1.AuxInt = int32ToAuxInt(31)
  6090  		v2 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6091  		v2.AuxInt = int32ToAuxInt(32)
  6092  		v2.AddArg(y)
  6093  		v0.AddArg3(y, v1, v2)
  6094  		v.AddArg2(x, v0)
  6095  		return true
  6096  	}
  6097  }
  6098  func rewriteValueMIPS_OpRsh32x64(v *Value) bool {
  6099  	v_1 := v.Args[1]
  6100  	v_0 := v.Args[0]
  6101  	// match: (Rsh32x64 x (Const64 [c]))
  6102  	// cond: uint32(c) < 32
  6103  	// result: (SRAconst x [int32(c)])
  6104  	for {
  6105  		x := v_0
  6106  		if v_1.Op != OpConst64 {
  6107  			break
  6108  		}
  6109  		c := auxIntToInt64(v_1.AuxInt)
  6110  		if !(uint32(c) < 32) {
  6111  			break
  6112  		}
  6113  		v.reset(OpMIPSSRAconst)
  6114  		v.AuxInt = int32ToAuxInt(int32(c))
  6115  		v.AddArg(x)
  6116  		return true
  6117  	}
  6118  	// match: (Rsh32x64 x (Const64 [c]))
  6119  	// cond: uint32(c) >= 32
  6120  	// result: (SRAconst x [31])
  6121  	for {
  6122  		x := v_0
  6123  		if v_1.Op != OpConst64 {
  6124  			break
  6125  		}
  6126  		c := auxIntToInt64(v_1.AuxInt)
  6127  		if !(uint32(c) >= 32) {
  6128  			break
  6129  		}
  6130  		v.reset(OpMIPSSRAconst)
  6131  		v.AuxInt = int32ToAuxInt(31)
  6132  		v.AddArg(x)
  6133  		return true
  6134  	}
  6135  	return false
  6136  }
  6137  func rewriteValueMIPS_OpRsh32x8(v *Value) bool {
  6138  	v_1 := v.Args[1]
  6139  	v_0 := v.Args[0]
  6140  	b := v.Block
  6141  	typ := &b.Func.Config.Types
  6142  	// match: (Rsh32x8 x y)
  6143  	// result: (SRA x ( CMOVZ <typ.UInt32> (ZeroExt8to32 y) (MOVWconst [31]) (SGTUconst [32] (ZeroExt8to32 y))))
  6144  	for {
  6145  		x := v_0
  6146  		y := v_1
  6147  		v.reset(OpMIPSSRA)
  6148  		v0 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  6149  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6150  		v1.AddArg(y)
  6151  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6152  		v2.AuxInt = int32ToAuxInt(31)
  6153  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6154  		v3.AuxInt = int32ToAuxInt(32)
  6155  		v3.AddArg(v1)
  6156  		v0.AddArg3(v1, v2, v3)
  6157  		v.AddArg2(x, v0)
  6158  		return true
  6159  	}
  6160  }
  6161  func rewriteValueMIPS_OpRsh8Ux16(v *Value) bool {
  6162  	v_1 := v.Args[1]
  6163  	v_0 := v.Args[0]
  6164  	b := v.Block
  6165  	typ := &b.Func.Config.Types
  6166  	// match: (Rsh8Ux16 <t> x y)
  6167  	// result: (CMOVZ (SRL <t> (ZeroExt8to32 x) (ZeroExt16to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt16to32 y)))
  6168  	for {
  6169  		t := v.Type
  6170  		x := v_0
  6171  		y := v_1
  6172  		v.reset(OpMIPSCMOVZ)
  6173  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  6174  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6175  		v1.AddArg(x)
  6176  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  6177  		v2.AddArg(y)
  6178  		v0.AddArg2(v1, v2)
  6179  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6180  		v3.AuxInt = int32ToAuxInt(0)
  6181  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6182  		v4.AuxInt = int32ToAuxInt(32)
  6183  		v4.AddArg(v2)
  6184  		v.AddArg3(v0, v3, v4)
  6185  		return true
  6186  	}
  6187  }
  6188  func rewriteValueMIPS_OpRsh8Ux32(v *Value) bool {
  6189  	v_1 := v.Args[1]
  6190  	v_0 := v.Args[0]
  6191  	b := v.Block
  6192  	typ := &b.Func.Config.Types
  6193  	// match: (Rsh8Ux32 <t> x y)
  6194  	// result: (CMOVZ (SRL <t> (ZeroExt8to32 x) y) (MOVWconst [0]) (SGTUconst [32] y))
  6195  	for {
  6196  		t := v.Type
  6197  		x := v_0
  6198  		y := v_1
  6199  		v.reset(OpMIPSCMOVZ)
  6200  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  6201  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6202  		v1.AddArg(x)
  6203  		v0.AddArg2(v1, y)
  6204  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6205  		v2.AuxInt = int32ToAuxInt(0)
  6206  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6207  		v3.AuxInt = int32ToAuxInt(32)
  6208  		v3.AddArg(y)
  6209  		v.AddArg3(v0, v2, v3)
  6210  		return true
  6211  	}
  6212  }
  6213  func rewriteValueMIPS_OpRsh8Ux64(v *Value) bool {
  6214  	v_1 := v.Args[1]
  6215  	v_0 := v.Args[0]
  6216  	b := v.Block
  6217  	typ := &b.Func.Config.Types
  6218  	// match: (Rsh8Ux64 x (Const64 [c]))
  6219  	// cond: uint32(c) < 8
  6220  	// result: (SRLconst (SLLconst <typ.UInt32> x [24]) [int32(c+24)])
  6221  	for {
  6222  		x := v_0
  6223  		if v_1.Op != OpConst64 {
  6224  			break
  6225  		}
  6226  		c := auxIntToInt64(v_1.AuxInt)
  6227  		if !(uint32(c) < 8) {
  6228  			break
  6229  		}
  6230  		v.reset(OpMIPSSRLconst)
  6231  		v.AuxInt = int32ToAuxInt(int32(c + 24))
  6232  		v0 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
  6233  		v0.AuxInt = int32ToAuxInt(24)
  6234  		v0.AddArg(x)
  6235  		v.AddArg(v0)
  6236  		return true
  6237  	}
  6238  	// match: (Rsh8Ux64 _ (Const64 [c]))
  6239  	// cond: uint32(c) >= 8
  6240  	// result: (MOVWconst [0])
  6241  	for {
  6242  		if v_1.Op != OpConst64 {
  6243  			break
  6244  		}
  6245  		c := auxIntToInt64(v_1.AuxInt)
  6246  		if !(uint32(c) >= 8) {
  6247  			break
  6248  		}
  6249  		v.reset(OpMIPSMOVWconst)
  6250  		v.AuxInt = int32ToAuxInt(0)
  6251  		return true
  6252  	}
  6253  	return false
  6254  }
  6255  func rewriteValueMIPS_OpRsh8Ux8(v *Value) bool {
  6256  	v_1 := v.Args[1]
  6257  	v_0 := v.Args[0]
  6258  	b := v.Block
  6259  	typ := &b.Func.Config.Types
  6260  	// match: (Rsh8Ux8 <t> x y)
  6261  	// result: (CMOVZ (SRL <t> (ZeroExt8to32 x) (ZeroExt8to32 y) ) (MOVWconst [0]) (SGTUconst [32] (ZeroExt8to32 y)))
  6262  	for {
  6263  		t := v.Type
  6264  		x := v_0
  6265  		y := v_1
  6266  		v.reset(OpMIPSCMOVZ)
  6267  		v0 := b.NewValue0(v.Pos, OpMIPSSRL, t)
  6268  		v1 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6269  		v1.AddArg(x)
  6270  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6271  		v2.AddArg(y)
  6272  		v0.AddArg2(v1, v2)
  6273  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6274  		v3.AuxInt = int32ToAuxInt(0)
  6275  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6276  		v4.AuxInt = int32ToAuxInt(32)
  6277  		v4.AddArg(v2)
  6278  		v.AddArg3(v0, v3, v4)
  6279  		return true
  6280  	}
  6281  }
  6282  func rewriteValueMIPS_OpRsh8x16(v *Value) bool {
  6283  	v_1 := v.Args[1]
  6284  	v_0 := v.Args[0]
  6285  	b := v.Block
  6286  	typ := &b.Func.Config.Types
  6287  	// match: (Rsh8x16 x y)
  6288  	// result: (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> (ZeroExt16to32 y) (MOVWconst [31]) (SGTUconst [32] (ZeroExt16to32 y))))
  6289  	for {
  6290  		x := v_0
  6291  		y := v_1
  6292  		v.reset(OpMIPSSRA)
  6293  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  6294  		v0.AddArg(x)
  6295  		v1 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  6296  		v2 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
  6297  		v2.AddArg(y)
  6298  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6299  		v3.AuxInt = int32ToAuxInt(31)
  6300  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6301  		v4.AuxInt = int32ToAuxInt(32)
  6302  		v4.AddArg(v2)
  6303  		v1.AddArg3(v2, v3, v4)
  6304  		v.AddArg2(v0, v1)
  6305  		return true
  6306  	}
  6307  }
  6308  func rewriteValueMIPS_OpRsh8x32(v *Value) bool {
  6309  	v_1 := v.Args[1]
  6310  	v_0 := v.Args[0]
  6311  	b := v.Block
  6312  	typ := &b.Func.Config.Types
  6313  	// match: (Rsh8x32 x y)
  6314  	// result: (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> y (MOVWconst [31]) (SGTUconst [32] y)))
  6315  	for {
  6316  		x := v_0
  6317  		y := v_1
  6318  		v.reset(OpMIPSSRA)
  6319  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  6320  		v0.AddArg(x)
  6321  		v1 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  6322  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6323  		v2.AuxInt = int32ToAuxInt(31)
  6324  		v3 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6325  		v3.AuxInt = int32ToAuxInt(32)
  6326  		v3.AddArg(y)
  6327  		v1.AddArg3(y, v2, v3)
  6328  		v.AddArg2(v0, v1)
  6329  		return true
  6330  	}
  6331  }
  6332  func rewriteValueMIPS_OpRsh8x64(v *Value) bool {
  6333  	v_1 := v.Args[1]
  6334  	v_0 := v.Args[0]
  6335  	b := v.Block
  6336  	typ := &b.Func.Config.Types
  6337  	// match: (Rsh8x64 x (Const64 [c]))
  6338  	// cond: uint32(c) < 8
  6339  	// result: (SRAconst (SLLconst <typ.UInt32> x [24]) [int32(c+24)])
  6340  	for {
  6341  		x := v_0
  6342  		if v_1.Op != OpConst64 {
  6343  			break
  6344  		}
  6345  		c := auxIntToInt64(v_1.AuxInt)
  6346  		if !(uint32(c) < 8) {
  6347  			break
  6348  		}
  6349  		v.reset(OpMIPSSRAconst)
  6350  		v.AuxInt = int32ToAuxInt(int32(c + 24))
  6351  		v0 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
  6352  		v0.AuxInt = int32ToAuxInt(24)
  6353  		v0.AddArg(x)
  6354  		v.AddArg(v0)
  6355  		return true
  6356  	}
  6357  	// match: (Rsh8x64 x (Const64 [c]))
  6358  	// cond: uint32(c) >= 8
  6359  	// result: (SRAconst (SLLconst <typ.UInt32> x [24]) [31])
  6360  	for {
  6361  		x := v_0
  6362  		if v_1.Op != OpConst64 {
  6363  			break
  6364  		}
  6365  		c := auxIntToInt64(v_1.AuxInt)
  6366  		if !(uint32(c) >= 8) {
  6367  			break
  6368  		}
  6369  		v.reset(OpMIPSSRAconst)
  6370  		v.AuxInt = int32ToAuxInt(31)
  6371  		v0 := b.NewValue0(v.Pos, OpMIPSSLLconst, typ.UInt32)
  6372  		v0.AuxInt = int32ToAuxInt(24)
  6373  		v0.AddArg(x)
  6374  		v.AddArg(v0)
  6375  		return true
  6376  	}
  6377  	return false
  6378  }
  6379  func rewriteValueMIPS_OpRsh8x8(v *Value) bool {
  6380  	v_1 := v.Args[1]
  6381  	v_0 := v.Args[0]
  6382  	b := v.Block
  6383  	typ := &b.Func.Config.Types
  6384  	// match: (Rsh8x8 x y)
  6385  	// result: (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> (ZeroExt8to32 y) (MOVWconst [31]) (SGTUconst [32] (ZeroExt8to32 y))))
  6386  	for {
  6387  		x := v_0
  6388  		y := v_1
  6389  		v.reset(OpMIPSSRA)
  6390  		v0 := b.NewValue0(v.Pos, OpSignExt16to32, typ.Int32)
  6391  		v0.AddArg(x)
  6392  		v1 := b.NewValue0(v.Pos, OpMIPSCMOVZ, typ.UInt32)
  6393  		v2 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
  6394  		v2.AddArg(y)
  6395  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6396  		v3.AuxInt = int32ToAuxInt(31)
  6397  		v4 := b.NewValue0(v.Pos, OpMIPSSGTUconst, typ.Bool)
  6398  		v4.AuxInt = int32ToAuxInt(32)
  6399  		v4.AddArg(v2)
  6400  		v1.AddArg3(v2, v3, v4)
  6401  		v.AddArg2(v0, v1)
  6402  		return true
  6403  	}
  6404  }
  6405  func rewriteValueMIPS_OpSelect0(v *Value) bool {
  6406  	v_0 := v.Args[0]
  6407  	b := v.Block
  6408  	typ := &b.Func.Config.Types
  6409  	// match: (Select0 (Add32carry <t> x y))
  6410  	// result: (ADD <t.FieldType(0)> x y)
  6411  	for {
  6412  		if v_0.Op != OpAdd32carry {
  6413  			break
  6414  		}
  6415  		t := v_0.Type
  6416  		y := v_0.Args[1]
  6417  		x := v_0.Args[0]
  6418  		v.reset(OpMIPSADD)
  6419  		v.Type = t.FieldType(0)
  6420  		v.AddArg2(x, y)
  6421  		return true
  6422  	}
  6423  	// match: (Select0 (Sub32carry <t> x y))
  6424  	// result: (SUB <t.FieldType(0)> x y)
  6425  	for {
  6426  		if v_0.Op != OpSub32carry {
  6427  			break
  6428  		}
  6429  		t := v_0.Type
  6430  		y := v_0.Args[1]
  6431  		x := v_0.Args[0]
  6432  		v.reset(OpMIPSSUB)
  6433  		v.Type = t.FieldType(0)
  6434  		v.AddArg2(x, y)
  6435  		return true
  6436  	}
  6437  	// match: (Select0 (MULTU (MOVWconst [0]) _ ))
  6438  	// result: (MOVWconst [0])
  6439  	for {
  6440  		if v_0.Op != OpMIPSMULTU {
  6441  			break
  6442  		}
  6443  		v_0_0 := v_0.Args[0]
  6444  		v_0_1 := v_0.Args[1]
  6445  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6446  			if v_0_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0_0.AuxInt) != 0 {
  6447  				continue
  6448  			}
  6449  			v.reset(OpMIPSMOVWconst)
  6450  			v.AuxInt = int32ToAuxInt(0)
  6451  			return true
  6452  		}
  6453  		break
  6454  	}
  6455  	// match: (Select0 (MULTU (MOVWconst [1]) _ ))
  6456  	// result: (MOVWconst [0])
  6457  	for {
  6458  		if v_0.Op != OpMIPSMULTU {
  6459  			break
  6460  		}
  6461  		v_0_0 := v_0.Args[0]
  6462  		v_0_1 := v_0.Args[1]
  6463  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6464  			if v_0_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0_0.AuxInt) != 1 {
  6465  				continue
  6466  			}
  6467  			v.reset(OpMIPSMOVWconst)
  6468  			v.AuxInt = int32ToAuxInt(0)
  6469  			return true
  6470  		}
  6471  		break
  6472  	}
  6473  	// match: (Select0 (MULTU (MOVWconst [-1]) x ))
  6474  	// result: (CMOVZ (ADDconst <x.Type> [-1] x) (MOVWconst [0]) x)
  6475  	for {
  6476  		if v_0.Op != OpMIPSMULTU {
  6477  			break
  6478  		}
  6479  		_ = v_0.Args[1]
  6480  		v_0_0 := v_0.Args[0]
  6481  		v_0_1 := v_0.Args[1]
  6482  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6483  			if v_0_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0_0.AuxInt) != -1 {
  6484  				continue
  6485  			}
  6486  			x := v_0_1
  6487  			v.reset(OpMIPSCMOVZ)
  6488  			v0 := b.NewValue0(v.Pos, OpMIPSADDconst, x.Type)
  6489  			v0.AuxInt = int32ToAuxInt(-1)
  6490  			v0.AddArg(x)
  6491  			v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6492  			v1.AuxInt = int32ToAuxInt(0)
  6493  			v.AddArg3(v0, v1, x)
  6494  			return true
  6495  		}
  6496  		break
  6497  	}
  6498  	// match: (Select0 (MULTU (MOVWconst [c]) x ))
  6499  	// cond: isPowerOfTwo64(int64(uint32(c)))
  6500  	// result: (SRLconst [int32(32-log2uint32(int64(c)))] x)
  6501  	for {
  6502  		if v_0.Op != OpMIPSMULTU {
  6503  			break
  6504  		}
  6505  		_ = v_0.Args[1]
  6506  		v_0_0 := v_0.Args[0]
  6507  		v_0_1 := v_0.Args[1]
  6508  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6509  			if v_0_0.Op != OpMIPSMOVWconst {
  6510  				continue
  6511  			}
  6512  			c := auxIntToInt32(v_0_0.AuxInt)
  6513  			x := v_0_1
  6514  			if !(isPowerOfTwo64(int64(uint32(c)))) {
  6515  				continue
  6516  			}
  6517  			v.reset(OpMIPSSRLconst)
  6518  			v.AuxInt = int32ToAuxInt(int32(32 - log2uint32(int64(c))))
  6519  			v.AddArg(x)
  6520  			return true
  6521  		}
  6522  		break
  6523  	}
  6524  	// match: (Select0 (MULTU (MOVWconst [c]) (MOVWconst [d])))
  6525  	// result: (MOVWconst [int32((int64(uint32(c))*int64(uint32(d)))>>32)])
  6526  	for {
  6527  		if v_0.Op != OpMIPSMULTU {
  6528  			break
  6529  		}
  6530  		_ = v_0.Args[1]
  6531  		v_0_0 := v_0.Args[0]
  6532  		v_0_1 := v_0.Args[1]
  6533  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6534  			if v_0_0.Op != OpMIPSMOVWconst {
  6535  				continue
  6536  			}
  6537  			c := auxIntToInt32(v_0_0.AuxInt)
  6538  			if v_0_1.Op != OpMIPSMOVWconst {
  6539  				continue
  6540  			}
  6541  			d := auxIntToInt32(v_0_1.AuxInt)
  6542  			v.reset(OpMIPSMOVWconst)
  6543  			v.AuxInt = int32ToAuxInt(int32((int64(uint32(c)) * int64(uint32(d))) >> 32))
  6544  			return true
  6545  		}
  6546  		break
  6547  	}
  6548  	// match: (Select0 (DIV (MOVWconst [c]) (MOVWconst [d])))
  6549  	// cond: d != 0
  6550  	// result: (MOVWconst [c%d])
  6551  	for {
  6552  		if v_0.Op != OpMIPSDIV {
  6553  			break
  6554  		}
  6555  		_ = v_0.Args[1]
  6556  		v_0_0 := v_0.Args[0]
  6557  		if v_0_0.Op != OpMIPSMOVWconst {
  6558  			break
  6559  		}
  6560  		c := auxIntToInt32(v_0_0.AuxInt)
  6561  		v_0_1 := v_0.Args[1]
  6562  		if v_0_1.Op != OpMIPSMOVWconst {
  6563  			break
  6564  		}
  6565  		d := auxIntToInt32(v_0_1.AuxInt)
  6566  		if !(d != 0) {
  6567  			break
  6568  		}
  6569  		v.reset(OpMIPSMOVWconst)
  6570  		v.AuxInt = int32ToAuxInt(c % d)
  6571  		return true
  6572  	}
  6573  	// match: (Select0 (DIVU (MOVWconst [c]) (MOVWconst [d])))
  6574  	// cond: d != 0
  6575  	// result: (MOVWconst [int32(uint32(c)%uint32(d))])
  6576  	for {
  6577  		if v_0.Op != OpMIPSDIVU {
  6578  			break
  6579  		}
  6580  		_ = v_0.Args[1]
  6581  		v_0_0 := v_0.Args[0]
  6582  		if v_0_0.Op != OpMIPSMOVWconst {
  6583  			break
  6584  		}
  6585  		c := auxIntToInt32(v_0_0.AuxInt)
  6586  		v_0_1 := v_0.Args[1]
  6587  		if v_0_1.Op != OpMIPSMOVWconst {
  6588  			break
  6589  		}
  6590  		d := auxIntToInt32(v_0_1.AuxInt)
  6591  		if !(d != 0) {
  6592  			break
  6593  		}
  6594  		v.reset(OpMIPSMOVWconst)
  6595  		v.AuxInt = int32ToAuxInt(int32(uint32(c) % uint32(d)))
  6596  		return true
  6597  	}
  6598  	return false
  6599  }
  6600  func rewriteValueMIPS_OpSelect1(v *Value) bool {
  6601  	v_0 := v.Args[0]
  6602  	b := v.Block
  6603  	typ := &b.Func.Config.Types
  6604  	// match: (Select1 (Add32carry <t> x y))
  6605  	// result: (SGTU <typ.Bool> x (ADD <t.FieldType(0)> x y))
  6606  	for {
  6607  		if v_0.Op != OpAdd32carry {
  6608  			break
  6609  		}
  6610  		t := v_0.Type
  6611  		y := v_0.Args[1]
  6612  		x := v_0.Args[0]
  6613  		v.reset(OpMIPSSGTU)
  6614  		v.Type = typ.Bool
  6615  		v0 := b.NewValue0(v.Pos, OpMIPSADD, t.FieldType(0))
  6616  		v0.AddArg2(x, y)
  6617  		v.AddArg2(x, v0)
  6618  		return true
  6619  	}
  6620  	// match: (Select1 (Sub32carry <t> x y))
  6621  	// result: (SGTU <typ.Bool> (SUB <t.FieldType(0)> x y) x)
  6622  	for {
  6623  		if v_0.Op != OpSub32carry {
  6624  			break
  6625  		}
  6626  		t := v_0.Type
  6627  		y := v_0.Args[1]
  6628  		x := v_0.Args[0]
  6629  		v.reset(OpMIPSSGTU)
  6630  		v.Type = typ.Bool
  6631  		v0 := b.NewValue0(v.Pos, OpMIPSSUB, t.FieldType(0))
  6632  		v0.AddArg2(x, y)
  6633  		v.AddArg2(v0, x)
  6634  		return true
  6635  	}
  6636  	// match: (Select1 (MULTU (MOVWconst [0]) _ ))
  6637  	// result: (MOVWconst [0])
  6638  	for {
  6639  		if v_0.Op != OpMIPSMULTU {
  6640  			break
  6641  		}
  6642  		v_0_0 := v_0.Args[0]
  6643  		v_0_1 := v_0.Args[1]
  6644  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6645  			if v_0_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0_0.AuxInt) != 0 {
  6646  				continue
  6647  			}
  6648  			v.reset(OpMIPSMOVWconst)
  6649  			v.AuxInt = int32ToAuxInt(0)
  6650  			return true
  6651  		}
  6652  		break
  6653  	}
  6654  	// match: (Select1 (MULTU (MOVWconst [1]) x ))
  6655  	// result: x
  6656  	for {
  6657  		if v_0.Op != OpMIPSMULTU {
  6658  			break
  6659  		}
  6660  		_ = v_0.Args[1]
  6661  		v_0_0 := v_0.Args[0]
  6662  		v_0_1 := v_0.Args[1]
  6663  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6664  			if v_0_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0_0.AuxInt) != 1 {
  6665  				continue
  6666  			}
  6667  			x := v_0_1
  6668  			v.copyOf(x)
  6669  			return true
  6670  		}
  6671  		break
  6672  	}
  6673  	// match: (Select1 (MULTU (MOVWconst [-1]) x ))
  6674  	// result: (NEG <x.Type> x)
  6675  	for {
  6676  		if v_0.Op != OpMIPSMULTU {
  6677  			break
  6678  		}
  6679  		_ = v_0.Args[1]
  6680  		v_0_0 := v_0.Args[0]
  6681  		v_0_1 := v_0.Args[1]
  6682  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6683  			if v_0_0.Op != OpMIPSMOVWconst || auxIntToInt32(v_0_0.AuxInt) != -1 {
  6684  				continue
  6685  			}
  6686  			x := v_0_1
  6687  			v.reset(OpMIPSNEG)
  6688  			v.Type = x.Type
  6689  			v.AddArg(x)
  6690  			return true
  6691  		}
  6692  		break
  6693  	}
  6694  	// match: (Select1 (MULTU (MOVWconst [c]) x ))
  6695  	// cond: isPowerOfTwo64(int64(uint32(c)))
  6696  	// result: (SLLconst [int32(log2uint32(int64(c)))] x)
  6697  	for {
  6698  		if v_0.Op != OpMIPSMULTU {
  6699  			break
  6700  		}
  6701  		_ = v_0.Args[1]
  6702  		v_0_0 := v_0.Args[0]
  6703  		v_0_1 := v_0.Args[1]
  6704  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6705  			if v_0_0.Op != OpMIPSMOVWconst {
  6706  				continue
  6707  			}
  6708  			c := auxIntToInt32(v_0_0.AuxInt)
  6709  			x := v_0_1
  6710  			if !(isPowerOfTwo64(int64(uint32(c)))) {
  6711  				continue
  6712  			}
  6713  			v.reset(OpMIPSSLLconst)
  6714  			v.AuxInt = int32ToAuxInt(int32(log2uint32(int64(c))))
  6715  			v.AddArg(x)
  6716  			return true
  6717  		}
  6718  		break
  6719  	}
  6720  	// match: (Select1 (MULTU (MOVWconst [c]) (MOVWconst [d])))
  6721  	// result: (MOVWconst [int32(uint32(c)*uint32(d))])
  6722  	for {
  6723  		if v_0.Op != OpMIPSMULTU {
  6724  			break
  6725  		}
  6726  		_ = v_0.Args[1]
  6727  		v_0_0 := v_0.Args[0]
  6728  		v_0_1 := v_0.Args[1]
  6729  		for _i0 := 0; _i0 <= 1; _i0, v_0_0, v_0_1 = _i0+1, v_0_1, v_0_0 {
  6730  			if v_0_0.Op != OpMIPSMOVWconst {
  6731  				continue
  6732  			}
  6733  			c := auxIntToInt32(v_0_0.AuxInt)
  6734  			if v_0_1.Op != OpMIPSMOVWconst {
  6735  				continue
  6736  			}
  6737  			d := auxIntToInt32(v_0_1.AuxInt)
  6738  			v.reset(OpMIPSMOVWconst)
  6739  			v.AuxInt = int32ToAuxInt(int32(uint32(c) * uint32(d)))
  6740  			return true
  6741  		}
  6742  		break
  6743  	}
  6744  	// match: (Select1 (DIV (MOVWconst [c]) (MOVWconst [d])))
  6745  	// cond: d != 0
  6746  	// result: (MOVWconst [c/d])
  6747  	for {
  6748  		if v_0.Op != OpMIPSDIV {
  6749  			break
  6750  		}
  6751  		_ = v_0.Args[1]
  6752  		v_0_0 := v_0.Args[0]
  6753  		if v_0_0.Op != OpMIPSMOVWconst {
  6754  			break
  6755  		}
  6756  		c := auxIntToInt32(v_0_0.AuxInt)
  6757  		v_0_1 := v_0.Args[1]
  6758  		if v_0_1.Op != OpMIPSMOVWconst {
  6759  			break
  6760  		}
  6761  		d := auxIntToInt32(v_0_1.AuxInt)
  6762  		if !(d != 0) {
  6763  			break
  6764  		}
  6765  		v.reset(OpMIPSMOVWconst)
  6766  		v.AuxInt = int32ToAuxInt(c / d)
  6767  		return true
  6768  	}
  6769  	// match: (Select1 (DIVU (MOVWconst [c]) (MOVWconst [d])))
  6770  	// cond: d != 0
  6771  	// result: (MOVWconst [int32(uint32(c)/uint32(d))])
  6772  	for {
  6773  		if v_0.Op != OpMIPSDIVU {
  6774  			break
  6775  		}
  6776  		_ = v_0.Args[1]
  6777  		v_0_0 := v_0.Args[0]
  6778  		if v_0_0.Op != OpMIPSMOVWconst {
  6779  			break
  6780  		}
  6781  		c := auxIntToInt32(v_0_0.AuxInt)
  6782  		v_0_1 := v_0.Args[1]
  6783  		if v_0_1.Op != OpMIPSMOVWconst {
  6784  			break
  6785  		}
  6786  		d := auxIntToInt32(v_0_1.AuxInt)
  6787  		if !(d != 0) {
  6788  			break
  6789  		}
  6790  		v.reset(OpMIPSMOVWconst)
  6791  		v.AuxInt = int32ToAuxInt(int32(uint32(c) / uint32(d)))
  6792  		return true
  6793  	}
  6794  	return false
  6795  }
  6796  func rewriteValueMIPS_OpSignmask(v *Value) bool {
  6797  	v_0 := v.Args[0]
  6798  	// match: (Signmask x)
  6799  	// result: (SRAconst x [31])
  6800  	for {
  6801  		x := v_0
  6802  		v.reset(OpMIPSSRAconst)
  6803  		v.AuxInt = int32ToAuxInt(31)
  6804  		v.AddArg(x)
  6805  		return true
  6806  	}
  6807  }
  6808  func rewriteValueMIPS_OpSlicemask(v *Value) bool {
  6809  	v_0 := v.Args[0]
  6810  	b := v.Block
  6811  	// match: (Slicemask <t> x)
  6812  	// result: (SRAconst (NEG <t> x) [31])
  6813  	for {
  6814  		t := v.Type
  6815  		x := v_0
  6816  		v.reset(OpMIPSSRAconst)
  6817  		v.AuxInt = int32ToAuxInt(31)
  6818  		v0 := b.NewValue0(v.Pos, OpMIPSNEG, t)
  6819  		v0.AddArg(x)
  6820  		v.AddArg(v0)
  6821  		return true
  6822  	}
  6823  }
  6824  func rewriteValueMIPS_OpStore(v *Value) bool {
  6825  	v_2 := v.Args[2]
  6826  	v_1 := v.Args[1]
  6827  	v_0 := v.Args[0]
  6828  	// match: (Store {t} ptr val mem)
  6829  	// cond: t.Size() == 1
  6830  	// result: (MOVBstore ptr val mem)
  6831  	for {
  6832  		t := auxToType(v.Aux)
  6833  		ptr := v_0
  6834  		val := v_1
  6835  		mem := v_2
  6836  		if !(t.Size() == 1) {
  6837  			break
  6838  		}
  6839  		v.reset(OpMIPSMOVBstore)
  6840  		v.AddArg3(ptr, val, mem)
  6841  		return true
  6842  	}
  6843  	// match: (Store {t} ptr val mem)
  6844  	// cond: t.Size() == 2
  6845  	// result: (MOVHstore ptr val mem)
  6846  	for {
  6847  		t := auxToType(v.Aux)
  6848  		ptr := v_0
  6849  		val := v_1
  6850  		mem := v_2
  6851  		if !(t.Size() == 2) {
  6852  			break
  6853  		}
  6854  		v.reset(OpMIPSMOVHstore)
  6855  		v.AddArg3(ptr, val, mem)
  6856  		return true
  6857  	}
  6858  	// match: (Store {t} ptr val mem)
  6859  	// cond: t.Size() == 4 && !t.IsFloat()
  6860  	// result: (MOVWstore ptr val mem)
  6861  	for {
  6862  		t := auxToType(v.Aux)
  6863  		ptr := v_0
  6864  		val := v_1
  6865  		mem := v_2
  6866  		if !(t.Size() == 4 && !t.IsFloat()) {
  6867  			break
  6868  		}
  6869  		v.reset(OpMIPSMOVWstore)
  6870  		v.AddArg3(ptr, val, mem)
  6871  		return true
  6872  	}
  6873  	// match: (Store {t} ptr val mem)
  6874  	// cond: t.Size() == 4 && t.IsFloat()
  6875  	// result: (MOVFstore ptr val mem)
  6876  	for {
  6877  		t := auxToType(v.Aux)
  6878  		ptr := v_0
  6879  		val := v_1
  6880  		mem := v_2
  6881  		if !(t.Size() == 4 && t.IsFloat()) {
  6882  			break
  6883  		}
  6884  		v.reset(OpMIPSMOVFstore)
  6885  		v.AddArg3(ptr, val, mem)
  6886  		return true
  6887  	}
  6888  	// match: (Store {t} ptr val mem)
  6889  	// cond: t.Size() == 8 && t.IsFloat()
  6890  	// result: (MOVDstore ptr val mem)
  6891  	for {
  6892  		t := auxToType(v.Aux)
  6893  		ptr := v_0
  6894  		val := v_1
  6895  		mem := v_2
  6896  		if !(t.Size() == 8 && t.IsFloat()) {
  6897  			break
  6898  		}
  6899  		v.reset(OpMIPSMOVDstore)
  6900  		v.AddArg3(ptr, val, mem)
  6901  		return true
  6902  	}
  6903  	return false
  6904  }
  6905  func rewriteValueMIPS_OpSub32withcarry(v *Value) bool {
  6906  	v_2 := v.Args[2]
  6907  	v_1 := v.Args[1]
  6908  	v_0 := v.Args[0]
  6909  	b := v.Block
  6910  	// match: (Sub32withcarry <t> x y c)
  6911  	// result: (SUB (SUB <t> x y) c)
  6912  	for {
  6913  		t := v.Type
  6914  		x := v_0
  6915  		y := v_1
  6916  		c := v_2
  6917  		v.reset(OpMIPSSUB)
  6918  		v0 := b.NewValue0(v.Pos, OpMIPSSUB, t)
  6919  		v0.AddArg2(x, y)
  6920  		v.AddArg2(v0, c)
  6921  		return true
  6922  	}
  6923  }
  6924  func rewriteValueMIPS_OpZero(v *Value) bool {
  6925  	v_1 := v.Args[1]
  6926  	v_0 := v.Args[0]
  6927  	b := v.Block
  6928  	config := b.Func.Config
  6929  	typ := &b.Func.Config.Types
  6930  	// match: (Zero [0] _ mem)
  6931  	// result: mem
  6932  	for {
  6933  		if auxIntToInt64(v.AuxInt) != 0 {
  6934  			break
  6935  		}
  6936  		mem := v_1
  6937  		v.copyOf(mem)
  6938  		return true
  6939  	}
  6940  	// match: (Zero [1] ptr mem)
  6941  	// result: (MOVBstore ptr (MOVWconst [0]) mem)
  6942  	for {
  6943  		if auxIntToInt64(v.AuxInt) != 1 {
  6944  			break
  6945  		}
  6946  		ptr := v_0
  6947  		mem := v_1
  6948  		v.reset(OpMIPSMOVBstore)
  6949  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6950  		v0.AuxInt = int32ToAuxInt(0)
  6951  		v.AddArg3(ptr, v0, mem)
  6952  		return true
  6953  	}
  6954  	// match: (Zero [2] {t} ptr mem)
  6955  	// cond: t.Alignment()%2 == 0
  6956  	// result: (MOVHstore ptr (MOVWconst [0]) mem)
  6957  	for {
  6958  		if auxIntToInt64(v.AuxInt) != 2 {
  6959  			break
  6960  		}
  6961  		t := auxToType(v.Aux)
  6962  		ptr := v_0
  6963  		mem := v_1
  6964  		if !(t.Alignment()%2 == 0) {
  6965  			break
  6966  		}
  6967  		v.reset(OpMIPSMOVHstore)
  6968  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6969  		v0.AuxInt = int32ToAuxInt(0)
  6970  		v.AddArg3(ptr, v0, mem)
  6971  		return true
  6972  	}
  6973  	// match: (Zero [2] ptr mem)
  6974  	// result: (MOVBstore [1] ptr (MOVWconst [0]) (MOVBstore [0] ptr (MOVWconst [0]) mem))
  6975  	for {
  6976  		if auxIntToInt64(v.AuxInt) != 2 {
  6977  			break
  6978  		}
  6979  		ptr := v_0
  6980  		mem := v_1
  6981  		v.reset(OpMIPSMOVBstore)
  6982  		v.AuxInt = int32ToAuxInt(1)
  6983  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  6984  		v0.AuxInt = int32ToAuxInt(0)
  6985  		v1 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  6986  		v1.AuxInt = int32ToAuxInt(0)
  6987  		v1.AddArg3(ptr, v0, mem)
  6988  		v.AddArg3(ptr, v0, v1)
  6989  		return true
  6990  	}
  6991  	// match: (Zero [4] {t} ptr mem)
  6992  	// cond: t.Alignment()%4 == 0
  6993  	// result: (MOVWstore ptr (MOVWconst [0]) mem)
  6994  	for {
  6995  		if auxIntToInt64(v.AuxInt) != 4 {
  6996  			break
  6997  		}
  6998  		t := auxToType(v.Aux)
  6999  		ptr := v_0
  7000  		mem := v_1
  7001  		if !(t.Alignment()%4 == 0) {
  7002  			break
  7003  		}
  7004  		v.reset(OpMIPSMOVWstore)
  7005  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7006  		v0.AuxInt = int32ToAuxInt(0)
  7007  		v.AddArg3(ptr, v0, mem)
  7008  		return true
  7009  	}
  7010  	// match: (Zero [4] {t} ptr mem)
  7011  	// cond: t.Alignment()%2 == 0
  7012  	// result: (MOVHstore [2] ptr (MOVWconst [0]) (MOVHstore [0] ptr (MOVWconst [0]) mem))
  7013  	for {
  7014  		if auxIntToInt64(v.AuxInt) != 4 {
  7015  			break
  7016  		}
  7017  		t := auxToType(v.Aux)
  7018  		ptr := v_0
  7019  		mem := v_1
  7020  		if !(t.Alignment()%2 == 0) {
  7021  			break
  7022  		}
  7023  		v.reset(OpMIPSMOVHstore)
  7024  		v.AuxInt = int32ToAuxInt(2)
  7025  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7026  		v0.AuxInt = int32ToAuxInt(0)
  7027  		v1 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  7028  		v1.AuxInt = int32ToAuxInt(0)
  7029  		v1.AddArg3(ptr, v0, mem)
  7030  		v.AddArg3(ptr, v0, v1)
  7031  		return true
  7032  	}
  7033  	// match: (Zero [4] ptr mem)
  7034  	// result: (MOVBstore [3] ptr (MOVWconst [0]) (MOVBstore [2] ptr (MOVWconst [0]) (MOVBstore [1] ptr (MOVWconst [0]) (MOVBstore [0] ptr (MOVWconst [0]) mem))))
  7035  	for {
  7036  		if auxIntToInt64(v.AuxInt) != 4 {
  7037  			break
  7038  		}
  7039  		ptr := v_0
  7040  		mem := v_1
  7041  		v.reset(OpMIPSMOVBstore)
  7042  		v.AuxInt = int32ToAuxInt(3)
  7043  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7044  		v0.AuxInt = int32ToAuxInt(0)
  7045  		v1 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  7046  		v1.AuxInt = int32ToAuxInt(2)
  7047  		v2 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  7048  		v2.AuxInt = int32ToAuxInt(1)
  7049  		v3 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  7050  		v3.AuxInt = int32ToAuxInt(0)
  7051  		v3.AddArg3(ptr, v0, mem)
  7052  		v2.AddArg3(ptr, v0, v3)
  7053  		v1.AddArg3(ptr, v0, v2)
  7054  		v.AddArg3(ptr, v0, v1)
  7055  		return true
  7056  	}
  7057  	// match: (Zero [3] ptr mem)
  7058  	// result: (MOVBstore [2] ptr (MOVWconst [0]) (MOVBstore [1] ptr (MOVWconst [0]) (MOVBstore [0] ptr (MOVWconst [0]) mem)))
  7059  	for {
  7060  		if auxIntToInt64(v.AuxInt) != 3 {
  7061  			break
  7062  		}
  7063  		ptr := v_0
  7064  		mem := v_1
  7065  		v.reset(OpMIPSMOVBstore)
  7066  		v.AuxInt = int32ToAuxInt(2)
  7067  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7068  		v0.AuxInt = int32ToAuxInt(0)
  7069  		v1 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  7070  		v1.AuxInt = int32ToAuxInt(1)
  7071  		v2 := b.NewValue0(v.Pos, OpMIPSMOVBstore, types.TypeMem)
  7072  		v2.AuxInt = int32ToAuxInt(0)
  7073  		v2.AddArg3(ptr, v0, mem)
  7074  		v1.AddArg3(ptr, v0, v2)
  7075  		v.AddArg3(ptr, v0, v1)
  7076  		return true
  7077  	}
  7078  	// match: (Zero [6] {t} ptr mem)
  7079  	// cond: t.Alignment()%2 == 0
  7080  	// result: (MOVHstore [4] ptr (MOVWconst [0]) (MOVHstore [2] ptr (MOVWconst [0]) (MOVHstore [0] ptr (MOVWconst [0]) mem)))
  7081  	for {
  7082  		if auxIntToInt64(v.AuxInt) != 6 {
  7083  			break
  7084  		}
  7085  		t := auxToType(v.Aux)
  7086  		ptr := v_0
  7087  		mem := v_1
  7088  		if !(t.Alignment()%2 == 0) {
  7089  			break
  7090  		}
  7091  		v.reset(OpMIPSMOVHstore)
  7092  		v.AuxInt = int32ToAuxInt(4)
  7093  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7094  		v0.AuxInt = int32ToAuxInt(0)
  7095  		v1 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  7096  		v1.AuxInt = int32ToAuxInt(2)
  7097  		v2 := b.NewValue0(v.Pos, OpMIPSMOVHstore, types.TypeMem)
  7098  		v2.AuxInt = int32ToAuxInt(0)
  7099  		v2.AddArg3(ptr, v0, mem)
  7100  		v1.AddArg3(ptr, v0, v2)
  7101  		v.AddArg3(ptr, v0, v1)
  7102  		return true
  7103  	}
  7104  	// match: (Zero [8] {t} ptr mem)
  7105  	// cond: t.Alignment()%4 == 0
  7106  	// result: (MOVWstore [4] ptr (MOVWconst [0]) (MOVWstore [0] ptr (MOVWconst [0]) mem))
  7107  	for {
  7108  		if auxIntToInt64(v.AuxInt) != 8 {
  7109  			break
  7110  		}
  7111  		t := auxToType(v.Aux)
  7112  		ptr := v_0
  7113  		mem := v_1
  7114  		if !(t.Alignment()%4 == 0) {
  7115  			break
  7116  		}
  7117  		v.reset(OpMIPSMOVWstore)
  7118  		v.AuxInt = int32ToAuxInt(4)
  7119  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7120  		v0.AuxInt = int32ToAuxInt(0)
  7121  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  7122  		v1.AuxInt = int32ToAuxInt(0)
  7123  		v1.AddArg3(ptr, v0, mem)
  7124  		v.AddArg3(ptr, v0, v1)
  7125  		return true
  7126  	}
  7127  	// match: (Zero [12] {t} ptr mem)
  7128  	// cond: t.Alignment()%4 == 0
  7129  	// result: (MOVWstore [8] ptr (MOVWconst [0]) (MOVWstore [4] ptr (MOVWconst [0]) (MOVWstore [0] ptr (MOVWconst [0]) mem)))
  7130  	for {
  7131  		if auxIntToInt64(v.AuxInt) != 12 {
  7132  			break
  7133  		}
  7134  		t := auxToType(v.Aux)
  7135  		ptr := v_0
  7136  		mem := v_1
  7137  		if !(t.Alignment()%4 == 0) {
  7138  			break
  7139  		}
  7140  		v.reset(OpMIPSMOVWstore)
  7141  		v.AuxInt = int32ToAuxInt(8)
  7142  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7143  		v0.AuxInt = int32ToAuxInt(0)
  7144  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  7145  		v1.AuxInt = int32ToAuxInt(4)
  7146  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  7147  		v2.AuxInt = int32ToAuxInt(0)
  7148  		v2.AddArg3(ptr, v0, mem)
  7149  		v1.AddArg3(ptr, v0, v2)
  7150  		v.AddArg3(ptr, v0, v1)
  7151  		return true
  7152  	}
  7153  	// match: (Zero [16] {t} ptr mem)
  7154  	// cond: t.Alignment()%4 == 0
  7155  	// result: (MOVWstore [12] ptr (MOVWconst [0]) (MOVWstore [8] ptr (MOVWconst [0]) (MOVWstore [4] ptr (MOVWconst [0]) (MOVWstore [0] ptr (MOVWconst [0]) mem))))
  7156  	for {
  7157  		if auxIntToInt64(v.AuxInt) != 16 {
  7158  			break
  7159  		}
  7160  		t := auxToType(v.Aux)
  7161  		ptr := v_0
  7162  		mem := v_1
  7163  		if !(t.Alignment()%4 == 0) {
  7164  			break
  7165  		}
  7166  		v.reset(OpMIPSMOVWstore)
  7167  		v.AuxInt = int32ToAuxInt(12)
  7168  		v0 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7169  		v0.AuxInt = int32ToAuxInt(0)
  7170  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  7171  		v1.AuxInt = int32ToAuxInt(8)
  7172  		v2 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  7173  		v2.AuxInt = int32ToAuxInt(4)
  7174  		v3 := b.NewValue0(v.Pos, OpMIPSMOVWstore, types.TypeMem)
  7175  		v3.AuxInt = int32ToAuxInt(0)
  7176  		v3.AddArg3(ptr, v0, mem)
  7177  		v2.AddArg3(ptr, v0, v3)
  7178  		v1.AddArg3(ptr, v0, v2)
  7179  		v.AddArg3(ptr, v0, v1)
  7180  		return true
  7181  	}
  7182  	// match: (Zero [s] {t} ptr mem)
  7183  	// cond: (s > 16 || t.Alignment()%4 != 0)
  7184  	// result: (LoweredZero [int32(t.Alignment())] ptr (ADDconst <ptr.Type> ptr [int32(s-moveSize(t.Alignment(), config))]) mem)
  7185  	for {
  7186  		s := auxIntToInt64(v.AuxInt)
  7187  		t := auxToType(v.Aux)
  7188  		ptr := v_0
  7189  		mem := v_1
  7190  		if !(s > 16 || t.Alignment()%4 != 0) {
  7191  			break
  7192  		}
  7193  		v.reset(OpMIPSLoweredZero)
  7194  		v.AuxInt = int32ToAuxInt(int32(t.Alignment()))
  7195  		v0 := b.NewValue0(v.Pos, OpMIPSADDconst, ptr.Type)
  7196  		v0.AuxInt = int32ToAuxInt(int32(s - moveSize(t.Alignment(), config)))
  7197  		v0.AddArg(ptr)
  7198  		v.AddArg3(ptr, v0, mem)
  7199  		return true
  7200  	}
  7201  	return false
  7202  }
  7203  func rewriteValueMIPS_OpZeromask(v *Value) bool {
  7204  	v_0 := v.Args[0]
  7205  	b := v.Block
  7206  	typ := &b.Func.Config.Types
  7207  	// match: (Zeromask x)
  7208  	// result: (NEG (SGTU x (MOVWconst [0])))
  7209  	for {
  7210  		x := v_0
  7211  		v.reset(OpMIPSNEG)
  7212  		v0 := b.NewValue0(v.Pos, OpMIPSSGTU, typ.Bool)
  7213  		v1 := b.NewValue0(v.Pos, OpMIPSMOVWconst, typ.UInt32)
  7214  		v1.AuxInt = int32ToAuxInt(0)
  7215  		v0.AddArg2(x, v1)
  7216  		v.AddArg(v0)
  7217  		return true
  7218  	}
  7219  }
  7220  func rewriteBlockMIPS(b *Block) bool {
  7221  	switch b.Kind {
  7222  	case BlockMIPSEQ:
  7223  		// match: (EQ (FPFlagTrue cmp) yes no)
  7224  		// result: (FPF cmp yes no)
  7225  		for b.Controls[0].Op == OpMIPSFPFlagTrue {
  7226  			v_0 := b.Controls[0]
  7227  			cmp := v_0.Args[0]
  7228  			b.resetWithControl(BlockMIPSFPF, cmp)
  7229  			return true
  7230  		}
  7231  		// match: (EQ (FPFlagFalse cmp) yes no)
  7232  		// result: (FPT cmp yes no)
  7233  		for b.Controls[0].Op == OpMIPSFPFlagFalse {
  7234  			v_0 := b.Controls[0]
  7235  			cmp := v_0.Args[0]
  7236  			b.resetWithControl(BlockMIPSFPT, cmp)
  7237  			return true
  7238  		}
  7239  		// match: (EQ (XORconst [1] cmp:(SGT _ _)) yes no)
  7240  		// result: (NE cmp yes no)
  7241  		for b.Controls[0].Op == OpMIPSXORconst {
  7242  			v_0 := b.Controls[0]
  7243  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7244  				break
  7245  			}
  7246  			cmp := v_0.Args[0]
  7247  			if cmp.Op != OpMIPSSGT {
  7248  				break
  7249  			}
  7250  			b.resetWithControl(BlockMIPSNE, cmp)
  7251  			return true
  7252  		}
  7253  		// match: (EQ (XORconst [1] cmp:(SGTU _ _)) yes no)
  7254  		// result: (NE cmp yes no)
  7255  		for b.Controls[0].Op == OpMIPSXORconst {
  7256  			v_0 := b.Controls[0]
  7257  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7258  				break
  7259  			}
  7260  			cmp := v_0.Args[0]
  7261  			if cmp.Op != OpMIPSSGTU {
  7262  				break
  7263  			}
  7264  			b.resetWithControl(BlockMIPSNE, cmp)
  7265  			return true
  7266  		}
  7267  		// match: (EQ (XORconst [1] cmp:(SGTconst _)) yes no)
  7268  		// result: (NE cmp yes no)
  7269  		for b.Controls[0].Op == OpMIPSXORconst {
  7270  			v_0 := b.Controls[0]
  7271  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7272  				break
  7273  			}
  7274  			cmp := v_0.Args[0]
  7275  			if cmp.Op != OpMIPSSGTconst {
  7276  				break
  7277  			}
  7278  			b.resetWithControl(BlockMIPSNE, cmp)
  7279  			return true
  7280  		}
  7281  		// match: (EQ (XORconst [1] cmp:(SGTUconst _)) yes no)
  7282  		// result: (NE cmp yes no)
  7283  		for b.Controls[0].Op == OpMIPSXORconst {
  7284  			v_0 := b.Controls[0]
  7285  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7286  				break
  7287  			}
  7288  			cmp := v_0.Args[0]
  7289  			if cmp.Op != OpMIPSSGTUconst {
  7290  				break
  7291  			}
  7292  			b.resetWithControl(BlockMIPSNE, cmp)
  7293  			return true
  7294  		}
  7295  		// match: (EQ (XORconst [1] cmp:(SGTzero _)) yes no)
  7296  		// result: (NE cmp yes no)
  7297  		for b.Controls[0].Op == OpMIPSXORconst {
  7298  			v_0 := b.Controls[0]
  7299  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7300  				break
  7301  			}
  7302  			cmp := v_0.Args[0]
  7303  			if cmp.Op != OpMIPSSGTzero {
  7304  				break
  7305  			}
  7306  			b.resetWithControl(BlockMIPSNE, cmp)
  7307  			return true
  7308  		}
  7309  		// match: (EQ (XORconst [1] cmp:(SGTUzero _)) yes no)
  7310  		// result: (NE cmp yes no)
  7311  		for b.Controls[0].Op == OpMIPSXORconst {
  7312  			v_0 := b.Controls[0]
  7313  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7314  				break
  7315  			}
  7316  			cmp := v_0.Args[0]
  7317  			if cmp.Op != OpMIPSSGTUzero {
  7318  				break
  7319  			}
  7320  			b.resetWithControl(BlockMIPSNE, cmp)
  7321  			return true
  7322  		}
  7323  		// match: (EQ (SGTUconst [1] x) yes no)
  7324  		// result: (NE x yes no)
  7325  		for b.Controls[0].Op == OpMIPSSGTUconst {
  7326  			v_0 := b.Controls[0]
  7327  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7328  				break
  7329  			}
  7330  			x := v_0.Args[0]
  7331  			b.resetWithControl(BlockMIPSNE, x)
  7332  			return true
  7333  		}
  7334  		// match: (EQ (SGTUzero x) yes no)
  7335  		// result: (EQ x yes no)
  7336  		for b.Controls[0].Op == OpMIPSSGTUzero {
  7337  			v_0 := b.Controls[0]
  7338  			x := v_0.Args[0]
  7339  			b.resetWithControl(BlockMIPSEQ, x)
  7340  			return true
  7341  		}
  7342  		// match: (EQ (SGTconst [0] x) yes no)
  7343  		// result: (GEZ x yes no)
  7344  		for b.Controls[0].Op == OpMIPSSGTconst {
  7345  			v_0 := b.Controls[0]
  7346  			if auxIntToInt32(v_0.AuxInt) != 0 {
  7347  				break
  7348  			}
  7349  			x := v_0.Args[0]
  7350  			b.resetWithControl(BlockMIPSGEZ, x)
  7351  			return true
  7352  		}
  7353  		// match: (EQ (SGTzero x) yes no)
  7354  		// result: (LEZ x yes no)
  7355  		for b.Controls[0].Op == OpMIPSSGTzero {
  7356  			v_0 := b.Controls[0]
  7357  			x := v_0.Args[0]
  7358  			b.resetWithControl(BlockMIPSLEZ, x)
  7359  			return true
  7360  		}
  7361  		// match: (EQ (MOVWconst [0]) yes no)
  7362  		// result: (First yes no)
  7363  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7364  			v_0 := b.Controls[0]
  7365  			if auxIntToInt32(v_0.AuxInt) != 0 {
  7366  				break
  7367  			}
  7368  			b.Reset(BlockFirst)
  7369  			return true
  7370  		}
  7371  		// match: (EQ (MOVWconst [c]) yes no)
  7372  		// cond: c != 0
  7373  		// result: (First no yes)
  7374  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7375  			v_0 := b.Controls[0]
  7376  			c := auxIntToInt32(v_0.AuxInt)
  7377  			if !(c != 0) {
  7378  				break
  7379  			}
  7380  			b.Reset(BlockFirst)
  7381  			b.swapSuccessors()
  7382  			return true
  7383  		}
  7384  	case BlockMIPSGEZ:
  7385  		// match: (GEZ (MOVWconst [c]) yes no)
  7386  		// cond: c >= 0
  7387  		// result: (First yes no)
  7388  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7389  			v_0 := b.Controls[0]
  7390  			c := auxIntToInt32(v_0.AuxInt)
  7391  			if !(c >= 0) {
  7392  				break
  7393  			}
  7394  			b.Reset(BlockFirst)
  7395  			return true
  7396  		}
  7397  		// match: (GEZ (MOVWconst [c]) yes no)
  7398  		// cond: c < 0
  7399  		// result: (First no yes)
  7400  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7401  			v_0 := b.Controls[0]
  7402  			c := auxIntToInt32(v_0.AuxInt)
  7403  			if !(c < 0) {
  7404  				break
  7405  			}
  7406  			b.Reset(BlockFirst)
  7407  			b.swapSuccessors()
  7408  			return true
  7409  		}
  7410  	case BlockMIPSGTZ:
  7411  		// match: (GTZ (MOVWconst [c]) yes no)
  7412  		// cond: c > 0
  7413  		// result: (First yes no)
  7414  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7415  			v_0 := b.Controls[0]
  7416  			c := auxIntToInt32(v_0.AuxInt)
  7417  			if !(c > 0) {
  7418  				break
  7419  			}
  7420  			b.Reset(BlockFirst)
  7421  			return true
  7422  		}
  7423  		// match: (GTZ (MOVWconst [c]) yes no)
  7424  		// cond: c <= 0
  7425  		// result: (First no yes)
  7426  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7427  			v_0 := b.Controls[0]
  7428  			c := auxIntToInt32(v_0.AuxInt)
  7429  			if !(c <= 0) {
  7430  				break
  7431  			}
  7432  			b.Reset(BlockFirst)
  7433  			b.swapSuccessors()
  7434  			return true
  7435  		}
  7436  	case BlockIf:
  7437  		// match: (If cond yes no)
  7438  		// result: (NE cond yes no)
  7439  		for {
  7440  			cond := b.Controls[0]
  7441  			b.resetWithControl(BlockMIPSNE, cond)
  7442  			return true
  7443  		}
  7444  	case BlockMIPSLEZ:
  7445  		// match: (LEZ (MOVWconst [c]) yes no)
  7446  		// cond: c <= 0
  7447  		// result: (First yes no)
  7448  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7449  			v_0 := b.Controls[0]
  7450  			c := auxIntToInt32(v_0.AuxInt)
  7451  			if !(c <= 0) {
  7452  				break
  7453  			}
  7454  			b.Reset(BlockFirst)
  7455  			return true
  7456  		}
  7457  		// match: (LEZ (MOVWconst [c]) yes no)
  7458  		// cond: c > 0
  7459  		// result: (First no yes)
  7460  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7461  			v_0 := b.Controls[0]
  7462  			c := auxIntToInt32(v_0.AuxInt)
  7463  			if !(c > 0) {
  7464  				break
  7465  			}
  7466  			b.Reset(BlockFirst)
  7467  			b.swapSuccessors()
  7468  			return true
  7469  		}
  7470  	case BlockMIPSLTZ:
  7471  		// match: (LTZ (MOVWconst [c]) yes no)
  7472  		// cond: c < 0
  7473  		// result: (First yes no)
  7474  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7475  			v_0 := b.Controls[0]
  7476  			c := auxIntToInt32(v_0.AuxInt)
  7477  			if !(c < 0) {
  7478  				break
  7479  			}
  7480  			b.Reset(BlockFirst)
  7481  			return true
  7482  		}
  7483  		// match: (LTZ (MOVWconst [c]) yes no)
  7484  		// cond: c >= 0
  7485  		// result: (First no yes)
  7486  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7487  			v_0 := b.Controls[0]
  7488  			c := auxIntToInt32(v_0.AuxInt)
  7489  			if !(c >= 0) {
  7490  				break
  7491  			}
  7492  			b.Reset(BlockFirst)
  7493  			b.swapSuccessors()
  7494  			return true
  7495  		}
  7496  	case BlockMIPSNE:
  7497  		// match: (NE (FPFlagTrue cmp) yes no)
  7498  		// result: (FPT cmp yes no)
  7499  		for b.Controls[0].Op == OpMIPSFPFlagTrue {
  7500  			v_0 := b.Controls[0]
  7501  			cmp := v_0.Args[0]
  7502  			b.resetWithControl(BlockMIPSFPT, cmp)
  7503  			return true
  7504  		}
  7505  		// match: (NE (FPFlagFalse cmp) yes no)
  7506  		// result: (FPF cmp yes no)
  7507  		for b.Controls[0].Op == OpMIPSFPFlagFalse {
  7508  			v_0 := b.Controls[0]
  7509  			cmp := v_0.Args[0]
  7510  			b.resetWithControl(BlockMIPSFPF, cmp)
  7511  			return true
  7512  		}
  7513  		// match: (NE (XORconst [1] cmp:(SGT _ _)) yes no)
  7514  		// result: (EQ cmp yes no)
  7515  		for b.Controls[0].Op == OpMIPSXORconst {
  7516  			v_0 := b.Controls[0]
  7517  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7518  				break
  7519  			}
  7520  			cmp := v_0.Args[0]
  7521  			if cmp.Op != OpMIPSSGT {
  7522  				break
  7523  			}
  7524  			b.resetWithControl(BlockMIPSEQ, cmp)
  7525  			return true
  7526  		}
  7527  		// match: (NE (XORconst [1] cmp:(SGTU _ _)) yes no)
  7528  		// result: (EQ cmp yes no)
  7529  		for b.Controls[0].Op == OpMIPSXORconst {
  7530  			v_0 := b.Controls[0]
  7531  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7532  				break
  7533  			}
  7534  			cmp := v_0.Args[0]
  7535  			if cmp.Op != OpMIPSSGTU {
  7536  				break
  7537  			}
  7538  			b.resetWithControl(BlockMIPSEQ, cmp)
  7539  			return true
  7540  		}
  7541  		// match: (NE (XORconst [1] cmp:(SGTconst _)) yes no)
  7542  		// result: (EQ cmp yes no)
  7543  		for b.Controls[0].Op == OpMIPSXORconst {
  7544  			v_0 := b.Controls[0]
  7545  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7546  				break
  7547  			}
  7548  			cmp := v_0.Args[0]
  7549  			if cmp.Op != OpMIPSSGTconst {
  7550  				break
  7551  			}
  7552  			b.resetWithControl(BlockMIPSEQ, cmp)
  7553  			return true
  7554  		}
  7555  		// match: (NE (XORconst [1] cmp:(SGTUconst _)) yes no)
  7556  		// result: (EQ cmp yes no)
  7557  		for b.Controls[0].Op == OpMIPSXORconst {
  7558  			v_0 := b.Controls[0]
  7559  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7560  				break
  7561  			}
  7562  			cmp := v_0.Args[0]
  7563  			if cmp.Op != OpMIPSSGTUconst {
  7564  				break
  7565  			}
  7566  			b.resetWithControl(BlockMIPSEQ, cmp)
  7567  			return true
  7568  		}
  7569  		// match: (NE (XORconst [1] cmp:(SGTzero _)) yes no)
  7570  		// result: (EQ cmp yes no)
  7571  		for b.Controls[0].Op == OpMIPSXORconst {
  7572  			v_0 := b.Controls[0]
  7573  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7574  				break
  7575  			}
  7576  			cmp := v_0.Args[0]
  7577  			if cmp.Op != OpMIPSSGTzero {
  7578  				break
  7579  			}
  7580  			b.resetWithControl(BlockMIPSEQ, cmp)
  7581  			return true
  7582  		}
  7583  		// match: (NE (XORconst [1] cmp:(SGTUzero _)) yes no)
  7584  		// result: (EQ cmp yes no)
  7585  		for b.Controls[0].Op == OpMIPSXORconst {
  7586  			v_0 := b.Controls[0]
  7587  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7588  				break
  7589  			}
  7590  			cmp := v_0.Args[0]
  7591  			if cmp.Op != OpMIPSSGTUzero {
  7592  				break
  7593  			}
  7594  			b.resetWithControl(BlockMIPSEQ, cmp)
  7595  			return true
  7596  		}
  7597  		// match: (NE (SGTUconst [1] x) yes no)
  7598  		// result: (EQ x yes no)
  7599  		for b.Controls[0].Op == OpMIPSSGTUconst {
  7600  			v_0 := b.Controls[0]
  7601  			if auxIntToInt32(v_0.AuxInt) != 1 {
  7602  				break
  7603  			}
  7604  			x := v_0.Args[0]
  7605  			b.resetWithControl(BlockMIPSEQ, x)
  7606  			return true
  7607  		}
  7608  		// match: (NE (SGTUzero x) yes no)
  7609  		// result: (NE x yes no)
  7610  		for b.Controls[0].Op == OpMIPSSGTUzero {
  7611  			v_0 := b.Controls[0]
  7612  			x := v_0.Args[0]
  7613  			b.resetWithControl(BlockMIPSNE, x)
  7614  			return true
  7615  		}
  7616  		// match: (NE (SGTconst [0] x) yes no)
  7617  		// result: (LTZ x yes no)
  7618  		for b.Controls[0].Op == OpMIPSSGTconst {
  7619  			v_0 := b.Controls[0]
  7620  			if auxIntToInt32(v_0.AuxInt) != 0 {
  7621  				break
  7622  			}
  7623  			x := v_0.Args[0]
  7624  			b.resetWithControl(BlockMIPSLTZ, x)
  7625  			return true
  7626  		}
  7627  		// match: (NE (SGTzero x) yes no)
  7628  		// result: (GTZ x yes no)
  7629  		for b.Controls[0].Op == OpMIPSSGTzero {
  7630  			v_0 := b.Controls[0]
  7631  			x := v_0.Args[0]
  7632  			b.resetWithControl(BlockMIPSGTZ, x)
  7633  			return true
  7634  		}
  7635  		// match: (NE (MOVWconst [0]) yes no)
  7636  		// result: (First no yes)
  7637  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7638  			v_0 := b.Controls[0]
  7639  			if auxIntToInt32(v_0.AuxInt) != 0 {
  7640  				break
  7641  			}
  7642  			b.Reset(BlockFirst)
  7643  			b.swapSuccessors()
  7644  			return true
  7645  		}
  7646  		// match: (NE (MOVWconst [c]) yes no)
  7647  		// cond: c != 0
  7648  		// result: (First yes no)
  7649  		for b.Controls[0].Op == OpMIPSMOVWconst {
  7650  			v_0 := b.Controls[0]
  7651  			c := auxIntToInt32(v_0.AuxInt)
  7652  			if !(c != 0) {
  7653  				break
  7654  			}
  7655  			b.Reset(BlockFirst)
  7656  			return true
  7657  		}
  7658  	}
  7659  	return false
  7660  }
  7661  

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