1# Test go build -pgo=auto flag.
2
3[short] skip 'compiles and links executables'
4
5# Set up fresh GOCACHE.
6env GOCACHE=$WORK/gocache
7mkdir $GOCACHE
8
9# use default.pgo for a single main package
10go build -n -pgo=auto -o a1.exe ./a/a1
11stderr 'preprofile.*-i.*default\.pgo'
12stderr 'compile.*-pgoprofile=.*a1.go'
13
14# check that pgo applied to dependencies
15stderr 'compile.*-p test/dep.*-pgoprofile=.*'
16
17# check that pgo appears in build info
18# N.B. we can't start the stdout check with -pgo because the script assumes that
19# if the first arg starts with - it is a grep flag.
20stderr 'build\\t-pgo=.*default\.pgo'
21
22# check also that -pgo appears with the other flags, before non-flag settings
23! stderr 'build\\t[A-Za-z].*build\\t-pgo'
24
25# use default.pgo for ... with a single main package
26go build -n -pgo=auto ./a/...
27stderr 'compile.*-pgoprofile=.*a1.go'
28
29# check that pgo appears in build info
30stderr 'build\\t-pgo=.*default\.pgo'
31
32# build succeeds without PGO when default.pgo file is absent
33go build -n -pgo=auto -o nopgo.exe ./nopgo
34stderr 'compile.*nopgo.go'
35! stderr 'compile.*-pgoprofile'
36
37# check that pgo doesn't appear in build info
38! stderr 'build\\t-pgo='
39
40# other build-related commands
41go install -a -n -pgo=auto ./a/a1
42stderr 'compile.*-pgoprofile=.*a1.go'
43
44go run -a -n -pgo=auto ./a/a1
45stderr 'compile.*-pgoprofile=.*a1.go'
46
47go test -a -n -pgo=auto ./a/a1
48stderr 'compile.*-pgoprofile=.*a1.go.*a1_test.go'
49stderr 'compile.*-pgoprofile=.*external_test.go'
50
51# go list commands should succeed as usual
52go list -pgo=auto ./a/a1
53
54go list -test -pgo=auto ./a/a1
55
56go list -deps -pgo=auto ./a/a1
57
58# -pgo=auto is the default. Commands without explicit -pgo=auto
59# should work as -pgo=auto.
60go build -a -n -o a1.exe ./a/a1
61stderr 'compile.*-pgoprofile=.*a1.go'
62stderr 'compile.*-p test/dep.*-pgoprofile=.*'
63
64# check that pgo appears in build info
65stderr 'build\\t-pgo=.*default\.pgo'
66
67go build -a -n -o nopgo.exe ./nopgo
68stderr 'compile.*nopgo.go'
69! stderr 'compile.*-pgoprofile'
70
71# check that pgo doesn't appear in build info
72! stderr 'build\\t-pgo='
73
74# -pgo=off should turn off PGO.
75go build -a -n -pgo=off -o a1.exe ./a/a1
76stderr 'compile.*a1.go'
77! stderr 'compile.*-pgoprofile'
78
79# check that pgo doesn't appear in build info
80! stderr 'build\\t-pgo='
81
82-- go.mod --
83module test
84go 1.20
85-- a/a1/a1.go --
86package main
87import _ "test/dep"
88func main() {}
89-- a/a1/a1_test.go --
90package main
91import "testing"
92func TestA(*testing.T) {}
93-- a/a1/external_test.go --
94package main_test
95import "testing"
96func TestExternal(*testing.T) {}
97-- a/a1/default.pgo --
98-- nopgo/nopgo.go --
99package main
100func main() {}
101-- dep/dep.go --
102package dep
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