1 files changed, 94 insertions, 0 deletions
diff --git a/src/cmd/go/testdata/script/build_pgo_auto.txt b/src/cmd/go/testdata/script/build_pgo_auto.txt
new file mode 100644
index 0000000..5dd799a
--- /dev/null
+++ b/src/cmd/go/testdata/script/build_pgo_auto.txt
@@ -0,0 +1,94 @@
+# Test go build -pgo=auto flag.
+
+[short] skip 'compiles and links executables'
+
+# use default.pgo for a single main package
+go build -n -pgo=auto -o a1.exe ./a/a1
+stderr 'compile.*-pgoprofile=.*default\.pgo.*a1.go'
+
+# check that pgo applied to dependencies
+stderr 'compile.*-p test/dep.*-pgoprofile=.*default\.pgo'
+
+# check that pgo appears in build info
+# N.B. we can't start the stdout check with -pgo because the script assumes that
+# if the first arg starts with - it is a grep flag.
+stderr 'build\\t-pgo=.*default\.pgo'
+
+# use default.pgo for ... with a single main package
+go build -n -pgo=auto ./a/...
+stderr 'compile.*-pgoprofile=.*default\.pgo.*a1.go'
+
+# check that pgo appears in build info
+stderr 'build\\t-pgo=.*default\.pgo'
+
+# build succeeds without PGO when default.pgo file is absent
+go build -n -pgo=auto -o nopgo.exe ./nopgo
+stderr 'compile.*nopgo.go'
+! stderr 'compile.*-pgoprofile'
+
+# check that pgo doesn't appear in build info
+! stderr 'build\\t-pgo='
+
+# other build-related commands
+go install -a -n -pgo=auto ./a/a1
+stderr 'compile.*-pgoprofile=.*default\.pgo.*a1.go'
+
+go run -a -n -pgo=auto ./a/a1
+stderr 'compile.*-pgoprofile=.*default\.pgo.*a1.go'
+
+go test -a -n -pgo=auto ./a/a1
+stderr 'compile.*-pgoprofile=.*default\.pgo.*a1.go.*a1_test.go'
+stderr 'compile.*-pgoprofile=.*default\.pgo.*external_test.go'
+
+# go list commands should succeed as usual
+go list -pgo=auto ./a/a1
+
+go list -test -pgo=auto ./a/a1
+
+go list -deps -pgo=auto ./a/a1
+
+# -pgo=auto is the default. Commands without explicit -pgo=auto
+# should work as -pgo=auto.
+go build -a -n -o a1.exe ./a/a1
+stderr 'compile.*-pgoprofile=.*default\.pgo.*a1.go'
+stderr 'compile.*-p test/dep.*-pgoprofile=.*default\.pgo'
+
+# check that pgo appears in build info
+stderr 'build\\t-pgo=.*default\.pgo'
+
+go build -a -n -o nopgo.exe ./nopgo
+stderr 'compile.*nopgo.go'
+! stderr 'compile.*-pgoprofile'
+
+# check that pgo doesn't appear in build info
+! stderr 'build\\t-pgo='
+
+# -pgo=off should turn off PGO.
+go build -a -n -pgo=off -o a1.exe ./a/a1
+stderr 'compile.*a1.go'
+! stderr 'compile.*-pgoprofile'
+
+# check that pgo doesn't appear in build info
+! stderr 'build\\t-pgo='
+
+-- go.mod --
+module test
+go 1.20
+-- a/a1/a1.go --
+package main
+import _ "test/dep"
+func main() {}
+-- a/a1/a1_test.go --
+package main
+import "testing"
+func TestA(*testing.T) {}
+-- a/a1/external_test.go --
+package main_test
+import "testing"
+func TestExternal(*testing.T) {}
+-- a/a1/default.pgo --
+-- nopgo/nopgo.go --
+package main
+func main() {}
+-- dep/dep.go --
+package dep