1env GO111MODULE=off
2env GODEBUG=gocachetest=1
3
4[!compiler:gc] skip
5[short] skip # clears cache, rebuilds too much
6
7# Set up fresh GOCACHE.
8env GOCACHE=$WORK/gocache
9mkdir $GOCACHE
10
11# Building a trivial non-main package should run compiler the first time.
12go build -x -gcflags=-m lib.go
13stderr 'compile( |\.exe"?)'
14stderr 'lib.go:2.* can inline f'
15
16# ... but not the second, even though it still prints the compiler output.
17go build -x -gcflags=-m lib.go
18! stderr 'compile( |\.exe"?)'
19stderr 'lib.go:2.* can inline f'
20
21# Building a trivial main package should run the compiler and linker the first time.
22go build -x -gcflags=-m -ldflags='-v -w' main.go
23stderr 'compile( |\.exe"?)'
24stderr 'main.go:2.* can inline main' # from compiler
25stderr 'link(\.exe"?)? -'
26stderr '\d+ symbols' # from linker
27
28# ... but not the second, even though it still prints the compiler and linker output.
29go build -x -gcflags=-m -ldflags='-v -w' main.go
30! stderr 'compile( |\.exe"?)'
31stderr 'main.go:2.* can inline main' # from compiler
32! stderr 'link(\.exe"?)? -'
33stderr '\d+ symbols' # from linker
34
35# Running a test should run the compiler, linker, and the test the first time.
36go test -v -x -gcflags=-m -ldflags=-v p
37stderr 'compile( |\.exe"?)'
38stderr 'p_test.go:.*can inline Test' # from compile of p_test
39stderr 'testmain\.go:.*inlin' # from compile of testmain
40stderr 'link(\.exe"?)? -'
41stderr '\d+ symbols' # from linker
42stderr 'p\.test( |\.exe"?)'
43stdout 'TEST' # from test
44
45# ... but not the second, even though it still prints the compiler, linker, and test output.
46go test -v -x -gcflags=-m -ldflags=-v p
47! stderr 'compile( |\.exe"?)'
48stderr 'p_test.go:.*can inline Test' # from compile of p_test
49stderr 'testmain\.go:.*inlin' # from compile of testmain
50! stderr 'link(\.exe"?)? -'
51stderr '\d+ symbols' # from linker
52! stderr 'p\.test( |\.exe"?)'
53stdout 'TEST' # from test
54
55
56-- lib.go --
57package p
58func f(x *int) *int { return x }
59
60-- main.go --
61package main
62func main() {}
63
64-- p/p_test.go --
65package p
66import "testing"
67func Test(t *testing.T) {println("TEST")}
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