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cmd/compile: omit X:framepointer in compile version

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Framepointer is the default now. Only print an X: list
if the settings are _not_ the default.

Before:

$ go tool compile -V
compile version devel +a5f30d9508 Sun Jul 16 14:43:48 2017 -0400 X:framepointer
$ go1.8 tool compile -V
compile version go1.8 X:framepointer
$

After:

$ go tool compile -V
compile version devel +a5f30d9508 Sun Jul 16 14:43:48 2017 -0400
$ go1.9 tool compile -V # imagined
compile version go1.9
$

Perpetuates #18317.

Change-Id: I981ba5c62be32e650a166fc9740703122595639b
Reviewed-on: https://go-review.googlesource.com/49252
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Russ Cox 2017-07-17 10:45:27 -04:00
parent 8bb88fdcc2
commit f0cf740733
3 changed files with 12 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/cmd/internal/objabi/util.go
View file

@ -46,7 +46,6 @@ func Getgoextlinkenabled() string {
}
func init() {
framepointer_enabled = 1 // default
for _, f := range strings.Split(goexperiment, ",") {
if f != "" {
addexp(f)
@ -80,7 +79,7 @@ func addexp(s string) {
}
var (
framepointer_enabled int
framepointer_enabled int = 1
Fieldtrack_enabled int
Preemptibleloops_enabled int
Clobberdead_enabled int
@ -100,6 +99,12 @@ var exper = []struct {
{"clobberdead", &Clobberdead_enabled},
}
var defaultExpstring = Expstring()
func DefaultExpstring() string {
return defaultExpstring
}
func Expstring() string {
buf := "X"
for i := range exper {