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cmd/compile: minor cleanup in debug code

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Change-Id: I9885606801b9c8fcb62c16d0856025c4e83e658b
Reviewed-on: https://go-review.googlesource.com/38650
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2017-03-17 17:09:07 -07:00
parent 26be4b9113
commit b3a8beb9d1
1 changed files with 8 additions and 10 deletions
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18
src/cmd/compile/internal/ssa/func.go
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@ -551,14 +551,13 @@ func (f *Func) invalidateCFG() {
// opening the file. // opening the file.
func (f *Func) DebugHashMatch(evname, name string) bool { func (f *Func) DebugHashMatch(evname, name string) bool {
evhash := os.Getenv(evname) evhash := os.Getenv(evname)
if evhash == "" { switch evhash {
case "":
return true // default behavior with no EV is "on" return true // default behavior with no EV is "on"
} case "y", "Y":
if evhash == "y" || evhash == "Y" {
f.logDebugHashMatch(evname, name) f.logDebugHashMatch(evname, name)
return true return true
} case "n", "N":
if evhash == "n" || evhash == "N" {
return false return false
} }
// Check the hash of the name against a partial input hash. // Check the hash of the name against a partial input hash.
@ -597,11 +596,10 @@ func (f *Func) logDebugHashMatch(evname, name string) {
file := f.logfiles[evname] file := f.logfiles[evname]
if file == nil { if file == nil {
file = os.Stdout file = os.Stdout
tmpfile := os.Getenv("GSHS_LOGFILE") if tmpfile := os.Getenv("GSHS_LOGFILE"); tmpfile != "" {
if tmpfile != "" { var err error
var ok error file, err = os.Create(tmpfile)
file, ok = os.Create(tmpfile) if err != nil {
if ok != nil {
f.Fatalf("could not open hash-testing logfile %s", tmpfile) f.Fatalf("could not open hash-testing logfile %s", tmpfile)
} }
} }