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cmd/compile: don't free the Prog list if we look at it after flush

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Only tests do this, provide them a hook to disable freeing
after flush.

Change-Id: I810c6c51414a93f476a18ba07b807e16092bf8cf
Reviewed-on: https://go-review.googlesource.com/19907
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Keith Randall 2016-02-24 14:07:25 -08:00
parent a9581e2e7a
commit 9c269e6a46
2 changed files with 10 additions and 2 deletions
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2
src/cmd/asm/internal/asm/endtoend_test.go
View File

@ -179,7 +179,7 @@ Diff:
t.Errorf(format, args...) t.Errorf(format, args...)
ok = false ok = false
} }
obj.Flushplist(ctxt) obj.FlushplistNoFree(ctxt)
for p := top; p != nil; p = p.Link { for p := top; p != nil; p = p.Link {
if p.As == obj.ATEXT { if p.As == obj.ATEXT {

10
src/cmd/internal/obj/objfile.go
View File

@ -116,6 +116,12 @@ func Writeobjdirect(ctxt *Link, b *Biobuf) {
} }
func Flushplist(ctxt *Link) { func Flushplist(ctxt *Link) {
flushplist(ctxt, true)
}
func FlushplistNoFree(ctxt *Link) {
flushplist(ctxt, false)
}
func flushplist(ctxt *Link, freeProgs bool) {
var flag int var flag int
var s *LSym var s *LSym
var p *Prog var p *Prog
@ -318,7 +324,9 @@ func Flushplist(ctxt *Link) {
ctxt.Plist = nil ctxt.Plist = nil
ctxt.Plast = nil ctxt.Plast = nil
ctxt.Curp = nil ctxt.Curp = nil
ctxt.freeProgs() if freeProgs {
ctxt.freeProgs()
}
} }
func Writeobjfile(ctxt *Link, b *Biobuf) { func Writeobjfile(ctxt *Link, b *Biobuf) {