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cmd/compile: move dumpFileSeq

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I noticed that there is a Todo comment here. This variable is only used for filename when dump a function's ssa passes result in details. It is no problem to print a function alone, but may be edited by not only one goroutine if dump multiple functions at the same time. Although it looks only dump one function's ssa passes now. As far as I am concerned this variable can be a member variable of the struct Func. I'm not sure if this change is necessary. Looking forward to your advices, thank you very much.

Change-Id: I35dd7247889e0cc7f19c0b400b597206592dee75
Reviewed-on: https://go-review.googlesource.com/c/go/+/244918
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
This commit is contained in:
surechen 2020-07-27 12:00:19 +08:00 committed by Keith Randall
parent 99d6e3eec2
commit 17553c6e71
2 changed files with 6 additions and 8 deletions
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7
src/cmd/compile/internal/ssa/compile.go
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@ -160,15 +160,12 @@ func Compile(f *Func) {
phaseName = ""
}
// TODO: should be a config field
var dumpFileSeq int
// dumpFile creates a file from the phase name and function name
// Dumping is done to files to avoid buffering huge strings before
// output.
func (f *Func) dumpFile(phaseName string) {
dumpFileSeq++
fname := fmt.Sprintf("%s_%02d__%s.dump", f.Name, dumpFileSeq, phaseName)
f.dumpFileSeq++
fname := fmt.Sprintf("%s_%02d__%s.dump", f.Name, int(f.dumpFileSeq), phaseName)
fname = strings.Replace(fname, " ", "_", -1)
fname = strings.Replace(fname, "/", "_", -1)
fname = strings.Replace(fname, ":", "_", -1)

7
src/cmd/compile/internal/ssa/func.go
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@ -44,9 +44,10 @@ type Func struct {
PrintOrHtmlSSA bool // true if GOSSAFUNC matches, true even if fe.Log() (spew phase results to stdout) is false.
ruleMatches map[string]int // number of times countRule was called during compilation for any given string
scheduled bool // Values in Blocks are in final order
laidout bool // Blocks are ordered
NoSplit bool // true if function is marked as nosplit. Used by schedule check pass.
scheduled bool // Values in Blocks are in final order
laidout bool // Blocks are ordered
NoSplit bool // true if function is marked as nosplit. Used by schedule check pass.
dumpFileSeq uint8 // the sequence numbers of dump file. (%s_%02d__%s.dump", funcname, dumpFileSeq, phaseName)
// when register allocation is done, maps value ids to locations
RegAlloc []Location