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cmd/compile: enhance postorder computation and repair loop finder

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Replace derecursed postorder computation with one that
mimics DFS traversal.

Corrected outerinner function in loopfinder

Leave enhanced checks in place.

Change-Id: I657ba5e89c88941028d6d4c72e9f9056e30f1ce8
Reviewed-on: https://go-review.googlesource.com/40872
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
David Chase 2017-04-17 10:17:09 -04:00
parent e956dcbdb5
commit 073297ff68
5 changed files with 108 additions and 33 deletions
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1
src/cmd/compile/fmt_test.go
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@ -638,7 +638,6 @@ var knownFormats = map[string]string{
"cmd/compile/internal/ssa.Type %s": "",
"cmd/compile/internal/ssa.Type %v": "",
"cmd/compile/internal/ssa.ValAndOff %s": "",
"cmd/compile/internal/ssa.markKind %d": "",
"cmd/compile/internal/ssa.rbrank %d": "",
"cmd/compile/internal/ssa.regMask %d": "",
"cmd/compile/internal/ssa.register %d": "",