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cmd/compile: port liveness analysis to SSA

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Passes toolstash-check -all.

Change-Id: I92c3c25d6c053f971f346f4fa3bbc76419b58183
Reviewed-on: https://go-review.googlesource.com/38087
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Matthew Dempsky 2017-03-09 18:32:17 -08:00
parent ea8c7dae4f
commit 325904fe6a
6 changed files with 422 additions and 1002 deletions
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4
src/cmd/compile/internal/ssa/func.go
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@ -497,6 +497,10 @@ func (f *Func) postorder() []*Block {
return f.cachedPostorder
}
func (f *Func) Postorder() []*Block {
return f.postorder()
}
// Idom returns a map from block ID to the immediate dominator of that block.
// f.Entry.ID maps to nil. Unreachable blocks map to nil as well.
func (f *Func) Idom() []*Block {