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Second attempt at fixing the performance regressions introduced

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by my recent GVN improvement.  Looking through a single layer of
PHI nodes when attempting to sink GEPs, we need to iteratively
look through arbitrary PHI nests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120202 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2010-11-27 08:15:55 +00:00
parent 4581dae9ea
commit 35bf4d6d80
2 changed files with 62 additions and 25 deletions
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6
include/llvm/Transforms/Utils/AddrModeMatcher.h
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@@ -39,6 +39,12 @@ struct ExtAddrMode : public TargetLowering::AddrMode {
ExtAddrMode() : BaseReg(0), ScaledReg(0) {}
void print(raw_ostream &OS) const;
void dump() const;
bool operator==(const ExtAddrMode& O) const {
return (BaseReg == O.BaseReg) && (ScaledReg == O.ScaledReg) &&
(BaseGV == O.BaseGV) && (BaseOffs == O.BaseOffs) &&
(HasBaseReg == O.HasBaseReg) && (Scale == O.Scale);
}
};
static inline raw_ostream &operator<<(raw_ostream &OS, const ExtAddrMode &AM) {