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| author | Dan Gohman <gohman@apple.com> | 2010-08-29 15:18:49 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-08-29 15:18:49 +0000 |
| commit | 4f13bbfefc1d60fe399008e40701fc2bfa9d7f36 (patch) | |
| tree | 4e79f5c2e718541b1319a85aa72f3c5b6e02a8a0 /llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | |
| parent | d1da5cdfee4c6deaad7a9a191f09416fb1c418b6 (diff) | |
| download | bcm5719-llvm-4f13bbfefc1d60fe399008e40701fc2bfa9d7f36.tar.gz bcm5719-llvm-4f13bbfefc1d60fe399008e40701fc2bfa9d7f36.zip | |
Do one lookup instead of two.
llvm-svn: 112434
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 64d493c514d..8370c08d2e1 100644 --- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -161,9 +161,10 @@ RegUseTracker::DropUse(size_t LUIdx) { bool RegUseTracker::isRegUsedByUsesOtherThan(const SCEV *Reg, size_t LUIdx) const { - if (!RegUsesMap.count(Reg)) return false; - const SmallBitVector &UsedByIndices = - RegUsesMap.find(Reg)->second.UsedByIndices; + RegUsesTy::const_iterator I = RegUsesMap.find(Reg); + if (I == RegUsesMap.end()) + return false; + const SmallBitVector &UsedByIndices = I->second.UsedByIndices; int i = UsedByIndices.find_first(); if (i == -1) return false; if ((size_t)i != LUIdx) return true; |
