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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 | 46fd7a6ef8766d5d1b5816e9f2ceff51d5ceb006 (patch) | |
| tree | 86fd54646f1e202529cbe356c5f6d9cc1fff7a2f /lib/Transforms/Scalar/LoopStrengthReduce.cpp | |
| parent | d578a40853ab54f6172c2ca350626edacc45846c (diff) | |
Do one lookup instead of two.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112434 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 64d493c514..8370c08d2e 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/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; |