Do one lookup instead of two.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112434 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 64d493c..8370c08 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -161,9 +161,10 @@
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;