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Do one lookup instead of two.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106415 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-06-21 14:21:47 +00:00
parent 37db6cdaea
commit 3193a689db
1 changed files with 3 additions and 2 deletions
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5
lib/CodeGen/SelectionDAG/FastISel.cpp
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@ -185,8 +185,9 @@ unsigned FastISel::lookUpRegForValue(const Value *V) {
// cache values defined by Instructions across blocks, and other values
// only locally. This is because Instructions already have the SSA
// def-dominates-use requirement enforced.
if (ValueMap.count(V))
return ValueMap[V];
DenseMap<const Value *, unsigned>::iterator I = ValueMap.find(V);
if (I != ValueMap.end())
return I->second;
return LocalValueMap[V];
}