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Simplify this code, and avoid using APInt(). This fixes

Browse Source 
(otherwise harmless) uninitialized value warnings that
Duncan found with gcc-4.4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74437 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-06-29 18:25:52 +00:00
parent 9917700af4
commit 23737e0423
1 changed files with 2 additions and 4 deletions
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6
lib/Analysis/ScalarEvolution.cpp
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@ -1048,9 +1048,8 @@ CollectAddOperandsWithScales(DenseMap<const SCEV*, APInt> &M,
SmallVector<const SCEV*, 4> MulOps(Mul->op_begin()+1, Mul->op_end()); SmallVector<const SCEV*, 4> MulOps(Mul->op_begin()+1, Mul->op_end());
const SCEV* Key = SE.getMulExpr(MulOps); const SCEV* Key = SE.getMulExpr(MulOps);
std::pair<DenseMap<const SCEV*, APInt>::iterator, bool> Pair = std::pair<DenseMap<const SCEV*, APInt>::iterator, bool> Pair =
M.insert(std::make_pair(Key, APInt())); M.insert(std::make_pair(Key, NewScale));
if (Pair.second) { if (Pair.second) {
Pair.first->second = NewScale;
NewOps.push_back(Pair.first->first); NewOps.push_back(Pair.first->first);
} else { } else {
Pair.first->second += NewScale; Pair.first->second += NewScale;
@ -1067,9 +1066,8 @@ CollectAddOperandsWithScales(DenseMap<const SCEV*, APInt> &M,
} else { } else {
// An ordinary operand. Update the map. // An ordinary operand. Update the map.
std::pair<DenseMap<const SCEV*, APInt>::iterator, bool> Pair = std::pair<DenseMap<const SCEV*, APInt>::iterator, bool> Pair =
M.insert(std::make_pair(Ops[i], APInt())); M.insert(std::make_pair(Ops[i], Scale));
if (Pair.second) { if (Pair.second) {
Pair.first->second = Scale;
NewOps.push_back(Pair.first->first); NewOps.push_back(Pair.first->first);
} else { } else {
Pair.first->second += Scale; Pair.first->second += Scale;