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change some vectors to smallvectors. This speeds up instcombine on 447.dealII

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by 5%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34332 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-02-15 22:48:32 +00:00
parent b3ff6b7539
commit 72588fc3f4
1 changed files with 3 additions and 3 deletions
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6
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -7748,9 +7748,9 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
// is a getelementptr instruction, combine the indices of the two
// getelementptr instructions into a single instruction.
//
std::vector<Value*> SrcGEPOperands;
SmallVector<Value*, 8> SrcGEPOperands;
if (User *Src = dyn_castGetElementPtr(PtrOp))
SrcGEPOperands.assign(Src->op_begin(), Src->op_end());
SrcGEPOperands.append(Src->op_begin(), Src->op_end());
if (!SrcGEPOperands.empty()) {
// Note that if our source is a gep chain itself that we wait for that
@ -7761,7 +7761,7 @@ Instruction *InstCombiner::visitGetElementPtrInst(GetElementPtrInst &GEP) {
cast<Instruction>(SrcGEPOperands[0])->getNumOperands() == 2)
return 0; // Wait until our source is folded to completion.
std::vector<Value *> Indices;
SmallVector<Value*, 8> Indices;
// Find out whether the last index in the source GEP is a sequential idx.
bool EndsWithSequential = false;