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Move the GEP handling in CodeGenPrepare to OptimizeInst().

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llvm-svn: 122944
This commit is contained in:
Cameron Zwarich 2011-01-06 02:44:52 +00:00
parent 40cfb75bd7
commit 314d16039a
1 changed files with 12 additions and 12 deletions
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24
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@ -1003,6 +1003,17 @@ bool CodeGenPrepare::OptimizeInst(Instruction *I) {
MadeChange |= OptimizeMemoryInst(I, SI->getOperand(1),
SI->getOperand(0)->getType(),
SunkAddrs);
} else if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(I)) {
if (GEPI->hasAllZeroIndices()) {
/// The GEP operand must be a pointer, so must its result -> BitCast
Instruction *NC = new BitCastInst(GEPI->getOperand(0), GEPI->getType(),
GEPI->getName(), GEPI);
GEPI->replaceAllUsesWith(NC);
GEPI->eraseFromParent();
++NumGEPsElim;
MadeChange = true;
OptimizeInst(NC);
}
}
return MadeChange;
@ -1031,18 +1042,7 @@ bool CodeGenPrepare::OptimizeBlock(BasicBlock &BB) {
for (BasicBlock::iterator BBI = BB.begin(), E = BB.end(); BBI != E; ) {
Instruction *I = BBI++;
if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(I)) {
if (GEPI->hasAllZeroIndices()) {
/// The GEP operand must be a pointer, so must its result -> BitCast
Instruction *NC = new BitCastInst(GEPI->getOperand(0), GEPI->getType(),
GEPI->getName(), GEPI);
GEPI->replaceAllUsesWith(NC);
GEPI->eraseFromParent();
++NumGEPsElim;
MadeChange = true;
BBI = NC;
}
} else if (CallInst *CI = dyn_cast<CallInst>(I)) {
if (CallInst *CI = dyn_cast<CallInst>(I)) {
// If we found an inline asm expession, and if the target knows how to
// lower it to normal LLVM code, do so now.
if (TLI && isa<InlineAsm>(CI->getCalledValue())) {