Use more specific types to avoid casts. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94863 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2010-01-30 00:41:10 +00:00
parent 8ad1f0e284
commit 6ecfccfd55

View File

@ -115,9 +115,9 @@ static Instruction *InstCombineLoadCast(InstCombiner &IC, LoadInst &LI,
// Okay, we are casting from one integer or pointer type to another of // Okay, we are casting from one integer or pointer type to another of
// the same size. Instead of casting the pointer before the load, cast // the same size. Instead of casting the pointer before the load, cast
// the result of the loaded value. // the result of the loaded value.
Value *NewLoad = LoadInst *NewLoad =
IC.Builder->CreateLoad(CastOp, LI.isVolatile(), CI->getName()); IC.Builder->CreateLoad(CastOp, LI.isVolatile(), CI->getName());
cast<LoadInst>(NewLoad)->setAlignment(LI.getAlignment()); NewLoad->setAlignment(LI.getAlignment());
// Now cast the result of the load. // Now cast the result of the load.
return new BitCastInst(NewLoad, LI.getType()); return new BitCastInst(NewLoad, LI.getType());
} }
@ -202,12 +202,12 @@ Instruction *InstCombiner::visitLoadInst(LoadInst &LI) {
// load (select (Cond, &V1, &V2)) --> select(Cond, load &V1, load &V2). // load (select (Cond, &V1, &V2)) --> select(Cond, load &V1, load &V2).
if (isSafeToLoadUnconditionally(SI->getOperand(1), SI, TD) && if (isSafeToLoadUnconditionally(SI->getOperand(1), SI, TD) &&
isSafeToLoadUnconditionally(SI->getOperand(2), SI, TD)) { isSafeToLoadUnconditionally(SI->getOperand(2), SI, TD)) {
Value *V1 = Builder->CreateLoad(SI->getOperand(1), LoadInst *V1 = Builder->CreateLoad(SI->getOperand(1),
SI->getOperand(1)->getName()+".val"); SI->getOperand(1)->getName()+".val");
Value *V2 = Builder->CreateLoad(SI->getOperand(2), LoadInst *V2 = Builder->CreateLoad(SI->getOperand(2),
SI->getOperand(2)->getName()+".val"); SI->getOperand(2)->getName()+".val");
cast<LoadInst>(V1)->setAlignment(LI.getAlignment()); V1->setAlignment(LI.getAlignment());
cast<LoadInst>(V2)->setAlignment(LI.getAlignment()); V2->setAlignment(LI.getAlignment());
return SelectInst::Create(SI->getCondition(), V1, V2); return SelectInst::Create(SI->getCondition(), V1, V2);
} }