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Achieve same result but use fewer lines of code.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42985 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-10-15 15:31:35 +00:00
parent 686700e325
commit b9e981304b
1 changed files with 7 additions and 8 deletions
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15
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -7674,14 +7674,13 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
unsigned Align = cast<ConstantInt>(CI.getOperand(4))->getZExtValue();
PointerType *NewPtrTy = NULL;
// Destination pointer type is always i8 *
if (Size == 8)
NewPtrTy = PointerType::get(Type::Int64Ty);
else if (Size == 4)
NewPtrTy = PointerType::get(Type::Int32Ty);
else if (Size == 2)
NewPtrTy = PointerType::get(Type::Int16Ty);
else if (Size == 1)
NewPtrTy = PointerType::get(Type::Int8Ty);
// If Size is 8 then use Int64Ty
// If Size is 4 then use Int32Ty
// If Size is 2 then use Int16Ty
// If Size is 1 then use Int8Ty
if (Size && Size <=8 && !(Size&(Size-1)))
NewPtrTy = PointerType::get(IntegerType::get(Size<<3));
if (NewPtrTy) {
Value *Src = InsertCastBefore(Instruction::BitCast, CI.getOperand(2), NewPtrTy, CI);
Value *Dest = InsertCastBefore(Instruction::BitCast, CI.getOperand(1), NewPtrTy, CI);