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Fix PR1181 and CodeGen/CBackend/2007-02-05-memset.ll

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33957 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-02-06 06:07:51 +00:00
parent ba1469278e
commit 7d6f77db28
1 changed files with 16 additions and 6 deletions
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22
lib/CodeGen/IntrinsicLowering.cpp
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@ -394,17 +394,27 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
} }
case Intrinsic::memset_i32: { case Intrinsic::memset_i32: {
static Constant *MemsetFCache = 0; static Constant *MemsetFCache = 0;
Value * Size = cast<Value>(CI->op_end()-1); Value *Size = cast<Value>(CI->op_end()-1);
if (Size->getType() != TD.getIntPtrType()) const Type *IntPtr = TD.getIntPtrType();
Size->replaceAllUsesWith(new ZExtInst(Size, TD.getIntPtrType())); if (Size->getType()->getPrimitiveSizeInBits() <
IntPtr->getPrimitiveSizeInBits())
Size = new ZExtInst(Size, IntPtr, "", CI);
else if (Size->getType()->getPrimitiveSizeInBits() >
IntPtr->getPrimitiveSizeInBits())
Size = new TruncInst(Size, IntPtr, "", CI);
ReplaceCallWith("memset", CI, CI->op_begin()+1, CI->op_end()-1, ReplaceCallWith("memset", CI, CI->op_begin()+1, CI->op_end()-1,
(*(CI->op_begin()+1))->getType(), MemsetFCache); (*(CI->op_begin()+1))->getType(), MemsetFCache);
} }
case Intrinsic::memset_i64: { case Intrinsic::memset_i64: {
static Constant *MemsetFCache = 0; static Constant *MemsetFCache = 0;
Value * Size = cast<Value>(CI->op_end()-1); Value *Size = cast<Value>(CI->op_end()-1);
if (Size->getType() != TD.getIntPtrType()) const Type *IntPtr = TD.getIntPtrType();
Size->replaceAllUsesWith(new TruncInst(Size, TD.getIntPtrType())); if (Size->getType()->getPrimitiveSizeInBits() <
IntPtr->getPrimitiveSizeInBits())
Size = new ZExtInst(Size, IntPtr, "", CI);
else if (Size->getType()->getPrimitiveSizeInBits() >
IntPtr->getPrimitiveSizeInBits())
Size = new TruncInst(Size, IntPtr, "", CI);
ReplaceCallWith("memset", CI, CI->op_begin()+1, CI->op_end()-1, ReplaceCallWith("memset", CI, CI->op_begin()+1, CI->op_end()-1,
(*(CI->op_begin()+1))->getType(), MemsetFCache); (*(CI->op_begin()+1))->getType(), MemsetFCache);
break; break;