diff options
Diffstat (limited to 'lib/CodeGen/IntrinsicLowering.cpp')
| -rw-r--r-- | lib/CodeGen/IntrinsicLowering.cpp | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/lib/CodeGen/IntrinsicLowering.cpp b/lib/CodeGen/IntrinsicLowering.cpp index ee2f79e5b5..320c5a5751 100644 --- a/lib/CodeGen/IntrinsicLowering.cpp +++ b/lib/CodeGen/IntrinsicLowering.cpp @@ -394,17 +394,27 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) { } case Intrinsic::memset_i32: { static Constant *MemsetFCache = 0; - Value * Size = cast<Value>(CI->op_end()-1); - if (Size->getType() != TD.getIntPtrType()) - Size->replaceAllUsesWith(new ZExtInst(Size, TD.getIntPtrType())); + Value *Size = cast<Value>(CI->op_end()-1); + const Type *IntPtr = 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, (*(CI->op_begin()+1))->getType(), MemsetFCache); } case Intrinsic::memset_i64: { static Constant *MemsetFCache = 0; - Value * Size = cast<Value>(CI->op_end()-1); - if (Size->getType() != TD.getIntPtrType()) - Size->replaceAllUsesWith(new TruncInst(Size, TD.getIntPtrType())); + Value *Size = cast<Value>(CI->op_end()-1); + const Type *IntPtr = 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, (*(CI->op_begin()+1))->getType(), MemsetFCache); break; |