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Reapply address space patch after fixing an issue in MemCopyOptimizer.

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Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mon P Wang
2010-04-04 03:10:48 +00:00
parent 0c08d09204
commit 20adc9dc46
28 changed files with 317 additions and 145 deletions
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43
lib/Transforms/Utils/BuildLibCalls.cpp
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@ -109,15 +109,16 @@ Value *llvm::EmitStrNCpy(Value *Dst, Value *Src, Value *Len,
/// EmitMemCpy - Emit a call to the memcpy function to the builder. This always
/// expects that Len has type 'intptr_t' and Dst/Src are pointers.
Value *llvm::EmitMemCpy(Value *Dst, Value *Src, Value *Len,
unsigned Align, IRBuilder<> &B, const TargetData *TD) {
Value *llvm::EmitMemCpy(Value *Dst, Value *Src, Value *Len, unsigned Align,
bool isVolatile, IRBuilder<> &B, const TargetData *TD) {
Module *M = B.GetInsertBlock()->getParent()->getParent();
const Type *Ty = Len->getType();
Value *MemCpy = Intrinsic::getDeclaration(M, Intrinsic::memcpy, &Ty, 1);
const Type *ArgTys[3] = { Dst->getType(), Src->getType(), Len->getType() };
Value *MemCpy = Intrinsic::getDeclaration(M, Intrinsic::memcpy, ArgTys, 3);
Dst = CastToCStr(Dst, B);
Src = CastToCStr(Src, B);
return B.CreateCall4(MemCpy, Dst, Src, Len,
ConstantInt::get(B.getInt32Ty(), Align));
return B.CreateCall5(MemCpy, Dst, Src, Len,
ConstantInt::get(B.getInt32Ty(), Align),
ConstantInt::get(B.getInt1Ty(), isVolatile));
}
/// EmitMemCpyChk - Emit a call to the __memcpy_chk function to the builder.
@ -146,16 +147,18 @@ Value *llvm::EmitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize,
/// EmitMemMove - Emit a call to the memmove function to the builder. This
/// always expects that the size has type 'intptr_t' and Dst/Src are pointers.
Value *llvm::EmitMemMove(Value *Dst, Value *Src, Value *Len,
unsigned Align, IRBuilder<> &B, const TargetData *TD) {
Value *llvm::EmitMemMove(Value *Dst, Value *Src, Value *Len, unsigned Align,
bool isVolatile, IRBuilder<> &B, const TargetData *TD) {
Module *M = B.GetInsertBlock()->getParent()->getParent();
LLVMContext &Context = B.GetInsertBlock()->getContext();
const Type *Ty = TD->getIntPtrType(Context);
Value *MemMove = Intrinsic::getDeclaration(M, Intrinsic::memmove, &Ty, 1);
const Type *ArgTys[3] = { Dst->getType(), Src->getType(),
TD->getIntPtrType(Context) };
Value *MemMove = Intrinsic::getDeclaration(M, Intrinsic::memmove, ArgTys, 3);
Dst = CastToCStr(Dst, B);
Src = CastToCStr(Src, B);
Value *A = ConstantInt::get(B.getInt32Ty(), Align);
return B.CreateCall4(MemMove, Dst, Src, Len, A);
Value *Vol = ConstantInt::get(B.getInt1Ty(), isVolatile);
return B.CreateCall5(MemMove, Dst, Src, Len, A, Vol);
}
/// EmitMemChr - Emit a call to the memchr function. This assumes that Ptr is
@ -206,15 +209,15 @@ Value *llvm::EmitMemCmp(Value *Ptr1, Value *Ptr2,
}
/// EmitMemSet - Emit a call to the memset function
Value *llvm::EmitMemSet(Value *Dst, Value *Val,
Value *Len, IRBuilder<> &B, const TargetData *TD) {
Value *llvm::EmitMemSet(Value *Dst, Value *Val, Value *Len, bool isVolatile,
IRBuilder<> &B, const TargetData *TD) {
Module *M = B.GetInsertBlock()->getParent()->getParent();
Intrinsic::ID IID = Intrinsic::memset;
const Type *Tys[1];
Tys[0] = Len->getType();
Value *MemSet = Intrinsic::getDeclaration(M, IID, Tys, 1);
const Type *Tys[2] = { Dst->getType(), Len->getType() };
Value *MemSet = Intrinsic::getDeclaration(M, IID, Tys, 2);
Value *Align = ConstantInt::get(B.getInt32Ty(), 1);
return B.CreateCall4(MemSet, CastToCStr(Dst, B), Val, Len, Align);
Value *Vol = ConstantInt::get(B.getInt1Ty(), isVolatile);
return B.CreateCall5(MemSet, CastToCStr(Dst, B), Val, Len, Align, Vol);
}
/// EmitUnaryFloatFnCall - Emit a call to the unary function named 'Name' (e.g.
@ -381,7 +384,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
if (Name == "__memcpy_chk") {
if (isFoldable(4, 3, false)) {
EmitMemCpy(CI->getOperand(1), CI->getOperand(2), CI->getOperand(3),
1, B, TD);
1, false, B, TD);
replaceCall(CI->getOperand(1));
return true;
}
@ -396,7 +399,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
if (Name == "__memmove_chk") {
if (isFoldable(4, 3, false)) {
EmitMemMove(CI->getOperand(1), CI->getOperand(2), CI->getOperand(3),
1, B, TD);
1, false, B, TD);
replaceCall(CI->getOperand(1));
return true;
}
@ -407,7 +410,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
if (isFoldable(4, 3, false)) {
Value *Val = B.CreateIntCast(CI->getOperand(2), B.getInt8Ty(),
false);
EmitMemSet(CI->getOperand(1), Val, CI->getOperand(3), B, TD);
EmitMemSet(CI->getOperand(1), Val, CI->getOperand(3), false, B, TD);
replaceCall(CI->getOperand(1));
return true;
}