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eliminate CallInst::ArgOffset

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108522 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif
2010-07-16 09:38:02 +00:00
parent 10bb4211d6
commit a6aac4c5bc
8 changed files with 37 additions and 44 deletions
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6
lib/Transforms/InstCombine/InstCombineCalls.cpp
View File

@@ -772,13 +772,13 @@ protected:
NewInstruction = IC->ReplaceInstUsesWith(*CI, With);
}
bool isFoldable(unsigned SizeCIOp, unsigned SizeArgOp, bool isString) const {
if (ConstantInt *SizeCI = dyn_cast<ConstantInt>(CI->getArgOperand(SizeCIOp - CallInst::ArgOffset))) {
if (ConstantInt *SizeCI = dyn_cast<ConstantInt>(CI->getArgOperand(SizeCIOp))) {
if (SizeCI->isAllOnesValue())
return true;
if (isString)
return SizeCI->getZExtValue() >=
GetStringLength(CI->getArgOperand(SizeArgOp - CallInst::ArgOffset));
if (ConstantInt *Arg = dyn_cast<ConstantInt>(CI->getArgOperand(SizeArgOp - CallInst::ArgOffset)))
GetStringLength(CI->getArgOperand(SizeArgOp));
if (ConstantInt *Arg = dyn_cast<ConstantInt>(CI->getArgOperand(SizeArgOp)))
return SizeCI->getZExtValue() >= Arg->getZExtValue();
}
return false;

6
lib/Transforms/Scalar/CodeGenPrepare.cpp
View File

@@ -548,9 +548,9 @@ protected:
CI->eraseFromParent();
}
bool isFoldable(unsigned SizeCIOp, unsigned, bool) const {
if (ConstantInt *SizeCI = dyn_cast<ConstantInt>(CI->getArgOperand(SizeCIOp
- CallInst::ArgOffset)))
return SizeCI->isAllOnesValue();
if (ConstantInt *SizeCI =
dyn_cast<ConstantInt>(CI->getArgOperand(SizeCIOp)))
return SizeCI->isAllOnesValue();
return false;
}
};

4
lib/Transforms/Scalar/ScalarReplAggregates.cpp
View File

@@ -969,7 +969,7 @@ void SROA::isSafeForScalarRepl(Instruction *I, AllocaInst *AI, uint64_t Offset,
ConstantInt *Length = dyn_cast<ConstantInt>(MI->getLength());
if (Length)
isSafeMemAccess(AI, Offset, Length->getZExtValue(), 0,
UI.getOperandNo() == CallInst::ArgOffset, Info);
UI.getOperandNo() == 0, Info);
else
MarkUnsafe(Info);
} else if (LoadInst *LI = dyn_cast<LoadInst>(User)) {
@@ -1787,7 +1787,7 @@ static bool isOnlyCopiedFromConstantGlobal(Value *V, MemTransferInst *&TheCopy,
if (isOffset) return false;
// If the memintrinsic isn't using the alloca as the dest, reject it.
if (UI.getOperandNo() != CallInst::ArgOffset) return false;
if (UI.getOperandNo() != 0) return false;
// If the source of the memcpy/move is not a constant global, reject it.
if (!PointsToConstantGlobal(MI->getSource()))

10
lib/Transforms/Utils/BuildLibCalls.cpp
View File

@@ -421,7 +421,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(3 + CallInst::ArgOffset, 2 + CallInst::ArgOffset, false)) {
if (isFoldable(3, 2, false)) {
EmitMemCpy(CI->getArgOperand(0), CI->getArgOperand(1), CI->getArgOperand(2),
1, false, B, TD);
replaceCall(CI->getArgOperand(0));
@@ -444,7 +444,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(3 + CallInst::ArgOffset, 2 + CallInst::ArgOffset, false)) {
if (isFoldable(3, 2, false)) {
EmitMemMove(CI->getArgOperand(0), CI->getArgOperand(1), CI->getArgOperand(2),
1, false, B, TD);
replaceCall(CI->getArgOperand(0));
@@ -462,7 +462,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(3 + CallInst::ArgOffset, 2 + CallInst::ArgOffset, false)) {
if (isFoldable(3, 2, false)) {
Value *Val = B.CreateIntCast(CI->getArgOperand(1), B.getInt8Ty(),
false);
EmitMemSet(CI->getArgOperand(0), Val, CI->getArgOperand(2), false, B, TD);
@@ -487,7 +487,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
// st[rp]cpy_chk call which may fail at runtime if the size is too long.
// TODO: It might be nice to get a maximum length out of the possible
// string lengths for varying.
if (isFoldable(2 + CallInst::ArgOffset, 1 + CallInst::ArgOffset, true)) {
if (isFoldable(2, 1, true)) {
Value *Ret = EmitStrCpy(CI->getArgOperand(0), CI->getArgOperand(1), B, TD,
Name.substr(2, 6));
replaceCall(Ret);
@@ -505,7 +505,7 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(3 + CallInst::ArgOffset, 2 + CallInst::ArgOffset, false)) {
if (isFoldable(3, 2, false)) {
Value *Ret = EmitStrNCpy(CI->getArgOperand(0), CI->getArgOperand(1),
CI->getArgOperand(2), B, TD, Name.substr(2, 7));
replaceCall(Ret);