// A single load+store correctly handles overlapping memory in the memmove
// case.
uint64_t Size = MemOpLength->getLimitedValue();
- assert(Size && "0-sized memory transfering should be removed already.");
+ assert(Size && "0-sized memory transferring should be removed already.");
if (Size > 8 || (Size&(Size-1)))
return 0; // If not 1/2/4/8 bytes, exit.
// Check for constant LHS & RHS - in this case we just simplify.
bool Zext = (II->getIntrinsicID() == Intrinsic::arm_neon_vmullu);
VectorType *NewVT = cast<VectorType>(II->getType());
- unsigned NewWidth = NewVT->getElementType()->getIntegerBitWidth();
- if (ConstantDataVector *CV0 = dyn_cast<ConstantDataVector>(Arg0)) {
- if (ConstantDataVector *CV1 = dyn_cast<ConstantDataVector>(Arg1)) {
- VectorType* VT = cast<VectorType>(CV0->getType());
- SmallVector<Constant*, 4> NewElems;
- for (unsigned i = 0; i < VT->getNumElements(); ++i) {
- APInt CV0E =
- (cast<ConstantInt>(CV0->getAggregateElement(i)))->getValue();
- CV0E = Zext ? CV0E.zext(NewWidth) : CV0E.sext(NewWidth);
- APInt CV1E =
- (cast<ConstantInt>(CV1->getAggregateElement(i)))->getValue();
- CV1E = Zext ? CV1E.zext(NewWidth) : CV1E.sext(NewWidth);
- NewElems.push_back(
- ConstantInt::get(NewVT->getElementType(), CV0E * CV1E));
- }
- return ReplaceInstUsesWith(CI, ConstantVector::get(NewElems));
+ if (Constant *CV0 = dyn_cast<Constant>(Arg0)) {
+ if (Constant *CV1 = dyn_cast<Constant>(Arg1)) {
+ CV0 = ConstantExpr::getIntegerCast(CV0, NewVT, /*isSigned=*/!Zext);
+ CV1 = ConstantExpr::getIntegerCast(CV1, NewVT, /*isSigned=*/!Zext);
+
+ return ReplaceInstUsesWith(CI, ConstantExpr::getMul(CV0, CV1));
}
- // Couldn't simplify - cannonicalize constant to the RHS.
+ // Couldn't simplify - canonicalize constant to the RHS.
std::swap(Arg0, Arg1);
}
// Handle mul by one:
- if (ConstantDataVector *CV1 = dyn_cast<ConstantDataVector>(Arg1)) {
+ if (Constant *CV1 = dyn_cast<Constant>(Arg1))
if (ConstantInt *Splat =
- dyn_cast_or_null<ConstantInt>(CV1->getSplatValue())) {
- if (Splat->isOne()) {
- if (Zext)
- return CastInst::CreateZExtOrBitCast(Arg0, II->getType());
- // else
- return CastInst::CreateSExtOrBitCast(Arg0, II->getType());
- }
- }
- }
+ dyn_cast_or_null<ConstantInt>(CV1->getSplatValue()))
+ if (Splat->isOne())
+ return CastInst::CreateIntegerCast(Arg0, II->getType(),
+ /*isSigned=*/!Zext);
break;
}
if (!CI->isLosslessCast())
return false;
- // The size of ByVal arguments is derived from the type, so we
+ // The size of ByVal or InAlloca arguments is derived from the type, so we
// can't change to a type with a different size. If the size were
// passed explicitly we could avoid this check.
- if (!CS.isByValArgument(ix))
+ if (!CS.isByValOrInAllocaArgument(ix))
return true;
Type* SrcTy =
Type *OldRetTy = Caller->getType();
Type *NewRetTy = FT->getReturnType();
- if (NewRetTy->isStructTy())
- return false; // TODO: Handle multiple return values.
-
// Check to see if we are changing the return type...
if (OldRetTy != NewRetTy) {
- if (Callee->isDeclaration() &&
- // Conversion is ok if changing from one pointer type to another or from
- // a pointer to an integer of the same size.
- !((OldRetTy->isPointerTy() || !TD ||
- OldRetTy == TD->getIntPtrType(Caller->getContext())) &&
- (NewRetTy->isPointerTy() || !TD ||
- NewRetTy == TD->getIntPtrType(Caller->getContext()))))
- return false; // Cannot transform this return value.
- if (!Caller->use_empty() &&
- // void -> non-void is handled specially
- !NewRetTy->isVoidTy() &&
- !CastInst::isBitCastable(NewRetTy, OldRetTy))
+ if (NewRetTy->isStructTy())
+ return false; // TODO: Handle multiple return values.
+
+ if (!CastInst::isBitCastable(NewRetTy, OldRetTy)) {
+ if (Callee->isDeclaration())
+ return false; // Cannot transform this return value.
+
+ if (!Caller->use_empty() &&
+ // void -> non-void is handled specially
+ !NewRetTy->isVoidTy())
return false; // Cannot transform this return value.
+ }
if (!CallerPAL.isEmpty() && !Caller->use_empty()) {
AttrBuilder RAttrs(CallerPAL, AttributeSet::ReturnIndex);
Type *ParamTy = FT->getParamType(i);
Type *ActTy = (*AI)->getType();
- if (!CastInst::isBitCastable(ActTy, ParamTy)) {
+ if (!CastInst::isBitCastable(ActTy, ParamTy))
return false; // Cannot transform this parameter value.
- }
if (AttrBuilder(CallerPAL.getParamAttributes(i + 1), i + 1).
hasAttributes(AttributeFuncs::
typeIncompatible(ParamTy, i + 1), i + 1))
return false; // Attribute not compatible with transformed value.
+ if (CS.isInAllocaArgument(i))
+ return false; // Cannot transform to and from inalloca.
+
// If the parameter is passed as a byval argument, then we have to have a
// sized type and the sized type has to have the same size as the old type.
if (ParamTy != ActTy &&
if (ParamPTy == 0 || !ParamPTy->getElementType()->isSized() || TD == 0)
return false;
- Type *CurElTy = cast<PointerType>(ActTy)->getElementType();
+ Type *CurElTy = ActTy->getPointerElementType();
if (TD->getTypeAllocSize(CurElTy) !=
TD->getTypeAllocSize(ParamPTy->getElementType()))
return false;
}
-
- // Converting from one pointer type to another or between a pointer and an
- // integer of the same size is safe even if we do not have a body.
- bool isConvertible = ActTy == ParamTy ||
- (TD && ((ParamTy->isPointerTy() ||
- ParamTy == TD->getIntPtrType(Caller->getContext())) &&
- (ActTy->isPointerTy() ||
- ActTy == TD->getIntPtrType(Caller->getContext()))));
- if (Callee->isDeclaration() && !isConvertible)
- return false;
}
if (Callee->isDeclaration()) {
if (!Caller->use_empty())
ReplaceInstUsesWith(*Caller, NV);
+ else if (Caller->hasValueHandle())
+ ValueHandleBase::ValueIsRAUWd(Caller, NV);
EraseInstFromFunction(*Caller);
return true;
projects / oota-llvm.git / blobdiff