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-rw-r--r--lib/CodeGen/CGCall.cpp285
1 files changed, 168 insertions, 117 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index f8783ad08d00..6ae2d0c96775 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -69,14 +69,14 @@ static CanQualType GetReturnType(QualType RetTy) {
const CGFunctionInfo &
CodeGenTypes::getFunctionInfo(CanQual<FunctionNoProtoType> FTNP) {
return getFunctionInfo(FTNP->getResultType().getUnqualifiedType(),
- llvm::SmallVector<CanQualType, 16>(),
+ SmallVector<CanQualType, 16>(),
FTNP->getExtInfo());
}
/// \param Args - contains any initial parameters besides those
/// in the formal type
static const CGFunctionInfo &getFunctionInfo(CodeGenTypes &CGT,
- llvm::SmallVectorImpl<CanQualType> &ArgTys,
+ SmallVectorImpl<CanQualType> &ArgTys,
CanQual<FunctionProtoType> FTP) {
// FIXME: Kill copy.
for (unsigned i = 0, e = FTP->getNumArgs(); i != e; ++i)
@@ -87,7 +87,7 @@ static const CGFunctionInfo &getFunctionInfo(CodeGenTypes &CGT,
const CGFunctionInfo &
CodeGenTypes::getFunctionInfo(CanQual<FunctionProtoType> FTP) {
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
return ::getFunctionInfo(*this, ArgTys, FTP);
}
@@ -113,7 +113,7 @@ static CallingConv getCallingConventionForDecl(const Decl *D) {
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXRecordDecl *RD,
const FunctionProtoType *FTP) {
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
// Add the 'this' pointer.
ArgTys.push_back(GetThisType(Context, RD));
@@ -123,7 +123,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXRecordDecl *RD,
}
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXMethodDecl *MD) {
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
assert(!isa<CXXConstructorDecl>(MD) && "wrong method for contructors!");
assert(!isa<CXXDestructorDecl>(MD) && "wrong method for destructors!");
@@ -137,7 +137,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXMethodDecl *MD) {
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXConstructorDecl *D,
CXXCtorType Type) {
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
ArgTys.push_back(GetThisType(Context, D->getParent()));
CanQualType ResTy = Context.VoidTy;
@@ -154,7 +154,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXConstructorDecl *D,
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXDestructorDecl *D,
CXXDtorType Type) {
- llvm::SmallVector<CanQualType, 2> ArgTys;
+ SmallVector<CanQualType, 2> ArgTys;
ArgTys.push_back(GetThisType(Context, D->getParent()));
CanQualType ResTy = Context.VoidTy;
@@ -180,11 +180,11 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const FunctionDecl *FD) {
}
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const ObjCMethodDecl *MD) {
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
ArgTys.push_back(Context.getCanonicalParamType(MD->getSelfDecl()->getType()));
ArgTys.push_back(Context.getCanonicalParamType(Context.getObjCSelType()));
// FIXME: Kill copy?
- for (ObjCMethodDecl::param_iterator i = MD->param_begin(),
+ for (ObjCMethodDecl::param_const_iterator i = MD->param_begin(),
e = MD->param_end(); i != e; ++i) {
ArgTys.push_back(Context.getCanonicalParamType((*i)->getType()));
}
@@ -216,7 +216,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(QualType ResTy,
const CallArgList &Args,
const FunctionType::ExtInfo &Info) {
// FIXME: Kill copy.
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
for (CallArgList::const_iterator i = Args.begin(), e = Args.end();
i != e; ++i)
ArgTys.push_back(Context.getCanonicalParamType(i->Ty));
@@ -227,7 +227,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(QualType ResTy,
const FunctionArgList &Args,
const FunctionType::ExtInfo &Info) {
// FIXME: Kill copy.
- llvm::SmallVector<CanQualType, 16> ArgTys;
+ SmallVector<CanQualType, 16> ArgTys;
for (FunctionArgList::const_iterator i = Args.begin(), e = Args.end();
i != e; ++i)
ArgTys.push_back(Context.getCanonicalParamType((*i)->getType()));
@@ -235,15 +235,15 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(QualType ResTy,
}
const CGFunctionInfo &CodeGenTypes::getNullaryFunctionInfo() {
- llvm::SmallVector<CanQualType, 1> args;
+ SmallVector<CanQualType, 1> args;
return getFunctionInfo(getContext().VoidTy, args, FunctionType::ExtInfo());
}
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(CanQualType ResTy,
- const llvm::SmallVectorImpl<CanQualType> &ArgTys,
+ const SmallVectorImpl<CanQualType> &ArgTys,
const FunctionType::ExtInfo &Info) {
#ifndef NDEBUG
- for (llvm::SmallVectorImpl<CanQualType>::const_iterator
+ for (SmallVectorImpl<CanQualType>::const_iterator
I = ArgTys.begin(), E = ArgTys.end(); I != E; ++I)
assert(I->isCanonicalAsParam());
#endif
@@ -312,50 +312,65 @@ CGFunctionInfo::CGFunctionInfo(unsigned _CallingConvention,
/***/
void CodeGenTypes::GetExpandedTypes(QualType type,
- llvm::SmallVectorImpl<llvm::Type*> &expandedTypes) {
- const RecordType *RT = type->getAsStructureType();
- assert(RT && "Can only expand structure types.");
- const RecordDecl *RD = RT->getDecl();
- assert(!RD->hasFlexibleArrayMember() &&
- "Cannot expand structure with flexible array.");
-
- for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
+ SmallVectorImpl<llvm::Type*> &expandedTypes) {
+ if (const ConstantArrayType *AT = Context.getAsConstantArrayType(type)) {
+ uint64_t NumElts = AT->getSize().getZExtValue();
+ for (uint64_t Elt = 0; Elt < NumElts; ++Elt)
+ GetExpandedTypes(AT->getElementType(), expandedTypes);
+ } else if (const RecordType *RT = type->getAsStructureType()) {
+ const RecordDecl *RD = RT->getDecl();
+ assert(!RD->hasFlexibleArrayMember() &&
+ "Cannot expand structure with flexible array.");
+ for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
i != e; ++i) {
- const FieldDecl *FD = *i;
- assert(!FD->isBitField() &&
- "Cannot expand structure with bit-field members.");
-
- QualType fieldType = FD->getType();
- if (fieldType->isRecordType())
- GetExpandedTypes(fieldType, expandedTypes);
- else
- expandedTypes.push_back(ConvertType(fieldType));
- }
+ const FieldDecl *FD = *i;
+ assert(!FD->isBitField() &&
+ "Cannot expand structure with bit-field members.");
+ GetExpandedTypes(FD->getType(), expandedTypes);
+ }
+ } else if (const ComplexType *CT = type->getAs<ComplexType>()) {
+ llvm::Type *EltTy = ConvertType(CT->getElementType());
+ expandedTypes.push_back(EltTy);
+ expandedTypes.push_back(EltTy);
+ } else
+ expandedTypes.push_back(ConvertType(type));
}
llvm::Function::arg_iterator
CodeGenFunction::ExpandTypeFromArgs(QualType Ty, LValue LV,
llvm::Function::arg_iterator AI) {
- const RecordType *RT = Ty->getAsStructureType();
- assert(RT && "Can only expand structure types.");
-
- RecordDecl *RD = RT->getDecl();
assert(LV.isSimple() &&
"Unexpected non-simple lvalue during struct expansion.");
llvm::Value *Addr = LV.getAddress();
- for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
+
+ if (const ConstantArrayType *AT = getContext().getAsConstantArrayType(Ty)) {
+ unsigned NumElts = AT->getSize().getZExtValue();
+ QualType EltTy = AT->getElementType();
+ for (unsigned Elt = 0; Elt < NumElts; ++Elt) {
+ llvm::Value *EltAddr = Builder.CreateConstGEP2_32(Addr, 0, Elt);
+ LValue LV = MakeAddrLValue(EltAddr, EltTy);
+ AI = ExpandTypeFromArgs(EltTy, LV, AI);
+ }
+ } else if (const RecordType *RT = Ty->getAsStructureType()) {
+ RecordDecl *RD = RT->getDecl();
+ for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
i != e; ++i) {
- FieldDecl *FD = *i;
- QualType FT = FD->getType();
+ FieldDecl *FD = *i;
+ QualType FT = FD->getType();
- // FIXME: What are the right qualifiers here?
- LValue LV = EmitLValueForField(Addr, FD, 0);
- if (CodeGenFunction::hasAggregateLLVMType(FT)) {
+ // FIXME: What are the right qualifiers here?
+ LValue LV = EmitLValueForField(Addr, FD, 0);
AI = ExpandTypeFromArgs(FT, LV, AI);
- } else {
- EmitStoreThroughLValue(RValue::get(AI), LV);
- ++AI;
}
+ } else if (const ComplexType *CT = Ty->getAs<ComplexType>()) {
+ QualType EltTy = CT->getElementType();
+ llvm::Value *RealAddr = Builder.CreateStructGEP(Addr, 0, "real");
+ EmitStoreThroughLValue(RValue::get(AI++), MakeAddrLValue(RealAddr, EltTy));
+ llvm::Value *ImagAddr = Builder.CreateStructGEP(Addr, 0, "imag");
+ EmitStoreThroughLValue(RValue::get(AI++), MakeAddrLValue(ImagAddr, EltTy));
+ } else {
+ EmitStoreThroughLValue(RValue::get(AI), LV);
+ ++AI;
}
return AI;
@@ -367,12 +382,12 @@ CodeGenFunction::ExpandTypeFromArgs(QualType Ty, LValue LV,
/// with an in-memory size smaller than DstSize.
static llvm::Value *
EnterStructPointerForCoercedAccess(llvm::Value *SrcPtr,
- const llvm::StructType *SrcSTy,
+ llvm::StructType *SrcSTy,
uint64_t DstSize, CodeGenFunction &CGF) {
// We can't dive into a zero-element struct.
if (SrcSTy->getNumElements() == 0) return SrcPtr;
- const llvm::Type *FirstElt = SrcSTy->getElementType(0);
+ llvm::Type *FirstElt = SrcSTy->getElementType(0);
// If the first elt is at least as large as what we're looking for, or if the
// first element is the same size as the whole struct, we can enter it.
@@ -386,9 +401,9 @@ EnterStructPointerForCoercedAccess(llvm::Value *SrcPtr,
SrcPtr = CGF.Builder.CreateConstGEP2_32(SrcPtr, 0, 0, "coerce.dive");
// If the first element is a struct, recurse.
- const llvm::Type *SrcTy =
+ llvm::Type *SrcTy =
cast<llvm::PointerType>(SrcPtr->getType())->getElementType();
- if (const llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy))
+ if (llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy))
return EnterStructPointerForCoercedAccess(SrcPtr, SrcSTy, DstSize, CGF);
return SrcPtr;
@@ -398,7 +413,7 @@ EnterStructPointerForCoercedAccess(llvm::Value *SrcPtr,
/// are either integers or pointers. This does a truncation of the value if it
/// is too large or a zero extension if it is too small.
static llvm::Value *CoerceIntOrPtrToIntOrPtr(llvm::Value *Val,
- const llvm::Type *Ty,
+ llvm::Type *Ty,
CodeGenFunction &CGF) {
if (Val->getType() == Ty)
return Val;
@@ -412,7 +427,7 @@ static llvm::Value *CoerceIntOrPtrToIntOrPtr(llvm::Value *Val,
Val = CGF.Builder.CreatePtrToInt(Val, CGF.IntPtrTy, "coerce.val.pi");
}
- const llvm::Type *DestIntTy = Ty;
+ llvm::Type *DestIntTy = Ty;
if (isa<llvm::PointerType>(DestIntTy))
DestIntTy = CGF.IntPtrTy;
@@ -433,9 +448,9 @@ static llvm::Value *CoerceIntOrPtrToIntOrPtr(llvm::Value *Val,
/// destination type; in this situation the values of bits which not
/// present in the src are undefined.
static llvm::Value *CreateCoercedLoad(llvm::Value *SrcPtr,
- const llvm::Type *Ty,
+ llvm::Type *Ty,
CodeGenFunction &CGF) {
- const llvm::Type *SrcTy =
+ llvm::Type *SrcTy =
cast<llvm::PointerType>(SrcPtr->getType())->getElementType();
// If SrcTy and Ty are the same, just do a load.
@@ -444,7 +459,7 @@ static llvm::Value *CreateCoercedLoad(llvm::Value *SrcPtr,
uint64_t DstSize = CGF.CGM.getTargetData().getTypeAllocSize(Ty);
- if (const llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy)) {
+ if (llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy)) {
SrcPtr = EnterStructPointerForCoercedAccess(SrcPtr, SrcSTy, DstSize, CGF);
SrcTy = cast<llvm::PointerType>(SrcPtr->getType())->getElementType();
}
@@ -495,7 +510,7 @@ static void BuildAggStore(CodeGenFunction &CGF, llvm::Value *Val,
llvm::Value *DestPtr, bool DestIsVolatile,
bool LowAlignment) {
// Prefer scalar stores to first-class aggregate stores.
- if (const llvm::StructType *STy =
+ if (llvm::StructType *STy =
dyn_cast<llvm::StructType>(Val->getType())) {
for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) {
llvm::Value *EltPtr = CGF.Builder.CreateConstGEP2_32(DestPtr, 0, i);
@@ -519,8 +534,8 @@ static void CreateCoercedStore(llvm::Value *Src,
llvm::Value *DstPtr,
bool DstIsVolatile,
CodeGenFunction &CGF) {
- const llvm::Type *SrcTy = Src->getType();
- const llvm::Type *DstTy =
+ llvm::Type *SrcTy = Src->getType();
+ llvm::Type *DstTy =
cast<llvm::PointerType>(DstPtr->getType())->getElementType();
if (SrcTy == DstTy) {
CGF.Builder.CreateStore(Src, DstPtr, DstIsVolatile);
@@ -529,7 +544,7 @@ static void CreateCoercedStore(llvm::Value *Src,
uint64_t SrcSize = CGF.CGM.getTargetData().getTypeAllocSize(SrcTy);
- if (const llvm::StructType *DstSTy = dyn_cast<llvm::StructType>(DstTy)) {
+ if (llvm::StructType *DstSTy = dyn_cast<llvm::StructType>(DstTy)) {
DstPtr = EnterStructPointerForCoercedAccess(DstPtr, DstSTy, SrcSize, CGF);
DstTy = cast<llvm::PointerType>(DstPtr->getType())->getElementType();
}
@@ -584,11 +599,11 @@ bool CodeGenModule::ReturnTypeUsesFPRet(QualType ResultType) {
default:
return false;
case BuiltinType::Float:
- return getContext().Target.useObjCFPRetForRealType(TargetInfo::Float);
+ return getContext().getTargetInfo().useObjCFPRetForRealType(TargetInfo::Float);
case BuiltinType::Double:
- return getContext().Target.useObjCFPRetForRealType(TargetInfo::Double);
+ return getContext().getTargetInfo().useObjCFPRetForRealType(TargetInfo::Double);
case BuiltinType::LongDouble:
- return getContext().Target.useObjCFPRetForRealType(
+ return getContext().getTargetInfo().useObjCFPRetForRealType(
TargetInfo::LongDouble);
}
}
@@ -614,8 +629,8 @@ CodeGenTypes::GetFunctionType(const CGFunctionInfo &FI, bool isVariadic) {
bool Inserted = FunctionsBeingProcessed.insert(&FI); (void)Inserted;
assert(Inserted && "Recursively being processed?");
- llvm::SmallVector<llvm::Type*, 8> argTypes;
- const llvm::Type *resultType = 0;
+ SmallVector<llvm::Type*, 8> argTypes;
+ llvm::Type *resultType = 0;
const ABIArgInfo &retAI = FI.getReturnInfo();
switch (retAI.getKind()) {
@@ -632,7 +647,7 @@ CodeGenTypes::GetFunctionType(const CGFunctionInfo &FI, bool isVariadic) {
resultType = llvm::Type::getVoidTy(getLLVMContext());
QualType ret = FI.getReturnType();
- const llvm::Type *ty = ConvertType(ret);
+ llvm::Type *ty = ConvertType(ret);
unsigned addressSpace = Context.getTargetAddressSpace(ret);
argTypes.push_back(llvm::PointerType::get(ty, addressSpace));
break;
@@ -653,7 +668,7 @@ CodeGenTypes::GetFunctionType(const CGFunctionInfo &FI, bool isVariadic) {
case ABIArgInfo::Indirect: {
// indirect arguments are always on the stack, which is addr space #0.
- const llvm::Type *LTy = ConvertTypeForMem(it->type);
+ llvm::Type *LTy = ConvertTypeForMem(it->type);
argTypes.push_back(LTy->getPointerTo());
break;
}
@@ -664,7 +679,7 @@ CodeGenTypes::GetFunctionType(const CGFunctionInfo &FI, bool isVariadic) {
// way is semantically identical, but fast-isel and the optimizer
// generally likes scalar values better than FCAs.
llvm::Type *argType = argAI.getCoerceToType();
- if (const llvm::StructType *st = dyn_cast<llvm::StructType>(argType)) {
+ if (llvm::StructType *st = dyn_cast<llvm::StructType>(argType)) {
for (unsigned i = 0, e = st->getNumElements(); i != e; ++i)
argTypes.push_back(st->getElementType(i));
} else {
@@ -685,7 +700,7 @@ CodeGenTypes::GetFunctionType(const CGFunctionInfo &FI, bool isVariadic) {
return llvm::FunctionType::get(resultType, argTypes, isVariadic);
}
-const llvm::Type *CodeGenTypes::GetFunctionTypeForVTable(GlobalDecl GD) {
+llvm::Type *CodeGenTypes::GetFunctionTypeForVTable(GlobalDecl GD) {
const CXXMethodDecl *MD = cast<CXXMethodDecl>(GD.getDecl());
const FunctionProtoType *FPT = MD->getType()->getAs<FunctionProtoType>();
@@ -714,6 +729,8 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
// FIXME: handle sseregparm someday...
if (TargetDecl) {
+ if (TargetDecl->hasAttr<ReturnsTwiceAttr>())
+ FuncAttrs |= llvm::Attribute::ReturnsTwice;
if (TargetDecl->hasAttr<NoThrowAttr>())
FuncAttrs |= llvm::Attribute::NoUnwind;
else if (const FunctionDecl *Fn = dyn_cast<FunctionDecl>(TargetDecl)) {
@@ -724,10 +741,18 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
if (TargetDecl->hasAttr<NoReturnAttr>())
FuncAttrs |= llvm::Attribute::NoReturn;
- if (TargetDecl->hasAttr<ConstAttr>())
+
+ if (TargetDecl->hasAttr<ReturnsTwiceAttr>())
+ FuncAttrs |= llvm::Attribute::ReturnsTwice;
+
+ // 'const' and 'pure' attribute functions are also nounwind.
+ if (TargetDecl->hasAttr<ConstAttr>()) {
FuncAttrs |= llvm::Attribute::ReadNone;
- else if (TargetDecl->hasAttr<PureAttr>())
+ FuncAttrs |= llvm::Attribute::NoUnwind;
+ } else if (TargetDecl->hasAttr<PureAttr>()) {
FuncAttrs |= llvm::Attribute::ReadOnly;
+ FuncAttrs |= llvm::Attribute::NoUnwind;
+ }
if (TargetDecl->hasAttr<MallocAttr>())
RetAttrs |= llvm::Attribute::NoAlias;
}
@@ -763,7 +788,7 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
break;
case ABIArgInfo::Expand:
- assert(0 && "Invalid ABI kind for return argument");
+ llvm_unreachable("Invalid ABI kind for return argument");
}
if (RetAttrs)
@@ -776,7 +801,7 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
else
RegParm = CodeGenOpts.NumRegisterParameters;
- unsigned PointerWidth = getContext().Target.getPointerWidth(0);
+ unsigned PointerWidth = getContext().getTargetInfo().getPointerWidth(0);
for (CGFunctionInfo::const_arg_iterator it = FI.arg_begin(),
ie = FI.arg_end(); it != ie; ++it) {
QualType ParamType = it->type;
@@ -803,7 +828,7 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
}
// FIXME: handle sseregparm someday...
- if (const llvm::StructType *STy =
+ if (llvm::StructType *STy =
dyn_cast<llvm::StructType>(AI.getCoerceToType()))
Index += STy->getNumElements()-1; // 1 will be added below.
break;
@@ -824,7 +849,7 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
continue;
case ABIArgInfo::Expand: {
- llvm::SmallVector<llvm::Type*, 8> types;
+ SmallVector<llvm::Type*, 8> types;
// FIXME: This is rather inefficient. Do we ever actually need to do
// anything here? The result should be just reconstructed on the other
// side, so extension should be a non-issue.
@@ -847,7 +872,7 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI,
static llvm::Value *emitArgumentDemotion(CodeGenFunction &CGF,
const VarDecl *var,
llvm::Value *value) {
- const llvm::Type *varType = CGF.ConvertType(var->getType());
+ llvm::Type *varType = CGF.ConvertType(var->getType());
// This can happen with promotions that actually don't change the
// underlying type, like the enum promotions.
@@ -872,7 +897,7 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(CurFuncDecl)) {
if (FD->hasImplicitReturnZero()) {
QualType RetTy = FD->getResultType().getUnqualifiedType();
- const llvm::Type* LLVMTy = CGM.getTypes().ConvertType(RetTy);
+ llvm::Type* LLVMTy = CGM.getTypes().ConvertType(RetTy);
llvm::Constant* Zero = llvm::Constant::getNullValue(LLVMTy);
Builder.CreateStore(Zero, ReturnValue);
}
@@ -887,6 +912,7 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
// Name the struct return argument.
if (CGM.ReturnTypeUsesSRet(FI)) {
AI->setName("agg.result");
+ AI->addAttr(llvm::Attribute::NoAlias);
++AI;
}
@@ -918,7 +944,7 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
//
// FIXME: We should have a common utility for generating an aggregate
// copy.
- const llvm::Type *I8PtrTy = Builder.getInt8PtrTy();
+ llvm::Type *I8PtrTy = Builder.getInt8PtrTy();
CharUnits Size = getContext().getTypeSizeInChars(Ty);
llvm::Value *Dst = Builder.CreateBitCast(AlignedTemp, I8PtrTy);
llvm::Value *Src = Builder.CreateBitCast(V, I8PtrTy);
@@ -954,9 +980,13 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
if (Arg->getType().isRestrictQualified())
AI->addAttr(llvm::Attribute::NoAlias);
+ // Ensure the argument is the correct type.
+ if (V->getType() != ArgI.getCoerceToType())
+ V = Builder.CreateBitCast(V, ArgI.getCoerceToType());
+
if (isPromoted)
V = emitArgumentDemotion(*this, Arg, V);
-
+
EmitParmDecl(*Arg, V, ArgNo);
break;
}
@@ -985,13 +1015,13 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
// If the coerce-to type is a first class aggregate, we flatten it and
// pass the elements. Either way is semantically identical, but fast-isel
// and the optimizer generally likes scalar values better than FCAs.
- if (const llvm::StructType *STy =
+ if (llvm::StructType *STy =
dyn_cast<llvm::StructType>(ArgI.getCoerceToType())) {
Ptr = Builder.CreateBitCast(Ptr, llvm::PointerType::getUnqual(STy));
for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) {
assert(AI != Fn->arg_end() && "Argument mismatch!");
- AI->setName(Arg->getName() + ".coerce" + llvm::Twine(i));
+ AI->setName(Arg->getName() + ".coerce" + Twine(i));
llvm::Value *EltPtr = Builder.CreateConstGEP2_32(Ptr, 0, i);
Builder.CreateStore(AI++, EltPtr);
}
@@ -1025,7 +1055,7 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
// Name the arguments used in expansion and increment AI.
unsigned Index = 0;
for (; AI != End; ++AI, ++Index)
- AI->setName(Arg->getName() + "." + llvm::Twine(Index));
+ AI->setName(Arg->getName() + "." + Twine(Index));
continue;
}
@@ -1054,12 +1084,12 @@ static llvm::Value *tryEmitFusedAutoreleaseOfResult(CodeGenFunction &CGF,
if (BB->empty()) return 0;
if (&BB->back() != result) return 0;
- const llvm::Type *resultType = result->getType();
+ llvm::Type *resultType = result->getType();
// result is in a BasicBlock and is therefore an Instruction.
llvm::Instruction *generator = cast<llvm::Instruction>(result);
- llvm::SmallVector<llvm::Instruction*,4> insnsToKill;
+ SmallVector<llvm::Instruction*,4> insnsToKill;
// Look for:
// %generator = bitcast %type1* %generator2 to %type2*
@@ -1112,7 +1142,7 @@ static llvm::Value *tryEmitFusedAutoreleaseOfResult(CodeGenFunction &CGF,
}
// Delete all the unnecessary instructions, from latest to earliest.
- for (llvm::SmallVectorImpl<llvm::Instruction*>::iterator
+ for (SmallVectorImpl<llvm::Instruction*>::iterator
i = insnsToKill.begin(), e = insnsToKill.end(); i != e; ++i)
(*i)->eraseFromParent();
@@ -1218,7 +1248,7 @@ void CodeGenFunction::EmitFunctionEpilog(const CGFunctionInfo &FI) {
break;
case ABIArgInfo::Expand:
- assert(0 && "Invalid ABI kind for return argument");
+ llvm_unreachable("Invalid ABI kind for return argument");
}
llvm::Instruction *Ret = RV ? Builder.CreateRet(RV) : Builder.CreateRetVoid();
@@ -1324,7 +1354,7 @@ static void emitWritebackArg(CodeGenFunction &CGF, CallArgList &args,
// The dest and src types don't necessarily match in LLVM terms
// because of the crazy ObjC compatibility rules.
- const llvm::PointerType *destType =
+ llvm::PointerType *destType =
cast<llvm::PointerType>(CGF.ConvertType(CRE->getType()));
// If the address is a constant null, just pass the appropriate null.
@@ -1406,9 +1436,14 @@ void CodeGenFunction::EmitCallArg(CallArgList &args, const Expr *E,
return emitWritebackArg(*this, args, CRE);
}
- if (type->isReferenceType())
+ assert(type->isReferenceType() == E->isGLValue() &&
+ "reference binding to unmaterialized r-value!");
+
+ if (E->isGLValue()) {
+ assert(E->getObjectKind() == OK_Ordinary);
return args.add(EmitReferenceBindingToExpr(E, /*InitializedDecl=*/0),
type);
+ }
if (hasAggregateLLVMType(type) && !E->getType()->isAnyComplexType() &&
isa<ImplicitCastExpr>(E) &&
@@ -1427,8 +1462,8 @@ void CodeGenFunction::EmitCallArg(CallArgList &args, const Expr *E,
/// on the current state of the EH stack.
llvm::CallSite
CodeGenFunction::EmitCallOrInvoke(llvm::Value *Callee,
- llvm::ArrayRef<llvm::Value *> Args,
- const llvm::Twine &Name) {
+ ArrayRef<llvm::Value *> Args,
+ const Twine &Name) {
llvm::BasicBlock *InvokeDest = getInvokeDest();
if (!InvokeDest)
return Builder.CreateCall(Callee, Args, Name);
@@ -1442,8 +1477,8 @@ CodeGenFunction::EmitCallOrInvoke(llvm::Value *Callee,
llvm::CallSite
CodeGenFunction::EmitCallOrInvoke(llvm::Value *Callee,
- const llvm::Twine &Name) {
- return EmitCallOrInvoke(Callee, llvm::ArrayRef<llvm::Value *>(), Name);
+ const Twine &Name) {
+ return EmitCallOrInvoke(Callee, ArrayRef<llvm::Value *>(), Name);
}
static void checkArgMatches(llvm::Value *Elt, unsigned &ArgNo,
@@ -1456,28 +1491,45 @@ static void checkArgMatches(llvm::Value *Elt, unsigned &ArgNo,
}
void CodeGenFunction::ExpandTypeToArgs(QualType Ty, RValue RV,
- llvm::SmallVector<llvm::Value*,16> &Args,
+ SmallVector<llvm::Value*,16> &Args,
llvm::FunctionType *IRFuncTy) {
- const RecordType *RT = Ty->getAsStructureType();
- assert(RT && "Can only expand structure types.");
-
- RecordDecl *RD = RT->getDecl();
- assert(RV.isAggregate() && "Unexpected rvalue during struct expansion");
- llvm::Value *Addr = RV.getAggregateAddr();
- for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
- i != e; ++i) {
- FieldDecl *FD = *i;
- QualType FT = FD->getType();
-
- // FIXME: What are the right qualifiers here?
- LValue LV = EmitLValueForField(Addr, FD, 0);
- if (CodeGenFunction::hasAggregateLLVMType(FT)) {
- ExpandTypeToArgs(FT, RValue::getAggregate(LV.getAddress()),
- Args, IRFuncTy);
- continue;
+ if (const ConstantArrayType *AT = getContext().getAsConstantArrayType(Ty)) {
+ unsigned NumElts = AT->getSize().getZExtValue();
+ QualType EltTy = AT->getElementType();
+ llvm::Value *Addr = RV.getAggregateAddr();
+ for (unsigned Elt = 0; Elt < NumElts; ++Elt) {
+ llvm::Value *EltAddr = Builder.CreateConstGEP2_32(Addr, 0, Elt);
+ LValue LV = MakeAddrLValue(EltAddr, EltTy);
+ RValue EltRV;
+ if (CodeGenFunction::hasAggregateLLVMType(EltTy))
+ EltRV = RValue::getAggregate(LV.getAddress());
+ else
+ EltRV = EmitLoadOfLValue(LV);
+ ExpandTypeToArgs(EltTy, EltRV, Args, IRFuncTy);
}
+ } else if (const RecordType *RT = Ty->getAsStructureType()) {
+ RecordDecl *RD = RT->getDecl();
+ assert(RV.isAggregate() && "Unexpected rvalue during struct expansion");
+ llvm::Value *Addr = RV.getAggregateAddr();
+ for (RecordDecl::field_iterator i = RD->field_begin(), e = RD->field_end();
+ i != e; ++i) {
+ FieldDecl *FD = *i;
+ QualType FT = FD->getType();
- RValue RV = EmitLoadOfLValue(LV);
+ // FIXME: What are the right qualifiers here?
+ LValue LV = EmitLValueForField(Addr, FD, 0);
+ RValue FldRV;
+ if (CodeGenFunction::hasAggregateLLVMType(FT))
+ FldRV = RValue::getAggregate(LV.getAddress());
+ else
+ FldRV = EmitLoadOfLValue(LV);
+ ExpandTypeToArgs(FT, FldRV, Args, IRFuncTy);
+ }
+ } else if (isa<ComplexType>(Ty)) {
+ ComplexPairTy CV = RV.getComplexVal();
+ Args.push_back(CV.first);
+ Args.push_back(CV.second);
+ } else {
assert(RV.isScalar() &&
"Unexpected non-scalar rvalue during struct expansion.");
@@ -1499,7 +1551,7 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
const Decl *TargetDecl,
llvm::Instruction **callOrInvoke) {
// FIXME: We no longer need the types from CallArgs; lift up and simplify.
- llvm::SmallVector<llvm::Value*, 16> Args;
+ SmallVector<llvm::Value*, 16> Args;
// Handle struct-return functions by passing a pointer to the
// location that we would like to return into.
@@ -1630,7 +1682,7 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
// If the coerce-to type is a first class aggregate, we flatten it and
// pass the elements. Either way is semantically identical, but fast-isel
// and the optimizer generally likes scalar values better than FCAs.
- if (const llvm::StructType *STy =
+ if (llvm::StructType *STy =
dyn_cast<llvm::StructType>(ArgInfo.getCoerceToType())) {
SrcPtr = Builder.CreateBitCast(SrcPtr,
llvm::PointerType::getUnqual(STy));
@@ -1668,10 +1720,10 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
// with unprototyped functions.
if (llvm::ConstantExpr *CE = dyn_cast<llvm::ConstantExpr>(Callee))
if (llvm::Function *CalleeF = dyn_cast<llvm::Function>(CE->getOperand(0))) {
- const llvm::PointerType *CurPT=cast<llvm::PointerType>(Callee->getType());
- const llvm::FunctionType *CurFT =
+ llvm::PointerType *CurPT=cast<llvm::PointerType>(Callee->getType());
+ llvm::FunctionType *CurFT =
cast<llvm::FunctionType>(CurPT->getElementType());
- const llvm::FunctionType *ActualFT = CalleeF->getFunctionType();
+ llvm::FunctionType *ActualFT = CalleeF->getFunctionType();
if (CE->getOpcode() == llvm::Instruction::BitCast &&
ActualFT->getReturnType() == CurFT->getReturnType() &&
@@ -1813,11 +1865,10 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
}
case ABIArgInfo::Expand:
- assert(0 && "Invalid ABI kind for return argument");
+ llvm_unreachable("Invalid ABI kind for return argument");
}
- assert(0 && "Unhandled ABIArgInfo::Kind");
- return RValue::get(0);
+ llvm_unreachable("Unhandled ABIArgInfo::Kind");
}
/* VarArg handling */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 19:03:13 +0000