Classes
class	SwiftAggLowering

Functions
bool	shouldPassIndirectly (CodeGenModule &CGM, ArrayRef< llvm::Type * > types, bool asReturnValue)
	Should an aggregate which expands to the given type sequence be passed/returned indirectly under swiftcall?

CharUnits	getMaximumVoluntaryIntegerSize (CodeGenModule &CGM)
	Return the maximum voluntary integer size for the current target.

CharUnits	getNaturalAlignment (CodeGenModule &CGM, llvm::Type *type)
	Return the Swift CC's notion of the natural alignment of a type.

bool	isLegalIntegerType (CodeGenModule &CGM, llvm::IntegerType *type)
	Is the given integer type "legal" for Swift's perspective on the current platform?

bool	isLegalVectorType (CodeGenModule &CGM, CharUnits vectorSize, llvm::VectorType *vectorTy)
	Is the given vector type "legal" for Swift's perspective on the current platform?

bool	isLegalVectorType (CodeGenModule &CGM, CharUnits vectorSize, llvm::Type *eltTy, unsigned numElts)

std::pair< llvm::Type *, unsigned >	splitLegalVectorType (CodeGenModule &CGM, CharUnits vectorSize, llvm::VectorType *vectorTy)
	Minimally split a legal vector type.

void	legalizeVectorType (CodeGenModule &CGM, CharUnits vectorSize, llvm::VectorType vectorTy, llvm::SmallVectorImpl< llvm::Type > &types)
	Turn a vector type in a sequence of legal component vector types.

bool	mustPassRecordIndirectly (CodeGenModule &CGM, const RecordDecl *record)
	Is the given record type required to be passed and returned indirectly because of language restrictions?

ABIArgInfo	classifyReturnType (CodeGenModule &CGM, CanQualType type)
	Classify the rules for how to return a particular type.

ABIArgInfo	classifyArgumentType (CodeGenModule &CGM, CanQualType type)
	Classify the rules for how to pass a particular type.

void	computeABIInfo (CodeGenModule &CGM, CGFunctionInfo &FI)
	Compute the ABI information of a swiftcall function.

bool	isSwiftErrorLoweredInRegister (CodeGenModule &CGM)
	Is swifterror lowered to a register by the target ABI?

Function Documentation

◆ classifyArgumentType()

ABIArgInfo clang::CodeGen::swiftcall::classifyArgumentType	(	CodeGenModule &	CGM,
		CanQualType	type
	)

Classify the rules for how to pass a particular type.

Definition at line 860 of file SwiftCallingConv.cpp.

References classifyType(), and clang::ast_matchers::type.

Referenced by computeABIInfo().

◆ classifyReturnType()

ABIArgInfo clang::CodeGen::swiftcall::classifyReturnType	(	CodeGenModule &	CGM,
		CanQualType	type
	)

Classify the rules for how to return a particular type.

Definition at line 856 of file SwiftCallingConv.cpp.

References classifyType(), and clang::ast_matchers::type.

Referenced by computeABIInfo().

◆ computeABIInfo()

void clang::CodeGen::swiftcall::computeABIInfo	(	CodeGenModule &	CGM,
		CGFunctionInfo &	FI
	)

Compute the ABI information of a swiftcall function.

This is a private interface for Clang.

Definition at line 865 of file SwiftCallingConv.cpp.

References clang::CodeGen::CGFunctionInfo::arg_begin(), clang::CodeGen::CGFunctionInfo::arg_size(), classifyArgumentType(), classifyReturnType(), clang::CodeGen::CGFunctionInfo::getReturnInfo(), clang::CodeGen::CGFunctionInfo::getReturnType(), and clang::CodeGen::CGFunctionInfoArgInfo::info.

Referenced by clang::CodeGen::CodeGenTypes::arrangeLLVMFunctionInfo().

◆ getMaximumVoluntaryIntegerSize()

CharUnits clang::CodeGen::swiftcall::getMaximumVoluntaryIntegerSize ( CodeGenModule & CGM )

Return the maximum voluntary integer size for the current target.

Definition at line 653 of file SwiftCallingConv.cpp.

References clang::Default, clang::CodeGen::CodeGenModule::getContext(), clang::TargetInfo::getPointerWidth(), clang::ASTContext::getTargetInfo(), and clang::ASTContext::toCharUnitsFromBits().

Referenced by clang::CodeGen::swiftcall::SwiftAggLowering::finish().

◆ getNaturalAlignment()

CharUnits clang::CodeGen::swiftcall::getNaturalAlignment	(	CodeGenModule &	CGM,
		llvm::Type *	type
	)

Return the Swift CC's notion of the natural alignment of a type.

Definition at line 659 of file SwiftCallingConv.cpp.

References clang::CharUnits::fromQuantity(), clang::CodeGen::CodeGenModule::getDataLayout(), clang::CharUnits::getQuantity(), getTypeStoreSize(), and clang::ast_matchers::type.

◆ isLegalIntegerType()

bool clang::CodeGen::swiftcall::isLegalIntegerType	(	CodeGenModule &	CGM,
		llvm::IntegerType *	type
	)

Is the given integer type "legal" for Swift's perspective on the current platform?

Definition at line 668 of file SwiftCallingConv.cpp.

References clang::CodeGen::CodeGenModule::getContext(), clang::ASTContext::getTargetInfo(), and clang::TargetInfo::hasInt128Type().

Referenced by clang::CodeGen::swiftcall::SwiftAggLowering::addTypedData().

◆ isLegalVectorType() [1/2]

bool clang::CodeGen::swiftcall::isLegalVectorType	(	CodeGenModule &	CGM,
		CharUnits	vectorSize,
		llvm::Type *	eltTy,
		unsigned	numElts
	)

Definition at line 695 of file SwiftCallingConv.cpp.

References getSwiftABIInfo(), and clang::CodeGen::SwiftABIInfo::isLegalVectorType().

◆ isLegalVectorType() [2/2]

bool clang::CodeGen::swiftcall::isLegalVectorType	(	CodeGenModule &	CGM,
		CharUnits	vectorSize,
		llvm::VectorType *	vectorTy
	)

Is the given vector type "legal" for Swift's perspective on the current platform?

Definition at line 688 of file SwiftCallingConv.cpp.

References isLegalVectorType().

Referenced by isLegalVectorType(), legalizeVectorType(), and splitLegalVectorType().

◆ isSwiftErrorLoweredInRegister()

bool clang::CodeGen::swiftcall::isSwiftErrorLoweredInRegister ( CodeGenModule & CGM )

Is swifterror lowered to a register by the target ABI?

Definition at line 876 of file SwiftCallingConv.cpp.

References getSwiftABIInfo(), and clang::CodeGen::SwiftABIInfo::isSwiftErrorInRegister().

◆ legalizeVectorType()

void clang::CodeGen::swiftcall::legalizeVectorType	(	CodeGenModule &	CGM,
		CharUnits	vectorSize,
		llvm::VectorType *	vectorTy,
		llvm::SmallVectorImpl< llvm::Type * > &	types
	)

Turn a vector type in a sequence of legal component vector types.

The caller may assume that the sum of the data sizes of the resulting types will equal the data size of the vector type.

Definition at line 716 of file SwiftCallingConv.cpp.

References isLegalVectorType(), and isPowerOf2().

Referenced by clang::CodeGen::swiftcall::SwiftAggLowering::addTypedData().

◆ mustPassRecordIndirectly()

bool clang::CodeGen::swiftcall::mustPassRecordIndirectly	(	CodeGenModule &	CGM,
		const RecordDecl *	record
	)

Is the given record type required to be passed and returned indirectly because of language restrictions?

This considers only mandatory indirectness due to language restrictions, such as C++'s non-trivially-copyable types and Objective-C's __weak references. A record for which this returns true may still be passed indirectly for other reasons, such as being too large to fit in a reasonable number of registers.

Definition at line 790 of file SwiftCallingConv.cpp.

References clang::RecordDecl::canPassInRegisters().

Referenced by classifyType().

◆ shouldPassIndirectly()

bool clang::CodeGen::swiftcall::shouldPassIndirectly	(	CodeGenModule &	CGM,
		ArrayRef< llvm::Type * >	types,
		bool	asReturnValue
	)

Should an aggregate which expands to the given type sequence be passed/returned indirectly under swiftcall?

Definition at line 647 of file SwiftCallingConv.cpp.

References getSwiftABIInfo(), and clang::CodeGen::SwiftABIInfo::shouldPassIndirectly().

◆ splitLegalVectorType()

std::pair< llvm::Type *, unsigned > clang::CodeGen::swiftcall::splitLegalVectorType	(	CodeGenModule &	CGM,
		CharUnits	vectorSize,
		llvm::VectorType *	vectorTy
	)

Minimally split a legal vector type.

Definition at line 702 of file SwiftCallingConv.cpp.