fir::details::Attributes Class Reference

#include <flang/Optimizer/CodeGen/Target.h>

Public Types
enum class	IntegerExtension { None , Zero , Sign }

Public Member Functions
	Attributes (unsigned short alignment=0, bool byval=false, bool sret=false, bool append=false, IntegerExtension intExt=IntegerExtension::None, bool indirect=false)
unsigned	getAlignment () const
bool	hasAlignment () const
bool	isByVal () const
bool	isSRet () const
bool	isIndirect () const
bool	isAppend () const
bool	isZeroExt () const
bool	isSignExt () const
llvm::StringRef	getIntExtensionAttrName () const

Detailed Description

Extra information about how to marshal an argument or return value that modifies a signature per a particular ABI's calling convention. Note: llvm::Attribute is not used directly, because its use depends on an LLVMContext.

Member Function Documentation

isIndirect()

bool fir::details::Attributes::isIndirect ( ) const

inline

The argument is passed indirectly: the caller materializes a copy of the aggregate and passes the address of that copy, which the ABI assigns to a register like any other pointer. Like byval this requires the caller to make a copy, but the pointer itself is the argument, so no llvm.byval attribute is attached and the target does not lower it as a by-value aggregate. Some ABIs (e.g. AAPCS64) require this form for aggregates that are too large to be passed in registers.

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The documentation for this class was generated from the following files:

• include/flang/Optimizer/CodeGen/Target.h
• lib/Optimizer/CodeGen/Target.cpp