#include <rtlanal.h>

Inheritance diagram for rtx_properties:

Collaboration diagram for rtx_properties:

Public Member Functions
	rtx_properties ()

void	try_to_add_reg (const_rtx x, unsigned int flags=0)

void	try_to_add_dest (const_rtx x, unsigned int flags=0)

void	try_to_add_src (const_rtx x, unsigned int flags=0)

void	try_to_add_pattern (const_rtx pat)

void	try_to_add_note (const_rtx x)

void	try_to_add_insn (const rtx_insn *insn, bool include_notes)

iterator_range< rtx_obj_reference * >	refs () const

size_t	num_refs () const

bool	has_side_effects () const

Data Fields
rtx_obj_reference *	ref_begin

rtx_obj_reference *	ref_iter

rtx_obj_reference *	ref_end

unsigned int	has_asm: 1

unsigned int	has_call: 1

unsigned int	has_pre_post_modify: 1

unsigned int	has_volatile_refs: 1

unsigned int	spare: 28

Detailed Description

Contains information about an rtx or an instruction, including a
list of rtx_obj_references.  The storage backing the list needs
to be filled in by assigning to REF_BEGIN and REF_END.

Constructor & Destructor Documentation

◆ rtx_properties()

rtx_properties::rtx_properties ( )

inline

Member Function Documentation

◆ has_side_effects()

bool rtx_properties::has_side_effects ( ) const

inline

Return true if the rtx has side effects, in the sense of
side_effects_p (except for side_effects_p's special handling
of combine.cc clobbers).

References has_call, has_pre_post_modify, and has_volatile_refs.

◆ num_refs()

size_t rtx_properties::num_refs ( ) const

inline

References ref_begin, and ref_iter.

◆ refs()

iterator_range< rtx_obj_reference * > rtx_properties::refs ( ) const

inline

Return an iterator range for all the references, suitable for
range-based for loops.

References ref_begin, and ref_iter.

◆ try_to_add_dest()

void rtx_properties::try_to_add_dest	(	const_rtx	x,
		unsigned int	flags = 0 )

Add a description of destination X to this object.  FLAGS is a bitmask
of rtx_obj_reference flags that describe the context.

This routine accepts all rtxes that can legitimately appear in a
SET_DEST.

References GET_CODE, GET_MODE, ggc_alloc(), i, rtx_obj_flags::IN_MEM_LOAD, rtx_obj_flags::IN_MEM_STORE, rtx_obj_flags::IN_SUBREG, rtx_obj_flags::IS_READ, rtx_obj_flags::IS_WRITE, LIKELY, MEM_P, MEM_REGNO, read_modify_subreg_p(), ref_end, ref_iter, REG_P, REGNO, rtx_obj_flags::STICKY_FLAGS, SUBREG_REG, try_to_add_dest(), try_to_add_reg(), try_to_add_src(), UNLIKELY, XEXP, XVECEXP, and XVECLEN.

Referenced by try_to_add_dest(), try_to_add_insn(), try_to_add_pattern(), and try_to_add_src().

◆ try_to_add_insn()

void rtx_properties::try_to_add_insn	(	const rtx_insn *	insn,
		bool	include_notes )

Try to add a description of INSN to this object, stopping once
the REF_END limit has been reached.  INCLUDE_NOTES is true if the
description should include REG_EQUAL and REG_EQUIV notes; all such
references will then be marked with rtx_obj_flags::IN_NOTE.

For calls, this description includes all accesses in
CALL_INSN_FUNCTION_USAGE.  It also include all implicit accesses
to global registers by the target function.  However, it does not
include clobbers performed by the target function; callers that want
this information should instead use the function_abi interface.

References CALL_INSN_FUNCTION_USAGE, CALL_P, find_reg_note(), GET_CODE, ggc_alloc(), global_reg_set, global_regs, hard_reg_set_empty_p(), rtx_obj_flags::IS_CLOBBER, rtx_obj_flags::IS_READ, rtx_obj_flags::IS_WRITE, MEM_REGNO, NULL_RTX, PATTERN(), ref_end, ref_iter, REG_NOTE_KIND, REG_NOTES, reg_raw_mode, RTL_CONST_CALL_P, RTL_PURE_CALL_P, targetm, try_to_add_dest(), try_to_add_note(), try_to_add_pattern(), try_to_add_src(), and XEXP.

◆ try_to_add_note()

void rtx_properties::try_to_add_note ( const_rtx x )

inline

Like add_src, but treat X has being part of a REG_EQUAL or
REG_EQUIV note.

References rtx_obj_flags::IN_NOTE, and try_to_add_src().

Referenced by try_to_add_insn().

◆ try_to_add_pattern()

void rtx_properties::try_to_add_pattern ( const_rtx pat )

Try to add a description of instruction pattern PAT to this object,
stopping once the REF_END limit has been reached.

References ASM_OPERANDS_INPUT, ASM_OPERANDS_INPUT_LENGTH, COND_EXEC_CODE, COND_EXEC_TEST, GET_CODE, ggc_alloc(), i, rtx_obj_flags::IS_CLOBBER, last, SET, SET_DEST, SET_SRC, try_to_add_dest(), try_to_add_pattern(), try_to_add_src(), XEXP, XVECEXP, and XVECLEN.

Referenced by try_to_add_insn(), and try_to_add_pattern().

◆ try_to_add_reg()

void rtx_properties::try_to_add_reg	(	const_rtx	x,
		unsigned int	flags = 0 )

Try to add a description of REG X to this object, stopping once
the REF_END limit has been reached.  FLAGS is a bitmask of
rtx_obj_reference flags that describe the context.

References END_REGNO(), GET_MODE, rtx_obj_flags::IS_MULTIREG, ref_end, ref_iter, REG_NREGS, and REGNO.

Referenced by try_to_add_dest(), and try_to_add_src().

◆ try_to_add_src()

void rtx_properties::try_to_add_src	(	const_rtx	x,
		unsigned int	flags = 0 )

Try to add a description of source X to this object, stopping once
the REF_END limit has been reached.  FLAGS is a bitmask of
rtx_obj_reference flags that describe the context.

This routine accepts all rtxes that can legitimately appear in a SET_SRC.

References FOR_EACH_SUBRTX, GET_CODE, GET_MODE, ggc_alloc(), has_asm, has_call, has_pre_post_modify, has_volatile_refs, rtx_obj_flags::IN_MEM_LOAD, rtx_obj_flags::IN_SUBREG, rtx_obj_flags::IS_PRE_POST_MODIFY, rtx_obj_flags::IS_READ, MEM_READONLY_P, MEM_REGNO, MEM_VOLATILE_P, ref_end, ref_iter, rtx_obj_flags::STICKY_FLAGS, SUBREG_REG, try_to_add_dest(), try_to_add_reg(), try_to_add_src(), and XEXP.