GCC Middle and Back End API Reference: gimplify_reg_info Class Reference

GCC Middle and Back End API Reference

#include <gimplify_reg_info.h>

Public Member Functions
	gimplify_reg_info (unsigned num_alternatives, unsigned num_outputs)
	~gimplify_reg_info ()
void	set_output (unsigned alt, int regno)
void	set_input (unsigned alt, int regno)
int	test_alt_output (unsigned alt, int regno) const
int	test_alt_input (unsigned alt, int regno) const
void	set_reg_asm_output (int regno)
int	test_reg_asm_output (int regno) const
void	set_reg_asm_input (int regno)
int	test_reg_asm_input (int regno) const
void	set_early_clobbered (unsigned alt, unsigned output, int regno)
bool	test_early_clobbered_alt (unsigned alt, int regno) const
bool	is_early_clobbered_in_any_output_unequal (unsigned operand, int regno) const
void	set_clobbered (int regno)
bool	is_clobbered (int regno) const

Data Fields
tree	operand

Private Member Functions
int	test (const HARD_REG_SET &regs, int regno) const

Private Attributes
HARD_REG_SET *	m_buf
HARD_REG_SET *	m_alt_output
HARD_REG_SET *	m_alt_input
HARD_REG_SET *	m_early_clobbered_alt
HARD_REG_SET *	m_early_clobbered_output
HARD_REG_SET	m_reg_asm_output
HARD_REG_SET	m_reg_asm_input
const unsigned	m_num_alternatives
const unsigned	m_num_outputs
HARD_REG_SET	m_clobbered

Detailed Description

gimplify_reg_info is used during gimplification while walking over
operands and their corresponding constraints of asm statements in order to
detect errors.

m_alt_output is a mapping describing which registers are potentially used in
which alternative over all outputs.  Similarly for m_alt_input but over all
inputs.

m_early_clobbered_alt is a mapping describing which register is early
clobbered in which alternative over all outputs.

m_early_clobbered_output is the counter part to the prior one, i.e., it
is a mapping describing which register is early clobbered in which operand
over all alternatives.

m_reg_asm_output is the set of registers (including register pairs) used for
register asm output operands.

m_reg_asm_input similar as m_reg_asm_output but for inputs.

Constructor & Destructor Documentation

◆ gimplify_reg_info()

gimplify_reg_info::gimplify_reg_info	(	unsigned	num_alternatives,
		unsigned	num_outputs )

inline

References CLEAR_HARD_REG_SET, i, m_alt_input, m_alt_output, m_buf, m_clobbered, m_early_clobbered_alt, m_early_clobbered_output, m_num_alternatives, m_num_outputs, m_reg_asm_input, m_reg_asm_output, and num_alternatives().

◆ ~gimplify_reg_info()

gimplify_reg_info::~gimplify_reg_info ( )

inline

References m_buf, and m_num_alternatives.

Member Function Documentation

◆ is_clobbered()

bool gimplify_reg_info::is_clobbered ( int regno ) const

inline

References m_clobbered, operand, overlaps_hard_reg_set_p(), TREE_TYPE, and TYPE_MODE.

◆ is_early_clobbered_in_any_output_unequal()

bool gimplify_reg_info::is_early_clobbered_in_any_output_unequal	(	unsigned	operand,
		int	regno ) const

inline

References gcc_checking_assert, m_early_clobbered_output, m_num_outputs, operand, and TEST_HARD_REG_BIT.

◆ set_clobbered()

void gimplify_reg_info::set_clobbered ( int regno )

inline

References m_clobbered, and SET_HARD_REG_BIT.

◆ set_early_clobbered()

void gimplify_reg_info::set_early_clobbered	(	unsigned	alt,
		unsigned	output,
		int	regno )

inline

References add_to_hard_reg_set(), gcc_checking_assert, m_early_clobbered_alt, m_early_clobbered_output, m_num_alternatives, m_num_outputs, operand, TREE_TYPE, and TYPE_MODE.

◆ set_input()

void gimplify_reg_info::set_input	(	unsigned	alt,
		int	regno )

inline

References add_to_hard_reg_set(), gcc_checking_assert, m_alt_input, m_num_alternatives, operand, TREE_TYPE, and TYPE_MODE.

◆ set_output()

void gimplify_reg_info::set_output	(	unsigned	alt,
		int	regno )

inline

References add_to_hard_reg_set(), gcc_checking_assert, m_alt_output, m_num_alternatives, operand, TREE_TYPE, and TYPE_MODE.

◆ set_reg_asm_input()

void gimplify_reg_info::set_reg_asm_input ( int regno )

inline

References add_to_hard_reg_set(), m_reg_asm_input, operand, TREE_TYPE, and TYPE_MODE.

◆ set_reg_asm_output()

void gimplify_reg_info::set_reg_asm_output ( int regno )

inline

References add_to_hard_reg_set(), m_reg_asm_output, operand, TREE_TYPE, and TYPE_MODE.

◆ test()

int gimplify_reg_info::test	(	const HARD_REG_SET &	regs,
		int	regno ) const

inlineprivate

References end_hard_regno(), operand, TEST_HARD_REG_BIT, TREE_TYPE, and TYPE_MODE.

Referenced by test_alt_input(), test_alt_output(), test_reg_asm_input(), and test_reg_asm_output().

◆ test_alt_input()

int gimplify_reg_info::test_alt_input	(	unsigned	alt,
		int	regno ) const

inline

References gcc_checking_assert, m_alt_input, m_num_alternatives, and test().

◆ test_alt_output()

int gimplify_reg_info::test_alt_output	(	unsigned	alt,
		int	regno ) const

inline

References gcc_checking_assert, m_alt_output, m_num_alternatives, and test().

◆ test_early_clobbered_alt()

bool gimplify_reg_info::test_early_clobbered_alt	(	unsigned	alt,
		int	regno ) const

inline

References gcc_checking_assert, m_early_clobbered_alt, m_num_alternatives, and TEST_HARD_REG_BIT.

◆ test_reg_asm_input()

int gimplify_reg_info::test_reg_asm_input ( int regno ) const

inline

References m_reg_asm_input, and test().

◆ test_reg_asm_output()

int gimplify_reg_info::test_reg_asm_output ( int regno ) const

inline

References m_reg_asm_output, and test().

Field Documentation

◆ m_alt_input

HARD_REG_SET* gimplify_reg_info::m_alt_input

private

Referenced by gimplify_reg_info(), set_input(), and test_alt_input().

◆ m_alt_output

HARD_REG_SET* gimplify_reg_info::m_alt_output

private

Referenced by gimplify_reg_info(), set_output(), and test_alt_output().

◆ m_buf

HARD_REG_SET* gimplify_reg_info::m_buf

private

Referenced by gimplify_reg_info(), and ~gimplify_reg_info().

◆ m_clobbered

HARD_REG_SET gimplify_reg_info::m_clobbered

private

Referenced by gimplify_reg_info(), is_clobbered(), and set_clobbered().

◆ m_early_clobbered_alt

HARD_REG_SET* gimplify_reg_info::m_early_clobbered_alt

private

Referenced by gimplify_reg_info(), set_early_clobbered(), and test_early_clobbered_alt().

◆ m_early_clobbered_output

HARD_REG_SET* gimplify_reg_info::m_early_clobbered_output

private

Referenced by gimplify_reg_info(), is_early_clobbered_in_any_output_unequal(), and set_early_clobbered().

◆ m_num_alternatives

const unsigned gimplify_reg_info::m_num_alternatives

private

Referenced by gimplify_reg_info(), set_early_clobbered(), set_input(), set_output(), test_alt_input(), test_alt_output(), test_early_clobbered_alt(), and ~gimplify_reg_info().

◆ m_num_outputs

const unsigned gimplify_reg_info::m_num_outputs

private

Referenced by gimplify_reg_info(), is_early_clobbered_in_any_output_unequal(), and set_early_clobbered().

◆ m_reg_asm_input

HARD_REG_SET gimplify_reg_info::m_reg_asm_input

private

Referenced by gimplify_reg_info(), set_reg_asm_input(), and test_reg_asm_input().

◆ m_reg_asm_output

HARD_REG_SET gimplify_reg_info::m_reg_asm_output

private

Referenced by gimplify_reg_info(), set_reg_asm_output(), and test_reg_asm_output().

◆ operand

tree gimplify_reg_info::operand

Referenced by is_clobbered(), is_early_clobbered_in_any_output_unequal(), set_early_clobbered(), set_input(), set_output(), set_reg_asm_input(), set_reg_asm_output(), and test().

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

gimplify_reg_info.h

gimplify_reg_info
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