#include "bitmap.h"
#include "hard-reg-set.h"

Include dependency graph for regset.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	ALLOC_REG_SET(OBSTACK) BITMAP_ALLOC (OBSTACK)
#define	FREE_REG_SET(REGSET) BITMAP_FREE (REGSET)
#define	INIT_REG_SET(HEAD) bitmap_initialize (HEAD, &reg_obstack)
#define	CLEAR_REG_SET(HEAD) bitmap_clear (HEAD)
#define	COPY_REG_SET(TO, FROM) bitmap_copy (TO, FROM)
#define	REG_SET_EQUAL_P(A, B) bitmap_equal_p (A, B)
#define	AND_REG_SET(TO, FROM) bitmap_and_into (TO, FROM)
#define	AND_COMPL_REG_SET(TO, FROM) bitmap_and_compl_into (TO, FROM)
#define	IOR_REG_SET(TO, FROM) bitmap_ior_into (TO, FROM)
#define	XOR_REG_SET(TO, FROM) bitmap_xor_into (TO, FROM)
#define	IOR_AND_COMPL_REG_SET(TO, FROM1, FROM2) bitmap_ior_and_compl_into (TO, FROM1, FROM2)
#define	CLEAR_REGNO_REG_SET(HEAD, REG) bitmap_clear_bit (HEAD, REG)
#define	SET_REGNO_REG_SET(HEAD, REG) bitmap_set_bit (HEAD, REG)
#define	REGNO_REG_SET_P(TO, REG) bitmap_bit_p (TO, REG)
#define	REG_SET_TO_HARD_REG_SET(TO, FROM)
#define	EXECUTE_IF_SET_IN_REG_SET(REGSET, MIN, REGNUM, RSI) EXECUTE_IF_SET_IN_BITMAP (REGSET, MIN, REGNUM, RSI)
#define	EXECUTE_IF_AND_COMPL_IN_REG_SET(REGSET1, REGSET2, MIN, REGNUM, RSI) EXECUTE_IF_AND_COMPL_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, RSI)
#define	EXECUTE_IF_AND_IN_REG_SET(REGSET1, REGSET2, MIN, REGNUM, RSI) EXECUTE_IF_AND_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, RSI) \

Typedefs
typedef bitmap_head	regset_head
typedef bitmap	regset
typedef bitmap_iterator	reg_set_iterator

Functions
void	reg_set_to_hard_reg_set (HARD_REG_SET *, const_bitmap)
void	dump_regset (regset, FILE *)

Variables
regset	regs_invalidated_by_call_regset
regset	fixed_reg_set_regset
bitmap_obstack	reg_obstack

Macro Definition Documentation

#define ALLOC_REG_SET ( OBSTACK ) BITMAP_ALLOC (OBSTACK)

Allocate a register set with oballoc.

#define AND_COMPL_REG_SET	(	TO,
		FROM
	)	bitmap_and_compl_into (TO, FROM)

`and' the complement of a register set with a register set.

#define AND_REG_SET	(	TO,
		FROM
	)	bitmap_and_into (TO, FROM)

`and' a register set with a second register set.

#define CLEAR_REG_SET ( HEAD ) bitmap_clear (HEAD)

Clear a register set by freeing up the linked list.

Referenced by spill_hard_reg().

#define CLEAR_REGNO_REG_SET	(	HEAD,
		REG
	)	bitmap_clear_bit (HEAD, REG)

Clear a single register in a register set.

#define COPY_REG_SET	(	TO,
		FROM
	)	bitmap_copy (TO, FROM)

Copy a register set to another register set.

#define EXECUTE_IF_AND_COMPL_IN_REG_SET	(	REGSET1,
		REGSET2,
		MIN,
		REGNUM,
		RSI
	)	EXECUTE_IF_AND_COMPL_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, RSI)

Loop over all registers in REGSET1 and REGSET2, starting with MIN, setting REGNUM to the register number and executing CODE for all registers that are set in the first regset and not set in the second.

#define EXECUTE_IF_AND_IN_REG_SET	(	REGSET1,
		REGSET2,
		MIN,
		REGNUM,
		RSI
	)	EXECUTE_IF_AND_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, RSI) \

Loop over all registers in REGSET1 and REGSET2, starting with MIN, setting REGNUM to the register number and executing CODE for all registers that are set in both regsets.

#define EXECUTE_IF_SET_IN_REG_SET	(	REGSET,
		MIN,
		REGNUM,
		RSI
	)	EXECUTE_IF_SET_IN_BITMAP (REGSET, MIN, REGNUM, RSI)

Loop over all registers in REGSET, starting with MIN, setting REGNUM to the register number and executing CODE for all registers that are set.

Referenced by save_call_clobbered_regs().

#define FREE_REG_SET ( REGSET ) BITMAP_FREE (REGSET)

Do any cleanup needed on a regset when it is no longer used.

#define INIT_REG_SET ( HEAD ) bitmap_initialize (HEAD, &reg_obstack)

Initialize a new regset.

Referenced by spill_hard_reg().

#define IOR_AND_COMPL_REG_SET	(	TO,
		FROM1,
		FROM2
	)	bitmap_ior_and_compl_into (TO, FROM1, FROM2)

Or into TO the register set FROM1 `and'ed with the complement of FROM2.

#define IOR_REG_SET	(	TO,
		FROM
	)	bitmap_ior_into (TO, FROM)

Inclusive or a register set with a second register set.

#define REG_SET_EQUAL_P	(	A,
		B
	)	bitmap_equal_p (A, B)

Compare two register sets.

#define REG_SET_TO_HARD_REG_SET	(	TO,
		FROM
	)

Value:

do {                                                                    \
  CLEAR_HARD_REG_SET (TO);                                              \
  reg_set_to_hard_reg_set (&TO, FROM);                                  \
} while (0)

Referenced by find_call_crossed_cheap_reg(), save_call_clobbered_regs(), saved_hard_reg_compare_func(), and split_all_insns().

#define REGNO_REG_SET_P	(	TO,
		REG
	)	bitmap_bit_p (TO, REG)

Return true if a register is set in a register set.

Referenced by compute_hash_table(), init_reg_last(), and reload_as_needed().

#define SET_REGNO_REG_SET	(	HEAD,
		REG
	)	bitmap_set_bit (HEAD, REG)

Set a single register in a register set.

Referenced by dump_hash_table(), insert_restore(), reload_as_needed(), replace_reg_with_saved_mem(), and scan_paradoxical_subregs().

#define XOR_REG_SET	(	TO,
		FROM
	)	bitmap_xor_into (TO, FROM)

Exclusive or a register set with a second register set.

Typedef Documentation

typedef bitmap_iterator reg_set_iterator

typedef bitmap regset

A pointer to a regset_head.

typedef bitmap_head regset_head

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see http://www.gnu.org/licenses/. TODO: regset is just a bitmap in its implementation. The compiler does not consistently use one or the other, i.e. sometimes variables are declared as bitmap but they are actually regsets and regset accessors are used, and vice versa, or mixed (see e.g. spilled_regs in IRA).

This should be cleaned up, either by just dropping the regset type, or by changing all bitmaps that are really regsets to the regset type. For the latter option, a good start would be to change everything allocated on the reg_obstack to regset. Head of register set linked list.

Function Documentation

void dump_regset	(	regset	,
		FILE *
	)

In df-core.c (which should use regset consistently instead of bitmap...)

void reg_set_to_hard_reg_set	(	HARD_REG_SET *	,
		const_bitmap
	)

Copy the hard registers in a register set to the hard register set.

Variable Documentation

regset fixed_reg_set_regset

Same information as FIXED_REG_SET but in regset form.

bitmap_obstack reg_obstack

An obstack for regsets.

The obstack on which regsets are allocated.

Referenced by get_stored_val(), and remove_pseudos().

regset regs_invalidated_by_call_regset

Same information as REGS_INVALIDATED_BY_CALL but in regset form to be used in dataflow more conveniently.

Referenced by df_scan_free().

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation