From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/gcc/regset.h | 126 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 gcc-4.9/gcc/regset.h (limited to 'gcc-4.9/gcc/regset.h') diff --git a/gcc-4.9/gcc/regset.h b/gcc-4.9/gcc/regset.h new file mode 100644 index 000000000..d3df5b14a --- /dev/null +++ b/gcc-4.9/gcc/regset.h @@ -0,0 +1,126 @@ +/* Define regsets. + Copyright (C) 1987-2014 Free Software Foundation, Inc. + +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 +. */ + +#ifndef GCC_REGSET_H +#define GCC_REGSET_H + +/* 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. */ + +#include "bitmap.h" /* For bitmap_iterator. */ +#include "hard-reg-set.h" + +/* Head of register set linked list. */ +typedef bitmap_head regset_head; + +/* A pointer to a regset_head. */ +typedef bitmap regset; + +/* Allocate a register set with oballoc. */ +#define ALLOC_REG_SET(OBSTACK) BITMAP_ALLOC (OBSTACK) + +/* Do any cleanup needed on a regset when it is no longer used. */ +#define FREE_REG_SET(REGSET) BITMAP_FREE (REGSET) + +/* Initialize a new regset. */ +#define INIT_REG_SET(HEAD) bitmap_initialize (HEAD, ®_obstack) + +/* Clear a register set by freeing up the linked list. */ +#define CLEAR_REG_SET(HEAD) bitmap_clear (HEAD) + +/* Copy a register set to another register set. */ +#define COPY_REG_SET(TO, FROM) bitmap_copy (TO, FROM) + +/* Compare two register sets. */ +#define REG_SET_EQUAL_P(A, B) bitmap_equal_p (A, B) + +/* `and' a register set with a second register set. */ +#define AND_REG_SET(TO, FROM) bitmap_and_into (TO, FROM) + +/* `and' the complement of a register set with a register set. */ +#define AND_COMPL_REG_SET(TO, FROM) bitmap_and_compl_into (TO, FROM) + +/* Inclusive or a register set with a second register set. */ +#define IOR_REG_SET(TO, FROM) bitmap_ior_into (TO, FROM) + +/* Exclusive or a register set with a second register set. */ +#define XOR_REG_SET(TO, FROM) bitmap_xor_into (TO, FROM) + +/* Or into TO the register set FROM1 `and'ed with the complement of FROM2. */ +#define IOR_AND_COMPL_REG_SET(TO, FROM1, FROM2) \ + bitmap_ior_and_compl_into (TO, FROM1, FROM2) + +/* Clear a single register in a register set. */ +#define CLEAR_REGNO_REG_SET(HEAD, REG) bitmap_clear_bit (HEAD, REG) + +/* Set a single register in a register set. */ +#define SET_REGNO_REG_SET(HEAD, REG) bitmap_set_bit (HEAD, REG) + +/* Return true if a register is set in a register set. */ +#define REGNO_REG_SET_P(TO, REG) bitmap_bit_p (TO, REG) + +/* Copy the hard registers in a register set to the hard register set. */ +extern void reg_set_to_hard_reg_set (HARD_REG_SET *, const_bitmap); +#define REG_SET_TO_HARD_REG_SET(TO, FROM) \ +do { \ + CLEAR_HARD_REG_SET (TO); \ + reg_set_to_hard_reg_set (&TO, FROM); \ +} while (0) + +typedef bitmap_iterator reg_set_iterator; + +/* Loop over all registers in REGSET, starting with MIN, setting REGNUM to the + register number and executing CODE for all registers that are set. */ +#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 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_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 both regsets. */ +#define EXECUTE_IF_AND_IN_REG_SET(REGSET1, REGSET2, MIN, REGNUM, RSI) \ + EXECUTE_IF_AND_IN_BITMAP (REGSET1, REGSET2, MIN, REGNUM, RSI) \ + +/* Same information as REGS_INVALIDATED_BY_CALL but in regset form to be used + in dataflow more conveniently. */ + +extern regset regs_invalidated_by_call_regset; + +/* Same information as FIXED_REG_SET but in regset form. */ +extern regset fixed_reg_set_regset; + +/* An obstack for regsets. */ +extern bitmap_obstack reg_obstack; + +/* In df-core.c (which should use regset consistently instead of bitmap...) */ +extern void dump_regset (regset, FILE *); + +#endif /* GCC_REGSET_H */ -- cgit v1.2.3