1996-09-18 05:35:50 +00:00
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/* Register Transfer Language (RTL) definitions for GNU C-Compiler
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2002-02-01 18:16:02 +00:00
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Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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This file is part of GCC.
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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1996-09-18 05:35:50 +00:00
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You should have received a copy of the GNU General Public License
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2002-02-01 18:16:02 +00:00
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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#ifndef GCC_RTL_H
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#define GCC_RTL_H
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struct function;
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1996-09-18 05:35:50 +00:00
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#include "machmode.h"
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#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
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#undef FLOAT /* Likewise. */
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#undef ABS /* Likewise. */
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#undef PC /* Likewise. */
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2002-02-01 18:16:02 +00:00
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/* Value used by some passes to "recognize" noop moves as valid
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instructions. */
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#define NOOP_MOVE_INSN_CODE INT_MAX
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1996-09-18 05:35:50 +00:00
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/* Register Transfer Language EXPRESSIONS CODES */
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#define RTX_CODE enum rtx_code
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enum rtx_code {
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#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM ,
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#include "rtl.def" /* rtl expressions are documented here */
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#undef DEF_RTL_EXPR
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LAST_AND_UNUSED_RTX_CODE}; /* A convenient way to get a value for
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NUM_RTX_CODE.
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Assumes default enum value assignment. */
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2002-02-01 18:16:02 +00:00
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#define NUM_RTX_CODE ((int) LAST_AND_UNUSED_RTX_CODE)
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1996-09-18 05:35:50 +00:00
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/* The cast here, saves many elsewhere. */
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2002-02-01 18:16:02 +00:00
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extern const unsigned char rtx_length[NUM_RTX_CODE];
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1999-08-26 09:30:50 +00:00
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#define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)])
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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extern const char * const rtx_name[NUM_RTX_CODE];
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1999-08-26 09:30:50 +00:00
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#define GET_RTX_NAME(CODE) (rtx_name[(int) (CODE)])
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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extern const char * const rtx_format[NUM_RTX_CODE];
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1999-08-26 09:30:50 +00:00
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#define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)])
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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extern const char rtx_class[NUM_RTX_CODE];
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1999-08-26 09:30:50 +00:00
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#define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)])
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1996-09-18 05:35:50 +00:00
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1999-08-26 09:30:50 +00:00
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/* The flags and bitfields of an ADDR_DIFF_VEC. BASE is the base label
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relative to which the offsets are calculated, as explained in rtl.def. */
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typedef struct
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{
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/* Set at the start of shorten_branches - ONLY WHEN OPTIMIZING - : */
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unsigned min_align: 8;
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/* Flags: */
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unsigned base_after_vec: 1; /* BASE is after the ADDR_DIFF_VEC. */
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2002-02-01 18:16:02 +00:00
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unsigned min_after_vec: 1; /* minimum address target label is
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after the ADDR_DIFF_VEC. */
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unsigned max_after_vec: 1; /* maximum address target label is
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after the ADDR_DIFF_VEC. */
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unsigned min_after_base: 1; /* minimum address target label is
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after BASE. */
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unsigned max_after_base: 1; /* maximum address target label is
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after BASE. */
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1999-08-26 09:30:50 +00:00
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/* Set by the actual branch shortening process - ONLY WHEN OPTIMIZING - : */
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unsigned offset_unsigned: 1; /* offsets have to be treated as unsigned. */
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unsigned : 2;
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unsigned scale : 8;
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} addr_diff_vec_flags;
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2002-02-01 18:16:02 +00:00
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/* Structure used to describe the attributes of a MEM. These are hashed
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so MEMs that the same attributes share a data structure. This means
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they cannot be modified in place. If any element is nonzero, it means
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the value of the corresponding attribute is unknown. */
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typedef struct
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{
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HOST_WIDE_INT alias; /* Memory alias set. */
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tree expr; /* expr corresponding to MEM. */
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rtx offset; /* Offset from start of DECL, as CONST_INT. */
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rtx size; /* Size in bytes, as a CONST_INT. */
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unsigned int align; /* Alignment of MEM in bits. */
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} mem_attrs;
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1996-09-18 05:35:50 +00:00
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/* Common union for an element of an rtx. */
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typedef union rtunion_def
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{
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HOST_WIDE_INT rtwint;
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int rtint;
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2002-02-01 18:16:02 +00:00
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unsigned int rtuint;
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const char *rtstr;
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rtx rtx;
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rtvec rtvec;
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1996-09-18 05:35:50 +00:00
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enum machine_mode rttype;
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1999-08-26 09:30:50 +00:00
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addr_diff_vec_flags rt_addr_diff_vec_flags;
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2002-02-01 18:16:02 +00:00
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struct cselib_val_struct *rt_cselib;
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1999-08-26 09:30:50 +00:00
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struct bitmap_head_def *rtbit;
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2002-02-01 18:16:02 +00:00
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tree rttree;
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1999-10-16 06:09:09 +00:00
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struct basic_block_def *bb;
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2002-02-01 18:16:02 +00:00
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mem_attrs *rtmem;
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1996-09-18 05:35:50 +00:00
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} rtunion;
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/* RTL expression ("rtx"). */
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2002-02-01 18:16:02 +00:00
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struct rtx_def
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1996-09-18 05:35:50 +00:00
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{
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/* The kind of expression this is. */
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2002-02-01 18:16:02 +00:00
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ENUM_BITFIELD(rtx_code) code: 16;
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1996-09-18 05:35:50 +00:00
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/* The kind of value the expression has. */
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2002-02-01 18:16:02 +00:00
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ENUM_BITFIELD(machine_mode) mode : 8;
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/* 1 in an INSN if it can alter flow of control
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within this function.
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MEM_KEEP_ALIAS_SET_P in a MEM.
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LINK_COST_ZERO in an INSN_LIST.
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SET_IS_RETURN_P in a SET. */
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1996-09-18 05:35:50 +00:00
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unsigned int jump : 1;
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2002-02-01 18:16:02 +00:00
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/* 1 in an INSN if it can call another function.
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LINK_COST_FREE in an INSN_LIST. */
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1996-09-18 05:35:50 +00:00
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unsigned int call : 1;
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2002-02-01 18:16:02 +00:00
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/* 1 in a REG if value of this expression will never change during
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the current function, even though it is not manifestly constant.
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1 in a MEM if contents of memory are constant. This does not
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necessarily mean that the value of this expression is constant.
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1996-09-18 05:35:50 +00:00
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1 in a SUBREG if it is from a promoted variable that is unsigned.
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1 in a SYMBOL_REF if it addresses something in the per-function
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constants pool.
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1 in a CALL_INSN if it is a const call.
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1 in a JUMP_INSN if it is a branch that should be annulled. Valid from
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reorg until end of compilation; cleared before used. */
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unsigned int unchanging : 1;
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/* 1 in a MEM expression if contents of memory are volatile.
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1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL or BARRIER
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if it is deleted.
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1 in a REG expression if corresponds to a variable declared by the user.
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0 for an internally generated temporary.
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In a SYMBOL_REF, this flag is used for machine-specific purposes.
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In a LABEL_REF or in a REG_LABEL note, this is LABEL_REF_NONLOCAL_P. */
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unsigned int volatil : 1;
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1999-08-26 09:30:50 +00:00
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/* 1 in a MEM referring to a field of an aggregate.
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1996-09-18 05:35:50 +00:00
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0 if the MEM was a variable or the result of a * operator in C;
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1 if it was the result of a . or -> operator (on a struct) in C.
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1 in a REG if the register is used only in exit code a loop.
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2002-02-01 18:16:02 +00:00
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1 in a SUBREG expression if was generated from a variable with a
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1996-09-18 05:35:50 +00:00
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promoted mode.
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1 in a CODE_LABEL if the label is used for nonlocal gotos
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and must not be deleted even if its count is zero.
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1 in a LABEL_REF if this is a reference to a label outside the
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current loop.
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1 in an INSN, JUMP_INSN, or CALL_INSN if this insn must be scheduled
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together with the preceding insn. Valid only within sched.
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1 in an INSN, JUMP_INSN, or CALL_INSN if insn is in a delay slot and
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from the target of a branch. Valid from reorg until end of compilation;
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2002-02-01 18:16:02 +00:00
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cleared before used.
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1 in an INSN if this insn is dead code. Valid only during
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dead-code elimination phase; cleared before use. */
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1996-09-18 05:35:50 +00:00
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unsigned int in_struct : 1;
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/* 1 if this rtx is used. This is used for copying shared structure.
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See `unshare_all_rtl'.
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2002-02-01 18:16:02 +00:00
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In a REG, this is not needed for that purpose, and used instead
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1996-09-18 05:35:50 +00:00
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in `leaf_renumber_regs_insn'.
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In a SYMBOL_REF, means that emit_library_call
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has used it as the function. */
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unsigned int used : 1;
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/* Nonzero if this rtx came from procedure integration.
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In a REG, nonzero means this reg refers to the return value
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2002-02-01 18:16:02 +00:00
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of the current function.
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1 in a SYMBOL_REF if the symbol is weak. */
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1996-09-18 05:35:50 +00:00
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unsigned integrated : 1;
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1999-10-16 06:09:09 +00:00
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/* 1 in an INSN or a SET if this rtx is related to the call frame,
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either changing how we compute the frame address or saving and
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2002-02-01 18:16:02 +00:00
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restoring registers in the prologue and epilogue.
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1999-10-16 06:09:09 +00:00
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1 in a MEM if the MEM refers to a scalar, rather than a member of
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2002-02-01 18:16:02 +00:00
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an aggregate.
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1 in a REG if the register is a pointer.
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1 in a SYMBOL_REF if it addresses something in the per-function
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constant string pool. */
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1999-08-26 09:30:50 +00:00
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unsigned frame_related : 1;
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2002-02-01 18:16:02 +00:00
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1996-09-18 05:35:50 +00:00
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/* The first element of the operands of this rtx.
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The number of operands and their types are controlled
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by the `code' field, according to rtl.def. */
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rtunion fld[1];
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2002-02-01 18:16:02 +00:00
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};
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1996-09-18 05:35:50 +00:00
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#define NULL_RTX (rtx) 0
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/* Define macros to access the `code' field of the rtx. */
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2002-02-01 18:16:02 +00:00
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#define GET_CODE(RTX) ((enum rtx_code) (RTX)->code)
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#define PUT_CODE(RTX, CODE) ((RTX)->code = (ENUM_BITFIELD(rtx_code)) (CODE))
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1996-09-18 05:35:50 +00:00
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2002-02-01 18:16:02 +00:00
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#define GET_MODE(RTX) ((enum machine_mode) (RTX)->mode)
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#define PUT_MODE(RTX, MODE) ((RTX)->mode = (ENUM_BITFIELD(machine_mode)) (MODE))
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1996-09-18 05:35:50 +00:00
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#define RTX_INTEGRATED_P(RTX) ((RTX)->integrated)
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#define RTX_UNCHANGING_P(RTX) ((RTX)->unchanging)
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1999-08-26 09:30:50 +00:00
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#define RTX_FRAME_RELATED_P(RTX) ((RTX)->frame_related)
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1996-09-18 05:35:50 +00:00
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/* RTL vector. These appear inside RTX's when there is a need
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for a variable number of things. The principle use is inside
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PARALLEL expressions. */
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|
2002-02-01 18:16:02 +00:00
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struct rtvec_def {
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1999-08-26 09:30:50 +00:00
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int num_elem; /* number of elements */
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2002-02-01 18:16:02 +00:00
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rtx elem[1];
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};
|
1996-09-18 05:35:50 +00:00
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#define NULL_RTVEC (rtvec) 0
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#define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem)
|
1999-08-26 09:30:50 +00:00
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#define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM))
|
1996-09-18 05:35:50 +00:00
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|
2002-02-01 18:16:02 +00:00
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/* Predicate yielding nonzero iff X is an rtl for a register. */
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#define REG_P(X) (GET_CODE (X) == REG)
|
1996-09-18 05:35:50 +00:00
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|
2002-02-01 18:16:02 +00:00
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/* Predicate yielding nonzero iff X is a label insn. */
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#define LABEL_P(X) (GET_CODE (X) == CODE_LABEL)
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1996-09-18 05:35:50 +00:00
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|
2002-02-01 18:16:02 +00:00
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/* Predicate yielding nonzero iff X is a jump insn. */
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#define JUMP_P(X) (GET_CODE (X) == JUMP_INSN)
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/* Predicate yielding nonzero iff X is a note insn. */
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#define NOTE_P(X) (GET_CODE (X) == NOTE)
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/* Predicate yielding nonzero iff X is a barrier insn. */
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#define BARRIER_P(X) (GET_CODE (X) == BARRIER)
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/* Predicate yielding nonzero iff X is a data for a jump table. */
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#define JUMP_TABLE_DATA_P(INSN) \
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|
|
(JUMP_P (INSN) && (GET_CODE (PATTERN (INSN)) == ADDR_VEC || \
|
|
|
|
|
GET_CODE (PATTERN (INSN)) == ADDR_DIFF_VEC))
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* 1 if X is a constant value that is an integer. */
|
|
|
|
|
|
|
|
|
|
#define CONSTANT_P(X) \
|
|
|
|
|
(GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
|
|
|
|
|
|| GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE \
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|| GET_CODE (X) == CONST || GET_CODE (X) == HIGH \
|
2002-05-09 20:02:13 +00:00
|
|
|
|
|| GET_CODE (X) == CONST_VECTOR \
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|| GET_CODE (X) == CONSTANT_P_RTX)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* General accessor macros for accessing the fields of an rtx. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007)
|
|
|
|
|
/* The bit with a star outside the statement expr and an & inside is
|
|
|
|
|
so that N can be evaluated only once. */
|
|
|
|
|
#define RTL_CHECK1(RTX, N, C1) __extension__ \
|
|
|
|
|
(*({ rtx _rtx = (RTX); int _n = (N); \
|
|
|
|
|
enum rtx_code _code = GET_CODE (_rtx); \
|
|
|
|
|
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
|
|
|
|
|
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
if (GET_RTX_FORMAT(_code)[_n] != C1) \
|
|
|
|
|
rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
&_rtx->fld[_n]; }))
|
|
|
|
|
|
|
|
|
|
#define RTL_CHECK2(RTX, N, C1, C2) __extension__ \
|
|
|
|
|
(*({ rtx _rtx = (RTX); int _n = (N); \
|
|
|
|
|
enum rtx_code _code = GET_CODE (_rtx); \
|
|
|
|
|
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
|
|
|
|
|
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
if (GET_RTX_FORMAT(_code)[_n] != C1 \
|
|
|
|
|
&& GET_RTX_FORMAT(_code)[_n] != C2) \
|
|
|
|
|
rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
&_rtx->fld[_n]; }))
|
|
|
|
|
|
|
|
|
|
#define RTL_CHECKC1(RTX, N, C) __extension__ \
|
|
|
|
|
(*({ rtx _rtx = (RTX); int _n = (N); \
|
|
|
|
|
if (GET_CODE (_rtx) != (C)) \
|
|
|
|
|
rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
&_rtx->fld[_n]; }))
|
|
|
|
|
|
|
|
|
|
#define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \
|
|
|
|
|
(*({ rtx _rtx = (RTX); int _n = (N); \
|
|
|
|
|
enum rtx_code _code = GET_CODE (_rtx); \
|
|
|
|
|
if (_code != (C1) && _code != (C2)) \
|
|
|
|
|
rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
&_rtx->fld[_n]; }))
|
|
|
|
|
|
|
|
|
|
#define RTVEC_ELT(RTVEC, I) __extension__ \
|
|
|
|
|
(*({ rtvec _rtvec = (RTVEC); int _i = (I); \
|
|
|
|
|
if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
|
|
|
|
|
rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \
|
|
|
|
|
__FUNCTION__); \
|
|
|
|
|
&_rtvec->elem[_i]; }))
|
|
|
|
|
|
|
|
|
|
extern void rtl_check_failed_bounds PARAMS ((rtx, int,
|
|
|
|
|
const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
extern void rtl_check_failed_type1 PARAMS ((rtx, int, int,
|
|
|
|
|
const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
extern void rtl_check_failed_type2 PARAMS ((rtx, int, int, int,
|
|
|
|
|
const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
extern void rtl_check_failed_code1 PARAMS ((rtx, enum rtx_code,
|
|
|
|
|
const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
extern void rtl_check_failed_code2 PARAMS ((rtx, enum rtx_code, enum rtx_code,
|
|
|
|
|
const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
extern void rtvec_check_failed_bounds PARAMS ((rtvec, int,
|
|
|
|
|
const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
|
|
|
|
|
#else /* not ENABLE_RTL_CHECKING */
|
|
|
|
|
|
|
|
|
|
#define RTL_CHECK1(RTX, N, C1) ((RTX)->fld[N])
|
|
|
|
|
#define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->fld[N])
|
|
|
|
|
#define RTL_CHECKC1(RTX, N, C) ((RTX)->fld[N])
|
|
|
|
|
#define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->fld[N])
|
|
|
|
|
#define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I])
|
|
|
|
|
|
|
|
|
|
#endif
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define XWINT(RTX, N) (RTL_CHECK1 (RTX, N, 'w').rtwint)
|
|
|
|
|
#define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rtint)
|
|
|
|
|
#define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rtstr)
|
|
|
|
|
#define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rtx)
|
|
|
|
|
#define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rtvec)
|
|
|
|
|
#define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rttype)
|
|
|
|
|
#define XBITMAP(RTX, N) (RTL_CHECK1 (RTX, N, 'b').rtbit)
|
|
|
|
|
#define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rttree)
|
|
|
|
|
#define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').bb)
|
|
|
|
|
#define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rtstr)
|
|
|
|
|
|
|
|
|
|
#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
|
|
|
|
|
#define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N))
|
|
|
|
|
|
|
|
|
|
/* These are like XWINT, etc. except that they expect a '0' field instead
|
|
|
|
|
of the normal type code. */
|
|
|
|
|
|
|
|
|
|
#define X0WINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtwint)
|
|
|
|
|
#define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtint)
|
|
|
|
|
#define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtuint)
|
|
|
|
|
#define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtstr)
|
|
|
|
|
#define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtx)
|
|
|
|
|
#define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtvec)
|
|
|
|
|
#define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttype)
|
|
|
|
|
#define X0BITMAP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtbit)
|
|
|
|
|
#define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttree)
|
|
|
|
|
#define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').bb)
|
|
|
|
|
#define X0ADVFLAGS(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_addr_diff_vec_flags)
|
|
|
|
|
#define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib)
|
|
|
|
|
#define X0MEMATTR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtmem)
|
|
|
|
|
|
|
|
|
|
#define XCWINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtwint)
|
|
|
|
|
#define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtint)
|
|
|
|
|
#define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtuint)
|
|
|
|
|
#define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtstr)
|
|
|
|
|
#define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtx)
|
|
|
|
|
#define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtvec)
|
|
|
|
|
#define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttype)
|
|
|
|
|
#define XCBITMAP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtbit)
|
|
|
|
|
#define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttree)
|
|
|
|
|
#define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).bb)
|
|
|
|
|
#define XCADVFLAGS(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_addr_diff_vec_flags)
|
|
|
|
|
#define XCCSELIB(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cselib)
|
|
|
|
|
|
|
|
|
|
#define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M)
|
|
|
|
|
#define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C))
|
|
|
|
|
|
|
|
|
|
#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rtx)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* ACCESS MACROS for particular fields of insns. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Determines whether X is an insn. */
|
|
|
|
|
#define INSN_P(X) (GET_RTX_CLASS (GET_CODE(X)) == 'i')
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Holds a unique number for each insn.
|
|
|
|
|
These are not necessarily sequentially increasing. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define INSN_UID(INSN) XINT (INSN, 0)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Chain insns together in sequence. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define PREV_INSN(INSN) XEXP (INSN, 1)
|
|
|
|
|
#define NEXT_INSN(INSN) XEXP (INSN, 2)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* The body of an insn. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define PATTERN(INSN) XEXP (INSN, 3)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Code number of instruction, from when it was recognized.
|
|
|
|
|
-1 means this instruction has not been recognized yet. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define INSN_CODE(INSN) XINT (INSN, 4)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Set up in flow.c; empty before then.
|
|
|
|
|
Holds a chain of INSN_LIST rtx's whose first operands point at
|
|
|
|
|
previous insns with direct data-flow connections to this one.
|
|
|
|
|
That means that those insns set variables whose next use is in this insn.
|
|
|
|
|
They are always in the same basic block as this insn. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define LOG_LINKS(INSN) XEXP(INSN, 5)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* 1 if insn has been deleted. */
|
|
|
|
|
#define INSN_DELETED_P(INSN) ((INSN)->volatil)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* 1 if insn is a call to a const or pure function. */
|
|
|
|
|
#define CONST_OR_PURE_CALL_P(INSN) ((INSN)->unchanging)
|
|
|
|
|
|
|
|
|
|
/* 1 if insn (assumed to be a CALL_INSN) is a sibling call. */
|
|
|
|
|
#define SIBLING_CALL_P(INSN) ((INSN)->jump)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* 1 if insn is a branch that should not unconditionally execute its
|
2002-02-01 18:16:02 +00:00
|
|
|
|
delay slots, i.e., it is an annulled branch. */
|
1996-09-18 05:35:50 +00:00
|
|
|
|
#define INSN_ANNULLED_BRANCH_P(INSN) ((INSN)->unchanging)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* 1 if insn is a dead code. Valid only for dead-code elimination phase. */
|
|
|
|
|
#define INSN_DEAD_CODE_P(INSN) ((INSN)->in_struct)
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* 1 if insn is in a delay slot and is from the target of the branch. If
|
|
|
|
|
the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be
|
|
|
|
|
executed if the branch is taken. For annulled branches with this bit
|
|
|
|
|
clear, the insn should be executed only if the branch is not taken. */
|
|
|
|
|
#define INSN_FROM_TARGET_P(INSN) ((INSN)->in_struct)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define ADDR_DIFF_VEC_FLAGS(RTX) X0ADVFLAGS(RTX, 4)
|
|
|
|
|
|
|
|
|
|
#define CSELIB_VAL_PTR(RTX) X0CSELIB(RTX, 0)
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Holds a list of notes on what this insn does to various REGs.
|
2002-02-01 18:16:02 +00:00
|
|
|
|
It is a chain of EXPR_LIST rtx's, where the second operand is the
|
|
|
|
|
chain pointer and the first operand is the REG being described.
|
1996-09-18 05:35:50 +00:00
|
|
|
|
The mode field of the EXPR_LIST contains not a real machine mode
|
2002-02-01 18:16:02 +00:00
|
|
|
|
but a value from enum reg_note. */
|
|
|
|
|
|
|
|
|
|
#define REG_NOTES(INSN) XEXP(INSN, 6)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Don't forget to change reg_note_name in rtl.c. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
enum reg_note
|
|
|
|
|
{
|
|
|
|
|
/* The value in REG dies in this insn (i.e., it is not needed past
|
|
|
|
|
this insn). If REG is set in this insn, the REG_DEAD note may,
|
|
|
|
|
but need not, be omitted. */
|
|
|
|
|
REG_DEAD = 1,
|
|
|
|
|
|
|
|
|
|
/* The REG is autoincremented or autodecremented. */
|
|
|
|
|
REG_INC,
|
|
|
|
|
|
|
|
|
|
/* Describes the insn as a whole; it says that the insn sets a register
|
|
|
|
|
to a constant value or to be equivalent to a memory address. If the
|
|
|
|
|
register is spilled to the stack then the constant value should be
|
|
|
|
|
substituted for it. The contents of the REG_EQUIV is the constant
|
|
|
|
|
value or memory address, which may be different from the source of
|
|
|
|
|
the SET although it has the same value. A REG_EQUIV note may also
|
|
|
|
|
appear on an insn which copies a register parameter to a pseudo-register,
|
|
|
|
|
if there is a memory address which could be used to hold that
|
|
|
|
|
pseudo-register throughout the function. */
|
|
|
|
|
REG_EQUIV,
|
|
|
|
|
|
|
|
|
|
/* Like REG_EQUIV except that the destination is only momentarily equal
|
|
|
|
|
to the specified rtx. Therefore, it cannot be used for substitution;
|
|
|
|
|
but it can be used for cse. */
|
|
|
|
|
REG_EQUAL,
|
|
|
|
|
|
|
|
|
|
/* The register set in this insn held 0 before the insn. The contents of
|
|
|
|
|
the note is the insn that stored the 0. If that insn is deleted or
|
|
|
|
|
patched to a NOTE, the REG_WAS_0 is inoperative. The REG_WAS_0 note
|
|
|
|
|
is actually an INSN_LIST, not an EXPR_LIST. */
|
|
|
|
|
REG_WAS_0,
|
|
|
|
|
|
|
|
|
|
/* This insn copies the return-value of a library call out of the hard reg
|
|
|
|
|
for return values. This note is actually an INSN_LIST and it points to
|
|
|
|
|
the first insn involved in setting up arguments for the call. flow.c
|
|
|
|
|
uses this to delete the entire library call when its result is dead. */
|
|
|
|
|
REG_RETVAL,
|
|
|
|
|
|
|
|
|
|
/* The inverse of REG_RETVAL: it goes on the first insn of the library call
|
|
|
|
|
and points at the one that has the REG_RETVAL. This note is also an
|
|
|
|
|
INSN_LIST. */
|
|
|
|
|
REG_LIBCALL,
|
|
|
|
|
|
|
|
|
|
/* The register is always nonnegative during the containing loop. This is
|
|
|
|
|
used in branches so that decrement and branch instructions terminating
|
|
|
|
|
on zero can be matched. There must be an insn pattern in the md file
|
|
|
|
|
named `decrement_and_branch_until_zero' or else this will never be added
|
|
|
|
|
to any instructions. */
|
|
|
|
|
REG_NONNEG,
|
|
|
|
|
|
|
|
|
|
/* There is no conflict *after this insn* between the register in the note
|
|
|
|
|
and the destination of this insn. */
|
|
|
|
|
REG_NO_CONFLICT,
|
|
|
|
|
|
|
|
|
|
/* Identifies a register set in this insn and never used. */
|
|
|
|
|
REG_UNUSED,
|
|
|
|
|
|
|
|
|
|
/* REG_CC_SETTER and REG_CC_USER link a pair of insns that set and use CC0,
|
|
|
|
|
respectively. Normally, these are required to be consecutive insns, but
|
|
|
|
|
we permit putting a cc0-setting insn in the delay slot of a branch as
|
|
|
|
|
long as only one copy of the insn exists. In that case, these notes
|
|
|
|
|
point from one to the other to allow code generation to determine what
|
|
|
|
|
any require information and to properly update CC_STATUS. These notes
|
|
|
|
|
are INSN_LISTs. */
|
|
|
|
|
REG_CC_SETTER, REG_CC_USER,
|
|
|
|
|
|
|
|
|
|
/* Points to a CODE_LABEL. Used by non-JUMP_INSNs to say that the
|
|
|
|
|
CODE_LABEL contained in the REG_LABEL note is used by the insn.
|
|
|
|
|
This note is an INSN_LIST. */
|
|
|
|
|
REG_LABEL,
|
|
|
|
|
|
|
|
|
|
/* REG_DEP_ANTI and REG_DEP_OUTPUT are used in LOG_LINKS to represent
|
|
|
|
|
write-after-read and write-after-write dependencies respectively.
|
|
|
|
|
Data dependencies, which are the only type of LOG_LINK created by
|
|
|
|
|
flow, are represented by a 0 reg note kind. */
|
|
|
|
|
REG_DEP_ANTI, REG_DEP_OUTPUT,
|
|
|
|
|
|
|
|
|
|
/* REG_BR_PROB is attached to JUMP_INSNs and CALL_INSNs.
|
|
|
|
|
It has an integer value. For jumps, it is the probability that this is a
|
|
|
|
|
taken branch. For calls, it is the probability that this call won't
|
|
|
|
|
return. */
|
|
|
|
|
REG_BR_PROB,
|
|
|
|
|
|
|
|
|
|
/* REG_EXEC_COUNT is attached to the first insn of each basic block, and
|
|
|
|
|
the first insn after each CALL_INSN. It indicates how many times this
|
|
|
|
|
block was executed. */
|
|
|
|
|
REG_EXEC_COUNT,
|
|
|
|
|
|
|
|
|
|
/* Attached to a call insn; indicates that the call is malloc-like and
|
|
|
|
|
that the pointer returned cannot alias anything else. */
|
|
|
|
|
REG_NOALIAS,
|
|
|
|
|
|
|
|
|
|
/* Used to optimize rtl generated by dynamic stack allocations for targets
|
|
|
|
|
where SETJMP_VIA_SAVE_AREA is true. */
|
|
|
|
|
REG_SAVE_AREA,
|
|
|
|
|
|
|
|
|
|
/* REG_BR_PRED is attached to JUMP_INSNs and CALL_INSNSs. It contains
|
|
|
|
|
CONCAT of two integer value. First specifies the branch predictor
|
|
|
|
|
that added the note, second specifies the predicted hitrate of branch
|
|
|
|
|
in the same format as REG_BR_PROB note uses. */
|
|
|
|
|
REG_BR_PRED,
|
|
|
|
|
|
|
|
|
|
/* Attached to insns that are RTX_FRAME_RELATED_P, but are too complex
|
|
|
|
|
for DWARF to interpret what they imply. The attached rtx is used
|
|
|
|
|
instead of intuition. */
|
|
|
|
|
REG_FRAME_RELATED_EXPR,
|
|
|
|
|
|
|
|
|
|
/* Indicates that REG holds the exception context for the function.
|
|
|
|
|
This context is shared by inline functions, so the code to acquire
|
|
|
|
|
the real exception context is delayed until after inlining. */
|
|
|
|
|
REG_EH_CONTEXT,
|
|
|
|
|
|
|
|
|
|
/* Indicates what exception region an INSN belongs in. This is used to
|
|
|
|
|
indicate what region to which a call may throw. REGION 0 indicates
|
|
|
|
|
that a call cannot throw at all. REGION -1 indicates that it cannot
|
|
|
|
|
throw, nor will it execute a non-local goto. */
|
|
|
|
|
REG_EH_REGION,
|
|
|
|
|
|
|
|
|
|
/* Used by haifa-sched to save NOTE_INSN notes across scheduling. */
|
|
|
|
|
REG_SAVE_NOTE,
|
|
|
|
|
|
|
|
|
|
/* Indicates that this insn (which is part of the prologue) computes
|
|
|
|
|
a value which might not be used later, and if so it's OK to delete
|
|
|
|
|
the insn. Normally, deleting any insn in the prologue is an error.
|
|
|
|
|
At present the parameter is unused and set to (const_int 0). */
|
|
|
|
|
REG_MAYBE_DEAD,
|
|
|
|
|
|
|
|
|
|
/* Indicates that a call does not return. */
|
|
|
|
|
REG_NORETURN,
|
|
|
|
|
|
|
|
|
|
/* Indicates that an indirect jump is a non-local goto instead of a
|
|
|
|
|
computed goto. */
|
|
|
|
|
REG_NON_LOCAL_GOTO,
|
|
|
|
|
|
|
|
|
|
/* This kind of note is generated at each to `setjmp',
|
|
|
|
|
and similar functions that can return twice. */
|
|
|
|
|
REG_SETJMP,
|
|
|
|
|
|
|
|
|
|
/* Indicate calls that always returns. */
|
|
|
|
|
REG_ALWAYS_RETURN,
|
|
|
|
|
|
|
|
|
|
/* Indicate that the memory load references a vtable. The expression
|
|
|
|
|
is of the form (plus (symbol_ref vtable_sym) (const_int offset)). */
|
|
|
|
|
REG_VTABLE_REF
|
|
|
|
|
};
|
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* The base value for branch probability notes. */
|
|
|
|
|
#define REG_BR_PROB_BASE 10000
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */
|
|
|
|
|
#define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK))
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define PUT_REG_NOTE_KIND(LINK, KIND) \
|
|
|
|
|
PUT_MODE (LINK, (enum machine_mode) (KIND))
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Names for REG_NOTE's in EXPR_LIST insn's. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern const char * const reg_note_name[];
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* This field is only present on CALL_INSNs. It holds a chain of EXPR_LIST of
|
|
|
|
|
USE and CLOBBER expressions.
|
|
|
|
|
USE expressions list the registers filled with arguments that
|
|
|
|
|
are passed to the function.
|
|
|
|
|
CLOBBER expressions document the registers explicitly clobbered
|
|
|
|
|
by this CALL_INSN.
|
|
|
|
|
Pseudo registers can not be mentioned in this list. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 7)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* The label-number of a code-label. The assembler label
|
|
|
|
|
is made from `L' and the label-number printed in decimal.
|
|
|
|
|
Label numbers are unique in a compilation. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define CODE_LABEL_NUMBER(INSN) XINT (INSN, 5)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
#define LINE_NUMBER NOTE
|
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* In a NOTE that is a line number, this is a string for the file name that the
|
|
|
|
|
line is in. We use the same field to record block numbers temporarily in
|
|
|
|
|
NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes. (We avoid lots of casts
|
|
|
|
|
between ints and pointers if we use a different macro for the block number.)
|
|
|
|
|
The NOTE_INSN_RANGE_{START,END} and NOTE_INSN_LIVE notes record their
|
2002-02-01 18:16:02 +00:00
|
|
|
|
information as an rtx in the field. */
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define NOTE_SOURCE_FILE(INSN) XCSTR (INSN, 3, NOTE)
|
|
|
|
|
#define NOTE_BLOCK(INSN) XCTREE (INSN, 3, NOTE)
|
|
|
|
|
#define NOTE_EH_HANDLER(INSN) XCINT (INSN, 3, NOTE)
|
|
|
|
|
#define NOTE_RANGE_INFO(INSN) XCEXP (INSN, 3, NOTE)
|
|
|
|
|
#define NOTE_LIVE_INFO(INSN) XCEXP (INSN, 3, NOTE)
|
|
|
|
|
#define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 3, NOTE)
|
|
|
|
|
#define NOTE_EXPECTED_VALUE(INSN) XCEXP (INSN, 3, NOTE)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* In a NOTE that is a line number, this is the line number.
|
|
|
|
|
Other kinds of NOTEs are identified by negative numbers here. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define NOTE_LINE_NUMBER(INSN) XCINT (INSN, 4, NOTE)
|
|
|
|
|
|
|
|
|
|
/* Nonzero if INSN is a note marking the beginning of a basic block. */
|
|
|
|
|
#define NOTE_INSN_BASIC_BLOCK_P(INSN) \
|
|
|
|
|
(GET_CODE (INSN) == NOTE \
|
|
|
|
|
&& NOTE_LINE_NUMBER (INSN) == NOTE_INSN_BASIC_BLOCK)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Codes that appear in the NOTE_LINE_NUMBER field
|
|
|
|
|
for kinds of notes that are not line numbers.
|
|
|
|
|
|
|
|
|
|
Notice that we do not try to use zero here for any of
|
|
|
|
|
the special note codes because sometimes the source line
|
|
|
|
|
actually can be zero! This happens (for example) when we
|
|
|
|
|
are generating code for the per-translation-unit constructor
|
|
|
|
|
and destructor routines for some C++ translation unit.
|
|
|
|
|
|
|
|
|
|
If you should change any of the following values, or if you
|
|
|
|
|
should add a new value here, don't forget to change the
|
|
|
|
|
note_insn_name array in rtl.c. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
enum insn_note
|
|
|
|
|
{
|
|
|
|
|
/* Keep all of these numbers negative. Adjust as needed. */
|
|
|
|
|
NOTE_INSN_BIAS = -100,
|
|
|
|
|
|
|
|
|
|
/* This note is used to get rid of an insn
|
|
|
|
|
when it isn't safe to patch the insn out of the chain. */
|
|
|
|
|
NOTE_INSN_DELETED,
|
|
|
|
|
|
|
|
|
|
/* These are used to mark the beginning and end of a lexical block.
|
|
|
|
|
See NOTE_BLOCK, identify_blocks and reorder_blocks. */
|
|
|
|
|
NOTE_INSN_BLOCK_BEG,
|
|
|
|
|
NOTE_INSN_BLOCK_END,
|
|
|
|
|
|
|
|
|
|
/* These mark the extremes of a loop. */
|
|
|
|
|
NOTE_INSN_LOOP_BEG,
|
|
|
|
|
NOTE_INSN_LOOP_END,
|
|
|
|
|
|
|
|
|
|
/* Generated at the place in a loop that `continue' jumps to. */
|
|
|
|
|
NOTE_INSN_LOOP_CONT,
|
|
|
|
|
/* Generated at the start of a duplicated exit test. */
|
|
|
|
|
NOTE_INSN_LOOP_VTOP,
|
|
|
|
|
|
|
|
|
|
/* Generated at the end of a conditional at the top of the loop.
|
|
|
|
|
This is used to perform a lame form of loop rotation in lieu
|
|
|
|
|
of actually understanding the loop structure. The note is
|
|
|
|
|
discarded after rotation is complete. */
|
|
|
|
|
NOTE_INSN_LOOP_END_TOP_COND,
|
|
|
|
|
|
|
|
|
|
/* This kind of note is generated at the end of the function body,
|
|
|
|
|
just before the return insn or return label. In an optimizing
|
|
|
|
|
compilation it is deleted by the first jump optimization, after
|
|
|
|
|
enabling that optimizer to determine whether control can fall
|
|
|
|
|
off the end of the function body without a return statement. */
|
|
|
|
|
NOTE_INSN_FUNCTION_END,
|
|
|
|
|
|
|
|
|
|
/* This marks the point immediately after the last prologue insn. */
|
|
|
|
|
NOTE_INSN_PROLOGUE_END,
|
|
|
|
|
|
|
|
|
|
/* This marks the point immediately prior to the first epilogue insn. */
|
|
|
|
|
NOTE_INSN_EPILOGUE_BEG,
|
|
|
|
|
|
|
|
|
|
/* Generated in place of user-declared labels when they are deleted. */
|
|
|
|
|
NOTE_INSN_DELETED_LABEL,
|
|
|
|
|
|
|
|
|
|
/* This note indicates the start of the real body of the function,
|
|
|
|
|
i.e. the point just after all of the parms have been moved into
|
|
|
|
|
their homes, etc. */
|
|
|
|
|
NOTE_INSN_FUNCTION_BEG,
|
|
|
|
|
|
|
|
|
|
/* These note where exception handling regions begin and end.
|
|
|
|
|
Uses NOTE_EH_HANDLER to identify the region in question. */
|
|
|
|
|
NOTE_INSN_EH_REGION_BEG,
|
|
|
|
|
NOTE_INSN_EH_REGION_END,
|
|
|
|
|
|
|
|
|
|
/* Generated whenever a duplicate line number note is output. For example,
|
|
|
|
|
one is output after the end of an inline function, in order to prevent
|
|
|
|
|
the line containing the inline call from being counted twice in gcov. */
|
|
|
|
|
NOTE_INSN_REPEATED_LINE_NUMBER,
|
|
|
|
|
|
|
|
|
|
/* Start/end of a live range region, where pseudos allocated on the stack
|
|
|
|
|
can be allocated to temporary registers. Uses NOTE_RANGE_INFO. */
|
|
|
|
|
NOTE_INSN_RANGE_BEG,
|
|
|
|
|
NOTE_INSN_RANGE_END,
|
|
|
|
|
|
|
|
|
|
/* Record which registers are currently live. Uses NOTE_LIVE_INFO. */
|
|
|
|
|
NOTE_INSN_LIVE,
|
|
|
|
|
|
|
|
|
|
/* Record the struct for the following basic block. Uses NOTE_BASIC_BLOCK. */
|
|
|
|
|
NOTE_INSN_BASIC_BLOCK,
|
|
|
|
|
|
|
|
|
|
/* Record the expected value of a register at a location. Uses
|
|
|
|
|
NOTE_EXPECTED_VALUE; stored as (eq (reg) (const_int)). */
|
|
|
|
|
NOTE_INSN_EXPECTED_VALUE,
|
|
|
|
|
|
|
|
|
|
NOTE_INSN_MAX
|
|
|
|
|
};
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Names for NOTE insn's other than line numbers. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern const char * const note_insn_name[NOTE_INSN_MAX - NOTE_INSN_BIAS];
|
|
|
|
|
#define GET_NOTE_INSN_NAME(NOTE_CODE) \
|
|
|
|
|
(note_insn_name[(NOTE_CODE) - (int) NOTE_INSN_BIAS])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* The name of a label, in case it corresponds to an explicit label
|
|
|
|
|
in the input source code. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define LABEL_NAME(RTX) XCSTR (RTX, 6, CODE_LABEL)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* In jump.c, each label contains a count of the number
|
|
|
|
|
of LABEL_REFs that point at it, so unused labels can be deleted. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define LABEL_NUSES(RTX) XCINT (RTX, 3, CODE_LABEL)
|
|
|
|
|
|
|
|
|
|
/* Associate a name with a CODE_LABEL. */
|
|
|
|
|
#define LABEL_ALTERNATE_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* The original regno this ADDRESSOF was built for. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define ADDRESSOF_REGNO(RTX) XCUINT (RTX, 1, ADDRESSOF)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* The variable in the register we took the address of. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define ADDRESSOF_DECL(RTX) XCTREE (RTX, 2, ADDRESSOF)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* In jump.c, each JUMP_INSN can point to a label that it can jump to,
|
|
|
|
|
so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can
|
|
|
|
|
be decremented and possibly the label can be deleted. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define JUMP_LABEL(INSN) XCEXP (INSN, 7, JUMP_INSN)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Once basic blocks are found in flow.c,
|
|
|
|
|
each CODE_LABEL starts a chain that goes through
|
|
|
|
|
all the LABEL_REFs that jump to that label.
|
2002-02-01 18:16:02 +00:00
|
|
|
|
The chain eventually winds up at the CODE_LABEL: it is circular. */
|
|
|
|
|
#define LABEL_REFS(LABEL) XCEXP (LABEL, 4, CODE_LABEL)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* This is the field in the LABEL_REF through which the circular chain
|
|
|
|
|
of references to a particular label is linked.
|
|
|
|
|
This chain is set up in flow.c. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define LABEL_NEXTREF(REF) XCEXP (REF, 1, LABEL_REF)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Once basic blocks are found in flow.c,
|
|
|
|
|
Each LABEL_REF points to its containing instruction with this field. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define CONTAINING_INSN(RTX) XCEXP (RTX, 2, LABEL_REF)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* For a REG rtx, REGNO extracts the register number. ORIGINAL_REGNO holds
|
|
|
|
|
the number the register originally had; for a pseudo register turned into
|
|
|
|
|
a hard reg this will hold the old pseudo register number. */
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define REGNO(RTX) XCUINT (RTX, 0, REG)
|
|
|
|
|
#define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* For a REG rtx, REG_FUNCTION_VALUE_P is nonzero if the reg
|
|
|
|
|
is the current function's return value. */
|
|
|
|
|
|
|
|
|
|
#define REG_FUNCTION_VALUE_P(RTX) ((RTX)->integrated)
|
|
|
|
|
|
|
|
|
|
/* 1 in a REG rtx if it corresponds to a variable declared by the user. */
|
|
|
|
|
#define REG_USERVAR_P(RTX) ((RTX)->volatil)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* 1 in a REG rtx if the register is a pointer. */
|
|
|
|
|
#define REG_POINTER(RTX) ((RTX)->frame_related)
|
|
|
|
|
|
|
|
|
|
/* 1 if the given register REG corresponds to a hard register. */
|
|
|
|
|
#define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG)))
|
|
|
|
|
|
|
|
|
|
/* 1 if the given register number REG_NO corresponds to a hard register. */
|
|
|
|
|
#define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER)
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* For a CONST_INT rtx, INTVAL extracts the integer. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT)
|
|
|
|
|
|
|
|
|
|
/* For a CONST_DOUBLE:
|
|
|
|
|
The usual two ints that hold the value.
|
|
|
|
|
For a DImode, that is all there are;
|
|
|
|
|
and CONST_DOUBLE_LOW is the low-order word and ..._HIGH the high-order.
|
|
|
|
|
For a float, the number of ints varies,
|
|
|
|
|
and CONST_DOUBLE_LOW is the one that should come first *in memory*.
|
|
|
|
|
So use &CONST_DOUBLE_LOW(r) as the address of an array of ints. */
|
|
|
|
|
#define CONST_DOUBLE_LOW(r) XCWINT (r, 1, CONST_DOUBLE)
|
|
|
|
|
#define CONST_DOUBLE_HIGH(r) XCWINT (r, 2, CONST_DOUBLE)
|
|
|
|
|
|
|
|
|
|
/* Link for chain of all CONST_DOUBLEs in use in current function. */
|
|
|
|
|
#define CONST_DOUBLE_CHAIN(r) XCEXP (r, 0, CONST_DOUBLE)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-05-09 20:02:13 +00:00
|
|
|
|
/* For a CONST_VECTOR, return element #n. */
|
|
|
|
|
#define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR)
|
|
|
|
|
|
|
|
|
|
/* For a CONST_VECTOR, return the number of elements in a vector. */
|
|
|
|
|
#define CONST_VECTOR_NUNITS(RTX) XCVECLEN (RTX, 0, CONST_VECTOR)
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* For a SUBREG rtx, SUBREG_REG extracts the value we want a subreg of.
|
2002-02-01 18:16:02 +00:00
|
|
|
|
SUBREG_BYTE extracts the byte-number. */
|
|
|
|
|
|
|
|
|
|
#define SUBREG_REG(RTX) XCEXP (RTX, 0, SUBREG)
|
|
|
|
|
#define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* in rtlanal.c */
|
|
|
|
|
extern unsigned int subreg_lsb PARAMS ((rtx));
|
|
|
|
|
extern unsigned int subreg_regno_offset PARAMS ((unsigned int,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
unsigned int,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern unsigned int subreg_regno PARAMS ((rtx));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* 1 if the REG contained in SUBREG_REG is already known to be
|
|
|
|
|
sign- or zero-extended from the mode of the SUBREG to the mode of
|
|
|
|
|
the reg. SUBREG_PROMOTED_UNSIGNED_P gives the signedness of the
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extension.
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
When used as a LHS, is means that this extension must be done
|
|
|
|
|
when assigning to SUBREG_REG. */
|
|
|
|
|
|
|
|
|
|
#define SUBREG_PROMOTED_VAR_P(RTX) ((RTX)->in_struct)
|
|
|
|
|
#define SUBREG_PROMOTED_UNSIGNED_P(RTX) ((RTX)->unchanging)
|
|
|
|
|
|
|
|
|
|
/* Access various components of an ASM_OPERANDS rtx. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define ASM_OPERANDS_TEMPLATE(RTX) XCSTR (RTX, 0, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XCSTR (RTX, 1, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_OUTPUT_IDX(RTX) XCINT (RTX, 2, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_INPUT_VEC(RTX) XCVEC (RTX, 3, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XCVEC (RTX, 4, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_INPUT(RTX, N) XCVECEXP (RTX, 3, N, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_INPUT_LENGTH(RTX) XCVECLEN (RTX, 3, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_INPUT_CONSTRAINT_EXP(RTX, N) \
|
|
|
|
|
XCVECEXP (RTX, 4, N, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_INPUT_CONSTRAINT(RTX, N) \
|
|
|
|
|
XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0)
|
|
|
|
|
#define ASM_OPERANDS_INPUT_MODE(RTX, N) \
|
|
|
|
|
GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS))
|
|
|
|
|
#define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS)
|
|
|
|
|
#define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS)
|
|
|
|
|
|
|
|
|
|
/* For a MEM RTX, 1 if we should keep the alias set for this mem
|
|
|
|
|
unchanged when we access a component. Set to 1, or example, when we
|
|
|
|
|
are already in a non-addressable component of an aggregate. */
|
|
|
|
|
#define MEM_KEEP_ALIAS_SET_P(RTX) ((RTX)->jump)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* For a MEM rtx, 1 if it's a volatile reference.
|
|
|
|
|
Also in an ASM_OPERANDS rtx. */
|
|
|
|
|
#define MEM_VOLATILE_P(RTX) ((RTX)->volatil)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* For a MEM rtx, 1 if it refers to an aggregate, either to the
|
|
|
|
|
aggregate itself of to a field of the aggregate. If zero, RTX may
|
|
|
|
|
or may not be such a reference. */
|
1996-09-18 05:35:50 +00:00
|
|
|
|
#define MEM_IN_STRUCT_P(RTX) ((RTX)->in_struct)
|
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
/* For a MEM rtx, 1 if it refers to a scalar. If zero, RTX may or may
|
2002-02-01 18:16:02 +00:00
|
|
|
|
not refer to a scalar. */
|
1999-10-16 06:09:09 +00:00
|
|
|
|
#define MEM_SCALAR_P(RTX) ((RTX)->frame_related)
|
|
|
|
|
|
|
|
|
|
/* If VAL is non-zero, set MEM_IN_STRUCT_P and clear MEM_SCALAR_P in
|
|
|
|
|
RTX. Otherwise, vice versa. Use this macro only when you are
|
|
|
|
|
*sure* that you know that the MEM is in a structure, or is a
|
|
|
|
|
scalar. VAL is evaluated only once. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define MEM_SET_IN_STRUCT_P(RTX, VAL) \
|
|
|
|
|
do { \
|
|
|
|
|
if (VAL) \
|
|
|
|
|
{ \
|
|
|
|
|
MEM_IN_STRUCT_P (RTX) = 1; \
|
|
|
|
|
MEM_SCALAR_P (RTX) = 0; \
|
|
|
|
|
} \
|
|
|
|
|
else \
|
|
|
|
|
{ \
|
|
|
|
|
MEM_IN_STRUCT_P (RTX) = 0; \
|
|
|
|
|
MEM_SCALAR_P (RTX) = 1; \
|
|
|
|
|
} \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
/* The memory attribute block. We provide access macros for each value
|
|
|
|
|
in the block and provide defaults if none specified. */
|
|
|
|
|
#define MEM_ATTRS(RTX) X0MEMATTR (RTX, 1)
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* For a MEM rtx, the alias set. If 0, this MEM is not in any alias
|
|
|
|
|
set, and may alias anything. Otherwise, the MEM can only alias
|
|
|
|
|
MEMs in the same alias set. This value is set in a
|
|
|
|
|
language-dependent manner in the front-end, and should not be
|
|
|
|
|
altered in the back-end. These set numbers are tested for zero,
|
|
|
|
|
and compared for equality; they have no other significance. In
|
|
|
|
|
some front-ends, these numbers may correspond in some way to types,
|
|
|
|
|
or other language-level entities, but they need not, and the
|
|
|
|
|
back-end makes no such assumptions. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define MEM_ALIAS_SET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->alias)
|
|
|
|
|
|
|
|
|
|
/* For a MEM rtx, the decl it is known to refer to, if it is known to
|
|
|
|
|
refer to part of a DECL. It may also be a COMPONENT_REF. */
|
|
|
|
|
#define MEM_EXPR(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->expr)
|
|
|
|
|
|
|
|
|
|
/* For a MEM rtx, the offset from the start of MEM_EXPR, if known, as a
|
|
|
|
|
RTX that is always a CONST_INT. */
|
|
|
|
|
#define MEM_OFFSET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->offset)
|
|
|
|
|
|
|
|
|
|
/* For a MEM rtx, the size in bytes of the MEM, if known, as an RTX that
|
|
|
|
|
is always a CONST_INT. */
|
|
|
|
|
#define MEM_SIZE(RTX) \
|
|
|
|
|
(MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->size \
|
|
|
|
|
: GET_MODE (RTX) != BLKmode ? GEN_INT (GET_MODE_SIZE (GET_MODE (RTX))) \
|
|
|
|
|
: 0)
|
|
|
|
|
|
|
|
|
|
/* For a MEM rtx, the alignment in bits. We can use the alignment of the
|
|
|
|
|
mode as a default when STRICT_ALIGNMENT, but not if not. */
|
|
|
|
|
#define MEM_ALIGN(RTX) \
|
|
|
|
|
(MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->align \
|
|
|
|
|
: (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode \
|
|
|
|
|
? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT))
|
|
|
|
|
|
|
|
|
|
/* Copy the attributes that apply to memory locations from RHS to LHS. */
|
|
|
|
|
#define MEM_COPY_ATTRIBUTES(LHS, RHS) \
|
|
|
|
|
(MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \
|
|
|
|
|
MEM_IN_STRUCT_P (LHS) = MEM_IN_STRUCT_P (RHS), \
|
|
|
|
|
MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS), \
|
|
|
|
|
RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS), \
|
|
|
|
|
MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \
|
|
|
|
|
MEM_ATTRS (LHS) = MEM_ATTRS (RHS))
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* For a LABEL_REF, 1 means that this reference is to a label outside the
|
|
|
|
|
loop containing the reference. */
|
|
|
|
|
#define LABEL_OUTSIDE_LOOP_P(RTX) ((RTX)->in_struct)
|
|
|
|
|
|
|
|
|
|
/* For a LABEL_REF, 1 means it is for a nonlocal label. */
|
|
|
|
|
/* Likewise in an EXPR_LIST for a REG_LABEL note. */
|
|
|
|
|
#define LABEL_REF_NONLOCAL_P(RTX) ((RTX)->volatil)
|
|
|
|
|
|
|
|
|
|
/* For a CODE_LABEL, 1 means always consider this label to be needed. */
|
|
|
|
|
#define LABEL_PRESERVE_P(RTX) ((RTX)->in_struct)
|
|
|
|
|
|
|
|
|
|
/* For a REG, 1 means the register is used only in an exit test of a loop. */
|
|
|
|
|
#define REG_LOOP_TEST_P(RTX) ((RTX)->in_struct)
|
|
|
|
|
|
|
|
|
|
/* During sched, for an insn, 1 means that the insn must be scheduled together
|
|
|
|
|
with the preceding insn. */
|
|
|
|
|
#define SCHED_GROUP_P(INSN) ((INSN)->in_struct)
|
|
|
|
|
|
|
|
|
|
/* During sched, for the LOG_LINKS of an insn, these cache the adjusted
|
|
|
|
|
cost of the dependence link. The cost of executing an instruction
|
|
|
|
|
may vary based on how the results are used. LINK_COST_ZERO is 1 when
|
|
|
|
|
the cost through the link varies and is unchanged (i.e., the link has
|
|
|
|
|
zero additional cost). LINK_COST_FREE is 1 when the cost through the
|
|
|
|
|
link is zero (i.e., the link makes the cost free). In other cases,
|
|
|
|
|
the adjustment to the cost is recomputed each time it is needed. */
|
|
|
|
|
#define LINK_COST_ZERO(X) ((X)->jump)
|
|
|
|
|
#define LINK_COST_FREE(X) ((X)->call)
|
|
|
|
|
|
|
|
|
|
/* For a SET rtx, SET_DEST is the place that is set
|
|
|
|
|
and SET_SRC is the value it is set to. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER)
|
|
|
|
|
#define SET_SRC(RTX) XCEXP(RTX, 1, SET)
|
|
|
|
|
#define SET_IS_RETURN_P(RTX) ((RTX)->jump)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define TRAP_CONDITION(RTX) XCEXP (RTX, 0, TRAP_IF)
|
|
|
|
|
#define TRAP_CODE(RTX) XCEXP (RTX, 1, TRAP_IF)
|
|
|
|
|
|
|
|
|
|
/* For a COND_EXEC rtx, COND_EXEC_TEST is the condition to base
|
|
|
|
|
conditionally executing the code on, COND_EXEC_CODE is the code
|
|
|
|
|
to execute if the condition is true. */
|
|
|
|
|
#define COND_EXEC_TEST(RTX) XCEXP (RTX, 0, COND_EXEC)
|
|
|
|
|
#define COND_EXEC_CODE(RTX) XCEXP (RTX, 1, COND_EXEC)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* 1 in a SYMBOL_REF if it addresses this function's constants pool. */
|
|
|
|
|
#define CONSTANT_POOL_ADDRESS_P(RTX) ((RTX)->unchanging)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* 1 in a SYMBOL_REF if it addresses this function's string constant pool. */
|
|
|
|
|
#define STRING_POOL_ADDRESS_P(RTX) ((RTX)->frame_related)
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Flag in a SYMBOL_REF for machine-specific purposes. */
|
|
|
|
|
#define SYMBOL_REF_FLAG(RTX) ((RTX)->volatil)
|
|
|
|
|
|
|
|
|
|
/* 1 means a SYMBOL_REF has been the library function in emit_library_call. */
|
|
|
|
|
#define SYMBOL_REF_USED(RTX) ((RTX)->used)
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* 1 means a SYMBOL_REF is weak. */
|
|
|
|
|
#define SYMBOL_REF_WEAK(RTX) ((RTX)->integrated)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Define a macro to look for REG_INC notes,
|
|
|
|
|
but save time on machines where they never exist. */
|
|
|
|
|
|
|
|
|
|
/* Don't continue this line--convex cc version 4.1 would lose. */
|
|
|
|
|
#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define FIND_REG_INC_NOTE(INSN, REG) \
|
|
|
|
|
((REG) != NULL_RTX && REG_P ((REG)) \
|
|
|
|
|
? find_regno_note ((INSN), REG_INC, REGNO (REG)) \
|
|
|
|
|
: find_reg_note ((INSN), REG_INC, (REG)))
|
1996-09-18 05:35:50 +00:00
|
|
|
|
#else
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define FIND_REG_INC_NOTE(INSN, REG) 0
|
1996-09-18 05:35:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Indicate whether the machine has any sort of auto increment addressing.
|
|
|
|
|
If not, we can avoid checking for REG_INC notes. */
|
|
|
|
|
|
|
|
|
|
/* Don't continue this line--convex cc version 4.1 would lose. */
|
|
|
|
|
#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT))
|
|
|
|
|
#define AUTO_INC_DEC
|
|
|
|
|
#endif
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
#ifndef HAVE_PRE_INCREMENT
|
|
|
|
|
#define HAVE_PRE_INCREMENT 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_PRE_DECREMENT
|
|
|
|
|
#define HAVE_PRE_DECREMENT 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_POST_INCREMENT
|
|
|
|
|
#define HAVE_POST_INCREMENT 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_POST_DECREMENT
|
|
|
|
|
#define HAVE_POST_DECREMENT 0
|
|
|
|
|
#endif
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#ifndef HAVE_POST_MODIFY_DISP
|
|
|
|
|
#define HAVE_POST_MODIFY_DISP 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_POST_MODIFY_REG
|
|
|
|
|
#define HAVE_POST_MODIFY_REG 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_PRE_MODIFY_DISP
|
|
|
|
|
#define HAVE_PRE_MODIFY_DISP 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_PRE_MODIFY_REG
|
|
|
|
|
#define HAVE_PRE_MODIFY_REG 0
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
|
|
|
|
/* Some architectures do not have complete pre/post increment/decrement
|
|
|
|
|
instruction sets, or only move some modes efficiently. These macros
|
|
|
|
|
allow us to tune autoincrement generation. */
|
|
|
|
|
|
|
|
|
|
#ifndef USE_LOAD_POST_INCREMENT
|
|
|
|
|
#define USE_LOAD_POST_INCREMENT(MODE) HAVE_POST_INCREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_LOAD_POST_DECREMENT
|
|
|
|
|
#define USE_LOAD_POST_DECREMENT(MODE) HAVE_POST_DECREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_LOAD_PRE_INCREMENT
|
|
|
|
|
#define USE_LOAD_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_LOAD_PRE_DECREMENT
|
|
|
|
|
#define USE_LOAD_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_STORE_POST_INCREMENT
|
|
|
|
|
#define USE_STORE_POST_INCREMENT(MODE) HAVE_POST_INCREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_STORE_POST_DECREMENT
|
|
|
|
|
#define USE_STORE_POST_DECREMENT(MODE) HAVE_POST_DECREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_STORE_PRE_INCREMENT
|
|
|
|
|
#define USE_STORE_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef USE_STORE_PRE_DECREMENT
|
|
|
|
|
#define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* Accessors for RANGE_INFO. */
|
|
|
|
|
/* For RANGE_{START,END} notes return the RANGE_START note. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_NOTE_START(INSN) XCEXP (INSN, 0, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes return the RANGE_START note. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_NOTE_END(INSN) XCEXP (INSN, 1, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, return the vector containing the registers used
|
|
|
|
|
in the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_REGS(INSN) XCVEC (INSN, 2, RANGE_INFO)
|
|
|
|
|
#define RANGE_INFO_REGS_REG(INSN, N) XCVECEXP (INSN, 2, N, RANGE_INFO)
|
|
|
|
|
#define RANGE_INFO_NUM_REGS(INSN) XCVECLEN (INSN, 2, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, the number of calls within the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_NCALLS(INSN) XCINT (INSN, 3, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, the number of insns within the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_NINSNS(INSN) XCINT (INSN, 4, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, a unique # to identify this range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_UNIQUE(INSN) XCINT (INSN, 5, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* For RANGE_{START,END} notes, the basic block # the range starts with. */
|
|
|
|
|
#define RANGE_INFO_BB_START(INSN) XCINT (INSN, 6, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* For RANGE_{START,END} notes, the basic block # the range ends with. */
|
|
|
|
|
#define RANGE_INFO_BB_END(INSN) XCINT (INSN, 7, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, the loop depth the range is in. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_LOOP_DEPTH(INSN) XCINT (INSN, 8, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, the bitmap of live registers at the start
|
|
|
|
|
of the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_LIVE_START(INSN) XCBITMAP (INSN, 9, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_{START,END} notes, the bitmap of live registers at the end
|
|
|
|
|
of the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_LIVE_END(INSN) XCBITMAP (INSN, 10, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_START notes, the marker # of the start of the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_MARKER_START(INSN) XCINT (INSN, 11, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* For RANGE_START notes, the marker # of the end of the range. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_INFO_MARKER_END(INSN) XCINT (INSN, 12, RANGE_INFO)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* Original pseudo register # for a live range note. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_PSEUDO(INSN,N) XCINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 0, REG)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* Pseudo register # original register is copied into or -1. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_COPY(INSN,N) XCINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 1, REG)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* How many times a register in a live range note was referenced. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_REFS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 2)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* How many times a register in a live range note was set. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_SETS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 3)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* How many times a register in a live range note died. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_DEATHS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 4)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* Whether the original value is needed to be copied into the range register at
|
2002-02-01 18:16:02 +00:00
|
|
|
|
the start of the range. */
|
|
|
|
|
#define RANGE_REG_COPY_FLAGS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 5)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* # of insns the register copy is live over. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_LIVE_LENGTH(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 6)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* # of calls the register copy is live over. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_N_CALLS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 7)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* DECL_NODE pointer of the declaration if the register is a user defined
|
|
|
|
|
variable. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_SYMBOL_NODE(INSN,N) XTREE (XCVECEXP (INSN, 2, N, RANGE_INFO), 8)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* BLOCK_NODE pointer to the block the variable is declared in if the
|
|
|
|
|
register is a user defined variable. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define RANGE_REG_BLOCK_NODE(INSN,N) XTREE (XCVECEXP (INSN, 2, N, RANGE_INFO), 9)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* EXPR_LIST of the distinct ranges a variable is in. */
|
|
|
|
|
#define RANGE_VAR_LIST(INSN) (XEXP (INSN, 0))
|
|
|
|
|
|
|
|
|
|
/* Block a variable is declared in. */
|
|
|
|
|
#define RANGE_VAR_BLOCK(INSN) (XTREE (INSN, 1))
|
|
|
|
|
|
|
|
|
|
/* # of distinct ranges a variable is in. */
|
|
|
|
|
#define RANGE_VAR_NUM(INSN) (XINT (INSN, 2))
|
|
|
|
|
|
|
|
|
|
/* For a NOTE_INSN_LIVE note, the registers which are currently live. */
|
|
|
|
|
#define RANGE_LIVE_BITMAP(INSN) (XBITMAP (INSN, 0))
|
|
|
|
|
|
|
|
|
|
/* For a NOTE_INSN_LIVE note, the original basic block number. */
|
|
|
|
|
#define RANGE_LIVE_ORIG_BLOCK(INSN) (XINT (INSN, 1))
|
2002-02-01 18:16:02 +00:00
|
|
|
|
|
|
|
|
|
/* Determine if the insn is a PHI node. */
|
|
|
|
|
#define PHI_NODE_P(X) \
|
|
|
|
|
((X) && GET_CODE (X) == INSN \
|
|
|
|
|
&& GET_CODE (PATTERN (X)) == SET \
|
|
|
|
|
&& GET_CODE (SET_SRC (PATTERN (X))) == PHI)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Nonzero if we need to distinguish between the return value of this function
|
|
|
|
|
and the return value of a function called by this function. This helps
|
|
|
|
|
integrate.c.
|
|
|
|
|
This is 1 until after the rtl generation pass. */
|
|
|
|
|
extern int rtx_equal_function_value_matters;
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Nonzero when we are generating CONCATs. */
|
|
|
|
|
extern int generating_concat_p;
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Generally useful functions. */
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In expmed.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int ceil_log2 PARAMS ((unsigned HOST_WIDE_INT));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define plus_constant(X, C) plus_constant_wide ((X), (HOST_WIDE_INT) (C))
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* In builtins.c */
|
|
|
|
|
extern rtx expand_builtin_expect_jump PARAMS ((tree, rtx, rtx));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* In explow.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void set_stack_check_libfunc PARAMS ((rtx));
|
|
|
|
|
extern HOST_WIDE_INT trunc_int_for_mode PARAMS ((HOST_WIDE_INT,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern rtx plus_constant_wide PARAMS ((rtx, HOST_WIDE_INT));
|
|
|
|
|
extern rtx plus_constant_for_output_wide PARAMS ((rtx, HOST_WIDE_INT));
|
|
|
|
|
extern void optimize_save_area_alloca PARAMS ((rtx));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx gen_rtx PARAMS ((enum rtx_code,
|
1996-09-18 05:35:50 +00:00
|
|
|
|
enum machine_mode, ...));
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtvec gen_rtvec PARAMS ((int, ...));
|
|
|
|
|
extern rtx copy_insn_1 PARAMS ((rtx));
|
|
|
|
|
extern rtx copy_insn PARAMS ((rtx));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* In rtl.c */
|
|
|
|
|
extern rtx rtx_alloc PARAMS ((RTX_CODE));
|
|
|
|
|
extern rtvec rtvec_alloc PARAMS ((int));
|
|
|
|
|
extern rtx copy_rtx PARAMS ((rtx));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx copy_rtx_if_shared PARAMS ((rtx));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* In rtl.c */
|
|
|
|
|
extern rtx copy_most_rtx PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx shallow_copy_rtx PARAMS ((rtx));
|
|
|
|
|
extern int rtx_equal_p PARAMS ((rtx, rtx));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtvec gen_rtvec_v PARAMS ((int, rtx *));
|
|
|
|
|
extern rtx gen_reg_rtx PARAMS ((enum machine_mode));
|
|
|
|
|
extern rtx gen_label_rtx PARAMS ((void));
|
|
|
|
|
extern int subreg_hard_regno PARAMS ((rtx, int));
|
|
|
|
|
extern rtx gen_lowpart_common PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
extern rtx gen_lowpart PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
|
|
|
|
|
/* In cse.c */
|
|
|
|
|
extern rtx gen_lowpart_if_possible PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx gen_highpart PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
extern rtx gen_highpart_mode PARAMS ((enum machine_mode,
|
|
|
|
|
enum machine_mode, rtx));
|
|
|
|
|
extern rtx gen_realpart PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
extern rtx gen_imagpart PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
extern rtx operand_subword PARAMS ((rtx, unsigned int, int,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern rtx constant_subword PARAMS ((rtx, int,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx operand_subword_force PARAMS ((rtx, unsigned int,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern int subreg_lowpart_p PARAMS ((rtx));
|
|
|
|
|
extern unsigned int subreg_lowpart_offset PARAMS ((enum machine_mode,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern unsigned int subreg_highpart_offset PARAMS ((enum machine_mode,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern rtx make_safe_from PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx convert_memory_address PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
extern rtx get_insns PARAMS ((void));
|
|
|
|
|
extern const char *get_insn_name PARAMS ((int));
|
|
|
|
|
extern rtx get_last_insn PARAMS ((void));
|
|
|
|
|
extern rtx get_last_insn_anywhere PARAMS ((void));
|
|
|
|
|
extern void start_sequence PARAMS ((void));
|
|
|
|
|
extern void push_to_sequence PARAMS ((rtx));
|
|
|
|
|
extern void end_sequence PARAMS ((void));
|
|
|
|
|
extern void push_to_full_sequence PARAMS ((rtx, rtx));
|
|
|
|
|
extern void end_full_sequence PARAMS ((rtx*, rtx*));
|
|
|
|
|
extern rtx gen_sequence PARAMS ((void));
|
|
|
|
|
|
|
|
|
|
/* In varasm.c */
|
|
|
|
|
extern rtx immed_double_const PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, enum machine_mode));
|
|
|
|
|
extern rtx mem_for_const_double PARAMS ((rtx));
|
|
|
|
|
extern rtx force_const_mem PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
|
|
|
|
|
/* In varasm.c */
|
|
|
|
|
extern rtx get_pool_constant PARAMS ((rtx));
|
2002-05-09 20:02:13 +00:00
|
|
|
|
extern rtx get_pool_constant_mark PARAMS ((rtx, bool *));
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern enum machine_mode get_pool_mode PARAMS ((rtx));
|
|
|
|
|
extern rtx get_pool_constant_for_function PARAMS ((struct function *, rtx));
|
|
|
|
|
extern enum machine_mode get_pool_mode_for_function PARAMS ((struct function *, rtx));
|
|
|
|
|
extern int get_pool_offset PARAMS ((rtx));
|
|
|
|
|
extern rtx simplify_subtraction PARAMS ((rtx));
|
|
|
|
|
|
|
|
|
|
/* In function.c */
|
|
|
|
|
extern rtx assign_stack_local PARAMS ((enum machine_mode,
|
1999-08-26 09:30:50 +00:00
|
|
|
|
HOST_WIDE_INT, int));
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx assign_stack_temp PARAMS ((enum machine_mode,
|
1999-08-26 09:30:50 +00:00
|
|
|
|
HOST_WIDE_INT, int));
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx assign_stack_temp_for_type PARAMS ((enum machine_mode,
|
|
|
|
|
HOST_WIDE_INT, int, tree));
|
|
|
|
|
extern rtx assign_temp PARAMS ((tree, int, int, int));
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx emit_insn_before PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_jump_insn_before PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_call_insn_before PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_barrier_before PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_label_before PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_note_before PARAMS ((int, rtx));
|
|
|
|
|
extern rtx emit_insn_after PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_jump_insn_after PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_barrier_after PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_label_after PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_note_after PARAMS ((int, rtx));
|
|
|
|
|
extern rtx emit_line_note_after PARAMS ((const char *, int, rtx));
|
|
|
|
|
extern rtx emit_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_insns PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_insns_before PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_insns_after PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx emit_jump_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_call_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_label PARAMS ((rtx));
|
|
|
|
|
extern rtx emit_barrier PARAMS ((void));
|
|
|
|
|
extern rtx emit_line_note PARAMS ((const char *, int));
|
|
|
|
|
extern rtx emit_note PARAMS ((const char *, int));
|
|
|
|
|
extern rtx emit_line_note_force PARAMS ((const char *, int));
|
|
|
|
|
extern rtx make_insn_raw PARAMS ((rtx));
|
|
|
|
|
extern rtx previous_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx next_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx prev_nonnote_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx next_nonnote_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx prev_real_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx next_real_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx prev_active_insn PARAMS ((rtx));
|
|
|
|
|
extern rtx next_active_insn PARAMS ((rtx));
|
|
|
|
|
extern int active_insn_p PARAMS ((rtx));
|
|
|
|
|
extern rtx prev_label PARAMS ((rtx));
|
|
|
|
|
extern rtx next_label PARAMS ((rtx));
|
|
|
|
|
extern rtx next_cc0_user PARAMS ((rtx));
|
|
|
|
|
extern rtx prev_cc0_setter PARAMS ((rtx));
|
|
|
|
|
|
|
|
|
|
/* In jump.c */
|
|
|
|
|
extern rtx next_nondeleted_insn PARAMS ((rtx));
|
|
|
|
|
extern enum rtx_code reverse_condition PARAMS ((enum rtx_code));
|
|
|
|
|
extern enum rtx_code reverse_condition_maybe_unordered PARAMS ((enum rtx_code));
|
|
|
|
|
extern enum rtx_code swap_condition PARAMS ((enum rtx_code));
|
|
|
|
|
extern enum rtx_code unsigned_condition PARAMS ((enum rtx_code));
|
|
|
|
|
extern enum rtx_code signed_condition PARAMS ((enum rtx_code));
|
|
|
|
|
extern void mark_jump_label PARAMS ((rtx, rtx, int));
|
|
|
|
|
extern void cleanup_barriers PARAMS ((void));
|
|
|
|
|
|
|
|
|
|
/* In jump.c */
|
|
|
|
|
extern bool squeeze_notes PARAMS ((rtx *, rtx *));
|
|
|
|
|
extern rtx delete_related_insns PARAMS ((rtx));
|
|
|
|
|
extern void delete_jump PARAMS ((rtx));
|
|
|
|
|
extern void delete_barrier PARAMS ((rtx));
|
|
|
|
|
extern rtx get_label_before PARAMS ((rtx));
|
|
|
|
|
extern rtx get_label_after PARAMS ((rtx));
|
|
|
|
|
extern rtx follow_jumps PARAMS ((rtx));
|
|
|
|
|
|
|
|
|
|
/* In recog.c */
|
|
|
|
|
extern rtx *find_constant_term_loc PARAMS ((rtx *));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx try_split PARAMS ((rtx, rtx, int));
|
|
|
|
|
extern int split_branch_probability;
|
|
|
|
|
|
|
|
|
|
/* In unknown file */
|
|
|
|
|
extern rtx split_insns PARAMS ((rtx, rtx));
|
|
|
|
|
|
|
|
|
|
/* In simplify-rtx.c */
|
|
|
|
|
extern rtx simplify_unary_operation PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode, rtx,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern rtx simplify_binary_operation PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode, rtx,
|
|
|
|
|
rtx));
|
|
|
|
|
extern rtx simplify_ternary_operation PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
enum machine_mode, rtx, rtx,
|
|
|
|
|
rtx));
|
|
|
|
|
extern rtx simplify_relational_operation PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode, rtx,
|
|
|
|
|
rtx));
|
|
|
|
|
extern rtx simplify_gen_binary PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
rtx, rtx));
|
|
|
|
|
extern rtx simplify_gen_unary PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode, rtx,
|
|
|
|
|
enum machine_mode));
|
|
|
|
|
extern rtx simplify_gen_ternary PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
rtx, rtx, rtx));
|
|
|
|
|
extern rtx simplify_gen_relational PARAMS ((enum rtx_code,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
rtx, rtx));
|
|
|
|
|
extern rtx simplify_subreg PARAMS ((enum machine_mode,
|
|
|
|
|
rtx,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
unsigned int));
|
|
|
|
|
extern rtx simplify_gen_subreg PARAMS ((enum machine_mode,
|
|
|
|
|
rtx,
|
|
|
|
|
enum machine_mode,
|
|
|
|
|
unsigned int));
|
|
|
|
|
extern rtx simplify_replace_rtx PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern rtx simplify_rtx PARAMS ((rtx));
|
|
|
|
|
extern rtx avoid_constant_pool_reference PARAMS ((rtx));
|
|
|
|
|
|
|
|
|
|
/* In function.c */
|
|
|
|
|
extern rtx gen_mem_addressof PARAMS ((rtx, tree));
|
|
|
|
|
|
|
|
|
|
/* In regclass.c */
|
|
|
|
|
extern enum machine_mode choose_hard_reg_mode PARAMS ((unsigned int,
|
|
|
|
|
unsigned int));
|
|
|
|
|
|
|
|
|
|
/* In emit-rtl.c */
|
|
|
|
|
extern rtx set_unique_reg_note PARAMS ((rtx, enum reg_note, rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* Functions in rtlanal.c */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Single set is implemented as macro for performance reasons. */
|
|
|
|
|
#define single_set(I) (INSN_P (I) \
|
|
|
|
|
? (GET_CODE (PATTERN (I)) == SET \
|
|
|
|
|
? PATTERN (I) : single_set_1 (I)) \
|
|
|
|
|
: NULL_RTX)
|
|
|
|
|
#define single_set_1(I) single_set_2 (I, PATTERN (I))
|
|
|
|
|
|
|
|
|
|
extern int rtx_addr_can_trap_p PARAMS ((rtx));
|
|
|
|
|
extern int rtx_unstable_p PARAMS ((rtx));
|
|
|
|
|
extern int rtx_varies_p PARAMS ((rtx, int));
|
|
|
|
|
extern int rtx_addr_varies_p PARAMS ((rtx, int));
|
|
|
|
|
extern HOST_WIDE_INT get_integer_term PARAMS ((rtx));
|
|
|
|
|
extern rtx get_related_value PARAMS ((rtx));
|
|
|
|
|
extern rtx get_jump_table_offset PARAMS ((rtx, rtx *));
|
|
|
|
|
extern int reg_mentioned_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int count_occurrences PARAMS ((rtx, rtx, int));
|
|
|
|
|
extern int reg_referenced_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int reg_used_between_p PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern int reg_referenced_between_p PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern int reg_set_between_p PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern int regs_set_between_p PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern int commutative_operand_precedence PARAMS ((rtx));
|
|
|
|
|
extern int swap_commutative_operands_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int modified_between_p PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern int no_labels_between_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int no_jumps_between_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int modified_in_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int insn_dependent_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int reg_set_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx single_set_2 PARAMS ((rtx, rtx));
|
|
|
|
|
extern int multiple_sets PARAMS ((rtx));
|
|
|
|
|
extern int set_noop_p PARAMS ((rtx));
|
|
|
|
|
extern int noop_move_p PARAMS ((rtx));
|
|
|
|
|
extern rtx find_last_value PARAMS ((rtx, rtx *, rtx, int));
|
|
|
|
|
extern int refers_to_regno_p PARAMS ((unsigned int, unsigned int,
|
|
|
|
|
rtx, rtx *));
|
|
|
|
|
extern int reg_overlap_mentioned_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx set_of PARAMS ((rtx, rtx));
|
|
|
|
|
extern void note_stores PARAMS ((rtx,
|
|
|
|
|
void (*) (rtx, rtx, void *),
|
|
|
|
|
void *));
|
|
|
|
|
extern void note_uses PARAMS ((rtx *,
|
|
|
|
|
void (*) (rtx *, void *),
|
|
|
|
|
void *));
|
|
|
|
|
extern rtx reg_set_last PARAMS ((rtx, rtx));
|
|
|
|
|
extern int dead_or_set_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern int dead_or_set_regno_p PARAMS ((rtx, unsigned int));
|
|
|
|
|
extern rtx find_reg_note PARAMS ((rtx, enum reg_note, rtx));
|
|
|
|
|
extern rtx find_regno_note PARAMS ((rtx, enum reg_note,
|
|
|
|
|
unsigned int));
|
|
|
|
|
extern rtx find_reg_equal_equiv_note PARAMS ((rtx));
|
|
|
|
|
extern int find_reg_fusage PARAMS ((rtx, enum rtx_code, rtx));
|
|
|
|
|
extern int find_regno_fusage PARAMS ((rtx, enum rtx_code,
|
|
|
|
|
unsigned int));
|
2002-05-09 20:02:13 +00:00
|
|
|
|
extern int pure_call_p PARAMS ((rtx));
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void remove_note PARAMS ((rtx, rtx));
|
|
|
|
|
extern int side_effects_p PARAMS ((rtx));
|
|
|
|
|
extern int volatile_refs_p PARAMS ((rtx));
|
|
|
|
|
extern int volatile_insn_p PARAMS ((rtx));
|
|
|
|
|
extern int may_trap_p PARAMS ((rtx));
|
|
|
|
|
extern int inequality_comparisons_p PARAMS ((rtx));
|
|
|
|
|
extern rtx replace_rtx PARAMS ((rtx, rtx, rtx));
|
|
|
|
|
extern rtx replace_regs PARAMS ((rtx, rtx *, unsigned int,
|
|
|
|
|
int));
|
|
|
|
|
extern int computed_jump_p PARAMS ((rtx));
|
|
|
|
|
typedef int (*rtx_function) PARAMS ((rtx *, void *));
|
|
|
|
|
extern int for_each_rtx PARAMS ((rtx *, rtx_function, void *));
|
|
|
|
|
extern rtx regno_use_in PARAMS ((unsigned int, rtx));
|
|
|
|
|
extern int auto_inc_p PARAMS ((rtx));
|
|
|
|
|
extern int in_expr_list_p PARAMS ((rtx, rtx));
|
|
|
|
|
extern void remove_node_from_expr_list PARAMS ((rtx, rtx *));
|
|
|
|
|
extern int insns_safe_to_move_p PARAMS ((rtx, rtx, rtx *));
|
|
|
|
|
extern int loc_mentioned_in_p PARAMS ((rtx *, rtx));
|
|
|
|
|
extern rtx find_first_parameter_load PARAMS ((rtx, rtx));
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
|
|
|
|
/* flow.c */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx find_use_as_address PARAMS ((rtx, rtx, HOST_WIDE_INT));
|
|
|
|
|
void init_EXPR_INSN_LIST_cache PARAMS ((void));
|
|
|
|
|
void free_EXPR_LIST_list PARAMS ((rtx *));
|
|
|
|
|
void free_INSN_LIST_list PARAMS ((rtx *));
|
|
|
|
|
void free_EXPR_LIST_node PARAMS ((rtx));
|
|
|
|
|
void free_INSN_LIST_node PARAMS ((rtx));
|
|
|
|
|
rtx alloc_INSN_LIST PARAMS ((rtx, rtx));
|
|
|
|
|
rtx alloc_EXPR_LIST PARAMS ((int, rtx, rtx));
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
|
|
|
|
/* regclass.c */
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Maximum number of parallel sets and clobbers in any insn in this fn.
|
|
|
|
|
Always at least 3, since the combiner could put that many togetherm
|
|
|
|
|
and we want this to remain correct for all the remaining passes. */
|
|
|
|
|
|
|
|
|
|
extern int max_parallel;
|
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
/* Free up register info memory. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void free_reg_info PARAMS ((void));
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
|
|
|
|
/* recog.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int asm_noperands PARAMS ((rtx));
|
|
|
|
|
extern const char *decode_asm_operands PARAMS ((rtx, rtx *, rtx **,
|
1999-10-16 06:09:09 +00:00
|
|
|
|
const char **,
|
|
|
|
|
enum machine_mode *));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern enum reg_class reg_preferred_class PARAMS ((int));
|
|
|
|
|
extern enum reg_class reg_alternate_class PARAMS ((int));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx get_first_nonparm_insn PARAMS ((void));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void split_all_insns PARAMS ((int));
|
|
|
|
|
extern void split_all_insns_noflow PARAMS ((void));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
#define MAX_SAVED_CONST_INT 64
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define const0_rtx (const_int_rtx[MAX_SAVED_CONST_INT])
|
|
|
|
|
#define const1_rtx (const_int_rtx[MAX_SAVED_CONST_INT+1])
|
|
|
|
|
#define const2_rtx (const_int_rtx[MAX_SAVED_CONST_INT+2])
|
|
|
|
|
#define constm1_rtx (const_int_rtx[MAX_SAVED_CONST_INT-1])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
extern rtx const_true_rtx;
|
|
|
|
|
|
|
|
|
|
extern rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE];
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Returns a constant 0 rtx in mode MODE. Integer modes are treated the
|
1996-09-18 05:35:50 +00:00
|
|
|
|
same as VOIDmode. */
|
|
|
|
|
|
|
|
|
|
#define CONST0_RTX(MODE) (const_tiny_rtx[0][(int) (MODE)])
|
|
|
|
|
|
|
|
|
|
/* Likewise, for the constants 1 and 2. */
|
|
|
|
|
|
|
|
|
|
#define CONST1_RTX(MODE) (const_tiny_rtx[1][(int) (MODE)])
|
|
|
|
|
#define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)])
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* If HARD_FRAME_POINTER_REGNUM is defined, then a special dummy reg
|
|
|
|
|
is used to represent the frame pointer. This is because the
|
|
|
|
|
hard frame pointer and the automatic variables are separated by an amount
|
|
|
|
|
that cannot be determined until after register allocation. We can assume
|
|
|
|
|
that in this case ELIMINABLE_REGS will be defined, one action of which
|
|
|
|
|
will be to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM. */
|
|
|
|
|
#ifndef HARD_FRAME_POINTER_REGNUM
|
|
|
|
|
#define HARD_FRAME_POINTER_REGNUM FRAME_POINTER_REGNUM
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Index labels for global_rtl. */
|
|
|
|
|
enum global_rtl_index
|
1999-08-26 09:30:50 +00:00
|
|
|
|
{
|
2002-02-01 18:16:02 +00:00
|
|
|
|
GR_PC,
|
|
|
|
|
GR_CC0,
|
|
|
|
|
GR_STACK_POINTER,
|
|
|
|
|
GR_FRAME_POINTER,
|
|
|
|
|
/* For register elimination to work properly these hard_frame_pointer_rtx,
|
|
|
|
|
frame_pointer_rtx, and arg_pointer_rtx must be the same if they refer to
|
|
|
|
|
the same register. */
|
|
|
|
|
#if FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM
|
|
|
|
|
GR_ARG_POINTER = GR_FRAME_POINTER,
|
|
|
|
|
#endif
|
|
|
|
|
#if HARD_FRAME_POINTER_REGNUM == FRAME_POINTER_REGNUM
|
|
|
|
|
GR_HARD_FRAME_POINTER = GR_FRAME_POINTER,
|
|
|
|
|
#else
|
|
|
|
|
GR_HARD_FRAME_POINTER,
|
|
|
|
|
#endif
|
|
|
|
|
#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
|
|
|
|
|
#if HARD_FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM
|
|
|
|
|
GR_ARG_POINTER = GR_HARD_FRAME_POINTER,
|
|
|
|
|
#else
|
|
|
|
|
GR_ARG_POINTER,
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
GR_VIRTUAL_INCOMING_ARGS,
|
|
|
|
|
GR_VIRTUAL_STACK_ARGS,
|
|
|
|
|
GR_VIRTUAL_STACK_DYNAMIC,
|
|
|
|
|
GR_VIRTUAL_OUTGOING_ARGS,
|
|
|
|
|
GR_VIRTUAL_CFA,
|
|
|
|
|
|
|
|
|
|
GR_MAX
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Pointers to standard pieces of rtx are stored here. */
|
|
|
|
|
extern rtx global_rtl[GR_MAX];
|
|
|
|
|
|
|
|
|
|
/* Standard pieces of rtx, to be substituted directly into things. */
|
|
|
|
|
#define pc_rtx (global_rtl[GR_PC])
|
|
|
|
|
#define cc0_rtx (global_rtl[GR_CC0])
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* All references to certain hard regs, except those created
|
|
|
|
|
by allocating pseudo regs into them (when that's possible),
|
|
|
|
|
go through these unique rtx objects. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define stack_pointer_rtx (global_rtl[GR_STACK_POINTER])
|
|
|
|
|
#define frame_pointer_rtx (global_rtl[GR_FRAME_POINTER])
|
|
|
|
|
#define hard_frame_pointer_rtx (global_rtl[GR_HARD_FRAME_POINTER])
|
|
|
|
|
#define arg_pointer_rtx (global_rtl[GR_ARG_POINTER])
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
extern rtx pic_offset_table_rtx;
|
|
|
|
|
extern rtx struct_value_rtx;
|
|
|
|
|
extern rtx struct_value_incoming_rtx;
|
|
|
|
|
extern rtx static_chain_rtx;
|
|
|
|
|
extern rtx static_chain_incoming_rtx;
|
1999-10-16 06:09:09 +00:00
|
|
|
|
extern rtx return_address_pointer_rtx;
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* Include the RTL generation functions. */
|
|
|
|
|
|
|
|
|
|
#ifndef NO_GENRTL_H
|
|
|
|
|
#include "genrtl.h"
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* There are some RTL codes that require special attention; the
|
|
|
|
|
generation functions included above do the raw handling. If you
|
|
|
|
|
add to this list, modify special_rtx in gengenrtl.c as well. You
|
|
|
|
|
should also modify gen_rtx to use the special function. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx gen_rtx_CONST_DOUBLE PARAMS ((enum machine_mode,
|
1999-10-16 06:09:09 +00:00
|
|
|
|
HOST_WIDE_INT, HOST_WIDE_INT));
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx gen_rtx_CONST_INT PARAMS ((enum machine_mode, HOST_WIDE_INT));
|
|
|
|
|
extern rtx gen_raw_REG PARAMS ((enum machine_mode, int));
|
|
|
|
|
extern rtx gen_rtx_REG PARAMS ((enum machine_mode, int));
|
|
|
|
|
extern rtx gen_rtx_SUBREG PARAMS ((enum machine_mode, rtx, int));
|
|
|
|
|
extern rtx gen_rtx_MEM PARAMS ((enum machine_mode, rtx));
|
|
|
|
|
|
|
|
|
|
extern rtx gen_lowpart_SUBREG PARAMS ((enum machine_mode, rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* We need the cast here to ensure that we get the same result both with
|
|
|
|
|
and without prototypes. */
|
|
|
|
|
#define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (HOST_WIDE_INT) (N))
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Virtual registers are used during RTL generation to refer to locations into
|
|
|
|
|
the stack frame when the actual location isn't known until RTL generation
|
|
|
|
|
is complete. The routine instantiate_virtual_regs replaces these with
|
|
|
|
|
the proper value, which is normally {frame,arg,stack}_pointer_rtx plus
|
|
|
|
|
a constant. */
|
|
|
|
|
|
|
|
|
|
#define FIRST_VIRTUAL_REGISTER (FIRST_PSEUDO_REGISTER)
|
|
|
|
|
|
|
|
|
|
/* This points to the first word of the incoming arguments passed on the stack,
|
|
|
|
|
either by the caller or by the callee when pretending it was passed by the
|
|
|
|
|
caller. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define virtual_incoming_args_rtx (global_rtl[GR_VIRTUAL_INCOMING_ARGS])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
#define VIRTUAL_INCOMING_ARGS_REGNUM (FIRST_VIRTUAL_REGISTER)
|
|
|
|
|
|
|
|
|
|
/* If FRAME_GROWS_DOWNWARD, this points to immediately above the first
|
|
|
|
|
variable on the stack. Otherwise, it points to the first variable on
|
|
|
|
|
the stack. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define virtual_stack_vars_rtx (global_rtl[GR_VIRTUAL_STACK_ARGS])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
#define VIRTUAL_STACK_VARS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 1)
|
|
|
|
|
|
|
|
|
|
/* This points to the location of dynamically-allocated memory on the stack
|
|
|
|
|
immediately after the stack pointer has been adjusted by the amount
|
|
|
|
|
desired. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define virtual_stack_dynamic_rtx (global_rtl[GR_VIRTUAL_STACK_DYNAMIC])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
#define VIRTUAL_STACK_DYNAMIC_REGNUM ((FIRST_VIRTUAL_REGISTER) + 2)
|
|
|
|
|
|
|
|
|
|
/* This points to the location in the stack at which outgoing arguments should
|
|
|
|
|
be written when the stack is pre-pushed (arguments pushed using push
|
|
|
|
|
insns always use sp). */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define virtual_outgoing_args_rtx (global_rtl[GR_VIRTUAL_OUTGOING_ARGS])
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
#define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3)
|
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
/* This points to the Canonical Frame Address of the function. This
|
|
|
|
|
should corrospond to the CFA produced by INCOMING_FRAME_SP_OFFSET,
|
|
|
|
|
but is calculated relative to the arg pointer for simplicity; the
|
2002-02-01 18:16:02 +00:00
|
|
|
|
frame pointer nor stack pointer are necessarily fixed relative to
|
1999-10-16 06:09:09 +00:00
|
|
|
|
the CFA until after reload. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
#define virtual_cfa_rtx (global_rtl[GR_VIRTUAL_CFA])
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
|
|
|
|
#define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4)
|
|
|
|
|
|
|
|
|
|
#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4)
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* Nonzero if REGNUM is a pointer into the stack frame. */
|
|
|
|
|
#define REGNO_PTR_FRAME_P(REGNUM) \
|
|
|
|
|
((REGNUM) == STACK_POINTER_REGNUM \
|
|
|
|
|
|| (REGNUM) == FRAME_POINTER_REGNUM \
|
|
|
|
|
|| (REGNUM) == HARD_FRAME_POINTER_REGNUM \
|
|
|
|
|
|| (REGNUM) == ARG_POINTER_REGNUM \
|
|
|
|
|
|| ((REGNUM) >= FIRST_VIRTUAL_REGISTER \
|
|
|
|
|
&& (REGNUM) <= LAST_VIRTUAL_REGISTER))
|
|
|
|
|
|
|
|
|
|
/* REGNUM never really appearing in the INSN stream. */
|
|
|
|
|
#define INVALID_REGNUM (~(unsigned int) 0)
|
|
|
|
|
|
|
|
|
|
extern rtx find_next_ref PARAMS ((rtx, rtx));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern rtx output_constant_def PARAMS ((tree, int));
|
|
|
|
|
extern rtx immed_real_const PARAMS ((tree));
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
/* Define a default value for STORE_FLAG_VALUE. */
|
|
|
|
|
|
|
|
|
|
#ifndef STORE_FLAG_VALUE
|
|
|
|
|
#define STORE_FLAG_VALUE 1
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
/* Nonzero after the second flow pass has completed.
|
|
|
|
|
Set to 1 or 0 by toplev.c */
|
|
|
|
|
extern int flow2_completed;
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Nonzero after end of reload pass.
|
1999-10-16 06:09:09 +00:00
|
|
|
|
Set to 1 or 0 by reload1.c. */
|
1996-09-18 05:35:50 +00:00
|
|
|
|
|
|
|
|
|
extern int reload_completed;
|
|
|
|
|
|
|
|
|
|
/* Set to 1 while reload_as_needed is operating.
|
|
|
|
|
Required by some machines to handle any generated moves differently. */
|
|
|
|
|
|
|
|
|
|
extern int reload_in_progress;
|
|
|
|
|
|
|
|
|
|
/* If this is nonzero, we do not bother generating VOLATILE
|
|
|
|
|
around volatile memory references, and we are willing to
|
|
|
|
|
output indirect addresses. If cse is to follow, we reject
|
|
|
|
|
indirect addresses so a useful potential cse is generated;
|
|
|
|
|
if it is used only once, instruction combination will produce
|
|
|
|
|
the same indirect address eventually. */
|
|
|
|
|
extern int cse_not_expected;
|
|
|
|
|
|
1999-10-16 06:09:09 +00:00
|
|
|
|
/* Set to nonzero before life analysis to indicate that it is unsafe to
|
|
|
|
|
generate any new pseudo registers. */
|
|
|
|
|
extern int no_new_pseudos;
|
|
|
|
|
|
1996-09-18 05:35:50 +00:00
|
|
|
|
/* Translates rtx code to tree code, for those codes needed by
|
|
|
|
|
REAL_ARITHMETIC. The function returns an int because the caller may not
|
|
|
|
|
know what `enum tree_code' means. */
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int rtx_to_tree_code PARAMS ((enum rtx_code));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In tree.c */
|
|
|
|
|
struct obstack;
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void gcc_obstack_init PARAMS ((struct obstack *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In cse.c */
|
|
|
|
|
struct cse_basic_block_data;
|
2002-02-01 18:16:02 +00:00
|
|
|
|
|
|
|
|
|
/* Return the right cost to give to an operation
|
|
|
|
|
to make the cost of the corresponding register-to-register instruction
|
|
|
|
|
N times that of a fast register-to-register instruction. */
|
|
|
|
|
#define COSTS_N_INSNS(N) ((N) * 4)
|
|
|
|
|
|
|
|
|
|
/* Maximum cost of a rtl expression. This value has the special meaning
|
|
|
|
|
not to use an rtx with this cost under any circumstances. */
|
|
|
|
|
#define MAX_COST INT_MAX
|
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extern int rtx_cost PARAMS ((rtx, enum rtx_code));
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extern int address_cost PARAMS ((rtx, enum machine_mode));
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extern void delete_trivially_dead_insns PARAMS ((rtx, int, int));
|
1999-08-26 09:30:50 +00:00
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#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
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extern int cse_main PARAMS ((rtx, int, int, FILE *));
|
1999-08-26 09:30:50 +00:00
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#endif
|
2002-02-01 18:16:02 +00:00
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extern void cse_end_of_basic_block PARAMS ((rtx,
|
1999-08-26 09:30:50 +00:00
|
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struct cse_basic_block_data *,
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int, int, int));
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/* In jump.c */
|
2002-02-01 18:16:02 +00:00
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extern int comparison_dominates_p PARAMS ((enum rtx_code, enum rtx_code));
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extern int condjump_p PARAMS ((rtx));
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extern int any_condjump_p PARAMS ((rtx));
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extern int any_uncondjump_p PARAMS ((rtx));
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extern int safe_to_remove_jump_p PARAMS ((rtx));
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extern rtx pc_set PARAMS ((rtx));
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extern rtx condjump_label PARAMS ((rtx));
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extern int simplejump_p PARAMS ((rtx));
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extern int returnjump_p PARAMS ((rtx));
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extern int onlyjump_p PARAMS ((rtx));
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extern int only_sets_cc0_p PARAMS ((rtx));
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extern int sets_cc0_p PARAMS ((rtx));
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extern int invert_jump_1 PARAMS ((rtx, rtx));
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extern int invert_jump PARAMS ((rtx, rtx, int));
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extern int rtx_renumbered_equal_p PARAMS ((rtx, rtx));
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extern int true_regnum PARAMS ((rtx));
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extern int redirect_jump_1 PARAMS ((rtx, rtx));
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extern int redirect_jump PARAMS ((rtx, rtx, int));
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extern void rebuild_jump_labels PARAMS ((rtx));
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extern enum rtx_code reversed_comparison_code PARAMS ((rtx, rtx));
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extern enum rtx_code reversed_comparison_code_parts PARAMS ((enum rtx_code,
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rtx, rtx, rtx));
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extern void delete_for_peephole PARAMS ((rtx, rtx));
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extern int condjump_in_parallel_p PARAMS ((rtx));
|
2002-05-09 20:02:13 +00:00
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extern void never_reached_warning PARAMS ((rtx, rtx));
|
2002-02-01 18:16:02 +00:00
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extern void purge_line_number_notes PARAMS ((rtx));
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extern void copy_loop_headers PARAMS ((rtx));
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/* In emit-rtl.c. */
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extern int max_reg_num PARAMS ((void));
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extern int max_label_num PARAMS ((void));
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extern int get_first_label_num PARAMS ((void));
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extern void delete_insns_since PARAMS ((rtx));
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extern void mark_reg_pointer PARAMS ((rtx, int));
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extern void mark_user_reg PARAMS ((rtx));
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extern void reset_used_flags PARAMS ((rtx));
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extern void reorder_insns PARAMS ((rtx, rtx, rtx));
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extern void reorder_insns_nobb PARAMS ((rtx, rtx, rtx));
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extern int get_max_uid PARAMS ((void));
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extern int in_sequence_p PARAMS ((void));
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extern void force_next_line_note PARAMS ((void));
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extern void clear_emit_caches PARAMS ((void));
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extern void init_emit PARAMS ((void));
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extern void init_emit_once PARAMS ((int));
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|
extern void push_topmost_sequence PARAMS ((void));
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|
extern void pop_topmost_sequence PARAMS ((void));
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extern int subreg_realpart_p PARAMS ((rtx));
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|
extern void reverse_comparison PARAMS ((rtx));
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|
extern void set_new_first_and_last_insn PARAMS ((rtx, rtx));
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|
extern void set_new_first_and_last_label_num PARAMS ((int, int));
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|
extern void set_new_last_label_num PARAMS ((int));
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|
extern void unshare_all_rtl_again PARAMS ((rtx));
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|
extern void set_last_insn PARAMS ((rtx));
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|
extern void link_cc0_insns PARAMS ((rtx));
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|
extern void add_insn PARAMS ((rtx));
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|
extern void add_insn_before PARAMS ((rtx, rtx));
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|
extern void add_insn_after PARAMS ((rtx, rtx));
|
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|
extern void remove_insn PARAMS ((rtx));
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|
extern void reorder_insns_with_line_notes PARAMS ((rtx, rtx, rtx));
|
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|
extern void emit_insn_after_with_line_notes PARAMS ((rtx, rtx, rtx));
|
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|
extern enum rtx_code classify_insn PARAMS ((rtx));
|
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|
extern rtx emit PARAMS ((rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* Query and clear/ restore no_line_numbers. This is used by the
|
|
|
|
|
switch / case handling in stmt.c to give proper line numbers in
|
|
|
|
|
warnings about unreachable code. */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
int force_line_numbers PARAMS ((void));
|
|
|
|
|
void restore_line_number_status PARAMS ((int old_value));
|
|
|
|
|
extern void renumber_insns PARAMS ((FILE *));
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|
|
extern void remove_unnecessary_notes PARAMS ((void));
|
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|
extern rtx delete_insn PARAMS ((rtx));
|
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|
extern void delete_insn_chain PARAMS ((rtx, rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
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|
|
|
|
/* In combine.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int combine_instructions PARAMS ((rtx, unsigned int));
|
|
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|
|
extern unsigned int extended_count PARAMS ((rtx, enum machine_mode, int));
|
|
|
|
|
extern rtx remove_death PARAMS ((unsigned int, rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void dump_combine_stats PARAMS ((FILE *));
|
|
|
|
|
extern void dump_combine_total_stats PARAMS ((FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* In sched.c. */
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void schedule_insns PARAMS ((FILE *));
|
|
|
|
|
extern void schedule_ebbs PARAMS ((FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void fix_sched_param PARAMS ((const char *, const char *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In print-rtl.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern const char *print_rtx_head;
|
|
|
|
|
extern void debug_rtx PARAMS ((rtx));
|
|
|
|
|
extern void debug_rtx_list PARAMS ((rtx, int));
|
|
|
|
|
extern void debug_rtx_range PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx debug_rtx_find PARAMS ((rtx, int));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void print_mem_expr PARAMS ((FILE *, tree));
|
|
|
|
|
extern void print_rtl PARAMS ((FILE *, rtx));
|
|
|
|
|
extern void print_simple_rtl PARAMS ((FILE *, rtx));
|
|
|
|
|
extern int print_rtl_single PARAMS ((FILE *, rtx));
|
|
|
|
|
extern void print_inline_rtx PARAMS ((FILE *, rtx, int));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* In loop.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void init_loop PARAMS ((void));
|
|
|
|
|
extern rtx libcall_other_reg PARAMS ((rtx, rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void loop_optimize PARAMS ((rtx, FILE *, int));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void record_excess_regs PARAMS ((rtx, rtx, rtx *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In function.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void reposition_prologue_and_epilogue_notes PARAMS ((rtx));
|
|
|
|
|
extern void thread_prologue_and_epilogue_insns PARAMS ((rtx));
|
|
|
|
|
extern int prologue_epilogue_contains PARAMS ((rtx));
|
|
|
|
|
extern int sibcall_epilogue_contains PARAMS ((rtx));
|
|
|
|
|
extern void preserve_rtl_expr_result PARAMS ((rtx));
|
|
|
|
|
extern void mark_temp_addr_taken PARAMS ((rtx));
|
|
|
|
|
extern void update_temp_slot_address PARAMS ((rtx, rtx));
|
|
|
|
|
extern void purge_addressof PARAMS ((rtx));
|
|
|
|
|
extern void purge_hard_subreg_sets PARAMS ((rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In stmt.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void set_file_and_line_for_stmt PARAMS ((const char *, int));
|
|
|
|
|
extern void expand_null_return PARAMS ((void));
|
|
|
|
|
extern void emit_jump PARAMS ((rtx));
|
|
|
|
|
extern int preserve_subexpressions_p PARAMS ((void));
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
1999-08-26 09:30:50 +00:00
|
|
|
|
/* In expr.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void move_by_pieces PARAMS ((rtx, rtx,
|
|
|
|
|
unsigned HOST_WIDE_INT,
|
|
|
|
|
unsigned int));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In flow.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void recompute_reg_usage PARAMS ((rtx, int));
|
|
|
|
|
extern int initialize_uninitialized_subregs PARAMS ((void));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void print_rtl_with_bb PARAMS ((FILE *, rtx));
|
|
|
|
|
extern void dump_flow_info PARAMS ((FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* In expmed.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void init_expmed PARAMS ((void));
|
|
|
|
|
extern void expand_inc PARAMS ((rtx, rtx));
|
|
|
|
|
extern void expand_dec PARAMS ((rtx, rtx));
|
|
|
|
|
extern rtx expand_mult_highpart PARAMS ((enum machine_mode, rtx,
|
1999-08-26 09:30:50 +00:00
|
|
|
|
unsigned HOST_WIDE_INT, rtx,
|
|
|
|
|
int, int));
|
|
|
|
|
|
|
|
|
|
/* In gcse.c */
|
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int gcse_main PARAMS ((rtx, FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* In global.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void mark_elimination PARAMS ((int, int));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int global_alloc PARAMS ((FILE *));
|
|
|
|
|
extern void dump_global_regs PARAMS ((FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
#ifdef HARD_CONST
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void retry_global_alloc PARAMS ((int, HARD_REG_SET));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void build_insn_chain PARAMS ((rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In regclass.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int reg_classes_intersect_p PARAMS ((enum reg_class, enum reg_class));
|
|
|
|
|
extern int reg_class_subset_p PARAMS ((enum reg_class, enum reg_class));
|
|
|
|
|
extern void globalize_reg PARAMS ((int));
|
|
|
|
|
extern void init_regs PARAMS ((void));
|
|
|
|
|
extern void init_reg_sets PARAMS ((void));
|
|
|
|
|
extern void regset_release_memory PARAMS ((void));
|
|
|
|
|
extern void regclass_init PARAMS ((void));
|
|
|
|
|
extern void regclass PARAMS ((rtx, int, FILE *));
|
|
|
|
|
extern void reg_scan PARAMS ((rtx, unsigned int, int));
|
|
|
|
|
extern void reg_scan_update PARAMS ((rtx, rtx, unsigned int));
|
|
|
|
|
extern void fix_register PARAMS ((const char *, int, int));
|
|
|
|
|
|
|
|
|
|
extern void delete_null_pointer_checks PARAMS ((rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In regmove.c */
|
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void regmove_optimize PARAMS ((rtx, int, FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void combine_stack_adjustments PARAMS ((void));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In reorg.c */
|
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void dbr_schedule PARAMS ((rtx, FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* In local-alloc.c */
|
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void dump_local_alloc PARAMS ((FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int local_alloc PARAMS ((void));
|
|
|
|
|
extern int function_invariant_p PARAMS ((rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In profile.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void init_branch_prob PARAMS ((const char *));
|
|
|
|
|
extern void branch_prob PARAMS ((void));
|
|
|
|
|
extern void end_branch_prob PARAMS ((void));
|
|
|
|
|
extern void output_func_start_profiler PARAMS ((void));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In reg-stack.c */
|
|
|
|
|
#ifdef BUFSIZ
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void reg_to_stack PARAMS ((rtx, FILE *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* In fold-const.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int add_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *));
|
|
|
|
|
extern int neg_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *));
|
|
|
|
|
extern int mul_double PARAMS ((unsigned HOST_WIDE_INT,
|
|
|
|
|
HOST_WIDE_INT,
|
|
|
|
|
unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *));
|
|
|
|
|
extern void lshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
HOST_WIDE_INT, unsigned int,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *, int));
|
|
|
|
|
extern void rshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
HOST_WIDE_INT, unsigned int,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *, int));
|
|
|
|
|
extern void lrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
HOST_WIDE_INT, unsigned int,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *));
|
|
|
|
|
extern void rrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
|
|
|
|
|
HOST_WIDE_INT, unsigned int,
|
|
|
|
|
unsigned HOST_WIDE_INT *,
|
|
|
|
|
HOST_WIDE_INT *));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In calls.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
enum libcall_type
|
|
|
|
|
{
|
|
|
|
|
LCT_NORMAL = 0,
|
|
|
|
|
LCT_CONST = 1,
|
|
|
|
|
LCT_PURE = 2,
|
|
|
|
|
LCT_CONST_MAKE_BLOCK = 3,
|
|
|
|
|
LCT_PURE_MAKE_BLOCK = 4,
|
|
|
|
|
LCT_NORETURN = 5,
|
|
|
|
|
LCT_THROW = 6,
|
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|
|
|
LCT_ALWAYS_RETURN = 7,
|
|
|
|
|
LCT_RETURNS_TWICE = 8
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
extern void emit_library_call PARAMS ((rtx, enum libcall_type,
|
|
|
|
|
enum machine_mode, int,
|
|
|
|
|
...));
|
|
|
|
|
extern rtx emit_library_call_value PARAMS ((rtx, rtx, enum libcall_type,
|
|
|
|
|
enum machine_mode, int,
|
|
|
|
|
...));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In unroll.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int set_dominates_use PARAMS ((int, int, int, rtx, rtx));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In varasm.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int in_data_section PARAMS ((void));
|
|
|
|
|
extern void init_varasm_once PARAMS ((void));
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In rtl.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void init_rtl PARAMS ((void));
|
|
|
|
|
extern void traverse_md_constants PARAMS ((int (*) (void **, void *),
|
|
|
|
|
void *));
|
|
|
|
|
struct md_constant { char *name, *value; };
|
|
|
|
|
|
|
|
|
|
#ifdef BUFSIZ
|
|
|
|
|
extern int read_skip_spaces PARAMS ((FILE *));
|
|
|
|
|
extern rtx read_rtx PARAMS ((FILE *));
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
extern const char *read_rtx_filename;
|
|
|
|
|
extern int read_rtx_lineno;
|
|
|
|
|
|
|
|
|
|
/* Redefine abort to report an internal error w/o coredump, and
|
|
|
|
|
reporting the location of the error in the source file. This logic
|
|
|
|
|
is duplicated in rtl.h and tree.h because every file that needs the
|
|
|
|
|
special abort includes one or both. toplev.h gets too few files,
|
|
|
|
|
system.h gets too many. */
|
|
|
|
|
|
|
|
|
|
extern void fancy_abort PARAMS ((const char *, int, const char *))
|
|
|
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
|
#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
|
|
|
|
/* In alias.c */
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern void clear_reg_alias_info PARAMS ((rtx));
|
|
|
|
|
extern rtx canon_rtx PARAMS ((rtx));
|
|
|
|
|
extern int true_dependence PARAMS ((rtx, enum machine_mode, rtx,
|
|
|
|
|
int (*)(rtx, int)));
|
|
|
|
|
extern rtx get_addr PARAMS ((rtx));
|
|
|
|
|
extern int canon_true_dependence PARAMS ((rtx, enum machine_mode, rtx,
|
|
|
|
|
rtx, int (*)(rtx, int)));
|
|
|
|
|
extern int read_dependence PARAMS ((rtx, rtx));
|
|
|
|
|
extern int anti_dependence PARAMS ((rtx, rtx));
|
|
|
|
|
extern int output_dependence PARAMS ((rtx, rtx));
|
|
|
|
|
extern void mark_constant_function PARAMS ((void));
|
|
|
|
|
extern void init_alias_once PARAMS ((void));
|
|
|
|
|
extern void init_alias_analysis PARAMS ((void));
|
|
|
|
|
extern void end_alias_analysis PARAMS ((void));
|
|
|
|
|
extern rtx addr_side_effect_eval PARAMS ((rtx, int, int));
|
|
|
|
|
|
|
|
|
|
/* In sibcall.c */
|
|
|
|
|
typedef enum {
|
|
|
|
|
sibcall_use_normal = 1,
|
|
|
|
|
sibcall_use_tail_recursion,
|
|
|
|
|
sibcall_use_sibcall
|
|
|
|
|
} sibcall_use_t;
|
|
|
|
|
|
|
|
|
|
extern void optimize_sibling_and_tail_recursive_calls PARAMS ((void));
|
|
|
|
|
extern void replace_call_placeholder PARAMS ((rtx, sibcall_use_t));
|
1999-10-16 06:09:09 +00:00
|
|
|
|
|
|
|
|
|
#ifdef STACK_REGS
|
2002-02-01 18:16:02 +00:00
|
|
|
|
extern int stack_regs_mentioned PARAMS ((rtx insn));
|
1999-10-16 06:09:09 +00:00
|
|
|
|
#endif
|
1999-08-26 09:30:50 +00:00
|
|
|
|
|
2002-02-01 18:16:02 +00:00
|
|
|
|
/* In toplev.c */
|
|
|
|
|
extern rtx stack_limit_rtx;
|
|
|
|
|
|
|
|
|
|
/* In regrename.c */
|
|
|
|
|
extern void regrename_optimize PARAMS ((void));
|
|
|
|
|
extern void copyprop_hardreg_forward PARAMS ((void));
|
|
|
|
|
|
|
|
|
|
/* In ifcvt.c */
|
|
|
|
|
extern void if_convert PARAMS ((int));
|
|
|
|
|
|
|
|
|
|
/* In predict.c */
|
|
|
|
|
extern void invert_br_probabilities PARAMS ((rtx));
|
|
|
|
|
extern bool expensive_function_p PARAMS ((int));
|
|
|
|
|
#endif /* ! GCC_RTL_H */
|