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8784fdcd69
gcc: * cpphash.h: Remove conditional #define of __extension__. * rtl.h: Add __extension__ to RTL_CHECK1, RTL_CHECK2, RTL_CHECKC1, RTL_CHECKC2, and RTVEC_ELT macros (ENABLE_RTL_CHECKING only). * tree.h: Add __extension__ to TREE_CHECK, TREE_CLASS_CHECK, CST_OR_CONSTRUCTOR_CHECK, and EXPR_CHECK macros (ENABLE_TREE_CHECKING only). * varray.h: Add __extension__ to VARRAY_CHECK macro (ENABLE_CHECKING only). include: * ansidecl.h: #define __extension__ to nothing if GCC_VERSION < 2008. From-SVN: r33733
1848 lines
72 KiB
C
1848 lines
72 KiB
C
/* Register Transfer Language (RTL) definitions for GNU C-Compiler
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Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _RTL_H
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#define _RTL_H
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struct function;
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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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#ifndef TREE_CODE
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union tree_node;
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#endif
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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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#define NUM_RTX_CODE ((int)LAST_AND_UNUSED_RTX_CODE)
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/* The cast here, saves many elsewhere. */
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extern const int rtx_length[];
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#define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)])
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extern const char * const rtx_name[];
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#define GET_RTX_NAME(CODE) (rtx_name[(int) (CODE)])
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extern const char * const rtx_format[];
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#define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)])
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extern const char rtx_class[];
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#define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)])
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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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unsigned min_after_vec: 1; /* minimum address target label is after the ADDR_DIFF_VEC. */
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unsigned max_after_vec: 1; /* maximum address target label is after the ADDR_DIFF_VEC. */
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unsigned min_after_base: 1; /* minimum address target label is after BASE. */
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unsigned max_after_base: 1; /* maximum address target label is after BASE. */
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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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/* 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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unsigned int rtuint;
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const char *rtstr;
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struct rtx_def *rtx;
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struct rtvec_def *rtvec;
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enum machine_mode rttype;
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addr_diff_vec_flags rt_addr_diff_vec_flags;
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struct cselib_val_struct *rt_cselib;
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struct bitmap_head_def *rtbit;
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union tree_node *rttree;
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struct basic_block_def *bb;
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} rtunion;
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/* RTL expression ("rtx"). */
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typedef struct rtx_def
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{
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/* The kind of expression this is. */
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ENUM_BITFIELD(rtx_code) code: 16;
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/* The kind of value the expression has. */
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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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LINK_COST_ZERO in an INSN_LIST. */
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unsigned int jump : 1;
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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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unsigned int call : 1;
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/* 1 in a MEM or REG if value of this expression will never change
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during the current function, even though it is not
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manifestly constant.
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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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/* 1 in a MEM referring to a field of an aggregate.
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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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1 in a SUBREG expression if was generated from a variable with a
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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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cleared before used. */
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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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In a REG, this is not needed for that purpose, and used instead
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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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of the current function. */
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unsigned integrated : 1;
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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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restoring registers in the prologue and epilogue.
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1 in a MEM if the MEM refers to a scalar, rather than a member of
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an aggregate. */
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unsigned frame_related : 1;
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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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} *rtx;
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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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#define GET_CODE(RTX) ((RTX)->code)
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#define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE))
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#define GET_MODE(RTX) ((RTX)->mode)
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#define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE))
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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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#define RTX_FRAME_RELATED_P(RTX) ((RTX)->frame_related)
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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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typedef struct rtvec_def{
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int num_elem; /* number of elements */
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struct rtx_def *elem[1];
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} *rtvec;
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#define NULL_RTVEC (rtvec) 0
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#define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem)
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#define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM))
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/* 1 if X is a REG. */
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#define REG_P(X) (GET_CODE (X) == REG)
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/* 1 if X is a constant value that is an integer. */
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#define CONSTANT_P(X) \
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(GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
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|| GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE \
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|| GET_CODE (X) == CONST || GET_CODE (X) == HIGH \
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|| GET_CODE (X) == CONSTANT_P_RTX)
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/* General accessor macros for accessing the fields of an rtx. */
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#if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007)
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/* The bit with a star outside the statement expr and an & inside is
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so that N can be evaluated only once. */
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#define RTL_CHECK1(RTX, N, C1) __extension__ \
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(*({ rtx _rtx = (RTX); int _n = (N); \
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enum rtx_code _code = GET_CODE (_rtx); \
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if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
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rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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if (GET_RTX_FORMAT(_code)[_n] != C1) \
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rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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&_rtx->fld[_n]; }))
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#define RTL_CHECK2(RTX, N, C1, C2) __extension__ \
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(*({ rtx _rtx = (RTX); int _n = (N); \
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enum rtx_code _code = GET_CODE (_rtx); \
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if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
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rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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if (GET_RTX_FORMAT(_code)[_n] != C1 \
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&& GET_RTX_FORMAT(_code)[_n] != C2) \
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rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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&_rtx->fld[_n]; }))
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#define RTL_CHECKC1(RTX, N, C) __extension__ \
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(*({ rtx _rtx = (RTX); int _n = (N); \
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if (GET_CODE (_rtx) != C) \
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rtl_check_failed_code1 (_rtx, C, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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&_rtx->fld[_n]; }))
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#define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \
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(*({ rtx _rtx = (RTX); int _n = (N); \
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enum rtx_code _code = GET_CODE (_rtx); \
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if (_code != C1 && _code != C2) \
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rtl_check_failed_code2 (_rtx, C1, C2, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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&_rtx->fld[_n]; }))
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#define RTVEC_ELT(RTVEC, I) __extension__ \
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(*({ rtvec _rtvec = (RTVEC); int _i = (I); \
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if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \
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rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \
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__PRETTY_FUNCTION__); \
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&_rtvec->elem[_i]; }))
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extern void rtl_check_failed_bounds PARAMS ((rtx, int,
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const char *, int, const char *))
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ATTRIBUTE_NORETURN;
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extern void rtl_check_failed_type1 PARAMS ((rtx, int, int,
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const char *, int, const char *))
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ATTRIBUTE_NORETURN;
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extern void rtl_check_failed_type2 PARAMS ((rtx, int, int, int,
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const char *, int, const char *))
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ATTRIBUTE_NORETURN;
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extern void rtl_check_failed_code1 PARAMS ((rtx, enum rtx_code,
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const char *, int, const char *))
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ATTRIBUTE_NORETURN;
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extern void rtl_check_failed_code2 PARAMS ((rtx, enum rtx_code, enum rtx_code,
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const char *, int, const char *))
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ATTRIBUTE_NORETURN;
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extern void rtvec_check_failed_bounds PARAMS ((rtvec, int,
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const char *, int, const char *))
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ATTRIBUTE_NORETURN;
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#else /* not ENABLE_RTL_CHECKING */
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#define RTL_CHECK1(RTX, N, C1) ((RTX)->fld[N])
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#define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->fld[N])
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#define RTL_CHECKC1(RTX, N, C) ((RTX)->fld[N])
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#define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->fld[N])
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#define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I])
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#endif
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#define XWINT(RTX, N) (RTL_CHECK1(RTX, N, 'w').rtwint)
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#define XINT(RTX, N) (RTL_CHECK2(RTX, N, 'i', 'n').rtint)
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#define XSTR(RTX, N) (RTL_CHECK2(RTX, N, 's', 'S').rtstr)
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#define XEXP(RTX, N) (RTL_CHECK2(RTX, N, 'e', 'u').rtx)
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#define XVEC(RTX, N) (RTL_CHECK2(RTX, N, 'E', 'V').rtvec)
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#define XMODE(RTX, N) (RTL_CHECK1(RTX, N, 'M').rttype)
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#define XBITMAP(RTX, N) (RTL_CHECK1(RTX, N, 'b').rtbit)
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#define XTREE(RTX, N) (RTL_CHECK1(RTX, N, 't').rttree)
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#define XBBDEF(RTX, N) (RTL_CHECK1(RTX, N, 'B').bb)
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#define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M)
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#define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N))
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/* These are like XWINT, etc. except that they expect a '0' field instead
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of the normal type code. */
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#define X0WINT(RTX, N) (RTL_CHECK1(RTX, N, '0').rtwint)
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#define X0INT(RTX, N) (RTL_CHECK1(RTX, N, '0').rtint)
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#define X0STR(RTX, N) (RTL_CHECK1(RTX, N, '0').rtstr)
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#define X0EXP(RTX, N) (RTL_CHECK1(RTX, N, '0').rtx)
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#define X0VEC(RTX, N) (RTL_CHECK1(RTX, N, '0').rtvec)
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#define X0MODE(RTX, N) (RTL_CHECK1(RTX, N, '0').rttype)
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#define X0BITMAP(RTX, N) (RTL_CHECK1(RTX, N, '0').rtbit)
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#define X0TREE(RTX, N) (RTL_CHECK1(RTX, N, '0').rttree)
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#define X0BBDEF(RTX, N) (RTL_CHECK1(RTX, N, '0').bb)
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#define X0ADVFLAGS(RTX, N) (RTL_CHECK1(RTX, N, '0').rt_addr_diff_vec_flags)
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#define X0CSELIB(RTX, N) (RTL_CHECK1(RTX, N, '0').rt_cselib)
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#define XCWINT(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtwint)
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#define XCINT(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtint)
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#define XCUINT(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtuint)
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#define XCSTR(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtstr)
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#define XCEXP(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtx)
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#define XCVEC(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtvec)
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#define XCMODE(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rttype)
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#define XCBITMAP(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rtbit)
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#define XCTREE(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rttree)
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#define XCBBDEF(RTX, N, C) (RTL_CHECKC1(RTX, N, C).bb)
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#define XCADVFLAGS(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rt_addr_diff_vec_flags)
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#define XCCSELIB(RTX, N, C) (RTL_CHECKC1(RTX, N, C).rt_cselib)
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#define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M)
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#define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C))
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#define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2(RTX, N, C1, C2).rtx)
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/* ACCESS MACROS for particular fields of insns. */
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/* Determines whether X is an insn. */
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#define INSN_P(X) (GET_RTX_CLASS (GET_CODE(X)) == 'i')
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/* Holds a unique number for each insn.
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These are not necessarily sequentially increasing. */
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#define INSN_UID(INSN) XINT(INSN, 0)
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/* Chain insns together in sequence. */
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#define PREV_INSN(INSN) XEXP(INSN, 1)
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#define NEXT_INSN(INSN) XEXP(INSN, 2)
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||
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/* The body of an insn. */
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#define PATTERN(INSN) XEXP(INSN, 3)
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/* Code number of instruction, from when it was recognized.
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-1 means this instruction has not been recognized yet. */
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#define INSN_CODE(INSN) XINT(INSN, 4)
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/* Set up in flow.c; empty before then.
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||
Holds a chain of INSN_LIST rtx's whose first operands point at
|
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previous insns with direct data-flow connections to this one.
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That means that those insns set variables whose next use is in this insn.
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They are always in the same basic block as this insn. */
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#define LOG_LINKS(INSN) XEXP(INSN, 5)
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/* 1 if insn has been deleted. */
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#define INSN_DELETED_P(INSN) ((INSN)->volatil)
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/* 1 if insn is a call to a const function. */
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#define CONST_CALL_P(INSN) ((INSN)->unchanging)
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/* 1 if insn (assumed to be a CALL_INSN) is a sibling call. */
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#define SIBLING_CALL_P(INSN) ((INSN)->jump)
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/* 1 if insn is a branch that should not unconditionally execute its
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delay slots, i.e., it is an annulled branch. */
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#define INSN_ANNULLED_BRANCH_P(INSN) ((INSN)->unchanging)
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||
/* 1 if insn is in a delay slot and is from the target of the branch. If
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||
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)
|
||
|
||
#define ADDR_DIFF_VEC_FLAGS(RTX) X0ADVFLAGS(RTX, 4)
|
||
|
||
#define CSELIB_VAL_PTR(RTX) X0CSELIB(RTX, 0)
|
||
|
||
/* Holds a list of notes on what this insn does to various REGs.
|
||
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.
|
||
The mode field of the EXPR_LIST contains not a real machine mode
|
||
but a value from enum reg_note. */
|
||
|
||
#define REG_NOTES(INSN) XEXP(INSN, 6)
|
||
|
||
/* Don't forget to change reg_note_name in rtl.c. */
|
||
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. */
|
||
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. */
|
||
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. */
|
||
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 when the flag
|
||
-fbranch-probabilities is given. 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,
|
||
|
||
/* Attached to JUMP_INSNs only, it holds the branch prediction flags
|
||
computed by get_jump_flags() after dbr scheduling is complete. */
|
||
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,
|
||
|
||
/* Indicates that a call is actually a call to rethrow, and specifies the
|
||
rethrow symbol for the region the rethrow is targetting. This provides
|
||
a way to generate the non standard flow edges required for a rethrow. */
|
||
REG_EH_RETHROW,
|
||
|
||
/* Used by haifa-sched to save NOTE_INSN notes across scheduling. */
|
||
REG_SAVE_NOTE
|
||
};
|
||
|
||
/* The base value for branch probability notes. */
|
||
#define REG_BR_PROB_BASE 10000
|
||
|
||
/* 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))
|
||
#define PUT_REG_NOTE_KIND(LINK,KIND) PUT_MODE(LINK, (enum machine_mode) (KIND))
|
||
|
||
/* Names for REG_NOTE's in EXPR_LIST insn's. */
|
||
|
||
extern const char * const reg_note_name[];
|
||
#define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)])
|
||
|
||
/* 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. */
|
||
#define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 7)
|
||
|
||
/* 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. */
|
||
#define CODE_LABEL_NUMBER(INSN) XINT(INSN, 3)
|
||
|
||
#define LINE_NUMBER NOTE
|
||
|
||
/* 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
|
||
information as a rtx in the field. */
|
||
|
||
#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)
|
||
|
||
/* In a NOTE that is a line number, this is the line number.
|
||
Other kinds of NOTEs are identified by negative numbers here. */
|
||
#define NOTE_LINE_NUMBER(INSN) XCINT(INSN, 4, NOTE)
|
||
|
||
/* 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. */
|
||
|
||
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,
|
||
|
||
/* 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 kind of note is generated just after each call to `setjmp',
|
||
and similar functions that can return twice. */
|
||
NOTE_INSN_SETJMP,
|
||
|
||
/* 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
|
||
};
|
||
|
||
/* Names for NOTE insn's other than line numbers. */
|
||
|
||
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) - NOTE_INSN_BIAS])
|
||
|
||
/* The name of a label, in case it corresponds to an explicit label
|
||
in the input source code. */
|
||
#define LABEL_NAME(RTX) XCSTR(RTX, 4, CODE_LABEL)
|
||
|
||
/* In jump.c, each label contains a count of the number
|
||
of LABEL_REFs that point at it, so unused labels can be deleted. */
|
||
#define LABEL_NUSES(RTX) XCINT(RTX, 5, CODE_LABEL)
|
||
|
||
/* Associate a name with a CODE_LABEL. */
|
||
#define LABEL_ALTERNATE_NAME(RTX) XCSTR(RTX, 7, CODE_LABEL)
|
||
|
||
/* The original regno this ADDRESSOF was built for. */
|
||
#define ADDRESSOF_REGNO(RTX) XCUINT(RTX, 1, ADDRESSOF)
|
||
|
||
/* The variable in the register we took the address of. */
|
||
#define ADDRESSOF_DECL(RTX) XCTREE(RTX, 2, ADDRESSOF)
|
||
|
||
/* 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. */
|
||
#define JUMP_LABEL(INSN) XCEXP(INSN, 7, JUMP_INSN)
|
||
|
||
/* 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.
|
||
The chain eventually winds up at the CODE_LABEL; it is circular. */
|
||
#define LABEL_REFS(LABEL) XCEXP(LABEL, 6, CODE_LABEL)
|
||
|
||
/* 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. */
|
||
|
||
#define LABEL_NEXTREF(REF) XCEXP(REF, 1, LABEL_REF)
|
||
|
||
/* Once basic blocks are found in flow.c,
|
||
Each LABEL_REF points to its containing instruction with this field. */
|
||
|
||
#define CONTAINING_INSN(RTX) XCEXP(RTX, 2, LABEL_REF)
|
||
|
||
/* For a REG rtx, REGNO extracts the register number. */
|
||
|
||
#define REGNO(RTX) XCUINT(RTX, 0, REG)
|
||
|
||
/* 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)
|
||
|
||
/* For a CONST_INT rtx, INTVAL extracts the integer. */
|
||
|
||
#define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT)
|
||
|
||
/* For a SUBREG rtx, SUBREG_REG extracts the value we want a subreg of.
|
||
SUBREG_WORD extracts the word-number. */
|
||
|
||
#define SUBREG_REG(RTX) XCEXP(RTX, 0, SUBREG)
|
||
#define SUBREG_WORD(RTX) XCUINT(RTX, 1, SUBREG)
|
||
|
||
/* 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
|
||
extension.
|
||
|
||
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. */
|
||
|
||
#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(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 it's a volatile reference.
|
||
Also in an ASM_OPERANDS rtx. */
|
||
#define MEM_VOLATILE_P(RTX) ((RTX)->volatil)
|
||
|
||
/* For a MEM rtx, 1 if it refers to a field of an aggregate. If zero,
|
||
RTX may or may not refer to a field of an aggregate. */
|
||
#define MEM_IN_STRUCT_P(RTX) ((RTX)->in_struct)
|
||
|
||
/* For a MEM rtx, 1 if it refers to a scalar. If zero, RTX may or may
|
||
not refer to a scalar.*/
|
||
#define MEM_SCALAR_P(RTX) ((RTX)->frame_related)
|
||
|
||
/* 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), \
|
||
MEM_ALIAS_SET (LHS) = MEM_ALIAS_SET (RHS), \
|
||
RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS))
|
||
|
||
/* 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. */
|
||
#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)
|
||
|
||
/* 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. */
|
||
#define MEM_ALIAS_SET(RTX) XCINT(RTX, 1, MEM)
|
||
|
||
/* 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. */
|
||
#define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER)
|
||
#define SET_SRC(RTX) XCEXP(RTX, 1, SET)
|
||
|
||
/* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */
|
||
#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)
|
||
|
||
/* 1 in a SYMBOL_REF if it addresses this function's constants pool. */
|
||
#define CONSTANT_POOL_ADDRESS_P(RTX) ((RTX)->unchanging)
|
||
|
||
/* Flag in a SYMBOL_REF for machine-specific purposes. */
|
||
#define SYMBOL_REF_FLAG(RTX) ((RTX)->volatil)
|
||
|
||
/* 1 in a SYMBOL_REF if it represents a symbol which might have to change
|
||
if its inlined or unrolled. */
|
||
#define SYMBOL_REF_NEED_ADJUST(RTX) ((RTX)->in_struct)
|
||
|
||
/* 1 means a SYMBOL_REF has been the library function in emit_library_call. */
|
||
#define SYMBOL_REF_USED(RTX) ((RTX)->used)
|
||
|
||
/* 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))
|
||
#define FIND_REG_INC_NOTE(insn, reg) (find_reg_note ((insn), REG_INC, (reg)))
|
||
#else
|
||
#define FIND_REG_INC_NOTE(insn, reg) 0
|
||
#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
|
||
|
||
#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
|
||
|
||
|
||
/* 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
|
||
|
||
|
||
/* Accessors for RANGE_INFO. */
|
||
/* For RANGE_{START,END} notes return the RANGE_START note. */
|
||
#define RANGE_INFO_NOTE_START(INSN) XCEXP (INSN, 0, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes return the RANGE_START note. */
|
||
#define RANGE_INFO_NOTE_END(INSN) XCEXP (INSN, 1, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, return the vector containing the registers used
|
||
in the range. */
|
||
#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)
|
||
|
||
/* For RANGE_{START,END} notes, the number of calls within the range. */
|
||
#define RANGE_INFO_NCALLS(INSN) XCINT (INSN, 3, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, the number of insns within the range. */
|
||
#define RANGE_INFO_NINSNS(INSN) XCINT (INSN, 4, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, a unique # to identify this range. */
|
||
#define RANGE_INFO_UNIQUE(INSN) XCINT (INSN, 5, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, the basic block # the range starts with. */
|
||
#define RANGE_INFO_BB_START(INSN) XCINT (INSN, 6, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, the basic block # the range ends with. */
|
||
#define RANGE_INFO_BB_END(INSN) XCINT (INSN, 7, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, the loop depth the range is in. */
|
||
#define RANGE_INFO_LOOP_DEPTH(INSN) XCINT (INSN, 8, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, the bitmap of live registers at the start
|
||
of the range. */
|
||
#define RANGE_INFO_LIVE_START(INSN) XCBITMAP (INSN, 9, RANGE_INFO)
|
||
|
||
/* For RANGE_{START,END} notes, the bitmap of live registers at the end
|
||
of the range. */
|
||
#define RANGE_INFO_LIVE_END(INSN) XCBITMAP (INSN, 10, RANGE_INFO)
|
||
|
||
/* For RANGE_START notes, the marker # of the start of the range. */
|
||
#define RANGE_INFO_MARKER_START(INSN) XCINT (INSN, 11, RANGE_INFO)
|
||
|
||
/* For RANGE_START notes, the marker # of the end of the range. */
|
||
#define RANGE_INFO_MARKER_END(INSN) XCINT (INSN, 12, RANGE_INFO)
|
||
|
||
/* Original pseudo register # for a live range note. */
|
||
#define RANGE_REG_PSEUDO(INSN,N) XCINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 0, REG)
|
||
|
||
/* Pseudo register # original register is copied into or -1. */
|
||
#define RANGE_REG_COPY(INSN,N) XCINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 1, REG)
|
||
|
||
/* How many times a register in a live range note was referenced. */
|
||
#define RANGE_REG_REFS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 2)
|
||
|
||
/* How many times a register in a live range note was set. */
|
||
#define RANGE_REG_SETS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 3)
|
||
|
||
/* How many times a register in a live range note died. */
|
||
#define RANGE_REG_DEATHS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 4)
|
||
|
||
/* Whether the original value is needed to be copied into the range register at
|
||
the start of the range. */
|
||
#define RANGE_REG_COPY_FLAGS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 5)
|
||
|
||
/* # of insns the register copy is live over. */
|
||
#define RANGE_REG_LIVE_LENGTH(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 6)
|
||
|
||
/* # of calls the register copy is live over. */
|
||
#define RANGE_REG_N_CALLS(INSN,N) XINT (XCVECEXP (INSN, 2, N, RANGE_INFO), 7)
|
||
|
||
/* DECL_NODE pointer of the declaration if the register is a user defined
|
||
variable. */
|
||
#define RANGE_REG_SYMBOL_NODE(INSN,N) XTREE (XCVECEXP (INSN, 2, N, RANGE_INFO), 8)
|
||
|
||
/* BLOCK_NODE pointer to the block the variable is declared in if the
|
||
register is a user defined variable. */
|
||
#define RANGE_REG_BLOCK_NODE(INSN,N) XTREE (XCVECEXP (INSN, 2, N, RANGE_INFO), 9)
|
||
|
||
/* 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))
|
||
|
||
/* 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)
|
||
|
||
/* 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;
|
||
|
||
/* Generally useful functions. */
|
||
|
||
/* The following functions accept a wide integer argument. Rather than
|
||
having to cast on every function call, we use a macro instead, that is
|
||
defined here and in tree.h. */
|
||
|
||
#ifndef exact_log2
|
||
#define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N))
|
||
#define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N))
|
||
#endif
|
||
extern int exact_log2_wide PARAMS ((unsigned HOST_WIDE_INT));
|
||
extern int floor_log2_wide PARAMS ((unsigned HOST_WIDE_INT));
|
||
|
||
/* In expmed.c */
|
||
extern int ceil_log2 PARAMS ((unsigned HOST_WIDE_INT));
|
||
|
||
#define plus_constant(X,C) plus_constant_wide (X, (HOST_WIDE_INT) (C))
|
||
|
||
#define plus_constant_for_output(X,C) \
|
||
plus_constant_for_output_wide (X, (HOST_WIDE_INT) (C))
|
||
|
||
/* In explow.c */
|
||
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));
|
||
|
||
extern rtx gen_rtx PARAMS ((enum rtx_code,
|
||
enum machine_mode, ...));
|
||
extern rtvec gen_rtvec PARAMS ((int, ...));
|
||
|
||
extern char *oballoc PARAMS ((int));
|
||
extern char *permalloc PARAMS ((int));
|
||
extern rtx rtx_alloc PARAMS ((RTX_CODE));
|
||
extern rtvec rtvec_alloc PARAMS ((int));
|
||
extern rtx copy_insn_1 PARAMS ((rtx));
|
||
extern rtx copy_insn PARAMS ((rtx));
|
||
extern rtx copy_rtx PARAMS ((rtx));
|
||
extern rtx copy_rtx_if_shared PARAMS ((rtx));
|
||
extern rtx copy_most_rtx PARAMS ((rtx, rtx));
|
||
extern rtx shallow_copy_rtx PARAMS ((rtx));
|
||
extern int rtx_equal_p PARAMS ((rtx, rtx));
|
||
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 rtx gen_lowpart_common PARAMS ((enum machine_mode, rtx));
|
||
extern rtx gen_lowpart PARAMS ((enum machine_mode, rtx));
|
||
extern rtx gen_lowpart_if_possible PARAMS ((enum machine_mode, rtx));
|
||
extern rtx gen_highpart PARAMS ((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 operand_subword_force PARAMS ((rtx, unsigned int,
|
||
enum machine_mode));
|
||
extern int subreg_lowpart_p PARAMS ((rtx));
|
||
extern rtx make_safe_from PARAMS ((rtx, rtx));
|
||
extern rtx convert_memory_address PARAMS ((enum machine_mode, rtx));
|
||
extern rtx 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));
|
||
extern rtx immed_double_const PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT, enum machine_mode));
|
||
extern rtx force_const_mem PARAMS ((enum machine_mode, rtx));
|
||
extern rtx force_reg PARAMS ((enum machine_mode, rtx));
|
||
extern rtx get_pool_constant PARAMS ((rtx));
|
||
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));
|
||
extern rtx assign_stack_local PARAMS ((enum machine_mode,
|
||
HOST_WIDE_INT, int));
|
||
extern rtx assign_stack_temp PARAMS ((enum machine_mode,
|
||
HOST_WIDE_INT, int));
|
||
extern rtx assign_temp PARAMS ((union tree_node *,
|
||
int, int, int));
|
||
extern rtx protect_from_queue PARAMS ((rtx, int));
|
||
extern void emit_queue PARAMS ((void));
|
||
extern rtx emit_move_insn PARAMS ((rtx, rtx));
|
||
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));
|
||
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 rtx find_equiv_reg PARAMS ((rtx, rtx, enum reg_class, int, short *, int, enum machine_mode));
|
||
extern rtx squeeze_notes PARAMS ((rtx, rtx));
|
||
extern rtx delete_insn 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));
|
||
extern rtx adj_offsettable_operand PARAMS ((rtx, int));
|
||
extern rtx try_split PARAMS ((rtx, rtx, int));
|
||
extern rtx split_insns PARAMS ((rtx, rtx));
|
||
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_rtx PARAMS ((rtx));
|
||
extern rtx gen_move_insn PARAMS ((rtx, rtx));
|
||
extern rtx gen_jump PARAMS ((rtx));
|
||
extern rtx gen_beq PARAMS ((rtx));
|
||
extern rtx gen_bge PARAMS ((rtx));
|
||
extern rtx gen_ble PARAMS ((rtx));
|
||
extern rtx gen_mem_addressof PARAMS ((rtx, union tree_node *));
|
||
extern rtx eliminate_constant_term PARAMS ((rtx, rtx *));
|
||
extern rtx expand_complex_abs PARAMS ((enum machine_mode, rtx, rtx,
|
||
int));
|
||
extern enum machine_mode choose_hard_reg_mode PARAMS ((unsigned int,
|
||
unsigned int));
|
||
extern void set_unique_reg_note PARAMS ((rtx, enum reg_note, rtx));
|
||
|
||
/* Functions in rtlanal.c */
|
||
|
||
extern int rtx_unstable_p PARAMS ((rtx));
|
||
extern int rtx_varies_p PARAMS ((rtx));
|
||
extern int rtx_addr_varies_p PARAMS ((rtx));
|
||
extern HOST_WIDE_INT get_integer_term PARAMS ((rtx));
|
||
extern rtx get_related_value PARAMS ((rtx));
|
||
extern int reg_mentioned_p PARAMS ((rtx, rtx));
|
||
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 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 reg_set_p PARAMS ((rtx, rtx));
|
||
extern rtx single_set PARAMS ((rtx));
|
||
extern int multiple_sets 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 void note_stores PARAMS ((rtx,
|
||
void (*) (rtx, 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 int find_reg_fusage PARAMS ((rtx, enum rtx_code, rtx));
|
||
extern int find_regno_fusage PARAMS ((rtx, enum rtx_code,
|
||
unsigned int));
|
||
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 void remove_node_from_expr_list PARAMS ((rtx, rtx *));
|
||
extern int insns_safe_to_move_p PARAMS ((rtx, rtx, rtx *));
|
||
|
||
/* flow.c */
|
||
|
||
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));
|
||
void clear_log_links PARAMS ((rtx));
|
||
|
||
/* regclass.c */
|
||
|
||
/* 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;
|
||
|
||
/* Free up register info memory. */
|
||
extern void free_reg_info PARAMS ((void));
|
||
|
||
/* recog.c */
|
||
extern int asm_noperands PARAMS ((rtx));
|
||
extern const char *decode_asm_operands PARAMS ((rtx, rtx *, rtx **,
|
||
const char **,
|
||
enum machine_mode *));
|
||
|
||
extern enum reg_class reg_preferred_class PARAMS ((int));
|
||
extern enum reg_class reg_alternate_class PARAMS ((int));
|
||
|
||
extern rtx get_first_nonparm_insn PARAMS ((void));
|
||
|
||
extern void split_all_insns PARAMS ((int));
|
||
|
||
#define MAX_SAVED_CONST_INT 64
|
||
extern rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1];
|
||
|
||
#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])
|
||
extern rtx const_true_rtx;
|
||
|
||
extern rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE];
|
||
|
||
/* Returns a constant 0 rtx in mode MODE. Integer modes are treated the
|
||
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)])
|
||
|
||
/* 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
|
||
{
|
||
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])
|
||
|
||
/* 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. */
|
||
#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])
|
||
|
||
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;
|
||
extern rtx return_address_pointer_rtx;
|
||
|
||
/* 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. */
|
||
|
||
extern rtx gen_rtx_CONST_DOUBLE PARAMS ((enum machine_mode, rtx,
|
||
HOST_WIDE_INT, HOST_WIDE_INT));
|
||
extern rtx gen_rtx_CONST_INT PARAMS ((enum machine_mode, HOST_WIDE_INT));
|
||
extern rtx gen_rtx_REG PARAMS ((enum machine_mode, int));
|
||
extern rtx gen_rtx_MEM PARAMS ((enum machine_mode, rtx));
|
||
|
||
/* 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))
|
||
|
||
/* 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. */
|
||
|
||
#define virtual_incoming_args_rtx (global_rtl[GR_VIRTUAL_INCOMING_ARGS])
|
||
|
||
#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. */
|
||
|
||
#define virtual_stack_vars_rtx (global_rtl[GR_VIRTUAL_STACK_ARGS])
|
||
|
||
#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. */
|
||
|
||
#define virtual_stack_dynamic_rtx (global_rtl[GR_VIRTUAL_STACK_DYNAMIC])
|
||
|
||
#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). */
|
||
|
||
#define virtual_outgoing_args_rtx (global_rtl[GR_VIRTUAL_OUTGOING_ARGS])
|
||
|
||
#define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3)
|
||
|
||
/* 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
|
||
frame pointer nor stack pointer are necessarily fixed relative to
|
||
the CFA until after reload. */
|
||
|
||
#define virtual_cfa_rtx (global_rtl[GR_VIRTUAL_CFA])
|
||
|
||
#define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4)
|
||
|
||
#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4)
|
||
|
||
extern rtx find_next_ref PARAMS ((rtx, rtx));
|
||
extern rtx *find_single_use PARAMS ((rtx, rtx, rtx *));
|
||
|
||
extern rtx output_constant_def PARAMS ((union tree_node *));
|
||
extern rtx immed_real_const PARAMS ((union tree_node *));
|
||
extern union tree_node *make_tree PARAMS ((union tree_node *, rtx));
|
||
|
||
/* Define a default value for STORE_FLAG_VALUE. */
|
||
|
||
#ifndef STORE_FLAG_VALUE
|
||
#define STORE_FLAG_VALUE 1
|
||
#endif
|
||
|
||
/* Nonzero after the second flow pass has completed.
|
||
Set to 1 or 0 by toplev.c */
|
||
extern int flow2_completed;
|
||
|
||
/* Nonzero after end of reload pass.
|
||
Set to 1 or 0 by reload1.c. */
|
||
|
||
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;
|
||
|
||
/* Set to nonzero before life analysis to indicate that it is unsafe to
|
||
generate any new pseudo registers. */
|
||
extern int no_new_pseudos;
|
||
|
||
/* 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. */
|
||
|
||
extern int rtx_to_tree_code PARAMS ((enum rtx_code));
|
||
|
||
/* In tree.c */
|
||
extern void obfree PARAMS ((char *));
|
||
struct obstack;
|
||
extern void gcc_obstack_init PARAMS ((struct obstack *));
|
||
extern void pop_obstacks PARAMS ((void));
|
||
extern void push_obstacks PARAMS ((struct obstack *,
|
||
struct obstack *));
|
||
/* In cse.c */
|
||
struct cse_basic_block_data;
|
||
extern int rtx_cost PARAMS ((rtx, enum rtx_code));
|
||
extern int address_cost PARAMS ((rtx, enum machine_mode));
|
||
extern void delete_trivially_dead_insns PARAMS ((rtx, int));
|
||
#ifdef BUFSIZ
|
||
extern int cse_main PARAMS ((rtx, int, int, FILE *));
|
||
#endif
|
||
extern void cse_end_of_basic_block PARAMS ((rtx,
|
||
struct cse_basic_block_data *,
|
||
int, int, int));
|
||
|
||
/* In jump.c */
|
||
extern int comparison_dominates_p PARAMS ((enum rtx_code, enum rtx_code));
|
||
extern int condjump_p PARAMS ((rtx));
|
||
extern rtx condjump_label PARAMS ((rtx));
|
||
extern int simplejump_p PARAMS ((rtx));
|
||
extern int returnjump_p PARAMS ((rtx));
|
||
extern int onlyjump_p PARAMS ((rtx));
|
||
extern int sets_cc0_p PARAMS ((rtx));
|
||
extern int invert_jump_1 PARAMS ((rtx, rtx));
|
||
extern int invert_jump PARAMS ((rtx, rtx));
|
||
extern int rtx_renumbered_equal_p PARAMS ((rtx, rtx));
|
||
extern int true_regnum PARAMS ((rtx));
|
||
extern int redirect_jump_1 PARAMS ((rtx, rtx));
|
||
extern int redirect_jump PARAMS ((rtx, rtx));
|
||
extern void jump_optimize PARAMS ((rtx, int, int, int));
|
||
extern void jump_optimize_minimal PARAMS ((rtx));
|
||
extern void rebuild_jump_labels PARAMS ((rtx));
|
||
extern void thread_jumps PARAMS ((rtx, int, int));
|
||
extern int redirect_exp PARAMS ((rtx *, rtx, rtx, rtx));
|
||
extern int rtx_equal_for_thread_p PARAMS ((rtx, rtx, rtx));
|
||
extern int invert_exp PARAMS ((rtx, rtx));
|
||
extern int can_reverse_comparison_p PARAMS ((rtx, rtx));
|
||
extern void delete_for_peephole PARAMS ((rtx, rtx));
|
||
extern int condjump_in_parallel_p PARAMS ((rtx));
|
||
extern void never_reached_warning PARAMS ((rtx));
|
||
|
||
/* Flags for jump_optimize() */
|
||
#define JUMP_CROSS_JUMP 1
|
||
#define JUMP_CROSS_JUMP_DEATH_MATTERS 2
|
||
#define JUMP_NOOP_MOVES 1
|
||
#define JUMP_AFTER_REGSCAN 1
|
||
|
||
/* In emit-rtl.c. */
|
||
extern int max_reg_num PARAMS ((void));
|
||
extern int max_label_num PARAMS ((void));
|
||
extern int get_first_label_num PARAMS ((void));
|
||
extern void delete_insns_since PARAMS ((rtx));
|
||
extern void mark_reg_pointer PARAMS ((rtx, int));
|
||
extern void mark_user_reg PARAMS ((rtx));
|
||
extern void reset_used_flags PARAMS ((rtx));
|
||
extern void reorder_insns PARAMS ((rtx, rtx, rtx));
|
||
extern int get_max_uid PARAMS ((void));
|
||
extern int in_sequence_p PARAMS ((void));
|
||
extern void force_next_line_note PARAMS ((void));
|
||
extern void clear_emit_caches PARAMS ((void));
|
||
extern void init_emit PARAMS ((void));
|
||
extern void init_emit_once PARAMS ((int));
|
||
extern void push_topmost_sequence PARAMS ((void));
|
||
extern void pop_topmost_sequence PARAMS ((void));
|
||
extern int subreg_realpart_p PARAMS ((rtx));
|
||
extern void reverse_comparison PARAMS ((rtx));
|
||
extern void set_new_first_and_last_insn PARAMS ((rtx, rtx));
|
||
extern void set_new_first_and_last_label_num PARAMS ((int, int));
|
||
extern void set_new_last_label_num PARAMS ((int));
|
||
extern void unshare_all_rtl_again PARAMS ((rtx));
|
||
extern void set_last_insn PARAMS ((rtx));
|
||
extern void link_cc0_insns PARAMS ((rtx));
|
||
extern void add_insn PARAMS ((rtx));
|
||
extern void add_insn_before PARAMS ((rtx, rtx));
|
||
extern void add_insn_after PARAMS ((rtx, rtx));
|
||
extern void remove_insn PARAMS ((rtx));
|
||
extern void reorder_insns_with_line_notes PARAMS ((rtx, rtx, rtx));
|
||
extern void emit_insn_after_with_line_notes PARAMS ((rtx, rtx, rtx));
|
||
extern enum rtx_code classify_insn PARAMS ((rtx));
|
||
extern rtx emit PARAMS ((rtx));
|
||
/* 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. */
|
||
int force_line_numbers PARAMS ((void));
|
||
void restore_line_number_status PARAMS ((int old_value));
|
||
extern void renumber_insns PARAMS ((FILE *));
|
||
extern void remove_unnecessary_notes PARAMS ((void));
|
||
|
||
/* In insn-emit.c */
|
||
extern void add_clobbers PARAMS ((rtx, int));
|
||
|
||
/* In combine.c */
|
||
extern int combine_instructions PARAMS ((rtx, unsigned int));
|
||
extern unsigned int extended_count PARAMS ((rtx, enum machine_mode, int));
|
||
extern rtx remove_death PARAMS ((unsigned int, rtx));
|
||
#ifdef BUFSIZ
|
||
extern void dump_combine_stats PARAMS ((FILE *));
|
||
extern void dump_combine_total_stats PARAMS ((FILE *));
|
||
#endif
|
||
|
||
/* In sched.c. */
|
||
#ifdef BUFSIZ
|
||
extern void schedule_insns PARAMS ((FILE *));
|
||
#endif
|
||
extern void fix_sched_param PARAMS ((const char *, const char *));
|
||
|
||
/* In print-rtl.c */
|
||
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));
|
||
#ifdef BUFSIZ
|
||
extern void print_rtl PARAMS ((FILE *, rtx));
|
||
extern int print_rtl_single PARAMS ((FILE *, rtx));
|
||
extern void print_inline_rtx PARAMS ((FILE *, rtx, int));
|
||
#endif
|
||
|
||
/* In loop.c */
|
||
extern void init_loop PARAMS ((void));
|
||
extern rtx libcall_other_reg PARAMS ((rtx, rtx));
|
||
#ifdef BUFSIZ
|
||
extern void loop_optimize PARAMS ((rtx, FILE *, int, int));
|
||
#endif
|
||
extern void record_excess_regs PARAMS ((rtx, rtx, rtx *));
|
||
|
||
/* In function.c */
|
||
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 HOST_WIDE_INT get_frame_size PARAMS ((void));
|
||
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));
|
||
|
||
/* In reload.c */
|
||
extern int operands_match_p PARAMS ((rtx, rtx));
|
||
extern int safe_from_earlyclobber PARAMS ((rtx, rtx));
|
||
|
||
/* In stmt.c */
|
||
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));
|
||
|
||
/* In expr.c */
|
||
extern void init_expr_once PARAMS ((void));
|
||
extern void move_by_pieces PARAMS ((rtx, rtx, int, unsigned int));
|
||
|
||
/* In flow.c */
|
||
extern void allocate_bb_life_data PARAMS ((void));
|
||
extern void allocate_reg_life_data PARAMS ((void));
|
||
extern void recompute_reg_usage PARAMS ((rtx, int));
|
||
#ifdef BUFSIZ
|
||
extern void print_rtl_with_bb PARAMS ((FILE *, rtx));
|
||
extern void dump_flow_info PARAMS ((FILE *));
|
||
#endif
|
||
|
||
/* In expmed.c */
|
||
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,
|
||
unsigned HOST_WIDE_INT, rtx,
|
||
int, int));
|
||
|
||
/* In gcse.c */
|
||
#ifdef BUFSIZ
|
||
extern int gcse_main PARAMS ((rtx, FILE *));
|
||
#endif
|
||
|
||
/* In global.c */
|
||
extern void mark_elimination PARAMS ((int, int));
|
||
#ifdef BUFSIZ
|
||
extern int global_alloc PARAMS ((FILE *));
|
||
extern void dump_global_regs PARAMS ((FILE *));
|
||
#endif
|
||
#ifdef HARD_CONST
|
||
extern void retry_global_alloc PARAMS ((int, HARD_REG_SET));
|
||
#endif
|
||
extern void build_insn_chain PARAMS ((rtx));
|
||
|
||
/* In regclass.c */
|
||
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));
|
||
|
||
/* In regmove.c */
|
||
#ifdef BUFSIZ
|
||
extern void regmove_optimize PARAMS ((rtx, int, FILE *));
|
||
#endif
|
||
extern void combine_stack_adjustments PARAMS ((void));
|
||
|
||
/* In reorg.c */
|
||
#ifdef BUFSIZ
|
||
extern void dbr_schedule PARAMS ((rtx, FILE *));
|
||
#endif
|
||
|
||
/* In optabs.c */
|
||
extern void init_optabs PARAMS ((void));
|
||
|
||
/* In local-alloc.c */
|
||
#ifdef BUFSIZ
|
||
extern void dump_local_alloc PARAMS ((FILE *));
|
||
#endif
|
||
extern int local_alloc PARAMS ((void));
|
||
extern int function_invariant_p PARAMS ((rtx));
|
||
|
||
/* In reload1.c */
|
||
extern void reload_cse_regs PARAMS ((rtx));
|
||
extern void init_reload PARAMS ((void));
|
||
extern void mark_home_live PARAMS ((int));
|
||
#ifdef BUFSIZ
|
||
extern int reload PARAMS ((rtx, int, FILE *));
|
||
#endif
|
||
|
||
/* In caller-save.c */
|
||
extern void init_caller_save PARAMS ((void));
|
||
|
||
/* In profile.c */
|
||
extern void init_branch_prob PARAMS ((const char *));
|
||
#ifdef BUFSIZ
|
||
extern void branch_prob PARAMS ((rtx, FILE *));
|
||
extern void end_branch_prob PARAMS ((FILE *));
|
||
#endif
|
||
extern void output_func_start_profiler PARAMS ((void));
|
||
|
||
/* In reg-stack.c */
|
||
#ifdef BUFSIZ
|
||
extern void reg_to_stack PARAMS ((rtx, FILE *));
|
||
#endif
|
||
|
||
/* In fold-const.c */
|
||
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 *));
|
||
|
||
/* In calls.c */
|
||
extern void emit_library_call PARAMS ((rtx, int, enum machine_mode,
|
||
int, ...));
|
||
extern rtx emit_library_call_value PARAMS ((rtx, rtx, int,
|
||
enum machine_mode,
|
||
int, ...));
|
||
|
||
/* In unroll.c */
|
||
extern int set_dominates_use PARAMS ((int, int, int, rtx, rtx));
|
||
|
||
/* In varasm.c */
|
||
extern void bss_section PARAMS ((void));
|
||
extern int in_data_section PARAMS ((void));
|
||
extern int supports_one_only PARAMS ((void));
|
||
extern void init_varasm_once PARAMS ((void));
|
||
|
||
/* In rtl.c */
|
||
extern void init_rtl PARAMS ((void));
|
||
extern void rtx_free PARAMS ((rtx));
|
||
|
||
#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;
|
||
#if (GCC_VERSION >= 2007)
|
||
#define abort() fancy_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
|
||
#else
|
||
#define abort() fancy_abort (__FILE__, __LINE__, 0)
|
||
#endif
|
||
|
||
/* In alias.c */
|
||
extern rtx canon_rtx PARAMS ((rtx));
|
||
extern int true_dependence PARAMS ((rtx, enum machine_mode, rtx,
|
||
int (*)(rtx)));
|
||
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 void record_base_value PARAMS ((int, rtx, int));
|
||
extern void record_alias_subset PARAMS ((int, int));
|
||
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));
|
||
|
||
#ifdef STACK_REGS
|
||
extern int stack_regs_mentioned PARAMS ((rtx insn));
|
||
#endif
|
||
|
||
/* In toplev.c */
|
||
extern rtx stack_limit_rtx;
|
||
|
||
/* In regrename.c */
|
||
extern void regrename_optimize PARAMS ((void));
|
||
|
||
/* In condexec.c */
|
||
extern void if_convert PARAMS ((int));
|
||
|
||
#endif /* _RTL_H */
|