/* Definitions for code generation pass of GNU compiler.
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/* Definitions for code generation pass of GNU compiler.
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Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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Software Foundation; either version 3, or (at your option) any later
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version.
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_EXPR_H
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#ifndef GCC_EXPR_H
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#define GCC_EXPR_H
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#define GCC_EXPR_H
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/* For inhibit_defer_pop */
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/* For inhibit_defer_pop */
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#include "function.h"
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#include "function.h"
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/* For XEXP, GEN_INT, rtx_code */
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/* For XEXP, GEN_INT, rtx_code */
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#include "rtl.h"
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#include "rtl.h"
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/* For optimize_size */
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/* For optimize_size */
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#include "flags.h"
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#include "flags.h"
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/* For host_integerp, tree_low_cst, fold_convert, size_binop, ssize_int,
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/* For host_integerp, tree_low_cst, fold_convert, size_binop, ssize_int,
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TREE_CODE, TYPE_SIZE, int_size_in_bytes, */
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TREE_CODE, TYPE_SIZE, int_size_in_bytes, */
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#include "tree.h"
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#include "tree.h"
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/* For GET_MODE_BITSIZE, word_mode */
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/* For GET_MODE_BITSIZE, word_mode */
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#include "machmode.h"
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#include "machmode.h"
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/* The default branch cost is 1. */
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/* The default branch cost is 1. */
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#ifndef BRANCH_COST
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#ifndef BRANCH_COST
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#define BRANCH_COST 1
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#define BRANCH_COST 1
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#endif
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#endif
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/* This is the 4th arg to `expand_expr'.
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/* This is the 4th arg to `expand_expr'.
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EXPAND_STACK_PARM means we are possibly expanding a call param onto
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EXPAND_STACK_PARM means we are possibly expanding a call param onto
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the stack.
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the stack.
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EXPAND_SUM means it is ok to return a PLUS rtx or MULT rtx.
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EXPAND_SUM means it is ok to return a PLUS rtx or MULT rtx.
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EXPAND_INITIALIZER is similar but also record any labels on forced_labels.
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EXPAND_INITIALIZER is similar but also record any labels on forced_labels.
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EXPAND_CONST_ADDRESS means it is ok to return a MEM whose address
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EXPAND_CONST_ADDRESS means it is ok to return a MEM whose address
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is a constant that is not a legitimate address.
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is a constant that is not a legitimate address.
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EXPAND_WRITE means we are only going to write to the resulting rtx.
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EXPAND_WRITE means we are only going to write to the resulting rtx.
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EXPAND_MEMORY means we are interested in a memory result, even if
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EXPAND_MEMORY means we are interested in a memory result, even if
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the memory is constant and we could have propagated a constant value. */
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the memory is constant and we could have propagated a constant value. */
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enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,
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enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,
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EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE,
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EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE,
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EXPAND_MEMORY};
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EXPAND_MEMORY};
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/* Prevent the compiler from deferring stack pops. See
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/* Prevent the compiler from deferring stack pops. See
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inhibit_defer_pop for more information. */
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inhibit_defer_pop for more information. */
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#define NO_DEFER_POP (inhibit_defer_pop += 1)
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#define NO_DEFER_POP (inhibit_defer_pop += 1)
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/* Allow the compiler to defer stack pops. See inhibit_defer_pop for
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/* Allow the compiler to defer stack pops. See inhibit_defer_pop for
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more information. */
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more information. */
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#define OK_DEFER_POP (inhibit_defer_pop -= 1)
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#define OK_DEFER_POP (inhibit_defer_pop -= 1)
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/* If a memory-to-memory move would take MOVE_RATIO or more simple
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/* If a memory-to-memory move would take MOVE_RATIO or more simple
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move-instruction sequences, we will do a movmem or libcall instead. */
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move-instruction sequences, we will do a movmem or libcall instead. */
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#ifndef MOVE_RATIO
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#ifndef MOVE_RATIO
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#if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti)
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#if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti)
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#define MOVE_RATIO 2
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#define MOVE_RATIO 2
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#else
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#else
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/* If we are optimizing for space (-Os), cut down the default move ratio. */
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/* If we are optimizing for space (-Os), cut down the default move ratio. */
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#define MOVE_RATIO (optimize_size ? 3 : 15)
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#define MOVE_RATIO (optimize_size ? 3 : 15)
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#endif
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#endif
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#endif
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#endif
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/* If a clear memory operation would take CLEAR_RATIO or more simple
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/* If a clear memory operation would take CLEAR_RATIO or more simple
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move-instruction sequences, we will do a setmem or libcall instead. */
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move-instruction sequences, we will do a setmem or libcall instead. */
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#ifndef CLEAR_RATIO
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#ifndef CLEAR_RATIO
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#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti)
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#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti)
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#define CLEAR_RATIO 2
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#define CLEAR_RATIO 2
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#else
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#else
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/* If we are optimizing for space, cut down the default clear ratio. */
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/* If we are optimizing for space, cut down the default clear ratio. */
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#define CLEAR_RATIO (optimize_size ? 3 : 15)
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#define CLEAR_RATIO (optimize_size ? 3 : 15)
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#endif
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#endif
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#endif
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#endif
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enum direction {none, upward, downward};
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enum direction {none, upward, downward};
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/* Structure to record the size of a sequence of arguments
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/* Structure to record the size of a sequence of arguments
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as the sum of a tree-expression and a constant. This structure is
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as the sum of a tree-expression and a constant. This structure is
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also used to store offsets from the stack, which might be negative,
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also used to store offsets from the stack, which might be negative,
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so the variable part must be ssizetype, not sizetype. */
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so the variable part must be ssizetype, not sizetype. */
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struct args_size
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struct args_size
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{
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{
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HOST_WIDE_INT constant;
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HOST_WIDE_INT constant;
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tree var;
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tree var;
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};
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};
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/* Package up various arg related fields of struct args for
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/* Package up various arg related fields of struct args for
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locate_and_pad_parm. */
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locate_and_pad_parm. */
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struct locate_and_pad_arg_data
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struct locate_and_pad_arg_data
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{
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{
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/* Size of this argument on the stack, rounded up for any padding it
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/* Size of this argument on the stack, rounded up for any padding it
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gets. If REG_PARM_STACK_SPACE is defined, then register parms are
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gets. If REG_PARM_STACK_SPACE is defined, then register parms are
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counted here, otherwise they aren't. */
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counted here, otherwise they aren't. */
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struct args_size size;
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struct args_size size;
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/* Offset of this argument from beginning of stack-args. */
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/* Offset of this argument from beginning of stack-args. */
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struct args_size offset;
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struct args_size offset;
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/* Offset to the start of the stack slot. Different from OFFSET
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/* Offset to the start of the stack slot. Different from OFFSET
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if this arg pads downward. */
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if this arg pads downward. */
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struct args_size slot_offset;
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struct args_size slot_offset;
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/* The amount that the stack pointer needs to be adjusted to
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/* The amount that the stack pointer needs to be adjusted to
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force alignment for the next argument. */
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force alignment for the next argument. */
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struct args_size alignment_pad;
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struct args_size alignment_pad;
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/* Which way we should pad this arg. */
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/* Which way we should pad this arg. */
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enum direction where_pad;
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enum direction where_pad;
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/* slot_offset is at least this aligned. */
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/* slot_offset is at least this aligned. */
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unsigned int boundary;
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unsigned int boundary;
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};
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};
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/* Add the value of the tree INC to the `struct args_size' TO. */
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/* Add the value of the tree INC to the `struct args_size' TO. */
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#define ADD_PARM_SIZE(TO, INC) \
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#define ADD_PARM_SIZE(TO, INC) \
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do { \
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do { \
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tree inc = (INC); \
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tree inc = (INC); \
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if (host_integerp (inc, 0)) \
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if (host_integerp (inc, 0)) \
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(TO).constant += tree_low_cst (inc, 0); \
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(TO).constant += tree_low_cst (inc, 0); \
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else if ((TO).var == 0) \
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else if ((TO).var == 0) \
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(TO).var = fold_convert (ssizetype, inc); \
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(TO).var = fold_convert (ssizetype, inc); \
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else \
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else \
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(TO).var = size_binop (PLUS_EXPR, (TO).var, \
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(TO).var = size_binop (PLUS_EXPR, (TO).var, \
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fold_convert (ssizetype, inc)); \
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fold_convert (ssizetype, inc)); \
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} while (0)
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} while (0)
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#define SUB_PARM_SIZE(TO, DEC) \
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#define SUB_PARM_SIZE(TO, DEC) \
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do { \
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do { \
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tree dec = (DEC); \
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tree dec = (DEC); \
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if (host_integerp (dec, 0)) \
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if (host_integerp (dec, 0)) \
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(TO).constant -= tree_low_cst (dec, 0); \
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(TO).constant -= tree_low_cst (dec, 0); \
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else if ((TO).var == 0) \
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else if ((TO).var == 0) \
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(TO).var = size_binop (MINUS_EXPR, ssize_int (0), \
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(TO).var = size_binop (MINUS_EXPR, ssize_int (0), \
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fold_convert (ssizetype, dec)); \
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fold_convert (ssizetype, dec)); \
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else \
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else \
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(TO).var = size_binop (MINUS_EXPR, (TO).var, \
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(TO).var = size_binop (MINUS_EXPR, (TO).var, \
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fold_convert (ssizetype, dec)); \
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fold_convert (ssizetype, dec)); \
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} while (0)
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} while (0)
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/* Convert the implicit sum in a `struct args_size' into a tree
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/* Convert the implicit sum in a `struct args_size' into a tree
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of type ssizetype. */
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of type ssizetype. */
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#define ARGS_SIZE_TREE(SIZE) \
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#define ARGS_SIZE_TREE(SIZE) \
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((SIZE).var == 0 ? ssize_int ((SIZE).constant) \
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((SIZE).var == 0 ? ssize_int ((SIZE).constant) \
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: size_binop (PLUS_EXPR, fold_convert (ssizetype, (SIZE).var), \
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: size_binop (PLUS_EXPR, fold_convert (ssizetype, (SIZE).var), \
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ssize_int ((SIZE).constant)))
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ssize_int ((SIZE).constant)))
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/* Convert the implicit sum in a `struct args_size' into an rtx. */
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/* Convert the implicit sum in a `struct args_size' into an rtx. */
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#define ARGS_SIZE_RTX(SIZE) \
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#define ARGS_SIZE_RTX(SIZE) \
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((SIZE).var == 0 ? GEN_INT ((SIZE).constant) \
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((SIZE).var == 0 ? GEN_INT ((SIZE).constant) \
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: expand_normal (ARGS_SIZE_TREE (SIZE)))
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: expand_normal (ARGS_SIZE_TREE (SIZE)))
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/* Supply a default definition for FUNCTION_ARG_PADDING:
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/* Supply a default definition for FUNCTION_ARG_PADDING:
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usually pad upward, but pad short args downward on
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usually pad upward, but pad short args downward on
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big-endian machines. */
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big-endian machines. */
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#define DEFAULT_FUNCTION_ARG_PADDING(MODE, TYPE) \
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#define DEFAULT_FUNCTION_ARG_PADDING(MODE, TYPE) \
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(! BYTES_BIG_ENDIAN \
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(! BYTES_BIG_ENDIAN \
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? upward \
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? upward \
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: (((MODE) == BLKmode \
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: (((MODE) == BLKmode \
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? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \
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? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \
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&& int_size_in_bytes (TYPE) < (PARM_BOUNDARY / BITS_PER_UNIT)) \
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&& int_size_in_bytes (TYPE) < (PARM_BOUNDARY / BITS_PER_UNIT)) \
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: GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \
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: GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \
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? downward : upward))
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? downward : upward))
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#ifndef FUNCTION_ARG_PADDING
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#ifndef FUNCTION_ARG_PADDING
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#define FUNCTION_ARG_PADDING(MODE, TYPE) \
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#define FUNCTION_ARG_PADDING(MODE, TYPE) \
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DEFAULT_FUNCTION_ARG_PADDING ((MODE), (TYPE))
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DEFAULT_FUNCTION_ARG_PADDING ((MODE), (TYPE))
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#endif
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#endif
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/* Supply a default definition for FUNCTION_ARG_BOUNDARY. Normally, we let
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/* Supply a default definition for FUNCTION_ARG_BOUNDARY. Normally, we let
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FUNCTION_ARG_PADDING, which also pads the length, handle any needed
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FUNCTION_ARG_PADDING, which also pads the length, handle any needed
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alignment. */
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alignment. */
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#ifndef FUNCTION_ARG_BOUNDARY
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#ifndef FUNCTION_ARG_BOUNDARY
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#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) PARM_BOUNDARY
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#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) PARM_BOUNDARY
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#endif
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#endif
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/* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
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/* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
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Normally move_insn, so Pmode stack pointer. */
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Normally move_insn, so Pmode stack pointer. */
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#ifndef STACK_SAVEAREA_MODE
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#ifndef STACK_SAVEAREA_MODE
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#define STACK_SAVEAREA_MODE(LEVEL) Pmode
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#define STACK_SAVEAREA_MODE(LEVEL) Pmode
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#endif
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#endif
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/* Supply a default definition of STACK_SIZE_MODE for
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/* Supply a default definition of STACK_SIZE_MODE for
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allocate_dynamic_stack_space. Normally PLUS/MINUS, so word_mode. */
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allocate_dynamic_stack_space. Normally PLUS/MINUS, so word_mode. */
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#ifndef STACK_SIZE_MODE
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#ifndef STACK_SIZE_MODE
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#define STACK_SIZE_MODE word_mode
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#define STACK_SIZE_MODE word_mode
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#endif
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#endif
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/* Provide default values for the macros controlling stack checking. */
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/* Provide default values for the macros controlling stack checking. */
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#ifndef STACK_CHECK_BUILTIN
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#ifndef STACK_CHECK_BUILTIN
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#define STACK_CHECK_BUILTIN 0
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#define STACK_CHECK_BUILTIN 0
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#endif
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#endif
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/* The default interval is one page. */
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/* The default interval is one page. */
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#ifndef STACK_CHECK_PROBE_INTERVAL
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#ifndef STACK_CHECK_PROBE_INTERVAL
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#define STACK_CHECK_PROBE_INTERVAL 4096
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#define STACK_CHECK_PROBE_INTERVAL 4096
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#endif
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#endif
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/* The default is to do a store into the stack. */
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/* The default is to do a store into the stack. */
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#ifndef STACK_CHECK_PROBE_LOAD
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#ifndef STACK_CHECK_PROBE_LOAD
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#define STACK_CHECK_PROBE_LOAD 0
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#define STACK_CHECK_PROBE_LOAD 0
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#endif
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#endif
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/* This value is arbitrary, but should be sufficient for most machines. */
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/* This value is arbitrary, but should be sufficient for most machines. */
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#ifndef STACK_CHECK_PROTECT
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#ifndef STACK_CHECK_PROTECT
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#define STACK_CHECK_PROTECT (75 * UNITS_PER_WORD)
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#define STACK_CHECK_PROTECT (75 * UNITS_PER_WORD)
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#endif
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#endif
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/* Make the maximum frame size be the largest we can and still only need
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/* Make the maximum frame size be the largest we can and still only need
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one probe per function. */
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one probe per function. */
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#ifndef STACK_CHECK_MAX_FRAME_SIZE
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#ifndef STACK_CHECK_MAX_FRAME_SIZE
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#define STACK_CHECK_MAX_FRAME_SIZE \
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#define STACK_CHECK_MAX_FRAME_SIZE \
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(STACK_CHECK_PROBE_INTERVAL - UNITS_PER_WORD)
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(STACK_CHECK_PROBE_INTERVAL - UNITS_PER_WORD)
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#endif
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#endif
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/* This is arbitrary, but should be large enough everywhere. */
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/* This is arbitrary, but should be large enough everywhere. */
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#ifndef STACK_CHECK_FIXED_FRAME_SIZE
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#ifndef STACK_CHECK_FIXED_FRAME_SIZE
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#define STACK_CHECK_FIXED_FRAME_SIZE (4 * UNITS_PER_WORD)
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#define STACK_CHECK_FIXED_FRAME_SIZE (4 * UNITS_PER_WORD)
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#endif
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#endif
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/* Provide a reasonable default for the maximum size of an object to
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/* Provide a reasonable default for the maximum size of an object to
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allocate in the fixed frame. We may need to be able to make this
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allocate in the fixed frame. We may need to be able to make this
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controllable by the user at some point. */
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controllable by the user at some point. */
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#ifndef STACK_CHECK_MAX_VAR_SIZE
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#ifndef STACK_CHECK_MAX_VAR_SIZE
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#define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
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#define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
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#endif
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#endif
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/* Functions from optabs.c, commonly used, and without need for the optabs
|
/* Functions from optabs.c, commonly used, and without need for the optabs
|
tables: */
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tables: */
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|
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/* Passed to expand_simple_binop and expand_binop to say which options
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/* Passed to expand_simple_binop and expand_binop to say which options
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to try to use if the requested operation can't be open-coded on the
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to try to use if the requested operation can't be open-coded on the
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requisite mode. Either OPTAB_LIB or OPTAB_LIB_WIDEN says try using
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requisite mode. Either OPTAB_LIB or OPTAB_LIB_WIDEN says try using
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a library call. Either OPTAB_WIDEN or OPTAB_LIB_WIDEN says try
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a library call. Either OPTAB_WIDEN or OPTAB_LIB_WIDEN says try
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using a wider mode. OPTAB_MUST_WIDEN says try widening and don't
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using a wider mode. OPTAB_MUST_WIDEN says try widening and don't
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try anything else. */
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try anything else. */
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|
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enum optab_methods
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enum optab_methods
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{
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{
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OPTAB_DIRECT,
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OPTAB_DIRECT,
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OPTAB_LIB,
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OPTAB_LIB,
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OPTAB_WIDEN,
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OPTAB_WIDEN,
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OPTAB_LIB_WIDEN,
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OPTAB_LIB_WIDEN,
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OPTAB_MUST_WIDEN
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OPTAB_MUST_WIDEN
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};
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};
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|
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/* Generate code for a simple binary or unary operation. "Simple" in
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/* Generate code for a simple binary or unary operation. "Simple" in
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this case means "can be unambiguously described by a (mode, code)
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this case means "can be unambiguously described by a (mode, code)
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pair and mapped to a single optab." */
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pair and mapped to a single optab." */
|
extern rtx expand_simple_binop (enum machine_mode, enum rtx_code, rtx,
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extern rtx expand_simple_binop (enum machine_mode, enum rtx_code, rtx,
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rtx, rtx, int, enum optab_methods);
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rtx, rtx, int, enum optab_methods);
|
extern rtx expand_simple_unop (enum machine_mode, enum rtx_code, rtx, rtx,
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extern rtx expand_simple_unop (enum machine_mode, enum rtx_code, rtx, rtx,
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int);
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int);
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|
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/* Report whether the machine description contains an insn which can
|
/* Report whether the machine description contains an insn which can
|
perform the operation described by CODE and MODE. */
|
perform the operation described by CODE and MODE. */
|
extern int have_insn_for (enum rtx_code, enum machine_mode);
|
extern int have_insn_for (enum rtx_code, enum machine_mode);
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|
|
/* Emit code to make a call to a constant function or a library call. */
|
/* Emit code to make a call to a constant function or a library call. */
|
extern void emit_libcall_block (rtx, rtx, rtx, rtx);
|
extern void emit_libcall_block (rtx, rtx, rtx, rtx);
|
|
|
/* Create but don't emit one rtl instruction to perform certain operations.
|
/* Create but don't emit one rtl instruction to perform certain operations.
|
Modes must match; operands must meet the operation's predicates.
|
Modes must match; operands must meet the operation's predicates.
|
Likewise for subtraction and for just copying. */
|
Likewise for subtraction and for just copying. */
|
extern rtx gen_add2_insn (rtx, rtx);
|
extern rtx gen_add2_insn (rtx, rtx);
|
extern rtx gen_add3_insn (rtx, rtx, rtx);
|
extern rtx gen_add3_insn (rtx, rtx, rtx);
|
extern rtx gen_sub2_insn (rtx, rtx);
|
extern rtx gen_sub2_insn (rtx, rtx);
|
extern rtx gen_sub3_insn (rtx, rtx, rtx);
|
extern rtx gen_sub3_insn (rtx, rtx, rtx);
|
extern rtx gen_move_insn (rtx, rtx);
|
extern rtx gen_move_insn (rtx, rtx);
|
extern int have_add2_insn (rtx, rtx);
|
extern int have_add2_insn (rtx, rtx);
|
extern int have_sub2_insn (rtx, rtx);
|
extern int have_sub2_insn (rtx, rtx);
|
|
|
/* Emit a pair of rtl insns to compare two rtx's and to jump
|
/* Emit a pair of rtl insns to compare two rtx's and to jump
|
to a label if the comparison is true. */
|
to a label if the comparison is true. */
|
extern void emit_cmp_and_jump_insns (rtx, rtx, enum rtx_code, rtx,
|
extern void emit_cmp_and_jump_insns (rtx, rtx, enum rtx_code, rtx,
|
enum machine_mode, int, rtx);
|
enum machine_mode, int, rtx);
|
|
|
/* Generate code to indirectly jump to a location given in the rtx LOC. */
|
/* Generate code to indirectly jump to a location given in the rtx LOC. */
|
extern void emit_indirect_jump (rtx);
|
extern void emit_indirect_jump (rtx);
|
|
|
/* Generate a conditional trap instruction. */
|
/* Generate a conditional trap instruction. */
|
extern rtx gen_cond_trap (enum rtx_code, rtx, rtx, rtx);
|
extern rtx gen_cond_trap (enum rtx_code, rtx, rtx, rtx);
|
|
|
#include "insn-config.h"
|
#include "insn-config.h"
|
|
|
#ifdef HAVE_conditional_move
|
#ifdef HAVE_conditional_move
|
/* Emit a conditional move operation. */
|
/* Emit a conditional move operation. */
|
rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
|
rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
|
rtx, rtx, enum machine_mode, int);
|
rtx, rtx, enum machine_mode, int);
|
|
|
/* Return nonzero if the conditional move is supported. */
|
/* Return nonzero if the conditional move is supported. */
|
int can_conditionally_move_p (enum machine_mode mode);
|
int can_conditionally_move_p (enum machine_mode mode);
|
|
|
#endif
|
#endif
|
rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
|
rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
|
rtx, rtx, enum machine_mode, int);
|
rtx, rtx, enum machine_mode, int);
|
|
|
rtx expand_val_compare_and_swap (rtx, rtx, rtx, rtx);
|
rtx expand_val_compare_and_swap (rtx, rtx, rtx, rtx);
|
rtx expand_bool_compare_and_swap (rtx, rtx, rtx, rtx);
|
rtx expand_bool_compare_and_swap (rtx, rtx, rtx, rtx);
|
rtx expand_sync_operation (rtx, rtx, enum rtx_code);
|
rtx expand_sync_operation (rtx, rtx, enum rtx_code);
|
rtx expand_sync_fetch_operation (rtx, rtx, enum rtx_code, bool, rtx);
|
rtx expand_sync_fetch_operation (rtx, rtx, enum rtx_code, bool, rtx);
|
rtx expand_sync_lock_test_and_set (rtx, rtx, rtx);
|
rtx expand_sync_lock_test_and_set (rtx, rtx, rtx);
|
|
|
/* Functions from expmed.c: */
|
/* Functions from expmed.c: */
|
|
|
/* Arguments MODE, RTX: return an rtx for the negation of that value.
|
/* Arguments MODE, RTX: return an rtx for the negation of that value.
|
May emit insns. */
|
May emit insns. */
|
extern rtx negate_rtx (enum machine_mode, rtx);
|
extern rtx negate_rtx (enum machine_mode, rtx);
|
|
|
/* Expand a logical AND operation. */
|
/* Expand a logical AND operation. */
|
extern rtx expand_and (enum machine_mode, rtx, rtx, rtx);
|
extern rtx expand_and (enum machine_mode, rtx, rtx, rtx);
|
|
|
/* Emit a store-flag operation. */
|
/* Emit a store-flag operation. */
|
extern rtx emit_store_flag (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
|
extern rtx emit_store_flag (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
|
int, int);
|
int, int);
|
|
|
/* Like emit_store_flag, but always succeeds. */
|
/* Like emit_store_flag, but always succeeds. */
|
extern rtx emit_store_flag_force (rtx, enum rtx_code, rtx, rtx,
|
extern rtx emit_store_flag_force (rtx, enum rtx_code, rtx, rtx,
|
enum machine_mode, int, int);
|
enum machine_mode, int, int);
|
|
|
/* Functions from builtins.c: */
|
/* Functions from builtins.c: */
|
extern rtx expand_builtin (tree, rtx, rtx, enum machine_mode, int);
|
extern rtx expand_builtin (tree, rtx, rtx, enum machine_mode, int);
|
extern tree std_build_builtin_va_list (void);
|
extern tree std_build_builtin_va_list (void);
|
extern void std_expand_builtin_va_start (tree, rtx);
|
extern void std_expand_builtin_va_start (tree, rtx);
|
extern rtx default_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
|
extern rtx default_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
|
extern void expand_builtin_setjmp_setup (rtx, rtx);
|
extern void expand_builtin_setjmp_setup (rtx, rtx);
|
extern void expand_builtin_setjmp_receiver (rtx);
|
extern void expand_builtin_setjmp_receiver (rtx);
|
extern rtx expand_builtin_saveregs (void);
|
extern rtx expand_builtin_saveregs (void);
|
extern void expand_builtin_trap (void);
|
extern void expand_builtin_trap (void);
|
|
|
/* Functions from expr.c: */
|
/* Functions from expr.c: */
|
|
|
/* This is run once per compilation to set up which modes can be used
|
/* This is run once per compilation to set up which modes can be used
|
directly in memory and to initialize the block move optab. */
|
directly in memory and to initialize the block move optab. */
|
extern void init_expr_once (void);
|
extern void init_expr_once (void);
|
|
|
/* This is run at the start of compiling a function. */
|
/* This is run at the start of compiling a function. */
|
extern void init_expr (void);
|
extern void init_expr (void);
|
|
|
/* Emit some rtl insns to move data between rtx's, converting machine modes.
|
/* Emit some rtl insns to move data between rtx's, converting machine modes.
|
Both modes must be floating or both fixed. */
|
Both modes must be floating or both fixed. */
|
extern void convert_move (rtx, rtx, int);
|
extern void convert_move (rtx, rtx, int);
|
|
|
/* Convert an rtx to specified machine mode and return the result. */
|
/* Convert an rtx to specified machine mode and return the result. */
|
extern rtx convert_to_mode (enum machine_mode, rtx, int);
|
extern rtx convert_to_mode (enum machine_mode, rtx, int);
|
|
|
/* Convert an rtx to MODE from OLDMODE and return the result. */
|
/* Convert an rtx to MODE from OLDMODE and return the result. */
|
extern rtx convert_modes (enum machine_mode, enum machine_mode, rtx, int);
|
extern rtx convert_modes (enum machine_mode, enum machine_mode, rtx, int);
|
|
|
/* Emit code to move a block Y to a block X. */
|
/* Emit code to move a block Y to a block X. */
|
|
|
enum block_op_methods
|
enum block_op_methods
|
{
|
{
|
BLOCK_OP_NORMAL,
|
BLOCK_OP_NORMAL,
|
BLOCK_OP_NO_LIBCALL,
|
BLOCK_OP_NO_LIBCALL,
|
BLOCK_OP_CALL_PARM,
|
BLOCK_OP_CALL_PARM,
|
/* Like BLOCK_OP_NORMAL, but the libcall can be tail call optimized. */
|
/* Like BLOCK_OP_NORMAL, but the libcall can be tail call optimized. */
|
BLOCK_OP_TAILCALL
|
BLOCK_OP_TAILCALL
|
};
|
};
|
|
|
extern void init_block_move_fn (const char *);
|
extern void init_block_move_fn (const char *);
|
extern void init_block_clear_fn (const char *);
|
extern void init_block_clear_fn (const char *);
|
|
|
extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods);
|
extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods);
|
|
|
/* Copy all or part of a value X into registers starting at REGNO.
|
/* Copy all or part of a value X into registers starting at REGNO.
|
The number of registers to be filled is NREGS. */
|
The number of registers to be filled is NREGS. */
|
extern void move_block_to_reg (int, rtx, int, enum machine_mode);
|
extern void move_block_to_reg (int, rtx, int, enum machine_mode);
|
|
|
/* Copy all or part of a BLKmode value X out of registers starting at REGNO.
|
/* Copy all or part of a BLKmode value X out of registers starting at REGNO.
|
The number of registers to be filled is NREGS. */
|
The number of registers to be filled is NREGS. */
|
extern void move_block_from_reg (int, rtx, int);
|
extern void move_block_from_reg (int, rtx, int);
|
|
|
/* Generate a non-consecutive group of registers represented by a PARALLEL. */
|
/* Generate a non-consecutive group of registers represented by a PARALLEL. */
|
extern rtx gen_group_rtx (rtx);
|
extern rtx gen_group_rtx (rtx);
|
|
|
/* Load a BLKmode value into non-consecutive registers represented by a
|
/* Load a BLKmode value into non-consecutive registers represented by a
|
PARALLEL. */
|
PARALLEL. */
|
extern void emit_group_load (rtx, rtx, tree, int);
|
extern void emit_group_load (rtx, rtx, tree, int);
|
|
|
/* Similarly, but load into new temporaries. */
|
/* Similarly, but load into new temporaries. */
|
extern rtx emit_group_load_into_temps (rtx, rtx, tree, int);
|
extern rtx emit_group_load_into_temps (rtx, rtx, tree, int);
|
|
|
/* Move a non-consecutive group of registers represented by a PARALLEL into
|
/* Move a non-consecutive group of registers represented by a PARALLEL into
|
a non-consecutive group of registers represented by a PARALLEL. */
|
a non-consecutive group of registers represented by a PARALLEL. */
|
extern void emit_group_move (rtx, rtx);
|
extern void emit_group_move (rtx, rtx);
|
|
|
/* Move a group of registers represented by a PARALLEL into pseudos. */
|
/* Move a group of registers represented by a PARALLEL into pseudos. */
|
extern rtx emit_group_move_into_temps (rtx);
|
extern rtx emit_group_move_into_temps (rtx);
|
|
|
/* Store a BLKmode value from non-consecutive registers represented by a
|
/* Store a BLKmode value from non-consecutive registers represented by a
|
PARALLEL. */
|
PARALLEL. */
|
extern void emit_group_store (rtx, rtx, tree, int);
|
extern void emit_group_store (rtx, rtx, tree, int);
|
|
|
/* Copy BLKmode object from a set of registers. */
|
/* Copy BLKmode object from a set of registers. */
|
extern rtx copy_blkmode_from_reg (rtx, rtx, tree);
|
extern rtx copy_blkmode_from_reg (rtx, rtx, tree);
|
|
|
/* Mark REG as holding a parameter for the next CALL_INSN. */
|
/* Mark REG as holding a parameter for the next CALL_INSN. */
|
extern void use_reg (rtx *, rtx);
|
extern void use_reg (rtx *, rtx);
|
|
|
/* Mark NREGS consecutive regs, starting at REGNO, as holding parameters
|
/* Mark NREGS consecutive regs, starting at REGNO, as holding parameters
|
for the next CALL_INSN. */
|
for the next CALL_INSN. */
|
extern void use_regs (rtx *, int, int);
|
extern void use_regs (rtx *, int, int);
|
|
|
/* Mark a PARALLEL as holding a parameter for the next CALL_INSN. */
|
/* Mark a PARALLEL as holding a parameter for the next CALL_INSN. */
|
extern void use_group_regs (rtx *, rtx);
|
extern void use_group_regs (rtx *, rtx);
|
|
|
/* Write zeros through the storage of OBJECT.
|
/* Write zeros through the storage of OBJECT.
|
If OBJECT has BLKmode, SIZE is its length in bytes. */
|
If OBJECT has BLKmode, SIZE is its length in bytes. */
|
extern rtx clear_storage (rtx, rtx, enum block_op_methods);
|
extern rtx clear_storage (rtx, rtx, enum block_op_methods);
|
|
|
/* Expand a setmem pattern; return true if successful. */
|
/* Expand a setmem pattern; return true if successful. */
|
extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int);
|
extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int);
|
|
|
/* Determine whether the LEN bytes can be moved by using several move
|
/* Determine whether the LEN bytes can be moved by using several move
|
instructions. Return nonzero if a call to move_by_pieces should
|
instructions. Return nonzero if a call to move_by_pieces should
|
succeed. */
|
succeed. */
|
extern int can_move_by_pieces (unsigned HOST_WIDE_INT, unsigned int);
|
extern int can_move_by_pieces (unsigned HOST_WIDE_INT, unsigned int);
|
|
|
/* Return nonzero if it is desirable to store LEN bytes generated by
|
/* Return nonzero if it is desirable to store LEN bytes generated by
|
CONSTFUN with several move instructions by store_by_pieces
|
CONSTFUN with several move instructions by store_by_pieces
|
function. CONSTFUNDATA is a pointer which will be passed as argument
|
function. CONSTFUNDATA is a pointer which will be passed as argument
|
in every CONSTFUN call.
|
in every CONSTFUN call.
|
ALIGN is maximum alignment we can assume. */
|
ALIGN is maximum alignment we can assume. */
|
extern int can_store_by_pieces (unsigned HOST_WIDE_INT,
|
extern int can_store_by_pieces (unsigned HOST_WIDE_INT,
|
rtx (*) (void *, HOST_WIDE_INT,
|
rtx (*) (void *, HOST_WIDE_INT,
|
enum machine_mode),
|
enum machine_mode),
|
void *, unsigned int);
|
void *, unsigned int);
|
|
|
/* Generate several move instructions to store LEN bytes generated by
|
/* Generate several move instructions to store LEN bytes generated by
|
CONSTFUN to block TO. (A MEM rtx with BLKmode). CONSTFUNDATA is a
|
CONSTFUN to block TO. (A MEM rtx with BLKmode). CONSTFUNDATA is a
|
pointer which will be passed as argument in every CONSTFUN call.
|
pointer which will be passed as argument in every CONSTFUN call.
|
ALIGN is maximum alignment we can assume.
|
ALIGN is maximum alignment we can assume.
|
Returns TO + LEN. */
|
Returns TO + LEN. */
|
extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT,
|
extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT,
|
rtx (*) (void *, HOST_WIDE_INT, enum machine_mode),
|
rtx (*) (void *, HOST_WIDE_INT, enum machine_mode),
|
void *, unsigned int, int);
|
void *, unsigned int, int);
|
|
|
/* Emit insns to set X from Y. */
|
/* Emit insns to set X from Y. */
|
extern rtx emit_move_insn (rtx, rtx);
|
extern rtx emit_move_insn (rtx, rtx);
|
|
|
/* Emit insns to set X from Y, with no frills. */
|
/* Emit insns to set X from Y, with no frills. */
|
extern rtx emit_move_insn_1 (rtx, rtx);
|
extern rtx emit_move_insn_1 (rtx, rtx);
|
|
|
/* Push a block of length SIZE (perhaps variable)
|
/* Push a block of length SIZE (perhaps variable)
|
and return an rtx to address the beginning of the block. */
|
and return an rtx to address the beginning of the block. */
|
extern rtx push_block (rtx, int, int);
|
extern rtx push_block (rtx, int, int);
|
|
|
/* Generate code to push something onto the stack, given its mode and type. */
|
/* Generate code to push something onto the stack, given its mode and type. */
|
extern void emit_push_insn (rtx, enum machine_mode, tree, rtx, unsigned int,
|
extern void emit_push_insn (rtx, enum machine_mode, tree, rtx, unsigned int,
|
int, rtx, int, rtx, rtx, int, rtx);
|
int, rtx, int, rtx, rtx, int, rtx);
|
|
|
/* Expand an assignment that stores the value of FROM into TO. */
|
/* Expand an assignment that stores the value of FROM into TO. */
|
extern void expand_assignment (tree, tree);
|
extern void expand_assignment (tree, tree);
|
|
|
/* Generate code for computing expression EXP,
|
/* Generate code for computing expression EXP,
|
and storing the value into TARGET.
|
and storing the value into TARGET.
|
If SUGGEST_REG is nonzero, copy the value through a register
|
If SUGGEST_REG is nonzero, copy the value through a register
|
and return that register, if that is possible. */
|
and return that register, if that is possible. */
|
extern rtx store_expr (tree, rtx, int);
|
extern rtx store_expr (tree, rtx, int);
|
|
|
/* Given an rtx that may include add and multiply operations,
|
/* Given an rtx that may include add and multiply operations,
|
generate them as insns and return a pseudo-reg containing the value.
|
generate them as insns and return a pseudo-reg containing the value.
|
Useful after calling expand_expr with 1 as sum_ok. */
|
Useful after calling expand_expr with 1 as sum_ok. */
|
extern rtx force_operand (rtx, rtx);
|
extern rtx force_operand (rtx, rtx);
|
|
|
/* Work horse for expand_expr. */
|
/* Work horse for expand_expr. */
|
extern rtx expand_expr_real (tree, rtx, enum machine_mode,
|
extern rtx expand_expr_real (tree, rtx, enum machine_mode,
|
enum expand_modifier, rtx *);
|
enum expand_modifier, rtx *);
|
|
|
/* Generate code for computing expression EXP.
|
/* Generate code for computing expression EXP.
|
An rtx for the computed value is returned. The value is never null.
|
An rtx for the computed value is returned. The value is never null.
|
In the case of a void EXP, const0_rtx is returned. */
|
In the case of a void EXP, const0_rtx is returned. */
|
static inline rtx
|
static inline rtx
|
expand_expr (tree exp, rtx target, enum machine_mode mode,
|
expand_expr (tree exp, rtx target, enum machine_mode mode,
|
enum expand_modifier modifier)
|
enum expand_modifier modifier)
|
{
|
{
|
return expand_expr_real (exp, target, mode, modifier, NULL);
|
return expand_expr_real (exp, target, mode, modifier, NULL);
|
}
|
}
|
|
|
static inline rtx
|
static inline rtx
|
expand_normal (tree exp)
|
expand_normal (tree exp)
|
{
|
{
|
return expand_expr_real (exp, NULL_RTX, VOIDmode, EXPAND_NORMAL, NULL);
|
return expand_expr_real (exp, NULL_RTX, VOIDmode, EXPAND_NORMAL, NULL);
|
}
|
}
|
|
|
extern void expand_var (tree);
|
extern void expand_var (tree);
|
|
|
/* At the start of a function, record that we have no previously-pushed
|
/* At the start of a function, record that we have no previously-pushed
|
arguments waiting to be popped. */
|
arguments waiting to be popped. */
|
extern void init_pending_stack_adjust (void);
|
extern void init_pending_stack_adjust (void);
|
|
|
/* Discard any pending stack adjustment. */
|
/* Discard any pending stack adjustment. */
|
extern void discard_pending_stack_adjust (void);
|
extern void discard_pending_stack_adjust (void);
|
|
|
/* When exiting from function, if safe, clear out any pending stack adjust
|
/* When exiting from function, if safe, clear out any pending stack adjust
|
so the adjustment won't get done. */
|
so the adjustment won't get done. */
|
extern void clear_pending_stack_adjust (void);
|
extern void clear_pending_stack_adjust (void);
|
|
|
/* Pop any previously-pushed arguments that have not been popped yet. */
|
/* Pop any previously-pushed arguments that have not been popped yet. */
|
extern void do_pending_stack_adjust (void);
|
extern void do_pending_stack_adjust (void);
|
|
|
/* Return the tree node and offset if a given argument corresponds to
|
/* Return the tree node and offset if a given argument corresponds to
|
a string constant. */
|
a string constant. */
|
extern tree string_constant (tree, tree *);
|
extern tree string_constant (tree, tree *);
|
|
|
/* Generate code to evaluate EXP and jump to LABEL if the value is zero. */
|
/* Generate code to evaluate EXP and jump to LABEL if the value is zero. */
|
extern void jumpifnot (tree, rtx);
|
extern void jumpifnot (tree, rtx);
|
|
|
/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */
|
/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */
|
extern void jumpif (tree, rtx);
|
extern void jumpif (tree, rtx);
|
|
|
/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
|
/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
|
the result is zero, or IF_TRUE_LABEL if the result is one. */
|
the result is zero, or IF_TRUE_LABEL if the result is one. */
|
extern void do_jump (tree, rtx, rtx);
|
extern void do_jump (tree, rtx, rtx);
|
|
|
/* Generate rtl to compare two rtx's, will call emit_cmp_insn. */
|
/* Generate rtl to compare two rtx's, will call emit_cmp_insn. */
|
extern rtx compare_from_rtx (rtx, rtx, enum rtx_code, int, enum machine_mode,
|
extern rtx compare_from_rtx (rtx, rtx, enum rtx_code, int, enum machine_mode,
|
rtx);
|
rtx);
|
extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
|
extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
|
enum machine_mode, rtx, rtx, rtx);
|
enum machine_mode, rtx, rtx, rtx);
|
|
|
/* Two different ways of generating switch statements. */
|
/* Two different ways of generating switch statements. */
|
extern int try_casesi (tree, tree, tree, tree, rtx, rtx);
|
extern int try_casesi (tree, tree, tree, tree, rtx, rtx);
|
extern int try_tablejump (tree, tree, tree, tree, rtx, rtx);
|
extern int try_tablejump (tree, tree, tree, tree, rtx, rtx);
|
|
|
/* Smallest number of adjacent cases before we use a jump table.
|
/* Smallest number of adjacent cases before we use a jump table.
|
XXX Should be a target hook. */
|
XXX Should be a target hook. */
|
extern unsigned int case_values_threshold (void);
|
extern unsigned int case_values_threshold (void);
|
|
|
/* Functions from alias.c */
|
/* Functions from alias.c */
|
#include "alias.h"
|
#include "alias.h"
|
|
|
|
|
/* rtl.h and tree.h were included. */
|
/* rtl.h and tree.h were included. */
|
/* Return an rtx for the size in bytes of the value of an expr. */
|
/* Return an rtx for the size in bytes of the value of an expr. */
|
extern rtx expr_size (tree);
|
extern rtx expr_size (tree);
|
|
|
/* Return a wide integer for the size in bytes of the value of EXP, or -1
|
/* Return a wide integer for the size in bytes of the value of EXP, or -1
|
if the size can vary or is larger than an integer. */
|
if the size can vary or is larger than an integer. */
|
extern HOST_WIDE_INT int_expr_size (tree);
|
extern HOST_WIDE_INT int_expr_size (tree);
|
|
|
/* Return an rtx that refers to the value returned by a function
|
/* Return an rtx that refers to the value returned by a function
|
in its original home. This becomes invalid if any more code is emitted. */
|
in its original home. This becomes invalid if any more code is emitted. */
|
extern rtx hard_function_value (tree, tree, tree, int);
|
extern rtx hard_function_value (tree, tree, tree, int);
|
|
|
extern rtx prepare_call_address (rtx, rtx, rtx *, int, int);
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extern rtx prepare_call_address (rtx, rtx, rtx *, int, int);
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|
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extern bool shift_return_value (enum machine_mode, bool, rtx);
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extern bool shift_return_value (enum machine_mode, bool, rtx);
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|
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extern rtx expand_call (tree, rtx, int);
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extern rtx expand_call (tree, rtx, int);
|
|
|
extern void fixup_tail_calls (void);
|
extern void fixup_tail_calls (void);
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|
|
#ifdef TREE_CODE
|
#ifdef TREE_CODE
|
extern rtx expand_shift (enum tree_code, enum machine_mode, rtx, tree, rtx,
|
extern rtx expand_shift (enum tree_code, enum machine_mode, rtx, tree, rtx,
|
int);
|
int);
|
extern rtx expand_divmod (int, enum tree_code, enum machine_mode, rtx, rtx,
|
extern rtx expand_divmod (int, enum tree_code, enum machine_mode, rtx, rtx,
|
rtx, int);
|
rtx, int);
|
#endif
|
#endif
|
|
|
extern void locate_and_pad_parm (enum machine_mode, tree, int, int, tree,
|
extern void locate_and_pad_parm (enum machine_mode, tree, int, int, tree,
|
struct args_size *,
|
struct args_size *,
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struct locate_and_pad_arg_data *);
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struct locate_and_pad_arg_data *);
|
|
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/* Return the CODE_LABEL rtx for a LABEL_DECL, creating it if necessary. */
|
/* Return the CODE_LABEL rtx for a LABEL_DECL, creating it if necessary. */
|
extern rtx label_rtx (tree);
|
extern rtx label_rtx (tree);
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|
|
/* As label_rtx, but additionally the label is placed on the forced label
|
/* As label_rtx, but additionally the label is placed on the forced label
|
list of its containing function (i.e. it is treated as reachable even
|
list of its containing function (i.e. it is treated as reachable even
|
if how is not obvious). */
|
if how is not obvious). */
|
extern rtx force_label_rtx (tree);
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extern rtx force_label_rtx (tree);
|
|
|
/* Indicate how an input argument register was promoted. */
|
/* Indicate how an input argument register was promoted. */
|
extern rtx promoted_input_arg (unsigned int, enum machine_mode *, int *);
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extern rtx promoted_input_arg (unsigned int, enum machine_mode *, int *);
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|
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/* Return an rtx like arg but sans any constant terms.
|
/* Return an rtx like arg but sans any constant terms.
|
Returns the original rtx if it has no constant terms.
|
Returns the original rtx if it has no constant terms.
|
The constant terms are added and stored via a second arg. */
|
The constant terms are added and stored via a second arg. */
|
extern rtx eliminate_constant_term (rtx, rtx *);
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extern rtx eliminate_constant_term (rtx, rtx *);
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|
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/* Convert arg to a valid memory address for specified machine mode,
|
/* Convert arg to a valid memory address for specified machine mode,
|
by emitting insns to perform arithmetic if nec. */
|
by emitting insns to perform arithmetic if nec. */
|
extern rtx memory_address (enum machine_mode, rtx);
|
extern rtx memory_address (enum machine_mode, rtx);
|
|
|
/* Like `memory_address' but pretend `flag_force_addr' is 0. */
|
/* Like `memory_address' but pretend `flag_force_addr' is 0. */
|
extern rtx memory_address_noforce (enum machine_mode, rtx);
|
extern rtx memory_address_noforce (enum machine_mode, rtx);
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|
|
/* Return a memory reference like MEMREF, but with its mode changed
|
/* Return a memory reference like MEMREF, but with its mode changed
|
to MODE and its address changed to ADDR.
|
to MODE and its address changed to ADDR.
|
(VOIDmode means don't change the mode.
|
(VOIDmode means don't change the mode.
|
NULL for ADDR means don't change the address.) */
|
NULL for ADDR means don't change the address.) */
|
extern rtx change_address (rtx, enum machine_mode, rtx);
|
extern rtx change_address (rtx, enum machine_mode, rtx);
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|
|
/* Return a memory reference like MEMREF, but with its mode changed
|
/* Return a memory reference like MEMREF, but with its mode changed
|
to MODE and its address offset by OFFSET bytes. */
|
to MODE and its address offset by OFFSET bytes. */
|
#define adjust_address(MEMREF, MODE, OFFSET) \
|
#define adjust_address(MEMREF, MODE, OFFSET) \
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adjust_address_1 (MEMREF, MODE, OFFSET, 1, 1)
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adjust_address_1 (MEMREF, MODE, OFFSET, 1, 1)
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|
|
/* Likewise, but the reference is not required to be valid. */
|
/* Likewise, but the reference is not required to be valid. */
|
#define adjust_address_nv(MEMREF, MODE, OFFSET) \
|
#define adjust_address_nv(MEMREF, MODE, OFFSET) \
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adjust_address_1 (MEMREF, MODE, OFFSET, 0, 1)
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adjust_address_1 (MEMREF, MODE, OFFSET, 0, 1)
|
|
|
/* Return a memory reference like MEMREF, but with its mode changed
|
/* Return a memory reference like MEMREF, but with its mode changed
|
to MODE and its address changed to ADDR, which is assumed to be
|
to MODE and its address changed to ADDR, which is assumed to be
|
increased by OFFSET bytes from MEMREF. */
|
increased by OFFSET bytes from MEMREF. */
|
#define adjust_automodify_address(MEMREF, MODE, ADDR, OFFSET) \
|
#define adjust_automodify_address(MEMREF, MODE, ADDR, OFFSET) \
|
adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 1)
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adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 1)
|
|
|
/* Likewise, but the reference is not required to be valid. */
|
/* Likewise, but the reference is not required to be valid. */
|
#define adjust_automodify_address_nv(MEMREF, MODE, ADDR, OFFSET) \
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#define adjust_automodify_address_nv(MEMREF, MODE, ADDR, OFFSET) \
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adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 0)
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adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 0)
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|
|
extern rtx adjust_address_1 (rtx, enum machine_mode, HOST_WIDE_INT, int, int);
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extern rtx adjust_address_1 (rtx, enum machine_mode, HOST_WIDE_INT, int, int);
|
extern rtx adjust_automodify_address_1 (rtx, enum machine_mode, rtx,
|
extern rtx adjust_automodify_address_1 (rtx, enum machine_mode, rtx,
|
HOST_WIDE_INT, int);
|
HOST_WIDE_INT, int);
|
|
|
/* Return a memory reference like MEMREF, but whose address is changed by
|
/* Return a memory reference like MEMREF, but whose address is changed by
|
adding OFFSET, an RTX, to it. POW2 is the highest power of two factor
|
adding OFFSET, an RTX, to it. POW2 is the highest power of two factor
|
known to be in OFFSET (possibly 1). */
|
known to be in OFFSET (possibly 1). */
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extern rtx offset_address (rtx, rtx, unsigned HOST_WIDE_INT);
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extern rtx offset_address (rtx, rtx, unsigned HOST_WIDE_INT);
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|
|
/* Definitions from emit-rtl.c */
|
/* Definitions from emit-rtl.c */
|
#include "emit-rtl.h"
|
#include "emit-rtl.h"
|
|
|
/* Return a memory reference like MEMREF, but with its mode widened to
|
/* Return a memory reference like MEMREF, but with its mode widened to
|
MODE and adjusted by OFFSET. */
|
MODE and adjusted by OFFSET. */
|
extern rtx widen_memory_access (rtx, enum machine_mode, HOST_WIDE_INT);
|
extern rtx widen_memory_access (rtx, enum machine_mode, HOST_WIDE_INT);
|
|
|
/* Return a memory reference like MEMREF, but which is known to have a
|
/* Return a memory reference like MEMREF, but which is known to have a
|
valid address. */
|
valid address. */
|
extern rtx validize_mem (rtx);
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extern rtx validize_mem (rtx);
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|
|
extern rtx use_anchored_address (rtx);
|
extern rtx use_anchored_address (rtx);
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|
|
/* Given REF, a MEM, and T, either the type of X or the expression
|
/* Given REF, a MEM, and T, either the type of X or the expression
|
corresponding to REF, set the memory attributes. OBJECTP is nonzero
|
corresponding to REF, set the memory attributes. OBJECTP is nonzero
|
if we are making a new object of this type. */
|
if we are making a new object of this type. */
|
extern void set_mem_attributes (rtx, tree, int);
|
extern void set_mem_attributes (rtx, tree, int);
|
|
|
/* Similar, except that BITPOS has not yet been applied to REF, so if
|
/* Similar, except that BITPOS has not yet been applied to REF, so if
|
we alter MEM_OFFSET according to T then we should subtract BITPOS
|
we alter MEM_OFFSET according to T then we should subtract BITPOS
|
expecting that it'll be added back in later. */
|
expecting that it'll be added back in later. */
|
extern void set_mem_attributes_minus_bitpos (rtx, tree, int, HOST_WIDE_INT);
|
extern void set_mem_attributes_minus_bitpos (rtx, tree, int, HOST_WIDE_INT);
|
|
|
/* Assemble the static constant template for function entry trampolines. */
|
/* Assemble the static constant template for function entry trampolines. */
|
extern rtx assemble_trampoline_template (void);
|
extern rtx assemble_trampoline_template (void);
|
|
|
/* Copy given rtx to a new temp reg and return that. */
|
/* Copy given rtx to a new temp reg and return that. */
|
extern rtx copy_to_reg (rtx);
|
extern rtx copy_to_reg (rtx);
|
|
|
/* Like copy_to_reg but always make the reg Pmode. */
|
/* Like copy_to_reg but always make the reg Pmode. */
|
extern rtx copy_addr_to_reg (rtx);
|
extern rtx copy_addr_to_reg (rtx);
|
|
|
/* Like copy_to_reg but always make the reg the specified mode MODE. */
|
/* Like copy_to_reg but always make the reg the specified mode MODE. */
|
extern rtx copy_to_mode_reg (enum machine_mode, rtx);
|
extern rtx copy_to_mode_reg (enum machine_mode, rtx);
|
|
|
/* Copy given rtx to given temp reg and return that. */
|
/* Copy given rtx to given temp reg and return that. */
|
extern rtx copy_to_suggested_reg (rtx, rtx, enum machine_mode);
|
extern rtx copy_to_suggested_reg (rtx, rtx, enum machine_mode);
|
|
|
/* Copy a value to a register if it isn't already a register.
|
/* Copy a value to a register if it isn't already a register.
|
Args are mode (in case value is a constant) and the value. */
|
Args are mode (in case value is a constant) and the value. */
|
extern rtx force_reg (enum machine_mode, rtx);
|
extern rtx force_reg (enum machine_mode, rtx);
|
|
|
/* Return given rtx, copied into a new temp reg if it was in memory. */
|
/* Return given rtx, copied into a new temp reg if it was in memory. */
|
extern rtx force_not_mem (rtx);
|
extern rtx force_not_mem (rtx);
|
|
|
/* Return mode and signedness to use when object is promoted. */
|
/* Return mode and signedness to use when object is promoted. */
|
extern enum machine_mode promote_mode (tree, enum machine_mode, int *, int);
|
extern enum machine_mode promote_mode (tree, enum machine_mode, int *, int);
|
|
|
/* Remove some bytes from the stack. An rtx says how many. */
|
/* Remove some bytes from the stack. An rtx says how many. */
|
extern void adjust_stack (rtx);
|
extern void adjust_stack (rtx);
|
|
|
/* Add some bytes to the stack. An rtx says how many. */
|
/* Add some bytes to the stack. An rtx says how many. */
|
extern void anti_adjust_stack (rtx);
|
extern void anti_adjust_stack (rtx);
|
|
|
/* This enum is used for the following two functions. */
|
/* This enum is used for the following two functions. */
|
enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
|
enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
|
|
|
/* Save the stack pointer at the specified level. */
|
/* Save the stack pointer at the specified level. */
|
extern void emit_stack_save (enum save_level, rtx *, rtx);
|
extern void emit_stack_save (enum save_level, rtx *, rtx);
|
|
|
/* Restore the stack pointer from a save area of the specified level. */
|
/* Restore the stack pointer from a save area of the specified level. */
|
extern void emit_stack_restore (enum save_level, rtx, rtx);
|
extern void emit_stack_restore (enum save_level, rtx, rtx);
|
|
|
/* Invoke emit_stack_save for the nonlocal_goto_save_area. */
|
/* Invoke emit_stack_save for the nonlocal_goto_save_area. */
|
extern void update_nonlocal_goto_save_area (void);
|
extern void update_nonlocal_goto_save_area (void);
|
|
|
/* Allocate some space on the stack dynamically and return its address. An rtx
|
/* Allocate some space on the stack dynamically and return its address. An rtx
|
says how many bytes. */
|
says how many bytes. */
|
extern rtx allocate_dynamic_stack_space (rtx, rtx, int);
|
extern rtx allocate_dynamic_stack_space (rtx, rtx, int);
|
|
|
/* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive.
|
/* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive.
|
FIRST is a constant and size is a Pmode RTX. These are offsets from the
|
FIRST is a constant and size is a Pmode RTX. These are offsets from the
|
current stack pointer. STACK_GROWS_DOWNWARD says whether to add or
|
current stack pointer. STACK_GROWS_DOWNWARD says whether to add or
|
subtract from the stack. If SIZE is constant, this is done
|
subtract from the stack. If SIZE is constant, this is done
|
with a fixed number of probes. Otherwise, we must make a loop. */
|
with a fixed number of probes. Otherwise, we must make a loop. */
|
extern void probe_stack_range (HOST_WIDE_INT, rtx);
|
extern void probe_stack_range (HOST_WIDE_INT, rtx);
|
|
|
/* Return an rtx that refers to the value returned by a library call
|
/* Return an rtx that refers to the value returned by a library call
|
in its original home. This becomes invalid if any more code is emitted. */
|
in its original home. This becomes invalid if any more code is emitted. */
|
extern rtx hard_libcall_value (enum machine_mode);
|
extern rtx hard_libcall_value (enum machine_mode);
|
|
|
/* Return the mode desired by operand N of a particular bitfield
|
/* Return the mode desired by operand N of a particular bitfield
|
insert/extract insn, or MAX_MACHINE_MODE if no such insn is
|
insert/extract insn, or MAX_MACHINE_MODE if no such insn is
|
available. */
|
available. */
|
|
|
enum extraction_pattern { EP_insv, EP_extv, EP_extzv };
|
enum extraction_pattern { EP_insv, EP_extv, EP_extzv };
|
extern enum machine_mode
|
extern enum machine_mode
|
mode_for_extraction (enum extraction_pattern, int);
|
mode_for_extraction (enum extraction_pattern, int);
|
|
|
extern rtx store_bit_field (rtx, unsigned HOST_WIDE_INT,
|
extern rtx store_bit_field (rtx, unsigned HOST_WIDE_INT,
|
unsigned HOST_WIDE_INT, enum machine_mode, rtx);
|
unsigned HOST_WIDE_INT, enum machine_mode, rtx);
|
extern rtx extract_bit_field (rtx, unsigned HOST_WIDE_INT,
|
extern rtx extract_bit_field (rtx, unsigned HOST_WIDE_INT,
|
unsigned HOST_WIDE_INT, int, rtx,
|
unsigned HOST_WIDE_INT, int, rtx,
|
enum machine_mode, enum machine_mode);
|
enum machine_mode, enum machine_mode);
|
extern rtx expand_mult (enum machine_mode, rtx, rtx, rtx, int);
|
extern rtx expand_mult (enum machine_mode, rtx, rtx, rtx, int);
|
extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, int);
|
extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, int);
|
|
|
extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
|
extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
|
extern int safe_from_p (rtx, tree, int);
|
extern int safe_from_p (rtx, tree, int);
|
|
|
/* Call this once to initialize the contents of the optabs
|
/* Call this once to initialize the contents of the optabs
|
appropriately for the current target machine. */
|
appropriately for the current target machine. */
|
extern void init_optabs (void);
|
extern void init_optabs (void);
|
extern void init_all_optabs (void);
|
extern void init_all_optabs (void);
|
|
|
/* Call this to initialize an optab function entry. */
|
/* Call this to initialize an optab function entry. */
|
extern rtx init_one_libfunc (const char *);
|
extern rtx init_one_libfunc (const char *);
|
|
|
extern int vector_mode_valid_p (enum machine_mode);
|
extern int vector_mode_valid_p (enum machine_mode);
|
|
|
#endif /* GCC_EXPR_H */
|
#endif /* GCC_EXPR_H */
|
|
|
