Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
/* The default branch cost is 1. */
#ifndef BRANCH_COST
perform the operation described by CODE and MODE. */
extern int have_insn_for PARAMS ((enum rtx_code, enum machine_mode));
-/* 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 PARAMS ((rtx, rtx, rtx, rtx));
/* Create but don't emit one rtl instruction to perform certain operations.
/* Emit a pair of rtl insns to compare two rtx's and to jump
to a label if the comparison is true. */
extern void emit_cmp_and_jump_insns PARAMS ((rtx, rtx, enum rtx_code, rtx,
- enum machine_mode, int,
- unsigned int, rtx));
+ enum machine_mode, int, rtx));
/* Generate code to indirectly jump to a location given in the rtx LOC. */
extern void emit_indirect_jump PARAMS ((rtx));
extern void record_alias_subset PARAMS ((HOST_WIDE_INT,
HOST_WIDE_INT));
extern HOST_WIDE_INT new_alias_set PARAMS ((void));
+extern int can_address_p PARAMS ((tree));
\f
/* Functions from expr.c: */
rtx, int));
/* Emit code to move a block Y to a block X. */
-extern rtx emit_block_move PARAMS ((rtx, rtx, rtx, unsigned int));
+extern rtx emit_block_move PARAMS ((rtx, rtx, rtx));
/* Copy all or part of a value X into registers starting at REGNO.
The number of registers to be filled is NREGS. */
/* Load a BLKmode value into non-consecutive registers represented by a
PARALLEL. */
-extern void emit_group_load PARAMS ((rtx, rtx, int, unsigned int));
+extern void emit_group_load PARAMS ((rtx, rtx, int));
/* Store a BLKmode value from non-consecutive registers represented by a
PARALLEL. */
-extern void emit_group_store PARAMS ((rtx, rtx, int, unsigned int));
+extern void emit_group_store PARAMS ((rtx, rtx, int));
#ifdef TREE_CODE
-/* Copy BLKmode object from a set of registers. */
+/* Copy BLKmode object from a set of registers. */
extern rtx copy_blkmode_from_reg PARAMS ((rtx,rtx,tree));
#endif
extern void use_group_regs PARAMS ((rtx *, rtx));
/* Write zeros through the storage of OBJECT.
- If OBJECT has BLKmode, SIZE is its length in bytes and ALIGN is its
- alignment. */
-extern rtx clear_storage PARAMS ((rtx, rtx, unsigned int));
+ If OBJECT has BLKmode, SIZE is its length in bytes. */
+extern rtx clear_storage PARAMS ((rtx, rtx));
/* Return non-zero if it is desirable to store LEN bytes generated by
CONSTFUN with several move instructions by store_by_pieces
unsigned int, 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 rtx expand_assignment PARAMS ((tree, tree, int, int));
/* Generate code for computing expression EXP,
Useful after calling expand_expr with 1 as sum_ok. */
extern rtx force_operand PARAMS ((rtx, rtx));
-#ifdef TREE_CODE
+/* Return an object on the placeholder list that matches EXP, a
+ PLACEHOLDER_EXPR. An object "matches" if it is of the type of the
+ PLACEHOLDER_EXPR or a pointer type to it. For further information, see
+ tree.def. If no such object is found, abort. If PLIST is nonzero, it is
+ a location which initially points to a starting location in the
+ placeholder list (zero means start of the list) and where a pointer into
+ the placeholder list at which the object is found is placed. */
+extern tree find_placeholder PARAMS ((tree, tree *));
+
/* Generate code for computing expression EXP.
An rtx for the computed value is returned. The value is never null.
In the case of a void EXP, const0_rtx is returned. */
extern rtx expand_expr PARAMS ((tree, rtx, enum machine_mode,
enum expand_modifier));
-#endif
/* At the start of a function, record that we have no previously-pushed
arguments waiting to be popped. */
/* Generate rtl to compare two rtx's, will call emit_cmp_insn. */
extern rtx compare_from_rtx PARAMS ((rtx, rtx, enum rtx_code, int,
- enum machine_mode, rtx, unsigned int));
+ enum machine_mode, rtx));
extern void do_compare_rtx_and_jump PARAMS ((rtx, rtx, enum rtx_code, int,
enum machine_mode, rtx,
- unsigned int, rtx, rtx));
+ rtx, rtx));
/* Two different ways of generating switch statements. */
extern int try_casesi PARAMS ((tree, tree, tree, tree, rtx, rtx));
/* Like `memory_address' but pretent `flag_force_addr' is 0. */
extern rtx memory_address_noforce PARAMS ((enum machine_mode, rtx));
+/* Set the alias set of MEM to SET. */
+extern void set_mem_alias_set PARAMS ((rtx, HOST_WIDE_INT));
+
+/* Set the alignment of MEM to ALIGN bits. */
+extern void set_mem_align PARAMS ((rtx, unsigned int));
+
+/* Set the DECL for MEM to DECL. */
+extern void set_mem_decl PARAMS ((rtx, tree));
+
/* Return a memory reference like MEMREF, but with its mode changed
to MODE and its address changed to ADDR.
(VOIDmode means don't change the mode.
- NULL for ADDR means don't change the address.)
- VALIDATE is nonzero if the returned memory location is required to be
- valid. */
-extern rtx change_address_1 PARAMS ((rtx, enum machine_mode, rtx, int));
-
-#define change_address(MEMREF, MODE, ADDR) \
- change_address_1 (MEMREF, MODE, ADDR, 1)
+ NULL for ADDR means don't change the address.) */
+extern rtx change_address PARAMS ((rtx, enum machine_mode, rtx));
/* Return a memory reference like MEMREF, but with its mode changed
to MODE and its address offset by OFFSET bytes. */
-extern rtx adjust_address PARAMS ((rtx, enum machine_mode, HOST_WIDE_INT));
+#define adjust_address(MEMREF, MODE, OFFSET) \
+ adjust_address_1 (MEMREF, MODE, OFFSET, 1, 1)
/* Likewise, but the reference is not required to be valid. */
-extern rtx adjust_address_nv PARAMS ((rtx, enum machine_mode, HOST_WIDE_INT));
+#define adjust_address_nv(MEMREF, MODE, OFFSET) \
+ adjust_address_1 (MEMREF, MODE, OFFSET, 0, 1)
+
+/* Return a memory reference like MEMREF, but with its mode changed
+ to MODE and its address changed to ADDR, which is assumed to be
+ increased by OFFSET bytes from MEMREF. */
+#define adjust_automodify_address(MEMREF, MODE, ADDR, OFFSET) \
+ adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 1)
+
+/* Likewise, but the reference is not required to be valid. */
+#define adjust_automodify_address_nv(MEMREF, MODE, ADDR, OFFSET) \
+ adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 0)
+
+extern rtx adjust_address_1 PARAMS ((rtx, enum machine_mode, HOST_WIDE_INT,
+ int, int));
+extern rtx adjust_automodify_address_1 PARAMS ((rtx, enum machine_mode,
+ rtx, HOST_WIDE_INT, int));
+
+/* 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
+ known to be in OFFSET (possibly 1). */
+extern rtx offset_address PARAMS ((rtx, rtx, HOST_WIDE_INT));
/* Return a memory reference like MEMREF, but with its address changed to
ADDR. The caller is asserting that the actual piece of memory pointed
extern rtx store_bit_field PARAMS ((rtx, unsigned HOST_WIDE_INT,
unsigned HOST_WIDE_INT,
- enum machine_mode, rtx,
- unsigned int, HOST_WIDE_INT));
+ enum machine_mode, rtx, HOST_WIDE_INT));
extern rtx extract_bit_field PARAMS ((rtx, unsigned HOST_WIDE_INT,
unsigned HOST_WIDE_INT, int, rtx,
enum machine_mode, enum machine_mode,
- unsigned int, HOST_WIDE_INT));
+ HOST_WIDE_INT));
extern rtx expand_mult PARAMS ((enum machine_mode, rtx, rtx, rtx, int));
extern rtx expand_mult_add PARAMS ((rtx, rtx, rtx, rtx,enum machine_mode, int));
extern rtx expand_mult_highpart_adjust PARAMS ((enum machine_mode, rtx, rtx, rtx, rtx, int));
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