1/* Exported functions from emit-rtl.c
2   Copyright (C) 2004, 2007, 2008, 2010 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3.  If not see
18<http://www.gnu.org/licenses/>.  */
19
20#ifndef GCC_EMIT_RTL_H
21#define GCC_EMIT_RTL_H
22
23/* Set the alias set of MEM to SET.  */
24extern void set_mem_alias_set (rtx, alias_set_type);
25
26/* Set the alignment of MEM to ALIGN bits.  */
27extern void set_mem_align (rtx, unsigned int);
28
29/* Set the address space of MEM to ADDRSPACE.  */
30extern void set_mem_addr_space (rtx, addr_space_t);
31
32/* Set the expr for MEM to EXPR.  */
33extern void set_mem_expr (rtx, tree);
34
35/* Set the offset for MEM to OFFSET.  */
36extern void set_mem_offset (rtx, rtx);
37
38/* Set the size for MEM to SIZE.  */
39extern void set_mem_size (rtx, rtx);
40
41/* Set the attributes for MEM appropriate for a spill slot.  */
42extern void set_mem_attrs_for_spill (rtx);
43extern tree get_spill_slot_decl (bool);
44
45/* Return a memory reference like MEMREF, but with its address changed to
46   ADDR.  The caller is asserting that the actual piece of memory pointed
47   to is the same, just the form of the address is being changed, such as
48   by putting something into a register.  */
49extern rtx replace_equiv_address (rtx, rtx);
50
51/* Likewise, but the reference is not required to be valid.  */
52extern rtx replace_equiv_address_nv (rtx, rtx);
53
54extern rtx gen_blockage (void);
55extern rtvec gen_rtvec (int, ...);
56extern rtx copy_insn_1 (rtx);
57extern rtx copy_insn (rtx);
58extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode);
59extern rtx emit_copy_of_insn_after (rtx, rtx);
60extern void set_reg_attrs_from_value (rtx, rtx);
61extern void set_reg_attrs_for_parm (rtx, rtx);
62extern void set_reg_attrs_for_decl_rtl (tree t, rtx x);
63extern void adjust_reg_mode (rtx, enum machine_mode);
64extern int mem_expr_equal_p (const_tree, const_tree);
65
66/* Return the first insn of the current sequence or current function.  */
67
68static inline rtx
69get_insns (void)
70{
71  return crtl->emit.x_first_insn;
72}
73
74/* Specify a new insn as the first in the chain.  */
75
76static inline void
77set_first_insn (rtx insn)
78{
79  gcc_checking_assert (!insn || !PREV_INSN (insn));
80  crtl->emit.x_first_insn = insn;
81}
82
83/* Return the last insn emitted in current sequence or current function.  */
84
85static inline rtx
86get_last_insn (void)
87{
88  return crtl->emit.x_last_insn;
89}
90
91/* Specify a new insn as the last in the chain.  */
92
93static inline void
94set_last_insn (rtx insn)
95{
96  gcc_checking_assert (!insn || !NEXT_INSN (insn));
97  crtl->emit.x_last_insn = insn;
98}
99
100/* Return a number larger than any instruction's uid in this function.  */
101
102static inline int
103get_max_uid (void)
104{
105  return crtl->emit.x_cur_insn_uid;
106}
107#endif /* GCC_EMIT_RTL_H */
108