1/* Definitions of target machine for GNU compiler, for IBM RS/6000.
2   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005
3   Free Software Foundation, Inc.
4   Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
5
6   This file is part of GCC.
7
8   GCC is free software; you can redistribute it and/or modify it
9   under the terms of the GNU General Public License as published
10   by the Free Software Foundation; either version 2, or (at your
11   option) any later version.
12
13   GCC is distributed in the hope that it will be useful, but WITHOUT
14   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16   License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with GCC; see the file COPYING.  If not, write to the
20   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
21   MA 02110-1301, USA.  */
22
23#ifndef GCC_RS6000_PROTOS_H
24#define GCC_RS6000_PROTOS_H
25
26/* Declare functions in rs6000.c */
27
28#ifdef RTX_CODE
29
30#ifdef TREE_CODE
31extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, int, int, int);
32extern void rs6000_va_start (tree, rtx);
33#endif /* TREE_CODE */
34
35extern bool easy_altivec_constant (rtx, enum machine_mode);
36extern bool macho_lo_sum_memory_operand (rtx, enum machine_mode);
37extern int num_insns_constant (rtx, enum machine_mode);
38extern int num_insns_constant_wide (HOST_WIDE_INT);
39extern int small_data_operand (rtx, enum machine_mode);
40extern bool toc_relative_expr_p (rtx);
41extern bool invalid_e500_subreg (rtx, enum machine_mode);
42extern void validate_condition_mode (enum rtx_code, enum machine_mode);
43extern bool legitimate_constant_pool_address_p (rtx);
44extern bool legitimate_indirect_address_p (rtx, int);
45
46extern rtx rs6000_got_register (rtx);
47extern rtx find_addr_reg (rtx);
48extern rtx gen_easy_altivec_constant (rtx);
49extern const char *output_vec_const_move (rtx *);
50extern void rs6000_expand_vector_init (rtx, rtx);
51extern void rs6000_expand_vector_set (rtx, rtx, int);
52extern void rs6000_expand_vector_extract (rtx, rtx, int);
53extern void build_mask64_2_operands (rtx, rtx *);
54extern int expand_block_clear (rtx[]);
55extern int expand_block_move (rtx[]);
56extern const char * rs6000_output_load_multiple (rtx[]);
57extern int includes_lshift_p (rtx, rtx);
58extern int includes_rshift_p (rtx, rtx);
59extern int includes_rldic_lshift_p (rtx, rtx);
60extern int includes_rldicr_lshift_p (rtx, rtx);
61extern int insvdi_rshift_rlwimi_p (rtx, rtx, rtx);
62extern int registers_ok_for_quad_peep (rtx, rtx);
63extern int mems_ok_for_quad_peep (rtx, rtx);
64extern bool gpr_or_gpr_p (rtx, rtx);
65extern enum reg_class rs6000_secondary_reload_class (enum reg_class,
66						     enum machine_mode, rtx);
67extern int ccr_bit (rtx, int);
68extern int extract_MB (rtx);
69extern int extract_ME (rtx);
70extern void rs6000_output_function_entry (FILE *, const char *);
71extern void print_operand (FILE *, rtx, int);
72extern void print_operand_address (FILE *, rtx);
73extern enum rtx_code rs6000_reverse_condition (enum machine_mode,
74					       enum rtx_code);
75extern void rs6000_emit_sCOND (enum rtx_code, rtx);
76extern void rs6000_emit_cbranch (enum rtx_code, rtx);
77extern char * output_cbranch (rtx, const char *, int, rtx);
78extern char * output_e500_flip_gt_bit (rtx, rtx);
79extern rtx rs6000_emit_set_const (rtx, enum machine_mode, rtx, int);
80extern int rs6000_emit_cmove (rtx, rtx, rtx, rtx);
81extern int rs6000_emit_vector_cond_expr (rtx, rtx, rtx, rtx, rtx, rtx);
82extern void rs6000_emit_minmax (rtx, enum rtx_code, rtx, rtx);
83extern void rs6000_emit_sync (enum rtx_code, enum machine_mode,
84			      rtx, rtx, rtx, rtx, bool);
85extern void rs6000_split_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx);
86extern void rs6000_split_compare_and_swap (rtx, rtx, rtx, rtx, rtx);
87extern void rs6000_expand_compare_and_swapqhi (rtx, rtx, rtx, rtx);
88extern void rs6000_split_compare_and_swapqhi (rtx, rtx, rtx, rtx, rtx, rtx);
89extern void rs6000_split_lock_test_and_set (rtx, rtx, rtx, rtx);
90extern void rs6000_emit_swdivsf (rtx, rtx, rtx);
91extern void rs6000_emit_swdivdf (rtx, rtx, rtx);
92extern void output_toc (FILE *, rtx, int, enum machine_mode);
93extern void rs6000_initialize_trampoline (rtx, rtx, rtx);
94extern rtx rs6000_longcall_ref (rtx);
95extern void rs6000_fatal_bad_address (rtx);
96extern rtx create_TOC_reference (rtx);
97extern void rs6000_split_multireg_move (rtx, rtx);
98extern void rs6000_emit_move (rtx, rtx, enum machine_mode);
99extern rtx rs6000_legitimize_address (rtx, rtx, enum machine_mode);
100extern rtx rs6000_legitimize_reload_address (rtx, enum machine_mode,
101					     int, int, int, int *);
102extern int rs6000_legitimate_address (enum machine_mode, rtx, int);
103extern bool rs6000_legitimate_offset_address_p (enum machine_mode, rtx, int);
104extern bool rs6000_mode_dependent_address (rtx);
105extern bool rs6000_offsettable_memref_p (rtx);
106extern rtx rs6000_return_addr (int, rtx);
107extern void rs6000_output_symbol_ref (FILE*, rtx);
108extern HOST_WIDE_INT rs6000_initial_elimination_offset (int, int);
109
110extern rtx rs6000_machopic_legitimize_pic_address (rtx, enum machine_mode,
111						   rtx);
112#endif /* RTX_CODE */
113
114#ifdef TREE_CODE
115extern unsigned int rs6000_special_round_type_align (tree, unsigned int,
116						     unsigned int);
117extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
118				  tree, int, int);
119extern int function_arg_boundary (enum machine_mode, tree);
120extern rtx function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree, int);
121extern tree altivec_resolve_overloaded_builtin (tree, tree);
122extern rtx rs6000_function_value (tree, tree);
123extern rtx rs6000_libcall_value (enum machine_mode);
124extern rtx rs6000_va_arg (tree, tree);
125extern int function_ok_for_sibcall (tree);
126extern void rs6000_elf_declare_function_name (FILE *, const char *, tree);
127extern bool rs6000_elf_in_small_data_p (tree);
128#ifdef ARGS_SIZE_RTX
129/* expr.h defines ARGS_SIZE_RTX and `enum direction' */
130extern enum direction function_arg_padding (enum machine_mode, tree);
131#endif /* ARGS_SIZE_RTX */
132
133#endif /* TREE_CODE */
134
135extern void optimization_options (int, int);
136extern void rs6000_override_options (const char *);
137extern int direct_return (void);
138extern int first_reg_to_save (void);
139extern int first_fp_reg_to_save (void);
140extern void output_ascii (FILE *, const char *, int);
141extern void rs6000_gen_section_name (char **, const char *, const char *);
142extern void output_function_profiler (FILE *, int);
143extern void output_profile_hook  (int);
144extern int rs6000_trampoline_size (void);
145extern int get_TOC_alias_set (void);
146extern void rs6000_emit_prologue (void);
147extern void rs6000_emit_load_toc_table (int);
148extern void rs6000_aix_emit_builtin_unwind_init (void);
149extern unsigned int rs6000_dbx_register_number (unsigned int);
150extern void rs6000_emit_epilogue (int);
151extern void rs6000_emit_eh_reg_restore (rtx, rtx);
152extern const char * output_isel (rtx *);
153extern int rs6000_register_move_cost (enum machine_mode,
154				      enum reg_class, enum reg_class);
155extern int rs6000_memory_move_cost (enum machine_mode, enum reg_class, int);
156extern bool rs6000_tls_referenced_p (rtx);
157extern int rs6000_hard_regno_nregs (int, enum machine_mode);
158extern void rs6000_conditional_register_usage (void);
159
160/* Declare functions in rs6000-c.c */
161
162extern void rs6000_pragma_longcall (struct cpp_reader *);
163extern void rs6000_cpu_cpp_builtins (struct cpp_reader *);
164
165#if TARGET_MACHO
166char *output_call (rtx, rtx *, int, int);
167#endif
168
169extern bool rs6000_hard_regno_mode_ok_p[][FIRST_PSEUDO_REGISTER];
170#endif  /* rs6000-protos.h */
171