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1.1 root 1: /* Declarations for insn-output.c. These functions are defined in recog.c,
2: final.c, and varasm.c.
3: Copyright (C) 1987, 1991 Free Software Foundation, Inc.
4:
5: This file is part of GNU CC.
6:
7: GNU CC is free software; you can redistribute it and/or modify
8: it under the terms of the GNU General Public License as published by
9: the Free Software Foundation; either version 2, or (at your option)
10: any later version.
11:
12: GNU CC is distributed in the hope that it will be useful,
13: but WITHOUT ANY WARRANTY; without even the implied warranty of
14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: GNU General Public License for more details.
16:
17: You should have received a copy of the GNU General Public License
18: along with GNU CC; see the file COPYING. If not, write to
19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
20:
21: /* Output a string of assembler code, substituting insn operands.
22: Defined in final.c. */
23: extern void output_asm_insn ();
24:
25: /* Output a string of assembler code, substituting numbers, strings
26: and fixed syntactic prefixes. */
27: extern void asm_fprintf ();
28:
29: /* Replace a SUBREG with a REG or a MEM, based on the thing it is a
30: subreg of. */
31: extern rtx alter_subreg ();
32:
33: /* When outputting assembler code, indicates which alternative
34: of the constraints was actually satisfied. */
35: extern int which_alternative;
36:
37: /* When outputting delayed branch sequences, this rtx holds the
38: sequence being output. It is null when no delayed branch
39: sequence is being output, so it can be used as a test in the
40: insn output code.
41:
42: This variable is defined in final.c. */
43: extern rtx final_sequence;
44:
45: /* Number of bytes of args popped by function being compiled on its return.
46: Zero if no bytes are to be popped.
47: May affect compilation of return insn or of function epilogue. */
48:
49: extern int current_function_pops_args;
50:
51: /* Nonzero if function being compiled needs to be given an address
52: where the value should be stored. */
53:
54: extern int current_function_returns_struct;
55:
56: /* Nonzero if function being compiled needs to
57: return the address of where it has put a structure value. */
58:
59: extern int current_function_returns_pcc_struct;
60:
61: /* Nonzero if function being compiled needs to be passed a static chain. */
62:
63: extern int current_function_needs_context;
64:
65: /* Nonzero if function being compiled can call setjmp. */
66:
67: extern int current_function_calls_setjmp;
68:
69: /* Nonzero if function being compiled can call longjmp. */
70:
71: extern int current_function_calls_longjmp;
72:
73: /* Nonzero if function being compiled can call alloca,
74: either as a subroutine or builtin. */
75:
76: extern int current_function_calls_alloca;
77:
78: /* Nonzero if function being compiled receives nonlocal gotos
79: from nested functions. */
80:
81: extern int current_function_has_nonlocal_label;
82:
83: /* Nonzero if function being compiled contains nested functions. */
84:
85: extern int current_function_contains_functions;
86:
87: /* Nonzero if the current function returns a pointer type */
88:
89: extern int current_function_returns_pointer;
90:
91: /* If function's args have a fixed size, this is that size, in bytes.
92: Otherwise, it is -1.
93: May affect compilation of return insn or of function epilogue. */
94:
95: extern int current_function_args_size;
96:
97: /* # bytes the prologue should push and pretend that the caller pushed them.
98: The prologue must do this, but only if parms can be passed in registers. */
99:
100: extern int current_function_pretend_args_size;
101:
102: /* # of bytes of outgoing arguments required to be pushed by the prologue.
103: If this is non-zero, it means that ACCUMULATE_OUTGOING_ARGS was defined
104: and no stack adjusts will be done on function calls. */
105:
106: extern int current_function_outgoing_args_size;
107:
108: /* Nonzero if current function uses varargs.h or equivalent.
109: Zero for functions that use stdarg.h. */
110:
111: extern int current_function_varargs;
112:
113: /* Quantities of various kinds of registers
114: used for the current function's args. */
115:
116: extern CUMULATIVE_ARGS current_function_args_info;
117:
118: /* Name of function now being compiled. */
119:
120: extern char *current_function_name;
121:
122: /* If non-zero, an RTL expression for that location at which the current
123: function returns its result. Usually equal to
124: DECL_RTL (DECL_RESULT (current_function_decl)). */
125:
126: extern rtx current_function_return_rtx;
127:
128: /* If some insns can be deferred to the delay slots of the epilogue, the
129: delay list for them is recorded here. */
130:
131: extern rtx current_function_epilogue_delay_list;
132:
133: /* Nonzero means generate position-independent code.
134: This is not fully implemented yet. */
135:
136: extern int flag_pic;
137:
138: /* This is nonzero if the current function uses pic_offset_table_rtx. */
139: extern int current_function_uses_pic_offset_table;
140:
141: /* The line number of the beginning of the current function.
142: sdbout.c needs this so that it can output relative linenumbers. */
143:
144: #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */
145: extern int sdb_begin_function_line;
146: #endif
147:
148: /* File in which assembler code is being written. */
149:
150: #ifdef BUFSIZ /* The hope is that any kind of stdio.h must define BUFSIZ. */
151: extern FILE *asm_out_file;
152: #endif
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