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1.1 root 1: /* Compilation switch flag definitions for GNU CC.
2: Copyright (C) 1987 Free Software Foundation, Inc.
3:
4: This file is part of GNU CC.
5:
6: GNU CC is distributed in the hope that it will be useful,
7: but WITHOUT ANY WARRANTY. No author or distributor
8: accepts responsibility to anyone for the consequences of using it
9: or for whether it serves any particular purpose or works at all,
10: unless he says so in writing. Refer to the GNU CC General Public
11: License for full details.
12:
13: Everyone is granted permission to copy, modify and redistribute
14: GNU CC, but only under the conditions described in the
15: GNU CC General Public License. A copy of this license is
16: supposed to have been given to you along with GNU CC so you
17: can know your rights and responsibilities. It should be in a
18: file named COPYING. Among other things, the copyright notice
19: and this notice must be preserved on all copies. */
20:
21: /* 1 => write gdb debugging output (using symout.c). -g
22: 2 => write dbx debugging output (using dbxout.c). -G */
23:
24: extern int write_symbols;
25:
26: /* Nonzero means do optimizations. -opt. */
27:
28: extern int optimize;
29:
30: /* Nonzero means do stupid register allocation. -noreg.
31: This and `optimize' are controlled by different switches in cc1,
32: but normally cc controls them both with the -O switch. */
33:
34: extern int obey_regdecls;
35:
36: /* Don't print functions as they are compiled and don't print
37: times taken by the various passes. -quiet. */
38:
39: extern int quiet_flag;
40:
41: /* Don't print warning messages. -w. */
42:
43: extern int inhibit_warnings;
44:
45: /* Do print extra warnings (such as for uninitialized variables). -W. */
46:
47: extern int extra_warnings;
48:
49: /* Nonzero if generating code to do profiling. */
50:
51: extern int profile_flag;
52:
53: /* Nonzero for -pedantic switch: warn about anything
54: that standard C forbids. */
55:
56: extern int pedantic;
57:
58: /* Now the symbols that are set with `-f' switches. */
59:
60: /* Nonzero for -fforce-mem: load memory value into a register
61: before arithmetic on it. This makes better cse but slower compilation. */
62:
63: extern int flag_force_mem;
64:
65: /* Nonzero for -fforce-addr: load memory address into a register before
66: reference to memory. This makes better cse but slower compilation. */
67:
68: extern int flag_force_addr;
69:
70: /* Nonzero for -fdefer-pop: don't pop args after each function call;
71: instead save them up to pop many calls' args with one insns. */
72:
73: extern int flag_defer_pop;
74:
75: /* Nonzero for -ffloat-store: don't allocate floats and doubles
76: in extended-precision registers. */
77:
78: extern int flag_float_store;
79:
80: /* Nonzero for -fcombine-regs:
81: allow instruction combiner to combine an insn
82: that just copies one reg to another. */
83:
84: extern int flag_combine_regs;
85:
86: /* Nonzero for -fwritable-strings:
87: store string constants in data segment and don't uniquize them. */
88:
89: extern int flag_writable_strings;
90:
91: /* Nonzero means don't put addresses of constant functions in registers.
92: Used for compiling the Unix kernel, where strange substitutions are
93: done on the assembly output. */
94:
95: extern int flag_no_function_cse;
96:
97: /* Nonzero for -fomit-frame-pointer:
98: don't make a frame pointer in simple functions that don't require one. */
99:
100: extern int flag_omit_frame_pointer;
101:
102: /* This isn't a flag, but everyone who needs flag_omit_frame_pointer
103: also needs this.
104: Nonzero means current function must be given a frame pointer.
105: Set in stmt.c if anything is allocated on the stack there.
106: Set in reload1.c if anything is allocated on the stack there. */
107:
108: extern int frame_pointer_needed;
109:
110: /* Nonzero to inhibit use of define_optimization peephole opts. */
111:
112: extern int flag_no_peephole;
113:
114: /* Nonzero means `char' should be signed. */
115:
116: extern int flag_signed_char;
117:
118: /* Nonzero means allow type mismatches in conditional expressions;
119: just make their values `void'. */
120:
121: extern int flag_cond_mismatch;
122:
123: /* Nonzero means don't recognize the keyword `asm'. */
124:
125: extern int flag_no_asm;
126:
127: /* Nonzero means warn about implicit declarations. */
128:
129: extern int warn_implicit;
130:
131: /* Nonzero means warn about function definitions that default the return type
132: or that use a null return and have a return-type other than void. */
133:
134: extern int warn_return_type;
135:
136: /* Nonzero means do some things the same way PCC does. */
137:
138: extern int flag_traditional;
139:
140: /* Nonzero means all references through pointers are volatile. */
141:
142: extern int flag_volatile;
143:
144: /* Nonzero means make functions that look like good inline candidates
145: go inline. */
146:
147: extern int flag_inline_functions;
148:
149: /* Nonzero for -fkeep-inline-functions: even if we make a function
150: go inline everywhere, keep its defintion around for debugging
151: purposes. */
152:
153: extern int flag_keep_inline_functions;
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