V10/cmd/gcc/flags.h

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/* Compilation switch flag definitions for GNU CC.
   Copyright (C) 1987 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY.  No author or distributor
accepts responsibility to anyone for the consequences of using it
or for whether it serves any particular purpose or works at all,
unless he says so in writing.  Refer to the GNU CC General Public
License for full details.

Everyone is granted permission to copy, modify and redistribute
GNU CC, but only under the conditions described in the
GNU CC General Public License.   A copy of this license is
supposed to have been given to you along with GNU CC so you
can know your rights and responsibilities.  It should be in a
file named COPYING.  Among other things, the copyright notice
and this notice must be preserved on all copies.  */

/* 1 => write gdb debugging output (using symout.c).  -g
   2 => write dbx debugging output (using dbxout.c).  -G  */

extern int write_symbols;

/* Nonzero means do optimizations.  -opt.  */

extern int optimize;

/* Nonzero means do stupid register allocation.  -noreg.
   This and `optimize' are controlled by different switches in cc1,
   but normally cc controls them both with the -O switch.  */

extern int obey_regdecls;

/* Don't print functions as they are compiled and don't print
   times taken by the various passes.  -quiet.  */

extern int quiet_flag;

/* Don't print warning messages.  -w.  */

extern int inhibit_warnings;

/* Do print extra warnings (such as for uninitialized variables).  -W.  */

extern int extra_warnings;

/* Nonzero if generating code to do profiling.  */

extern int profile_flag;

/* Nonzero for -pedantic switch: warn about anything
   that standard C forbids.  */

extern int pedantic;

/* Now the symbols that are set with `-f' switches.  */

/* Nonzero for -fforce-mem: load memory value into a register
   before arithmetic on it.  This makes better cse but slower compilation.  */

extern int flag_force_mem;

/* Nonzero for -fforce-addr: load memory address into a register before
   reference to memory.  This makes better cse but slower compilation.  */

extern int flag_force_addr;

/* Nonzero for -fdefer-pop: don't pop args after each function call;
   instead save them up to pop many calls' args with one insns.  */

extern int flag_defer_pop;

/* Nonzero for -ffloat-store: don't allocate floats and doubles
   in extended-precision registers.  */

extern int flag_float_store;

/* Nonzero for -fcombine-regs:
   allow instruction combiner to combine an insn
   that just copies one reg to another.  */

extern int flag_combine_regs;

/* Nonzero for -fwritable-strings:
   store string constants in data segment and don't uniquize them.  */

extern int flag_writable_strings;

/* Nonzero means don't put addresses of constant functions in registers.
   Used for compiling the Unix kernel, where strange substitutions are
   done on the assembly output.  */

extern int flag_no_function_cse;

/* Nonzero for -fomit-frame-pointer:
   don't make a frame pointer in simple functions that don't require one.  */

extern int flag_omit_frame_pointer;

/* This isn't a flag, but everyone who needs flag_omit_frame_pointer
   also needs this.
   Nonzero means current function must be given a frame pointer.
   Set in stmt.c if anything is allocated on the stack there.
   Set in reload1.c if anything is allocated on the stack there.  */

extern int frame_pointer_needed;

/* Nonzero to inhibit use of define_optimization peephole opts.  */

extern int flag_no_peephole;

/* Nonzero means `char' should be signed.  */

extern int flag_signed_char;

/* Nonzero means allow type mismatches in conditional expressions;
   just make their values `void'.   */

extern int flag_cond_mismatch;

/* Nonzero means don't recognize the keyword `asm'.  */

extern int flag_no_asm;

/* Nonzero means warn about implicit declarations.  */

extern int warn_implicit;

/* Nonzero means warn about function definitions that default the return type
   or that use a null return and have a return-type other than void.  */

extern int warn_return_type;

/* Nonzero means do some things the same way PCC does.  */

extern int flag_traditional;

/* Nonzero means all references through pointers are volatile.  */

extern int flag_volatile;

/* Nonzero means make functions that look like good inline candidates
   go inline.  */

extern int flag_inline_functions;

/* Nonzero for -fkeep-inline-functions: even if we make a function
   go inline everywhere, keep its defintion around for debugging
   purposes.  */

extern int flag_keep_inline_functions;