--- /dev/null
+/* Compilation switch flag definitions for GNU CC.
+ Copyright (C) 1987, 1988 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Name of the input .c file being compiled. */
+extern char *main_input_filename;
+
+enum debug_info_type
+{
+ NO_DEBUG, /* Write no debug info. */
+ DBX_DEBUG, /* Write BSD .stabs for DBX (using dbxout.c). */
+ SDB_DEBUG, /* Write COFF for (old) SDB (using sdbout.c). */
+ DWARF_DEBUG /* Write Dwarf debug info (using dwarfout.c). */
+};
+
+/* Specify which kind of debugging info to generate. */
+extern enum debug_info_type write_symbols;
+
+enum debug_info_level
+{
+ DINFO_LEVEL_NONE, /* Write no debugging info. */
+ DINFO_LEVEL_TERSE, /* Write minimal info to support tracebacks only. */
+ DINFO_LEVEL_NORMAL, /* Write info for all declarations (and line table). */
+ DINFO_LEVEL_VERBOSE /* Write normal info plus #define/#undef info. */
+};
+
+/* Specify how much debugging info to generate. */
+extern enum debug_info_level debug_info_level;
+
+#ifdef DBX_DEBUGGING_INFO
+/* Nonzero means use GDB-only extensions of DBX format. */
+extern int use_gdb_dbx_extensions;
+#endif
+
+/* Nonzero means do optimizations. -opt. */
+
+extern int optimize;
+
+/* Nonzero means do stupid register allocation. -noreg.
+ Currently, this is 1 if `optimize' is 0. */
+
+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 to warn about unused local variables. */
+
+extern int warn_unused;
+
+/* Nonzero to warn about variables used before they are initialized. */
+
+extern int warn_uninitialized;
+
+/* Nonzero means warn about all declarations which shadow others. */
+
+extern int warn_shadow;
+
+/* Warn if a switch on an enum fails to have a case for every enum value. */
+
+extern int warn_switch;
+
+/* 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 warn about pointer casts that increase the required
+ alignment of the target type (and might therefore lead to a crash
+ due to a misaligned access). */
+
+extern int warn_cast_align;
+
+/* Nonzero means warn about any identifiers that match in the first N
+ characters. The value N is in `id_clash_len'. */
+
+extern int warn_id_clash;
+extern int id_clash_len;
+
+/* Warn if a function returns an aggregate,
+ since there are often incompatible calling conventions for doing this. */
+
+extern int warn_aggregate_return;
+
+/* Nonzero if generating code to do profiling. */
+
+extern int profile_flag;
+
+/* Nonzero if generating code to do profiling on the basis of basic blocks. */
+
+extern int profile_block_flag;
+
+/* Nonzero for -pedantic switch: warn about anything
+ that standard C forbids. */
+
+extern int pedantic;
+
+/* Temporarily suppress certain warnings.
+ This is set while reading code from a system header file. */
+
+extern int in_system_header;
+
+/* Nonzero for -dp: annotate the assembly with a comment describing the
+ pattern and alternative used. */
+
+extern int flag_print_asm_name;
+\f
+/* Now the symbols that are set with `-f' switches. */
+
+/* Nonzero means `char' should be signed. */
+
+extern int flag_signed_char;
+
+/* Nonzero means give an enum type only as many bytes as it needs. */
+
+extern int flag_short_enums;
+
+/* Nonzero for -fcaller-saves: allocate values in regs that need to
+ be saved across function calls, if that produces overall better code.
+ Optional now, so people can test it. */
+
+extern int flag_caller_saves;
+
+/* Nonzero for -fpcc-struct-return: return values the same way PCC does. */
+
+extern int flag_pcc_struct_return;
+
+/* 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 enables strength-reduction in loop.c. */
+
+extern int flag_strength_reduce;
+
+/* Nonzero enables loop unrolling in unroll.c. Only loops for which the
+ number of iterations can be calculated at compile-time (UNROLL_COMPLETELY,
+ UNROLL_MODULO) or at run-time (preconditioned to be UNROLL_MODULO) are
+ unrolled. */
+
+extern int flag_unroll_loops;
+
+/* Nonzero enables loop unrolling in unroll.c. All loops are unrolled.
+ This is generally not a win. */
+
+extern int flag_unroll_all_loops;
+
+/* Nonzero for -fcse-follow-jumps:
+ have cse follow jumps to do a more extensive job. */
+
+extern int flag_cse_follow_jumps;
+
+/* Nonzero for -fexpensive-optimizations:
+ perform miscellaneous relatively-expensive optimizations. */
+extern int flag_expensive_optimizations;
+
+/* 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;
+
+/* Nonzero to inhibit use of define_optimization peephole opts. */
+
+extern int flag_no_peephole;
+
+/* 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;
+
+/* Nonzero means that functions declared `inline' will be treated
+ as `static'. Prevents generation of zillions of copies of unused
+ static inline functions; instead, `inlines' are written out
+ only when actually used. Used in conjunction with -g. Also
+ does the right thing with #pragma interface. */
+
+extern int flag_no_inline;
+
+/* Nonzero if we are only using compiler to check syntax errors. */
+
+extern int flag_syntax_only;
+
+/* Nonzero means we should save auxilliary info into a .X file. */
+
+extern int flag_gen_aux_info;
+
+/* Nonzero means make the text shared if supported. */
+
+extern int flag_shared_data;
+
+/* flag_schedule_insns means schedule insns within basic blocks (before
+ local_alloc).
+ flag_schedule_insns_after_reload means schedule insns after
+ global_alloc. */
+
+extern int flag_schedule_insns;
+extern int flag_schedule_insns_after_reload;
+
+/* Nonzero means put things in delayed-branch slots if supported. */
+
+extern int flag_delayed_branch;
+
+/* Nonzero means pretend it is OK to examine bits of target floats,
+ even if that isn't true. The resulting code will have incorrect constants,
+ but the same series of instructions that the native compiler would make. */
+
+extern int flag_pretend_float;
+
+/* Nonzero means change certain warnings into errors.
+ Usually these are warnings about failure to conform to some standard. */
+
+extern int flag_pedantic_errors;
+
+/* Nonzero means generate position-independent code.
+ This is not fully implemented yet. */
+
+extern int flag_pic;
+
+/* Nonzero means place uninitialized global data in the bss section. */
+
+extern int flag_no_common;
+
+/* -finhibit-size-directive inhibits output of .size for ELF.
+ This is used only for compiling crtstuff.c,
+ and it may be extended to other effects
+ needed for crtstuff.c on other systems. */
+extern int flag_inhibit_size_directive;
+
+/* -fgnu-linker specifies use of the GNU linker for initializations.
+ -fno-gnu-linker says that collect will be used. */
+extern int flag_gnu_linker;
+\f
+/* Other basic status info about current function. */
+
+/* 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;
+
+/* Set nonzero if jump_optimize finds that control falls through
+ at the end of the function. */
+
+extern int can_reach_end;
+
+/* Nonzero if function being compiled receives nonlocal gotos
+ from nested functions. */
+
+extern int current_function_has_nonlocal_label;
+
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