Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the

non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.

1 files changed, 4036 insertions, 0 deletions

diff --git a/contrib/gcc/toplev.c b/contrib/gcc/toplev.c
new file mode 100644
index 0000000..1b6fccb
--- /dev/null
+++ b/contrib/gcc/toplev.c
@@ -0,0 +1,4036 @@
+/* Top level of GNU C compiler
+   Copyright (C) 1987, 88, 89, 92, 93, 94, 1995 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, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* This is the top level of cc1/c++.
+   It parses command args, opens files, invokes the various passes
+   in the proper order, and counts the time used by each.
+   Error messages and low-level interface to malloc also handled here.  */
+
+#include "config.h"
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+#include <stdio.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <sys/types.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+#ifndef _WIN32
+#ifdef USG
+#undef FLOAT
+#include <sys/param.h>
+/* This is for hpux.  It is a real screw.  They should change hpux.  */
+#undef FLOAT
+#include <sys/times.h>
+#include <time.h>   /* Correct for hpux at least.  Is it good on other USG?  */
+#undef FFS  /* Some systems define this in param.h.  */
+#else
+#ifndef VMS
+#include <sys/time.h>
+#include <sys/resource.h>
+#endif
+#endif
+#endif
+
+#include "input.h"
+#include "tree.h"
+#include "rtl.h"
+#include "flags.h"
+#include "insn-attr.h"
+#include "defaults.h"
+#include "output.h"
+#include "bytecode.h"
+#include "bc-emit.h"
+
+#ifdef XCOFF_DEBUGGING_INFO
+#include "xcoffout.h"
+#endif
+
+#ifdef VMS
+/* The extra parameters substantially improve the I/O performance.  */
+static FILE *
+vms_fopen (fname, type)
+     char * fname;
+     char * type;
+{
+  /* The <stdio.h> in the gcc-vms-1.42 distribution prototypes fopen with two
+     fixed arguments, which matches ANSI's specification but not VAXCRTL's
+     pre-ANSI implementation.  This hack circumvents the mismatch problem.  */
+  FILE *(*vmslib_fopen)() = (FILE *(*)()) fopen;
+
+  if (*type == 'w')
+    return (*vmslib_fopen) (fname, type, "mbc=32",
+			    "deq=64", "fop=tef", "shr=nil");
+  else
+    return (*vmslib_fopen) (fname, type, "mbc=32");
+}
+#define fopen vms_fopen
+#endif	/* VMS */
+
+#ifndef DEFAULT_GDB_EXTENSIONS
+#define DEFAULT_GDB_EXTENSIONS 1
+#endif
+
+extern int rtx_equal_function_value_matters;
+
+#if ! (defined (VMS) || defined (OS2))
+extern char **environ;
+#endif
+extern char *version_string, *language_string;
+
+/* Carry information from ASM_DECLARE_OBJECT_NAME
+   to ASM_FINISH_DECLARE_OBJECT.  */
+
+extern int size_directive_output;
+extern tree last_assemble_variable_decl;
+
+extern void init_lex ();
+extern void init_decl_processing ();
+extern void init_obstacks ();
+extern void init_tree_codes ();
+extern void init_rtl ();
+extern void init_regs ();
+extern void init_optabs ();
+extern void init_stmt ();
+extern void init_reg_sets ();
+extern void dump_flow_info ();
+extern void dump_sched_info ();
+extern void dump_local_alloc ();
+
+void rest_of_decl_compilation ();
+void error_with_file_and_line PVPROTO((char *file, int line, char *s, ...));
+void error_with_decl PVPROTO((tree decl, char *s, ...));
+void error_for_asm PVPROTO((rtx insn, char *s, ...));
+void error PVPROTO((char *s, ...));
+void fatal PVPROTO((char *s, ...));
+void warning_with_file_and_line PVPROTO((char *file, int line, char *s, ...));
+void warning_with_decl PVPROTO((tree decl, char *s, ...));
+void warning_for_asm PVPROTO((rtx insn, char *s, ...));
+void warning PVPROTO((char *s, ...));
+void pedwarn PVPROTO((char *s, ...));
+void pedwarn_with_decl PVPROTO((tree decl, char *s, ...));
+void pedwarn_with_file_and_line PVPROTO((char *file, int line, char *s, ...));
+void sorry PVPROTO((char *s, ...));
+void really_sorry PVPROTO((char *s, ...));
+void fancy_abort ();
+#ifndef abort
+void abort ();
+#endif
+void set_target_switch ();
+static void print_switch_values ();
+static char *decl_name ();
+
+#ifdef __alpha
+extern char *sbrk ();
+#endif
+
+/* Name of program invoked, sans directories.  */
+
+char *progname;
+
+/* Copy of arguments to main.  */
+int save_argc;
+char **save_argv;
+
+/* Name of current original source file (what was input to cpp).
+   This comes from each #-command in the actual input.  */
+
+char *input_filename;
+
+/* Name of top-level original source file (what was input to cpp).
+   This comes from the #-command at the beginning of the actual input.
+   If there isn't any there, then this is the cc1 input file name.  */
+
+char *main_input_filename;
+
+/* Stream for reading from the input file.  */
+
+FILE *finput;
+
+/* Current line number in real source file.  */
+
+int lineno;
+
+/* Stack of currently pending input files.  */
+
+struct file_stack *input_file_stack;
+
+/* Incremented on each change to input_file_stack.  */
+int input_file_stack_tick;
+
+/* FUNCTION_DECL for function now being parsed or compiled.  */
+
+extern tree current_function_decl;
+
+/* Name to use as base of names for dump output files.  */
+
+char *dump_base_name;
+
+/* Bit flags that specify the machine subtype we are compiling for.
+   Bits are tested using macros TARGET_... defined in the tm.h file
+   and set by `-m...' switches.  Must be defined in rtlanal.c.  */
+
+extern int target_flags;
+
+/* Flags saying which kinds of debugging dump have been requested.  */
+
+int rtl_dump = 0;
+int rtl_dump_and_exit = 0;
+int jump_opt_dump = 0;
+int cse_dump = 0;
+int loop_dump = 0;
+int cse2_dump = 0;
+int flow_dump = 0;
+int combine_dump = 0;
+int sched_dump = 0;
+int local_reg_dump = 0;
+int global_reg_dump = 0;
+int sched2_dump = 0;
+int jump2_opt_dump = 0;
+int dbr_sched_dump = 0;
+int flag_print_asm_name = 0;
+int stack_reg_dump = 0;
+
+/* Name for output file of assembly code, specified with -o.  */
+
+char *asm_file_name;
+
+/* Value of the -G xx switch, and whether it was passed or not.  */
+int g_switch_value;
+int g_switch_set;
+
+/* Type(s) of debugging information we are producing (if any).
+   See flags.h for the definitions of the different possible
+   types of debugging information.  */
+enum debug_info_type write_symbols = NO_DEBUG;
+
+/* Level of debugging information we are producing.  See flags.h
+   for the definitions of the different possible levels.  */
+enum debug_info_level debug_info_level = DINFO_LEVEL_NONE;
+
+/* Nonzero means use GNU-only extensions in the generated symbolic
+   debugging information.  */
+/* Currently, this only has an effect when write_symbols is set to
+   DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG.  */
+int use_gnu_debug_info_extensions = 0;
+
+/* Nonzero means do optimizations.  -O.
+   Particular numeric values stand for particular amounts of optimization;
+   thus, -O2 stores 2 here.  However, the optimizations beyond the basic
+   ones are not controlled directly by this variable.  Instead, they are
+   controlled by individual `flag_...' variables that are defaulted
+   based on this variable.  */
+
+int optimize = 0;
+
+/* Number of error messages and warning messages so far.  */
+
+int errorcount = 0;
+int warningcount = 0;
+int sorrycount = 0;
+
+/* Flag to output bytecode instead of native assembler */
+int output_bytecode = 0;
+
+/* Pointer to function to compute the name to use to print a declaration.  */
+
+char *(*decl_printable_name) ();
+
+/* Pointer to function to compute rtl for a language-specific tree code.  */
+
+struct rtx_def *(*lang_expand_expr) ();
+
+/* Pointer to function to finish handling an incomplete decl at the
+   end of compilation.  */
+
+void (*incomplete_decl_finalize_hook) () = 0;
+
+/* Pointer to function for interim exception handling implementation.
+   This interface will change, and it is only here until a better interface
+   replaces it.  */
+
+void (*interim_eh_hook)	PROTO((tree));
+
+/* Nonzero if generating code to do profiling.  */
+
+int profile_flag = 0;
+
+/* Nonzero if generating code to do profiling on a line-by-line basis.  */
+
+int profile_block_flag;
+
+/* Nonzero for -pedantic switch: warn about anything
+   that standard spec forbids.  */
+
+int pedantic = 0;
+
+/* Temporarily suppress certain warnings.
+   This is set while reading code from a system header file.  */
+
+int in_system_header = 0;
+
+/* Nonzero means do stupid register allocation.
+   Currently, this is 1 if `optimize' is 0.  */
+
+int obey_regdecls = 0;
+
+/* Don't print functions as they are compiled and don't print
+   times taken by the various passes.  -quiet.  */
+
+int quiet_flag = 0;
+
+/* -f flags.  */
+
+/* Nonzero means `char' should be signed.  */
+
+int flag_signed_char;
+
+/* Nonzero means give an enum type only as many bytes as it needs.  */
+
+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.  */
+
+#ifdef DEFAULT_CALLER_SAVES
+int flag_caller_saves = 1;
+#else
+int flag_caller_saves = 0;
+#endif
+
+/* Nonzero if structures and unions should be returned in memory.
+
+   This should only be defined if compatibility with another compiler or
+   with an ABI is needed, because it results in slower code.  */
+
+#ifndef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
+#endif
+
+/* Nonzero for -fpcc-struct-return: return values the same way PCC does.  */
+
+int flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN;
+
+/* Nonzero for -fforce-mem: load memory value into a register
+   before arithmetic on it.  This makes better cse but slower compilation.  */
+
+int flag_force_mem = 0;
+
+/* Nonzero for -fforce-addr: load memory address into a register before
+   reference to memory.  This makes better cse but slower compilation.  */
+
+int flag_force_addr = 0;
+
+/* Nonzero for -fdefer-pop: don't pop args after each function call;
+   instead save them up to pop many calls' args with one insns.  */
+
+int flag_defer_pop = 0;
+
+/* Nonzero for -ffloat-store: don't allocate floats and doubles
+   in extended-precision registers.  */
+
+int flag_float_store = 0;
+
+/* Nonzero for -fcse-follow-jumps:
+   have cse follow jumps to do a more extensive job.  */
+
+int flag_cse_follow_jumps;
+
+/* Nonzero for -fcse-skip-blocks:
+   have cse follow a branch around a block.  */
+int flag_cse_skip_blocks;
+
+/* Nonzero for -fexpensive-optimizations:
+   perform miscellaneous relatively-expensive optimizations.  */
+int flag_expensive_optimizations;
+
+/* Nonzero for -fthread-jumps:
+   have jump optimize output of loop.  */
+
+int flag_thread_jumps;
+
+/* Nonzero enables strength-reduction in loop.c.  */
+
+int flag_strength_reduce = 0;
+
+/* 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.  */
+
+int flag_unroll_loops;
+
+/* Nonzero enables loop unrolling in unroll.c.  All loops are unrolled.
+   This is generally not a win.  */
+
+int flag_unroll_all_loops;
+
+/* Nonzero for -fwritable-strings:
+   store string constants in data segment and don't uniquize them.  */
+
+int flag_writable_strings = 0;
+
+/* 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.  */
+
+int flag_no_function_cse = 0;
+
+/* Nonzero for -fomit-frame-pointer:
+   don't make a frame pointer in simple functions that don't require one.  */
+
+int flag_omit_frame_pointer = 0;
+
+/* Nonzero to inhibit use of define_optimization peephole opts.  */
+
+int flag_no_peephole = 0;
+
+/* Nonzero allows GCC to violate some IEEE or ANSI rules regarding math
+   operations in the interest of optimization.  For example it allows
+   GCC to assume arguments to sqrt are nonnegative numbers, allowing
+   faster code for sqrt to be generated. */
+
+int flag_fast_math = 0;
+
+/* Nonzero means all references through pointers are volatile.  */
+
+int flag_volatile;
+
+/* Nonzero means treat all global and extern variables as global.  */
+
+int flag_volatile_global;
+
+/* Nonzero means just do syntax checking; don't output anything.  */
+
+int flag_syntax_only = 0;
+
+/* Nonzero means to rerun cse after loop optimization.  This increases
+   compilation time about 20% and picks up a few more common expressions.  */
+
+static int flag_rerun_cse_after_loop;
+
+/* Nonzero for -finline-functions: ok to inline functions that look like
+   good inline candidates.  */
+
+int flag_inline_functions;
+
+/* Nonzero for -fkeep-inline-functions: even if we make a function
+   go inline everywhere, keep its definition around for debugging
+   purposes.  */
+
+int flag_keep_inline_functions;
+
+/* Nonzero means that functions will not be inlined.  */
+
+int flag_no_inline;
+
+/* Nonzero means we should be saving declaration info into a .X file.  */
+
+int flag_gen_aux_info = 0;
+
+/* Specified name of aux-info file.  */
+
+static char *aux_info_file_name;
+
+/* Nonzero means make the text shared if supported.  */
+
+int flag_shared_data;
+
+/* Nonzero means schedule into delayed branch slots if supported.  */
+
+int flag_delayed_branch;
+
+/* Nonzero means to run cleanups after CALL_EXPRs.  */
+
+int flag_short_temps;
+
+/* Nonzero if we are compiling pure (sharable) code.
+   Value is 1 if we are doing reasonable (i.e. simple
+   offset into offset table) pic.  Value is 2 if we can
+   only perform register offsets.  */
+
+int flag_pic;
+
+/* Nonzero means place uninitialized global data in the bss section. */
+
+int flag_no_common;
+
+/* 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.  */
+
+int flag_pretend_float;
+
+/* Nonzero means change certain warnings into errors.
+   Usually these are warnings about failure to conform to some standard.  */
+
+int flag_pedantic_errors = 0;
+
+/* flag_schedule_insns means schedule insns within basic blocks (before
+   local_alloc).
+   flag_schedule_insns_after_reload means schedule insns after
+   global_alloc.  */
+
+int flag_schedule_insns = 0;
+int flag_schedule_insns_after_reload = 0;
+
+/* -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.  */
+int flag_inhibit_size_directive = 0;
+
+/* -fverbose-asm causes extra commentary information to be produced in
+   the generated assembly code (to make it more readable).  This option
+   is generally only of use to those who actually need to read the
+   generated assembly code (perhaps while debugging the compiler itself).  */
+
+int flag_verbose_asm = 0;
+
+/* -fgnu-linker specifies use of the GNU linker for initializations.
+   (Or, more generally, a linker that handles initializations.)
+   -fno-gnu-linker says that collect2 will be used.  */
+#ifdef USE_COLLECT2
+int flag_gnu_linker = 0;
+#else
+int flag_gnu_linker = 1;
+#endif
+
+/* Tag all structures with __attribute__(packed) */
+int flag_pack_struct = 0;
+
+/* Table of language-independent -f options.
+   STRING is the option name.  VARIABLE is the address of the variable.
+   ON_VALUE is the value to store in VARIABLE
+    if `-fSTRING' is seen as an option.
+   (If `-fno-STRING' is seen as an option, the opposite value is stored.)  */
+
+struct { char *string; int *variable; int on_value;} f_options[] =
+{
+  {"float-store", &flag_float_store, 1},
+  {"volatile", &flag_volatile, 1},
+  {"volatile-global", &flag_volatile_global, 1},
+  {"defer-pop", &flag_defer_pop, 1},
+  {"omit-frame-pointer", &flag_omit_frame_pointer, 1},
+  {"cse-follow-jumps", &flag_cse_follow_jumps, 1},
+  {"cse-skip-blocks", &flag_cse_skip_blocks, 1},
+  {"expensive-optimizations", &flag_expensive_optimizations, 1},
+  {"thread-jumps", &flag_thread_jumps, 1},
+  {"strength-reduce", &flag_strength_reduce, 1},
+  {"unroll-loops", &flag_unroll_loops, 1},
+  {"unroll-all-loops", &flag_unroll_all_loops, 1},
+  {"writable-strings", &flag_writable_strings, 1},
+  {"peephole", &flag_no_peephole, 0},
+  {"force-mem", &flag_force_mem, 1},
+  {"force-addr", &flag_force_addr, 1},
+  {"function-cse", &flag_no_function_cse, 0},
+  {"inline-functions", &flag_inline_functions, 1},
+  {"keep-inline-functions", &flag_keep_inline_functions, 1},
+  {"inline", &flag_no_inline, 0},
+  {"syntax-only", &flag_syntax_only, 1},
+  {"shared-data", &flag_shared_data, 1},
+  {"caller-saves", &flag_caller_saves, 1},
+  {"pcc-struct-return", &flag_pcc_struct_return, 1},
+  {"reg-struct-return", &flag_pcc_struct_return, 0},
+  {"delayed-branch", &flag_delayed_branch, 1},
+  {"rerun-cse-after-loop", &flag_rerun_cse_after_loop, 1},
+  {"pretend-float", &flag_pretend_float, 1},
+  {"schedule-insns", &flag_schedule_insns, 1},
+  {"schedule-insns2", &flag_schedule_insns_after_reload, 1},
+  {"pic", &flag_pic, 1},
+  {"PIC", &flag_pic, 2},
+  {"fast-math", &flag_fast_math, 1},
+  {"common", &flag_no_common, 0},
+  {"inhibit-size-directive", &flag_inhibit_size_directive, 1},
+  {"verbose-asm", &flag_verbose_asm, 1},
+  {"gnu-linker", &flag_gnu_linker, 1},
+  {"pack-struct", &flag_pack_struct, 1},
+  {"bytecode", &output_bytecode, 1}
+};
+
+/* Table of language-specific options.  */
+
+char *lang_options[] =
+{
+  "-ansi",
+  "-fallow-single-precision",
+
+  "-fsigned-bitfields",
+  "-funsigned-bitfields",
+  "-fno-signed-bitfields",
+  "-fno-unsigned-bitfields",
+  "-fsigned-char",
+  "-funsigned-char",
+  "-fno-signed-char",
+  "-fno-unsigned-char",
+
+  "-ftraditional",
+  "-traditional",
+  "-fnotraditional",
+  "-fno-traditional",
+
+  "-fasm",
+  "-fno-asm",
+  "-fbuiltin",
+  "-fno-builtin",
+  "-fcond-mismatch",
+  "-fno-cond-mismatch",
+  "-fdollars-in-identifiers",
+  "-fno-dollars-in-identifiers",
+  "-fident",
+  "-fno-ident",
+  "-fshort-double",
+  "-fno-short-double",
+  "-fshort-enums",
+  "-fno-short-enums",
+
+  "-Wall",
+  "-Wbad-function-cast",
+  "-Wno-bad-function-cast",
+  "-Wcast-qual",
+  "-Wno-cast-qual",
+  "-Wchar-subscripts",
+  "-Wno-char-subscripts",
+  "-Wcomment",
+  "-Wno-comment",
+  "-Wcomments",
+  "-Wno-comments",
+  "-Wconversion",
+  "-Wno-conversion",
+  "-Wformat",
+  "-Wno-format",
+  "-Wimport",
+  "-Wno-import",
+  "-Wimplicit",
+  "-Wno-implicit",
+  "-Wmissing-braces",
+  "-Wno-missing-braces",
+  "-Wmissing-declarations",
+  "-Wno-missing-declarations",
+  "-Wmissing-prototypes",
+  "-Wno-missing-prototypes",
+  "-Wnested-externs",
+  "-Wno-nested-externs",
+  "-Wparentheses",
+  "-Wno-parentheses",
+  "-Wpointer-arith",
+  "-Wno-pointer-arith",
+  "-Wredundant-decls",
+  "-Wno-redundant-decls",
+  "-Wstrict-prototypes",
+  "-Wno-strict-prototypes",
+  "-Wtraditional",
+  "-Wno-traditional",
+  "-Wtrigraphs",
+  "-Wno-trigraphs",
+  "-Wwrite-strings",
+  "-Wno-write-strings",
+
+  /* these are for obj c */
+  "-lang-objc",
+  "-gen-decls",
+  "-fgnu-runtime",
+  "-fno-gnu-runtime",
+  "-fnext-runtime",
+  "-fno-next-runtime",
+  "-Wselector",
+  "-Wno-selector",
+  "-Wprotocol",
+  "-Wno-protocol",
+
+#include "options.h"
+  0
+};
+
+/* Options controlling warnings */
+
+/* Don't print warning messages.  -w.  */
+
+int inhibit_warnings = 0;
+
+/* Print various extra warnings.  -W.  */
+
+int extra_warnings = 0;
+
+/* Treat warnings as errors.  -Werror.  */
+
+int warnings_are_errors = 0;
+
+/* Nonzero to warn about unused local variables.  */
+
+int warn_unused;
+
+/* Nonzero to warn about variables used before they are initialized.  */
+
+int warn_uninitialized;
+
+/* Nonzero means warn about all declarations which shadow others.   */
+
+int warn_shadow;
+
+/* Warn if a switch on an enum fails to have a case for every enum value.  */
+
+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.  */
+
+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).  */
+
+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'.  */
+
+int warn_id_clash;
+unsigned id_clash_len;
+
+/* Nonzero means warn about any objects definitions whose size is larger
+   than N bytes.  Also want about function definitions whose returned
+   values are larger than N bytes. The value N is in `larger_than_size'.  */
+ 
+int warn_larger_than;
+unsigned larger_than_size;
+
+/* Nonzero means warn if inline function is too large.  */
+
+int warn_inline;
+
+/* Warn if a function returns an aggregate,
+   since there are often incompatible calling conventions for doing this.  */
+
+int warn_aggregate_return;
+
+/* Likewise for -W.  */
+
+struct { char *string; int *variable; int on_value;} W_options[] =
+{
+  {"unused", &warn_unused, 1},
+  {"error", &warnings_are_errors, 1},
+  {"shadow", &warn_shadow, 1},
+  {"switch", &warn_switch, 1},
+  {"aggregate-return", &warn_aggregate_return, 1},
+  {"cast-align", &warn_cast_align, 1},
+  {"uninitialized", &warn_uninitialized, 1},
+  {"inline", &warn_inline, 1}
+};
+
+/* Output files for assembler code (real compiler output)
+   and debugging dumps.  */
+
+FILE *asm_out_file;
+FILE *aux_info_file;
+FILE *rtl_dump_file;
+FILE *jump_opt_dump_file;
+FILE *cse_dump_file;
+FILE *loop_dump_file;
+FILE *cse2_dump_file;
+FILE *flow_dump_file;
+FILE *combine_dump_file;
+FILE *sched_dump_file;
+FILE *local_reg_dump_file;
+FILE *global_reg_dump_file;
+FILE *sched2_dump_file;
+FILE *jump2_opt_dump_file;
+FILE *dbr_sched_dump_file;
+FILE *stack_reg_dump_file;
+
+/* Time accumulators, to count the total time spent in various passes.  */
+
+int parse_time;
+int varconst_time;
+int integration_time;
+int jump_time;
+int cse_time;
+int loop_time;
+int cse2_time;
+int flow_time;
+int combine_time;
+int sched_time;
+int local_alloc_time;
+int global_alloc_time;
+int sched2_time;
+int dbr_sched_time;
+int shorten_branch_time;
+int stack_reg_time;
+int final_time;
+int symout_time;
+int dump_time;
+
+/* Return time used so far, in microseconds.  */
+
+int
+get_run_time ()
+{
+#ifndef _WIN32
+#ifdef USG
+  struct tms tms;
+#else
+#ifndef VMS
+  struct rusage rusage;
+#else
+  struct
+    {
+      int proc_user_time;
+      int proc_system_time;
+      int child_user_time;
+      int child_system_time;
+    } vms_times;
+#endif
+#endif
+#endif
+
+  if (quiet_flag)
+    return 0;
+#ifdef _WIN32
+  if (clock() < 0)
+    return 0;
+  else
+    return (clock() * 1000);
+#else /* not _WIN32 */
+#ifdef USG
+  times (&tms);
+  return (tms.tms_utime + tms.tms_stime) * (1000000 / HZ);
+#else
+#ifndef VMS
+  getrusage (0, &rusage);
+  return (rusage.ru_utime.tv_sec * 1000000 + rusage.ru_utime.tv_usec
+	  + rusage.ru_stime.tv_sec * 1000000 + rusage.ru_stime.tv_usec);
+#else /* VMS */
+  times (&vms_times);
+  return (vms_times.proc_user_time + vms_times.proc_system_time) * 10000;
+#endif
+#endif
+#endif
+}
+
+#define TIMEVAR(VAR, BODY)    \
+do { int otime = get_run_time (); BODY; VAR += get_run_time () - otime; } while (0)
+
+void
+print_time (str, total)
+     char *str;
+     int total;
+{
+  fprintf (stderr,
+	   "time in %s: %d.%06d\n",
+	   str, total / 1000000, total % 1000000);
+}
+
+/* Count an error or warning.  Return 1 if the message should be printed.  */
+
+int
+count_error (warningp)
+     int warningp;
+{
+  if (warningp && inhibit_warnings)
+    return 0;
+
+  if (warningp && !warnings_are_errors)
+    warningcount++;
+  else
+    {
+      static int warning_message = 0;
+
+      if (warningp && !warning_message)
+	{
+	  fprintf (stderr, "%s: warnings being treated as errors\n", progname);
+	  warning_message = 1;
+	}
+      errorcount++;
+    }
+
+  return 1;
+}
+
+/* Print a fatal error message.  NAME is the text.
+   Also include a system error message based on `errno'.  */
+
+void
+pfatal_with_name (name)
+     char *name;
+{
+  fprintf (stderr, "%s: ", progname);
+  perror (name);
+  exit (FATAL_EXIT_CODE);
+}
+
+void
+fatal_io_error (name)
+     char *name;
+{
+  fprintf (stderr, "%s: %s: I/O error\n", progname, name);
+  exit (FATAL_EXIT_CODE);
+}
+
+/* Called to give a better error message for a bad insn rather than
+   just calling abort().  */
+
+void
+fatal_insn (message, insn)
+     char *message;
+     rtx insn;
+{
+  if (!output_bytecode)
+    {
+      error (message);
+      debug_rtx (insn);
+    }
+  if (asm_out_file)
+    fflush (asm_out_file);
+  if (aux_info_file)
+    fflush (aux_info_file);
+  if (rtl_dump_file)
+    fflush (rtl_dump_file);
+  if (jump_opt_dump_file)
+    fflush (jump_opt_dump_file);
+  if (cse_dump_file)
+    fflush (cse_dump_file);
+  if (loop_dump_file)
+    fflush (loop_dump_file);
+  if (cse2_dump_file)
+    fflush (cse2_dump_file);
+  if (flow_dump_file)
+    fflush (flow_dump_file);
+  if (combine_dump_file)
+    fflush (combine_dump_file);
+  if (sched_dump_file)
+    fflush (sched_dump_file);
+  if (local_reg_dump_file)
+    fflush (local_reg_dump_file);
+  if (global_reg_dump_file)
+    fflush (global_reg_dump_file);
+  if (sched2_dump_file)
+    fflush (sched2_dump_file);
+  if (jump2_opt_dump_file)
+    fflush (jump2_opt_dump_file);
+  if (dbr_sched_dump_file)
+    fflush (dbr_sched_dump_file);
+  if (stack_reg_dump_file)
+    fflush (stack_reg_dump_file);
+  abort ();
+}
+
+/* Called to give a better error message when we don't have an insn to match
+   what we are looking for or if the insn's constraints aren't satisfied,
+   rather than just calling abort().  */
+
+void
+fatal_insn_not_found (insn)
+     rtx insn;
+{
+  if (INSN_CODE (insn) < 0)
+    fatal_insn ("internal error--unrecognizable insn:", insn);
+  else
+    fatal_insn ("internal error--insn does not satisfy its constraints:", insn);
+}
+
+/* This is the default decl_printable_name function.  */
+
+static char *
+decl_name (decl, kind)
+     tree decl;
+     char **kind;
+{
+  return IDENTIFIER_POINTER (DECL_NAME (decl));
+}
+
+/* This is the default interim_eh_hook function.  */
+
+void
+interim_eh (finalization)
+     tree finalization;
+{
+  /* Don't do anything by default.  */
+}
+
+static int need_error_newline;
+
+/* Function of last error message;
+   more generally, function such that if next error message is in it
+   then we don't have to mention the function name.  */
+static tree last_error_function = NULL;
+
+/* Used to detect when input_file_stack has changed since last described.  */
+static int last_error_tick;
+
+/* Called when the start of a function definition is parsed,
+   this function prints on stderr the name of the function.  */
+
+void
+announce_function (decl)
+     tree decl;
+{
+  if (! quiet_flag)
+    {
+      char *junk;
+      if (rtl_dump_and_exit)
+	fprintf (stderr, "%s ", IDENTIFIER_POINTER (DECL_NAME (decl)));
+      else
+	fprintf (stderr, " %s", (*decl_printable_name) (decl, &junk));
+      fflush (stderr);
+      need_error_newline = 1;
+      last_error_function = current_function_decl;
+    }
+}
+
+/* The default function to print out name of current function that caused
+   an error.  */
+
+void
+default_print_error_function (file)
+     char *file;
+{
+  if (last_error_function != current_function_decl)
+    {
+      char *kind = "function";
+      if (current_function_decl != 0
+	  && TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE)
+	kind = "method";
+
+      if (file)
+	fprintf (stderr, "%s: ", file);
+
+      if (current_function_decl == NULL)
+	fprintf (stderr, "At top level:\n");
+      else
+	{
+	  char *name = (*decl_printable_name) (current_function_decl, &kind);
+	  fprintf (stderr, "In %s `%s':\n", kind, name);
+	}
+
+      last_error_function = current_function_decl;
+    }
+}
+
+/* Called by report_error_function to print out function name.
+ * Default may be overridden by language front-ends. */
+
+void (*print_error_function) PROTO((char*)) = default_print_error_function;
+
+/* Prints out, if necessary, the name of the current function
+  that caused an error.  Called from all error and warning functions.  */
+
+void
+report_error_function (file)
+     char *file;
+{
+  struct file_stack *p;
+
+  if (need_error_newline)
+    {
+      fprintf (stderr, "\n");
+      need_error_newline = 0;
+    }
+
+  (*print_error_function) (file);
+
+  if (input_file_stack && input_file_stack->next != 0
+      && input_file_stack_tick != last_error_tick
+      && file == input_filename)
+    {
+      fprintf (stderr, "In file included");
+      for (p = input_file_stack->next; p; p = p->next)
+	{
+	  fprintf (stderr, " from %s:%d", p->name, p->line);
+	  if (p->next)
+	    fprintf (stderr, ",\n                ");
+	}
+      fprintf (stderr, ":\n");
+      last_error_tick = input_file_stack_tick;
+    }
+}
+
+/* Print a message.  */
+
+static void
+vmessage (prefix, s, ap)
+     char *prefix;
+     char *s;
+     va_list ap;
+{
+  if (prefix)
+    fprintf (stderr, "%s: ", prefix);
+
+#ifdef HAVE_VPRINTF
+  vfprintf (stderr, s, ap);
+#else
+  {
+    HOST_WIDE_INT v1 = va_arg(ap, HOST_WIDE_INT);
+    HOST_WIDE_INT v2 = va_arg(ap, HOST_WIDE_INT);
+    HOST_WIDE_INT v3 = va_arg(ap, HOST_WIDE_INT);
+    HOST_WIDE_INT v4 = va_arg(ap, HOST_WIDE_INT);
+    fprintf (stderr, s, v1, v2, v3, v4);
+  }
+#endif
+}
+
+/* Print a message relevant to line LINE of file FILE.  */
+
+static void
+v_message_with_file_and_line (file, line, prefix, s, ap)
+     char *file;
+     int line;
+     char *prefix;
+     char *s;
+     va_list ap;
+{
+  if (file)
+    fprintf (stderr, "%s:%d: ", file, line);
+  else
+    fprintf (stderr, "%s: ", progname);
+
+  vmessage (prefix, s, ap);
+  fputc ('\n', stderr);
+}
+
+/* Print a message relevant to the given DECL.  */
+
+static void
+v_message_with_decl (decl, prefix, s, ap)
+     tree decl;
+     char *prefix;
+     char *s;
+     va_list ap;
+{
+  char *n, *p, *junk;
+
+  fprintf (stderr, "%s:%d: ",
+	   DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
+
+  if (prefix)
+    fprintf (stderr, "%s: ", prefix);
+
+  /* Do magic to get around lack of varargs support for insertion
+     of arguments into existing list.  We know that the decl is first;
+     we ass_u_me that it will be printed with "%s".  */
+
+  for (p = s; *p; ++p)
+    {
+      if (*p == '%')
+	{
+	  if (*(p + 1) == '%')
+	    ++p;
+	  else
+	    break;
+	}
+    }
+
+  if (p > s)			/* Print the left-hand substring.  */
+    {
+      char fmt[sizeof "%.255s"];
+      long width = p - s;
+             
+      if (width > 255L) width = 255L;	/* arbitrary */
+      sprintf (fmt, "%%.%lds", width);
+      fprintf (stderr, fmt, s);
+    }
+
+  if (*p == '%')		/* Print the name.  */
+    {
+      char *n = (DECL_NAME (decl)
+		 ? (*decl_printable_name) (decl, &junk)
+		 : "((anonymous))");
+      fputs (n, stderr);
+      while (*p)
+	{
+	  ++p;
+	  if (isalpha (*(p - 1) & 0xFF))
+	    break;
+	}
+    }
+
+  if (*p)			/* Print the rest of the message.  */
+    vmessage ((char *)NULL, p, ap);
+
+  fputc ('\n', stderr);
+}
+
+/* Figure file and line of the given INSN.  */
+
+static void
+file_and_line_for_asm (insn, pfile, pline)
+     rtx insn;
+     char **pfile;
+     int *pline;
+{
+  rtx body = PATTERN (insn);
+  rtx asmop;
+
+  /* Find the (or one of the) ASM_OPERANDS in the insn.  */
+  if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS)
+    asmop = SET_SRC (body);
+  else if (GET_CODE (body) == ASM_OPERANDS)
+    asmop = body;
+  else if (GET_CODE (body) == PARALLEL
+	   && GET_CODE (XVECEXP (body, 0, 0)) == SET)
+    asmop = SET_SRC (XVECEXP (body, 0, 0));
+  else if (GET_CODE (body) == PARALLEL
+	   && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS)
+    asmop = XVECEXP (body, 0, 0);
+  else
+    asmop = NULL;
+
+  if (asmop)
+    {
+      *pfile = ASM_OPERANDS_SOURCE_FILE (asmop);
+      *pline = ASM_OPERANDS_SOURCE_LINE (asmop);
+    }
+  else
+    {
+      *pfile = input_filename;
+      *pline = lineno;
+    }
+}
+
+/* Report an error at line LINE of file FILE.  */
+
+static void
+v_error_with_file_and_line (file, line, s, ap)
+     char *file;
+     int line;
+     char *s;
+     va_list ap;
+{
+  count_error (0);
+  report_error_function (file);
+  v_message_with_file_and_line (file, line, (char *)NULL, s, ap);
+}
+
+void
+error_with_file_and_line VPROTO((char *file, int line, char *s, ...))
+{
+#ifndef __STDC__
+  char *file;
+  int line;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  file = va_arg (ap, char *);
+  line = va_arg (ap, int);
+  s = va_arg (ap, char *);
+#endif
+
+  v_error_with_file_and_line (file, line, s, ap);
+  va_end (ap);
+}
+
+/* Report an error at the declaration DECL.
+   S is a format string which uses %s to substitute the declaration
+   name; subsequent substitutions are a la printf.  */
+
+static void
+v_error_with_decl (decl, s, ap)
+     tree decl;
+     char *s;
+     va_list ap;
+{
+  count_error (0);
+  report_error_function (DECL_SOURCE_FILE (decl));
+  v_message_with_decl (decl, (char *)NULL, s, ap);
+}
+
+void
+error_with_decl VPROTO((tree decl, char *s, ...))
+{
+#ifndef __STDC__
+  tree decl;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  decl = va_arg (ap, tree);
+  s = va_arg (ap, char *);
+#endif
+
+  v_error_with_decl (decl, s, ap);
+  va_end (ap);
+}
+
+/* Report an error at the line number of the insn INSN.
+   This is used only when INSN is an `asm' with operands,
+   and each ASM_OPERANDS records its own source file and line.  */
+
+static void
+v_error_for_asm (insn, s, ap)
+     rtx insn;
+     char *s;
+     va_list ap;
+{
+  char *file;
+  int line;
+
+  count_error (0);
+  file_and_line_for_asm (insn, &file, &line);
+  report_error_function (file);
+  v_message_with_file_and_line (file, line, (char *)NULL, s, ap);
+}
+
+void
+error_for_asm VPROTO((rtx insn, char *s, ...))
+{
+#ifndef __STDC__
+  rtx insn;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  insn = va_arg (ap, rtx);
+  s = va_arg (ap, char *);
+#endif
+
+  v_error_for_asm (insn, s, ap);
+  va_end (ap);
+}
+
+/* Report an error at the current line number.  */
+
+static void
+verror (s, ap)
+     char *s;
+     va_list ap;
+{
+  v_error_with_file_and_line (input_filename, lineno, s, ap);
+}
+
+void
+error VPROTO((char *s, ...))
+{
+#ifndef __STDC__
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  s = va_arg (ap, char *);
+#endif
+
+  verror (s, ap);
+  va_end (ap);
+}
+
+/* Report a fatal error at the current line number.  */
+
+static void
+vfatal (s, ap)
+     char *s;
+     va_list ap;
+{
+  verror (s, ap);
+  exit (FATAL_EXIT_CODE);
+}
+
+void
+fatal VPROTO((char *s, ...))
+{
+#ifndef __STDC__
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  s = va_arg (ap, char *);
+#endif
+
+  vfatal (s, ap);
+  va_end (ap);
+}
+
+/* Report a warning at line LINE of file FILE.  */
+
+static void
+v_warning_with_file_and_line (file, line, s, ap)
+     char *file;
+     int line;
+     char *s;
+     va_list ap;
+{
+  if (count_error (1))
+    {
+      report_error_function (file);
+      v_message_with_file_and_line (file, line, "warning", s, ap);
+    }
+}
+
+void
+warning_with_file_and_line VPROTO((char *file, int line, char *s, ...))
+{
+#ifndef __STDC__
+  char *file;
+  int line;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  file = va_arg (ap, char *);
+  line = va_arg (ap, int);
+  s = va_arg (ap, char *);
+#endif
+
+  v_warning_with_file_and_line (file, line, s, ap);
+  va_end (ap);
+}
+
+/* Report a warning at the declaration DECL.
+   S is a format string which uses %s to substitute the declaration
+   name; subsequent substitutions are a la printf.  */
+
+static void
+v_warning_with_decl (decl, s, ap)
+     tree decl;
+     char *s;
+     va_list ap;
+{
+  if (count_error (1))
+    {
+      report_error_function (DECL_SOURCE_FILE (decl));
+      v_message_with_decl (decl, "warning", s, ap);
+    }
+}
+
+void
+warning_with_decl VPROTO((tree decl, char *s, ...))
+{
+#ifndef __STDC__
+  tree decl;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  decl = va_arg (ap, tree);
+  s = va_arg (ap, char *);
+#endif
+
+  v_warning_with_decl (decl, s, ap);
+  va_end (ap);
+}
+
+/* Report a warning at the line number of the insn INSN.
+   This is used only when INSN is an `asm' with operands,
+   and each ASM_OPERANDS records its own source file and line.  */
+
+static void
+v_warning_for_asm (insn, s, ap)
+     rtx insn;
+     char *s;
+     va_list ap;
+{
+  if (count_error (1))
+    {
+      char *file;
+      int line;
+
+      file_and_line_for_asm (insn, &file, &line);
+      report_error_function (file);
+      v_message_with_file_and_line (file, line, "warning", s, ap);
+    }
+}
+
+void
+warning_for_asm VPROTO((rtx insn, char *s, ...))
+{
+#ifndef __STDC__
+  rtx insn;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  insn = va_arg (ap, rtx);
+  s = va_arg (ap, char *);
+#endif
+
+  v_warning_for_asm (insn, s, ap);
+  va_end (ap);
+}
+
+/* Report a warning at the current line number.  */
+
+static void
+vwarning (s, ap)
+     char *s;
+     va_list ap;
+{
+  v_warning_with_file_and_line (input_filename, lineno, s, ap);
+}
+
+void
+warning VPROTO((char *s, ...))
+{
+#ifndef __STDC__
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  s = va_arg (ap, char *);
+#endif
+
+  vwarning (s, ap);
+  va_end (ap);
+}
+
+/* These functions issue either warnings or errors depending on
+   -pedantic-errors.  */
+
+static void
+vpedwarn (s, ap)
+     char *s;
+     va_list ap;
+{
+  if (flag_pedantic_errors)
+    verror (s, ap);
+  else
+    vwarning (s, ap);
+}
+
+void
+pedwarn VPROTO((char *s, ...))
+{
+#ifndef __STDC__
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  s = va_arg (ap, char *);
+#endif
+
+  vpedwarn (s, ap);
+  va_end (ap);
+}
+
+static void
+v_pedwarn_with_decl (decl, s, ap)
+     tree decl;
+     char *s;
+     va_list ap;
+{
+  /* We don't want -pedantic-errors to cause the compilation to fail from
+     "errors" in system header files.  Sometimes fixincludes can't fix what's
+     broken (eg: unsigned char bitfields - fixing it may change the alignment
+     which will cause programs to mysteriously fail because the C library
+     or kernel uses the original layout).  There's no point in issuing a
+     warning either, it's just unnecessary noise.  */
+
+  if (! DECL_IN_SYSTEM_HEADER (decl))
+    {
+      if (flag_pedantic_errors)
+	v_error_with_decl (decl, s, ap);
+      else
+	v_warning_with_decl (decl, s, ap);
+    }
+}
+
+void
+pedwarn_with_decl VPROTO((tree decl, char *s, ...))
+{
+#ifndef __STDC__
+  tree decl;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  decl = va_arg (ap, tree);
+  s = va_arg (ap, char *);
+#endif
+
+  v_pedwarn_with_decl (decl, s, ap);
+  va_end (ap);
+}
+
+static void
+v_pedwarn_with_file_and_line (file, line, s, ap)
+     char *file;
+     int line;
+     char *s;
+     va_list ap;
+{
+  if (flag_pedantic_errors)
+    v_error_with_file_and_line (file, line, s, ap);
+  else
+    v_warning_with_file_and_line (file, line, s, ap);
+}
+
+void
+pedwarn_with_file_and_line VPROTO((char *file, int line, char *s, ...))
+{
+#ifndef __STDC__
+  char *file;
+  int line;
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  file = va_arg (ap, char *);
+  line = va_arg (ap, int);
+  s = va_arg (ap, char *);
+#endif
+
+  v_pedwarn_with_file_and_line (file, line, s, ap);
+  va_end (ap);
+}
+
+/* Apologize for not implementing some feature.  */
+
+static void
+vsorry (s, ap)
+     char *s;
+     va_list ap;
+{
+  sorrycount++;
+  if (input_filename)
+    fprintf (stderr, "%s:%d: ", input_filename, lineno);
+  else
+    fprintf (stderr, "%s: ", progname);
+  vmessage ("sorry, not implemented", s, ap);
+  fputc ('\n', stderr);
+}
+
+void
+sorry VPROTO((char *s, ...))
+{
+#ifndef __STDC__
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  s = va_arg (ap, char *);
+#endif
+
+  vsorry (s, ap);
+  va_end (ap);
+}
+
+/* Apologize for not implementing some feature, then quit.  */
+
+static void
+v_really_sorry (s, ap)
+     char *s;
+     va_list ap;
+{
+  sorrycount++;
+  if (input_filename)
+    fprintf (stderr, "%s:%d: ", input_filename, lineno);
+  else
+    fprintf (stderr, "%s: ", progname);
+  vmessage ("sorry, not implemented", s, ap);
+  fatal (" (fatal)\n");
+}
+
+void
+really_sorry VPROTO((char *s, ...))
+{
+#ifndef __STDC__
+  char *s;
+#endif
+  va_list ap;
+
+  VA_START (ap, s);
+
+#ifndef __STDC__
+  s = va_arg (ap, char *);
+#endif
+
+  v_really_sorry (s, ap);
+  va_end (ap);
+}
+
+/* More 'friendly' abort that prints the line and file.
+   config.h can #define abort fancy_abort if you like that sort of thing.
+
+   I don't think this is actually a good idea.
+   Other sorts of crashes will look a certain way.
+   It is a good thing if crashes from calling abort look the same way.
+     -- RMS  */
+
+void
+fancy_abort ()
+{
+  fatal ("internal gcc abort");
+}
+
+/* This calls abort and is used to avoid problems when abort if a macro.
+   It is used when we need to pass the address of abort.  */
+
+void
+do_abort ()
+{
+  abort ();
+}
+
+/* When `malloc.c' is compiled with `rcheck' defined,
+   it calls this function to report clobberage.  */
+
+void
+botch (s)
+{
+  abort ();
+}
+
+/* Same as `malloc' but report error if no memory available.  */
+
+char *
+xmalloc (size)
+     unsigned size;
+{
+  register char *value = (char *) malloc (size);
+  if (value == 0)
+    fatal ("virtual memory exhausted");
+  return value;
+}
+
+/* Same as `realloc' but report error if no memory available.  */
+
+char *
+xrealloc (ptr, size)
+     char *ptr;
+     int size;
+{
+  char *result = (char *) realloc (ptr, size);
+  if (!result)
+    fatal ("virtual memory exhausted");
+  return result;
+}
+
+/* Return the logarithm of X, base 2, considering X unsigned,
+   if X is a power of 2.  Otherwise, returns -1.
+
+   This should be used via the `exact_log2' macro.  */
+
+int
+exact_log2_wide (x)
+     register unsigned HOST_WIDE_INT x;
+{
+  register int log = 0;
+  /* Test for 0 or a power of 2.  */
+  if (x == 0 || x != (x & -x))
+    return -1;
+  while ((x >>= 1) != 0)
+    log++;
+  return log;
+}
+
+/* Given X, an unsigned number, return the largest int Y such that 2**Y <= X.
+   If X is 0, return -1.
+
+   This should be used via the floor_log2 macro.  */
+
+int
+floor_log2_wide (x)
+     register unsigned HOST_WIDE_INT x;
+{
+  register int log = -1;
+  while (x != 0)
+    log++,
+    x >>= 1;
+  return log;
+}
+
+int float_handled;
+jmp_buf float_handler;
+
+/* Specify where to longjmp to when a floating arithmetic error happens.
+   If HANDLER is 0, it means don't handle the errors any more.  */
+
+void
+set_float_handler (handler)
+     jmp_buf handler;
+{
+  float_handled = (handler != 0);
+  if (handler)
+    bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler));
+}
+
+/* Specify, in HANDLER, where to longjmp to when a floating arithmetic
+   error happens, pushing the previous specification into OLD_HANDLER.
+   Return an indication of whether there was a previous handler in effect.  */
+
+int
+push_float_handler (handler, old_handler)
+     jmp_buf handler, old_handler;
+{
+  int was_handled = float_handled;
+
+  float_handled = 1;
+  if (was_handled)
+    bcopy ((char *) float_handler, (char *) old_handler,
+	   sizeof (float_handler));
+
+  bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler));
+  return was_handled;
+}
+
+/* Restore the previous specification of whether and where to longjmp to
+   when a floating arithmetic error happens.  */
+
+void
+pop_float_handler (handled, handler)
+     int handled;
+     jmp_buf handler;
+{
+  float_handled = handled;
+  if (handled)
+    bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler));
+}
+
+/* Signals actually come here.  */
+
+static void
+float_signal (signo)
+     /* If this is missing, some compilers complain.  */
+     int signo;
+{
+  if (float_handled == 0)
+    abort ();
+#if defined (USG) || defined (hpux)
+  signal (SIGFPE, float_signal);  /* re-enable the signal catcher */
+#endif
+  float_handled = 0;
+  signal (SIGFPE, float_signal);
+  longjmp (float_handler, 1);
+}
+
+/* Handler for SIGPIPE.  */
+
+static void
+pipe_closed (signo)
+     /* If this is missing, some compilers complain.  */
+     int signo;
+{
+  fatal ("output pipe has been closed");
+}
+
+/* Strip off a legitimate source ending from the input string NAME of
+   length LEN.  Rather than having to know the names used by all of
+   our front ends, we strip off an ending of a period followed by one,
+   two, or three characters.  */
+
+void
+strip_off_ending (name, len)
+     char *name;
+     int len;
+{
+  if (len > 2 && name[len - 2] == '.')
+    name[len - 2] = '\0';
+  else if (len > 3 && name[len - 3] == '.')
+    name[len - 3] = '\0';
+  else if (len > 4 && name[len - 4] == '.')
+    name[len - 4] = '\0';
+}
+
+/* Output a quoted string.  */
+void
+output_quoted_string (asm_file, string)
+     FILE *asm_file;
+     char *string;
+{
+  char c;
+
+  putc ('\"', asm_file);
+  while ((c = *string++) != 0)
+    {
+      if (c == '\"' || c == '\\')
+	putc ('\\', asm_file);
+      putc (c, asm_file);
+    }
+  putc ('\"', asm_file);
+}
+
+/* Output a file name in the form wanted by System V.  */
+
+void
+output_file_directive (asm_file, input_name)
+     FILE *asm_file;
+     char *input_name;
+{
+  int len = strlen (input_name);
+  char *na = input_name + len;
+
+  /* NA gets INPUT_NAME sans directory names.  */
+  while (na > input_name)
+    {
+      if (na[-1] == '/')
+	break;
+      na--;
+    }
+
+#ifdef ASM_OUTPUT_MAIN_SOURCE_FILENAME
+  ASM_OUTPUT_MAIN_SOURCE_FILENAME (asm_file, na);
+#else
+#ifdef ASM_OUTPUT_SOURCE_FILENAME
+  ASM_OUTPUT_SOURCE_FILENAME (asm_file, na);
+#else
+  fprintf (asm_file, "\t.file\t");
+  output_quoted_string (asm_file, na);
+  fputc ('\n', asm_file);
+#endif
+#endif
+}
+
+/* Routine to build language identifier for object file. */
+static void
+output_lang_identify (asm_out_file)
+     FILE *asm_out_file;
+{
+  int len = strlen (lang_identify ()) + sizeof ("__gnu_compiled_") + 1;
+  char *s = (char *) alloca (len);
+  sprintf (s, "__gnu_compiled_%s", lang_identify ());
+  ASM_OUTPUT_LABEL (asm_out_file, s);
+}
+
+/* Routine to open a dump file.  */
+static FILE *
+open_dump_file (base_name, suffix)
+     char *base_name;
+     char *suffix;
+{
+  FILE *f;
+  char *dumpname = (char *) alloca (strlen (base_name) + strlen (suffix) + 1);
+
+  strcpy (dumpname, base_name);
+  strcat (dumpname, suffix);
+  f = fopen (dumpname, "w");
+  if (f == 0)
+    pfatal_with_name (dumpname);
+  return f;
+}
+
+/* Compile an entire file of output from cpp, named NAME.
+   Write a file of assembly output and various debugging dumps.  */
+
+static void
+compile_file (name)
+     char *name;
+{
+  tree globals;
+  int start_time;
+
+  int name_specified = name != 0;
+
+  if (dump_base_name == 0)
+    dump_base_name = name ? name : "gccdump";
+
+  parse_time = 0;
+  varconst_time = 0;
+  integration_time = 0;
+  jump_time = 0;
+  cse_time = 0;
+  loop_time = 0;
+  cse2_time = 0;
+  flow_time = 0;
+  combine_time = 0;
+  sched_time = 0;
+  local_alloc_time = 0;
+  global_alloc_time = 0;
+  sched2_time = 0;
+  dbr_sched_time = 0;
+  shorten_branch_time = 0;
+  stack_reg_time = 0;
+  final_time = 0;
+  symout_time = 0;
+  dump_time = 0;
+
+  /* Open input file.  */
+
+  if (name == 0 || !strcmp (name, "-"))
+    {
+      finput = stdin;
+      name = "stdin";
+    }
+  else
+    finput = fopen (name, "r");
+  if (finput == 0)
+    pfatal_with_name (name);
+
+#ifdef IO_BUFFER_SIZE
+  setvbuf (finput, (char *) xmalloc (IO_BUFFER_SIZE), _IOFBF, IO_BUFFER_SIZE);
+#endif
+
+  /* Initialize data in various passes.  */
+
+  init_obstacks ();
+  init_tree_codes ();
+  init_lex ();
+  /* Some of these really don't need to be called when generating bytecode,
+     but the options would have to be parsed first to know that. -bson */
+  init_rtl ();
+  init_emit_once (debug_info_level == DINFO_LEVEL_NORMAL
+		  || debug_info_level == DINFO_LEVEL_VERBOSE);
+  init_regs ();
+  init_decl_processing ();
+  init_optabs ();
+  init_stmt ();
+  init_expmed ();
+  init_expr_once ();
+  init_loop ();
+  init_reload ();
+
+  if (flag_caller_saves)
+    init_caller_save ();
+
+  /* If auxiliary info generation is desired, open the output file.
+     This goes in the same directory as the source file--unlike
+     all the other output files.  */
+  if (flag_gen_aux_info)
+    {
+      aux_info_file = fopen (aux_info_file_name, "w");
+      if (aux_info_file == 0)
+	pfatal_with_name (aux_info_file_name);
+    }
+
+  /* If rtl dump desired, open the output file.  */
+  if (rtl_dump)
+    rtl_dump_file = open_dump_file (dump_base_name, ".rtl");
+
+  /* If jump_opt dump desired, open the output file.  */
+  if (jump_opt_dump)
+    jump_opt_dump_file = open_dump_file (dump_base_name, ".jump");
+
+  /* If cse dump desired, open the output file.  */
+  if (cse_dump)
+    cse_dump_file = open_dump_file (dump_base_name, ".cse");
+
+  /* If loop dump desired, open the output file.  */
+  if (loop_dump)
+    loop_dump_file = open_dump_file (dump_base_name, ".loop");
+
+  /* If cse2 dump desired, open the output file.  */
+  if (cse2_dump)
+    cse2_dump_file = open_dump_file (dump_base_name, ".cse2");
+
+  /* If flow dump desired, open the output file.  */
+  if (flow_dump)
+    flow_dump_file = open_dump_file (dump_base_name, ".flow");
+
+  /* If combine dump desired, open the output file.  */
+  if (combine_dump)
+    combine_dump_file = open_dump_file (dump_base_name, ".combine");
+
+  /* If scheduling dump desired, open the output file.  */
+  if (sched_dump)
+    sched_dump_file = open_dump_file (dump_base_name, ".sched");
+
+  /* If local_reg dump desired, open the output file.  */
+  if (local_reg_dump)
+    local_reg_dump_file = open_dump_file (dump_base_name, ".lreg");
+
+  /* If global_reg dump desired, open the output file.  */
+  if (global_reg_dump)
+    global_reg_dump_file = open_dump_file (dump_base_name, ".greg");
+
+  /* If 2nd scheduling dump desired, open the output file.  */
+  if (sched2_dump)
+    sched2_dump_file = open_dump_file (dump_base_name, ".sched2");
+
+  /* If jump2_opt dump desired, open the output file.  */
+  if (jump2_opt_dump)
+    jump2_opt_dump_file = open_dump_file (dump_base_name, ".jump2");
+
+  /* If dbr_sched dump desired, open the output file.  */
+  if (dbr_sched_dump)
+    dbr_sched_dump_file = open_dump_file (dump_base_name, ".dbr");
+
+#ifdef STACK_REGS
+
+  /* If stack_reg dump desired, open the output file.  */
+  if (stack_reg_dump)
+    stack_reg_dump_file = open_dump_file (dump_base_name, ".stack");
+
+#endif
+
+  /* Open assembler code output file.  */
+
+  if (! name_specified && asm_file_name == 0)
+    asm_out_file = stdout;
+  else
+    {
+      int len = strlen (dump_base_name);
+      register char *dumpname = (char *) xmalloc (len + 6);
+      strcpy (dumpname, dump_base_name);
+      strip_off_ending (dumpname, len);
+      strcat (dumpname, ".s");
+      if (asm_file_name == 0)
+	{
+	  asm_file_name = (char *) xmalloc (strlen (dumpname) + 1);
+	  strcpy (asm_file_name, dumpname);
+	}
+      if (!strcmp (asm_file_name, "-"))
+	asm_out_file = stdout;
+      else
+	asm_out_file = fopen (asm_file_name, "w");
+      if (asm_out_file == 0)
+	pfatal_with_name (asm_file_name);
+    }
+
+#ifdef IO_BUFFER_SIZE
+  setvbuf (asm_out_file, (char *) xmalloc (IO_BUFFER_SIZE),
+	   _IOFBF, IO_BUFFER_SIZE);
+#endif
+
+  input_filename = name;
+
+  /* Put an entry on the input file stack for the main input file.  */
+  input_file_stack
+    = (struct file_stack *) xmalloc (sizeof (struct file_stack));
+  input_file_stack->next = 0;
+  input_file_stack->name = input_filename;
+
+  /* Perform language-specific initialization.
+     This may set main_input_filename.  */
+  lang_init ();
+
+  /* If the input doesn't start with a #line, use the input name
+     as the official input file name.  */
+  if (main_input_filename == 0)
+    main_input_filename = name;
+
+  if (!output_bytecode)
+    {
+      ASM_FILE_START (asm_out_file);
+    }
+
+  /* Output something to inform GDB that this compilation was by GCC.  Also
+     serves to tell GDB file consists of bytecodes. */
+  if (output_bytecode)
+    fprintf (asm_out_file, "bc_gcc2_compiled.:\n");
+  else
+    {
+#ifndef ASM_IDENTIFY_GCC
+      fprintf (asm_out_file, "gcc2_compiled.:\n");
+#else
+      ASM_IDENTIFY_GCC (asm_out_file);
+#endif
+    }
+
+  /* Output something to identify which front-end produced this file. */
+#ifdef ASM_IDENTIFY_LANGUAGE
+  ASM_IDENTIFY_LANGUAGE (asm_out_file);
+#endif
+
+  if (output_bytecode)
+    {
+      if (profile_flag || profile_block_flag)
+	error ("profiling not supported in bytecode compilation");
+    }
+  else
+    {
+      /* ??? Note: There used to be a conditional here
+	 to call assemble_zeros without fail if DBX_DEBUGGING_INFO is defined.
+	 This was to guarantee separation between gcc_compiled. and
+	 the first function, for the sake of dbx on Suns.
+	 However, having the extra zero here confused the Emacs
+	 code for unexec, and might confuse other programs too.
+	 Therefore, I took out that change.
+	 In future versions we should find another way to solve
+	 that dbx problem.  -- rms, 23 May 93.  */
+      
+      /* Don't let the first function fall at the same address
+	 as gcc_compiled., if profiling.  */
+      if (profile_flag || profile_block_flag)
+	assemble_zeros (UNITS_PER_WORD);
+    }
+
+  /* If dbx symbol table desired, initialize writing it
+     and output the predefined types.  */
+#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
+  if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG)
+    TIMEVAR (symout_time, dbxout_init (asm_out_file, main_input_filename,
+				       getdecls ()));
+#endif
+#ifdef SDB_DEBUGGING_INFO
+  if (write_symbols == SDB_DEBUG)
+    TIMEVAR (symout_time, sdbout_init (asm_out_file, main_input_filename,
+				       getdecls ()));
+#endif
+#ifdef DWARF_DEBUGGING_INFO
+  if (write_symbols == DWARF_DEBUG)
+    TIMEVAR (symout_time, dwarfout_init (asm_out_file, main_input_filename));
+#endif
+
+  /* Initialize yet another pass.  */
+
+  if (!output_bytecode)
+    init_final (main_input_filename);
+
+  start_time = get_run_time ();
+
+  /* Call the parser, which parses the entire file
+     (calling rest_of_compilation for each function).  */
+
+  if (yyparse () != 0)
+    {
+      if (errorcount == 0)
+	fprintf (stderr, "Errors detected in input file (your bison.simple is out of date)");
+
+      /* In case there were missing closebraces,
+	 get us back to the global binding level.  */
+      while (! global_bindings_p ())
+	poplevel (0, 0, 0);
+    }
+
+  /* Compilation is now finished except for writing
+     what's left of the symbol table output.  */
+
+  parse_time += get_run_time () - start_time;
+
+  parse_time -= integration_time;
+  parse_time -= varconst_time;
+
+  globals = getdecls ();
+
+  /* Really define vars that have had only a tentative definition.
+     Really output inline functions that must actually be callable
+     and have not been output so far.  */
+
+  {
+    int len = list_length (globals);
+    tree *vec = (tree *) alloca (sizeof (tree) * len);
+    int i;
+    tree decl;
+    int reconsider = 1;
+
+    /* Process the decls in reverse order--earliest first.
+       Put them into VEC from back to front, then take out from front.  */
+
+    for (i = 0, decl = globals; i < len; i++, decl = TREE_CHAIN (decl))
+      vec[len - i - 1] = decl;
+
+    for (i = 0; i < len; i++)
+      {
+	decl = vec[i];
+
+	/* We're not deferring this any longer.  */
+	DECL_DEFER_OUTPUT (decl) = 0;
+
+	if (TREE_CODE (decl) == VAR_DECL && DECL_SIZE (decl) == 0
+	    && incomplete_decl_finalize_hook != 0)
+	  (*incomplete_decl_finalize_hook) (decl);
+      }
+
+    /* Now emit any global variables or functions that we have been putting
+       off.  We need to loop in case one of the things emitted here
+       references another one which comes earlier in the list.  */
+    while (reconsider)
+      {
+	reconsider = 0;
+	for (i = 0; i < len; i++)
+	  {
+	    decl = vec[i];
+
+	    if (TREE_ASM_WRITTEN (decl) || DECL_EXTERNAL (decl))
+	      continue;
+
+	    /* Don't write out static consts, unless we still need them.
+
+	       We also keep static consts if not optimizing (for debugging).
+	       ??? They might be better written into the debug information.
+	       This is possible when using DWARF.
+
+	       A language processor that wants static constants to be always
+	       written out (even if it is not used) is responsible for
+	       calling rest_of_decl_compilation itself.  E.g. the C front-end
+	       calls rest_of_decl_compilation from finish_decl.
+	       One motivation for this is that is conventional in some
+	       environments to write things like:
+	           static const char rcsid[] = "... version string ...";
+	       intending to force the string to be in the executable.
+
+	       A language processor that would prefer to have unneeded
+	       static constants "optimized away" would just defer writing
+	       them out until here.  E.g. C++ does this, because static
+	       constants are often defined in header files.
+
+	       ??? A tempting alternative (for both C and C++) would be
+	       to force a constant to be written if and only if it is
+	       defined in a main file, as opposed to an include file. */
+
+	    if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl)
+		&& (! TREE_READONLY (decl)
+		    || TREE_PUBLIC (decl)
+		    || !optimize
+		    || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
+	      {
+		reconsider = 1;
+		rest_of_decl_compilation (decl, NULL_PTR, 1, 1);
+	      }
+
+	    if (TREE_CODE (decl) == FUNCTION_DECL
+		&& DECL_INITIAL (decl) != 0
+		&& DECL_SAVED_INSNS (decl) != 0
+		&& (flag_keep_inline_functions
+		    || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
+	      {
+		reconsider = 1;
+		temporary_allocation ();
+		output_inline_function (decl);
+		permanent_allocation (1);
+	      }
+	  }
+      }
+
+    for (i = 0; i < len; i++)
+      {
+	decl = vec[i];
+
+	if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl)
+	    && ! TREE_ASM_WRITTEN (decl))
+	  /* Cancel the RTL for this decl so that, if debugging info
+	     output for global variables is still to come,
+	     this one will be omitted.  */
+	  DECL_RTL (decl) = NULL;
+
+	/* Warn about any function
+	   declared static but not defined.
+	   We don't warn about variables,
+	   because many programs have static variables
+	   that exist only to get some text into the object file.  */
+	if (TREE_CODE (decl) == FUNCTION_DECL
+	    && (warn_unused
+		|| TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
+	    && DECL_INITIAL (decl) == 0
+	    && DECL_EXTERNAL (decl)
+	    && ! TREE_PUBLIC (decl))
+	  {
+	    pedwarn_with_decl (decl, 
+			       "`%s' declared `static' but never defined");
+	    /* This symbol is effectively an "extern" declaration now.  */
+	    TREE_PUBLIC (decl) = 1;
+	    assemble_external (decl);
+	  }
+
+	/* Warn about static fns or vars defined but not used,
+	   but not about inline functions or static consts
+	   since defining those in header files is normal practice.  */
+	if (warn_unused
+	    && ((TREE_CODE (decl) == FUNCTION_DECL && ! DECL_INLINE (decl))
+		|| (TREE_CODE (decl) == VAR_DECL && ! TREE_READONLY (decl)))
+	    && ! DECL_IN_SYSTEM_HEADER (decl)
+	    && ! DECL_EXTERNAL (decl)
+	    && ! TREE_PUBLIC (decl)
+	    && ! TREE_USED (decl)
+	    && ! DECL_REGISTER (decl)
+	    /* The TREE_USED bit for file-scope decls
+	       is kept in the identifier, to handle multiple
+	       external decls in different scopes.  */
+	    && ! TREE_USED (DECL_NAME (decl)))
+	  warning_with_decl (decl, "`%s' defined but not used");
+
+#ifdef SDB_DEBUGGING_INFO
+	/* The COFF linker can move initialized global vars to the end.
+	   And that can screw up the symbol ordering.
+	   By putting the symbols in that order to begin with,
+	   we avoid a problem.  mcsun!unido!fauern!tumuc!pes@uunet.uu.net.  */
+	if (write_symbols == SDB_DEBUG && TREE_CODE (decl) == VAR_DECL
+	    && TREE_PUBLIC (decl) && DECL_INITIAL (decl)
+	    && ! DECL_EXTERNAL (decl)
+	    && DECL_RTL (decl) != 0)
+	  TIMEVAR (symout_time, sdbout_symbol (decl, 0));
+
+	/* Output COFF information for non-global
+	   file-scope initialized variables. */
+	if (write_symbols == SDB_DEBUG
+	    && TREE_CODE (decl) == VAR_DECL
+	    && DECL_INITIAL (decl)
+	    && ! DECL_EXTERNAL (decl)
+	    && DECL_RTL (decl) != 0
+	    && GET_CODE (DECL_RTL (decl)) == MEM)
+	  TIMEVAR (symout_time, sdbout_toplevel_data (decl));
+#endif /* SDB_DEBUGGING_INFO */
+#ifdef DWARF_DEBUGGING_INFO
+	/* Output DWARF information for file-scope tentative data object
+	   declarations, file-scope (extern) function declarations (which
+	   had no corresponding body) and file-scope tagged type declarations
+	   and definitions which have not yet been forced out.  */
+
+	if (write_symbols == DWARF_DEBUG
+	    && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl)))
+	  TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 1));
+#endif
+      }
+  }
+
+  /* Write out any pending weak symbol declarations.  */
+
+  weak_finish ();
+
+  /* Do dbx symbols */
+#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
+  if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG)
+    TIMEVAR (symout_time,
+	     {
+	       dbxout_finish (asm_out_file, main_input_filename);
+	     });
+#endif
+
+#ifdef DWARF_DEBUGGING_INFO
+  if (write_symbols == DWARF_DEBUG)
+    TIMEVAR (symout_time,
+	     {
+	       dwarfout_finish ();
+	     });
+#endif
+
+  /* Output some stuff at end of file if nec.  */
+
+  if (!output_bytecode)
+    {
+      end_final (main_input_filename);
+
+#ifdef ASM_FILE_END
+      ASM_FILE_END (asm_out_file);
+#endif
+    }
+
+  /* Language-specific end of compilation actions.  */
+
+  lang_finish ();
+
+  if (output_bytecode)
+    bc_write_file (asm_out_file);
+
+  /* Close the dump files.  */
+
+  if (flag_gen_aux_info)
+    {
+      fclose (aux_info_file);
+      if (errorcount)
+	unlink (aux_info_file_name);
+    }
+
+  if (rtl_dump)
+    fclose (rtl_dump_file);
+
+  if (jump_opt_dump)
+    fclose (jump_opt_dump_file);
+
+  if (cse_dump)
+    fclose (cse_dump_file);
+
+  if (loop_dump)
+    fclose (loop_dump_file);
+
+  if (cse2_dump)
+    fclose (cse2_dump_file);
+
+  if (flow_dump)
+    fclose (flow_dump_file);
+
+  if (combine_dump)
+    {
+      dump_combine_total_stats (combine_dump_file);
+      fclose (combine_dump_file);
+    }
+
+  if (sched_dump)
+    fclose (sched_dump_file);
+
+  if (local_reg_dump)
+    fclose (local_reg_dump_file);
+
+  if (global_reg_dump)
+    fclose (global_reg_dump_file);
+
+  if (sched2_dump)
+    fclose (sched2_dump_file);
+
+  if (jump2_opt_dump)
+    fclose (jump2_opt_dump_file);
+
+  if (dbr_sched_dump)
+    fclose (dbr_sched_dump_file);
+
+#ifdef STACK_REGS
+  if (stack_reg_dump)
+    fclose (stack_reg_dump_file);
+#endif
+
+  /* Close non-debugging input and output files.  Take special care to note
+     whether fclose returns an error, since the pages might still be on the
+     buffer chain while the file is open.  */
+
+  fclose (finput);
+  if (ferror (asm_out_file) != 0 || fclose (asm_out_file) != 0)
+    fatal_io_error (asm_file_name);
+
+  /* Print the times.  */
+
+  if (! quiet_flag)
+    {
+      fprintf (stderr,"\n");
+      print_time ("parse", parse_time);
+
+      if (!output_bytecode)
+	{
+	  print_time ("integration", integration_time);
+	  print_time ("jump", jump_time);
+	  print_time ("cse", cse_time);
+	  print_time ("loop", loop_time);
+	  print_time ("cse2", cse2_time);
+	  print_time ("flow", flow_time);
+	  print_time ("combine", combine_time);
+	  print_time ("sched", sched_time);
+	  print_time ("local-alloc", local_alloc_time);
+	  print_time ("global-alloc", global_alloc_time);
+	  print_time ("sched2", sched2_time);
+	  print_time ("dbranch", dbr_sched_time);
+	  print_time ("shorten-branch", shorten_branch_time);
+	  print_time ("stack-reg", stack_reg_time);
+	  print_time ("final", final_time);
+	  print_time ("varconst", varconst_time);
+	  print_time ("symout", symout_time);
+	  print_time ("dump", dump_time);
+	}
+    }
+}
+
+/* This is called from various places for FUNCTION_DECL, VAR_DECL,
+   and TYPE_DECL nodes.
+
+   This does nothing for local (non-static) variables.
+   Otherwise, it sets up the RTL and outputs any assembler code
+   (label definition, storage allocation and initialization).
+
+   DECL is the declaration.  If ASMSPEC is nonzero, it specifies
+   the assembler symbol name to be used.  TOP_LEVEL is nonzero
+   if this declaration is not within a function.  */
+
+void
+rest_of_decl_compilation (decl, asmspec, top_level, at_end)
+     tree decl;
+     char *asmspec;
+     int top_level;
+     int at_end;
+{
+  /* Declarations of variables, and of functions defined elsewhere.  */
+
+/* The most obvious approach, to put an #ifndef around where
+   this macro is used, doesn't work since it's inside a macro call.  */
+#ifndef ASM_FINISH_DECLARE_OBJECT
+#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP, END)
+#endif
+
+  /* Forward declarations for nested functions are not "external",
+     but we need to treat them as if they were.  */
+  if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)
+      || TREE_CODE (decl) == FUNCTION_DECL)
+    TIMEVAR (varconst_time,
+	     {
+	       make_decl_rtl (decl, asmspec, top_level);
+	       /* Initialized extern variable exists to be replaced
+		  with its value, or represents something that will be
+		  output in another file.  */
+	       if (! (TREE_CODE (decl) == VAR_DECL
+		      && DECL_EXTERNAL (decl) && TREE_READONLY (decl)
+		      && DECL_INITIAL (decl) != 0
+		      && DECL_INITIAL (decl) != error_mark_node))
+		 /* Don't output anything
+		    when a tentative file-scope definition is seen.
+		    But at end of compilation, do output code for them.  */
+		 if (! (! at_end && top_level
+			&& (DECL_INITIAL (decl) == 0
+			    || DECL_INITIAL (decl) == error_mark_node)))
+		   assemble_variable (decl, top_level, at_end, 0);
+	       if (decl == last_assemble_variable_decl)
+		 {
+		   ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl,
+					      top_level, at_end);
+		 }
+	     });
+  else if (DECL_REGISTER (decl) && asmspec != 0)
+    {
+      if (decode_reg_name (asmspec) >= 0)
+	{
+	  DECL_RTL (decl) = 0;
+	  make_decl_rtl (decl, asmspec, top_level);
+	}
+      else
+	error ("invalid register name `%s' for register variable", asmspec);
+    }
+#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
+  else if ((write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG)
+	   && TREE_CODE (decl) == TYPE_DECL)
+    TIMEVAR (symout_time, dbxout_symbol (decl, 0));
+#endif
+#ifdef SDB_DEBUGGING_INFO
+  else if (write_symbols == SDB_DEBUG && top_level
+	   && TREE_CODE (decl) == TYPE_DECL)
+    TIMEVAR (symout_time, sdbout_symbol (decl, 0));
+#endif
+}
+
+/* Called after finishing a record, union or enumeral type.  */
+
+void
+rest_of_type_compilation (type, toplev)
+     tree type;
+     int toplev;
+{
+#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
+  if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG)
+    TIMEVAR (symout_time, dbxout_symbol (TYPE_STUB_DECL (type), !toplev));
+#endif
+#ifdef SDB_DEBUGGING_INFO
+  if (write_symbols == SDB_DEBUG)
+    TIMEVAR (symout_time, sdbout_symbol (TYPE_STUB_DECL (type), !toplev));
+#endif
+}
+
+/* This is called from finish_function (within yyparse)
+   after each top-level definition is parsed.
+   It is supposed to compile that function or variable
+   and output the assembler code for it.
+   After we return, the tree storage is freed.  */
+
+void
+rest_of_compilation (decl)
+     tree decl;
+{
+  register rtx insns;
+  int start_time = get_run_time ();
+  int tem;
+  /* Nonzero if we have saved the original DECL_INITIAL of the function,
+     to be restored after we finish compiling the function
+     (for use when compiling inline calls to this function).  */
+  tree saved_block_tree = 0;
+  /* Likewise, for DECL_ARGUMENTS.  */
+  tree saved_arguments = 0;
+  int failure = 0;
+
+  if (output_bytecode)
+    return;
+
+  /* If we are reconsidering an inline function
+     at the end of compilation, skip the stuff for making it inline.  */
+
+  if (DECL_SAVED_INSNS (decl) == 0)
+    {
+      int specd = DECL_INLINE (decl);
+      char *lose;
+
+      /* If requested, consider whether to make this function inline.  */
+      if (specd || flag_inline_functions)
+	TIMEVAR (integration_time,
+		 {
+		   lose = function_cannot_inline_p (decl);
+		   /* If not optimizing, then make sure the DECL_INLINE
+		      bit is off.  */
+		   if (lose || ! optimize)
+		     {
+		       if (warn_inline && specd)
+			 warning_with_decl (decl, lose);
+		       DECL_INLINE (decl) = 0;
+		       DECL_ABSTRACT_ORIGIN (decl) = 0;
+		       /* Don't really compile an extern inline function.
+			  If we can't make it inline, pretend
+			  it was only declared.  */
+		       if (DECL_EXTERNAL (decl))
+			 {
+			   DECL_INITIAL (decl) = 0;
+			   goto exit_rest_of_compilation;
+			 }
+		     }
+		   else
+		     DECL_INLINE (decl) = 1;
+		 });
+
+      insns = get_insns ();
+
+      /* Dump the rtl code if we are dumping rtl.  */
+
+      if (rtl_dump)
+	TIMEVAR (dump_time,
+		 {
+		   fprintf (rtl_dump_file, "\n;; Function %s\n\n",
+			    IDENTIFIER_POINTER (DECL_NAME (decl)));
+		   if (DECL_SAVED_INSNS (decl))
+		     fprintf (rtl_dump_file, ";; (integrable)\n\n");
+		   print_rtl (rtl_dump_file, insns);
+		   fflush (rtl_dump_file);
+		 });
+
+      /* If function is inline, and we don't yet know whether to
+	 compile it by itself, defer decision till end of compilation.
+	 finish_compilation will call rest_of_compilation again
+	 for those functions that need to be output.  Also defer those
+	 functions that we are supposed to defer.  */
+
+      if (DECL_DEFER_OUTPUT (decl)
+	  || ((specd || DECL_INLINE (decl))
+	      && ((! TREE_PUBLIC (decl) && ! TREE_ADDRESSABLE (decl)
+		   && ! flag_keep_inline_functions)
+		  || DECL_EXTERNAL (decl))))
+	{
+	  DECL_DEFER_OUTPUT (decl) = 1;
+
+	  /* If -Wreturn-type, we have to do a bit of compilation.  */
+	  if (! warn_return_type)
+	    {
+#ifdef DWARF_DEBUGGING_INFO
+	      /* Generate the DWARF info for the "abstract" instance
+		 of a function which we may later generate inlined and/or
+		 out-of-line instances of.  */
+	      if (write_symbols == DWARF_DEBUG)
+		{
+		  set_decl_abstract_flags (decl, 1);
+		  TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0));
+		  set_decl_abstract_flags (decl, 0);
+		}
+#endif
+	      TIMEVAR (integration_time, save_for_inline_nocopy (decl));
+	      goto exit_rest_of_compilation;
+	    }
+	}
+
+      /* If we have to compile the function now, save its rtl and subdecls
+	 so that its compilation will not affect what others get.  */
+      if (DECL_INLINE (decl) || DECL_DEFER_OUTPUT (decl))
+	{
+#ifdef DWARF_DEBUGGING_INFO
+	  /* Generate the DWARF info for the "abstract" instance of
+	     a function which we will generate an out-of-line instance
+	     of almost immediately (and which we may also later generate
+	     various inlined instances of).  */
+	  if (write_symbols == DWARF_DEBUG)
+	    {
+	      set_decl_abstract_flags (decl, 1);
+	      TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0));
+	      set_decl_abstract_flags (decl, 0);
+	    }
+#endif
+	  saved_block_tree = DECL_INITIAL (decl);
+	  saved_arguments = DECL_ARGUMENTS (decl);
+	  TIMEVAR (integration_time, save_for_inline_copying (decl));
+	}
+
+      /* If specified extern inline but we aren't inlining it, we are
+	 done.  */
+      if (specd && DECL_EXTERNAL (decl))
+	goto exit_rest_of_compilation;
+    }
+
+  if (! DECL_DEFER_OUTPUT (decl))
+    TREE_ASM_WRITTEN (decl) = 1;
+
+  /* Now that integrate will no longer see our rtl, we need not distinguish
+     between the return value of this function and the return value of called
+     functions.  */
+  rtx_equal_function_value_matters = 0;
+
+  /* Don't return yet if -Wreturn-type; we need to do jump_optimize.  */
+  if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type)
+    {
+      goto exit_rest_of_compilation;
+    }
+
+  /* From now on, allocate rtl in current_obstack, not in saveable_obstack.
+     Note that that may have been done above, in save_for_inline_copying.
+     The call to resume_temporary_allocation near the end of this function
+     goes back to the usual state of affairs.  */
+
+  rtl_in_current_obstack ();
+
+#ifdef FINALIZE_PIC
+  /* If we are doing position-independent code generation, now
+     is the time to output special prologues and epilogues.
+     We do not want to do this earlier, because it just clutters
+     up inline functions with meaningless insns.  */
+  if (flag_pic)
+    FINALIZE_PIC;
+#endif
+
+  insns = get_insns ();
+
+  /* Copy any shared structure that should not be shared.  */
+
+  unshare_all_rtl (insns);
+
+  /* Instantiate all virtual registers.  */
+
+  instantiate_virtual_regs (current_function_decl, get_insns ());
+
+  /* See if we have allocated stack slots that are not directly addressable.
+     If so, scan all the insns and create explicit address computation
+     for all references to such slots.  */
+/*   fixup_stack_slots (); */
+
+  /* Do jump optimization the first time, if -opt.
+     Also do it if -W, but in that case it doesn't change the rtl code,
+     it only computes whether control can drop off the end of the function.  */
+
+  if (optimize > 0 || extra_warnings || warn_return_type
+      /* If function is `noreturn', we should warn if it tries to return.  */
+      || TREE_THIS_VOLATILE (decl))
+    {
+      TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0));
+      TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1));
+    }
+
+  /* Now is when we stop if -fsyntax-only and -Wreturn-type.  */
+  if (rtl_dump_and_exit || flag_syntax_only || DECL_DEFER_OUTPUT (decl))
+    goto exit_rest_of_compilation;
+
+  /* Dump rtl code after jump, if we are doing that.  */
+
+  if (jump_opt_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (jump_opt_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	       print_rtl (jump_opt_dump_file, insns);
+	       fflush (jump_opt_dump_file);
+	     });
+
+  /* Perform common subexpression elimination.
+     Nonzero value from `cse_main' means that jumps were simplified
+     and some code may now be unreachable, so do
+     jump optimization again.  */
+
+  if (cse_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (cse_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	     });
+
+  if (optimize > 0)
+    {
+      TIMEVAR (cse_time, reg_scan (insns, max_reg_num (), 1));
+
+      if (flag_thread_jumps)
+	/* Hacks by tiemann & kenner.  */
+	TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 1));
+
+      TIMEVAR (cse_time, tem = cse_main (insns, max_reg_num (),
+					 0, cse_dump_file));
+      TIMEVAR (cse_time, delete_dead_from_cse (insns, max_reg_num ()));
+
+      if (tem || optimize > 1)
+	TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 0));
+    }
+
+  /* Dump rtl code after cse, if we are doing that.  */
+
+  if (cse_dump)
+    TIMEVAR (dump_time,
+	     {
+	       print_rtl (cse_dump_file, insns);
+	       fflush (cse_dump_file);
+	     });
+
+  if (loop_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (loop_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	     });
+
+  /* Move constant computations out of loops.  */
+
+  if (optimize > 0)
+    {
+      TIMEVAR (loop_time,
+	       {
+		 loop_optimize (insns, loop_dump_file);
+	       });
+    }
+
+  /* Dump rtl code after loop opt, if we are doing that.  */
+
+  if (loop_dump)
+    TIMEVAR (dump_time,
+	     {
+	       print_rtl (loop_dump_file, insns);
+	       fflush (loop_dump_file);
+	     });
+
+  if (cse2_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (cse2_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	     });
+
+  if (optimize > 0 && flag_rerun_cse_after_loop)
+    {
+      /* Running another jump optimization pass before the second
+	 cse pass sometimes simplifies the RTL enough to allow
+	 the second CSE pass to do a better job.  Jump_optimize can change
+	 max_reg_num so we must rerun reg_scan afterwards.
+	 ??? Rework to not call reg_scan so often.  */
+      TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0));
+      TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1));
+
+      TIMEVAR (cse2_time, reg_scan (insns, max_reg_num (), 0));
+      TIMEVAR (cse2_time, tem = cse_main (insns, max_reg_num (),
+					  1, cse2_dump_file));
+      if (tem)
+	TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 0));
+    }
+
+  if (optimize > 0 && flag_thread_jumps)
+    /* This pass of jump threading straightens out code
+       that was kinked by loop optimization.  */
+    TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 0));
+
+  /* Dump rtl code after cse, if we are doing that.  */
+
+  if (cse2_dump)
+    TIMEVAR (dump_time,
+	     {
+	       print_rtl (cse2_dump_file, insns);
+	       fflush (cse2_dump_file);
+	     });
+
+  /* We are no longer anticipating cse in this function, at least.  */
+
+  cse_not_expected = 1;
+
+  /* Now we choose between stupid (pcc-like) register allocation
+     (if we got the -noreg switch and not -opt)
+     and smart register allocation.  */
+
+  if (optimize > 0)			/* Stupid allocation probably won't work */
+    obey_regdecls = 0;		/* if optimizations being done.  */
+
+  regclass_init ();
+
+  /* Print function header into flow dump now
+     because doing the flow analysis makes some of the dump.  */
+
+  if (flow_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (flow_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	     });
+
+  if (obey_regdecls)
+    {
+      TIMEVAR (flow_time,
+	       {
+		 regclass (insns, max_reg_num ());
+		 stupid_life_analysis (insns, max_reg_num (),
+				       flow_dump_file);
+	       });
+    }
+  else
+    {
+      /* Do control and data flow analysis,
+	 and write some of the results to dump file.  */
+
+      TIMEVAR (flow_time, flow_analysis (insns, max_reg_num (),
+					 flow_dump_file));
+      if (warn_uninitialized)
+	{
+	  uninitialized_vars_warning (DECL_INITIAL (decl));
+	  setjmp_args_warning ();
+	}
+    }
+
+  /* Dump rtl after flow analysis.  */
+
+  if (flow_dump)
+    TIMEVAR (dump_time,
+	     {
+	       print_rtl (flow_dump_file, insns);
+	       fflush (flow_dump_file);
+	     });
+
+  /* If -opt, try combining insns through substitution.  */
+
+  if (optimize > 0)
+    TIMEVAR (combine_time, combine_instructions (insns, max_reg_num ()));
+
+  /* Dump rtl code after insn combination.  */
+
+  if (combine_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (combine_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	       dump_combine_stats (combine_dump_file);
+	       print_rtl (combine_dump_file, insns);
+	       fflush (combine_dump_file);
+	     });
+
+  /* Print function header into sched dump now
+     because doing the sched analysis makes some of the dump.  */
+
+  if (sched_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (sched_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	     });
+
+  if (optimize > 0 && flag_schedule_insns)
+    {
+      /* Do control and data sched analysis,
+	 and write some of the results to dump file.  */
+
+      TIMEVAR (sched_time, schedule_insns (sched_dump_file));
+    }
+
+  /* Dump rtl after instruction scheduling.  */
+
+  if (sched_dump)
+    TIMEVAR (dump_time,
+	     {
+	       print_rtl (sched_dump_file, insns);
+	       fflush (sched_dump_file);
+	     });
+
+  /* Unless we did stupid register allocation,
+     allocate pseudo-regs that are used only within 1 basic block.  */
+
+  if (!obey_regdecls)
+    TIMEVAR (local_alloc_time,
+	     {
+	       regclass (insns, max_reg_num ());
+	       local_alloc ();
+	     });
+
+  /* Dump rtl code after allocating regs within basic blocks.  */
+
+  if (local_reg_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (local_reg_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	       dump_flow_info (local_reg_dump_file);
+	       dump_local_alloc (local_reg_dump_file);
+	       print_rtl (local_reg_dump_file, insns);
+	       fflush (local_reg_dump_file);
+	     });
+
+  if (global_reg_dump)
+    TIMEVAR (dump_time,
+	     fprintf (global_reg_dump_file, "\n;; Function %s\n\n",
+		      IDENTIFIER_POINTER (DECL_NAME (decl))));
+
+  /* Unless we did stupid register allocation,
+     allocate remaining pseudo-regs, then do the reload pass
+     fixing up any insns that are invalid.  */
+
+  TIMEVAR (global_alloc_time,
+	   {
+	     if (!obey_regdecls)
+	       failure = global_alloc (global_reg_dump_file);
+	     else
+	       failure = reload (insns, 0, global_reg_dump_file);
+	   });
+
+  if (global_reg_dump)
+    TIMEVAR (dump_time,
+	     {
+	       dump_global_regs (global_reg_dump_file);
+	       print_rtl (global_reg_dump_file, insns);
+	       fflush (global_reg_dump_file);
+	     });
+
+  if (failure)
+    goto exit_rest_of_compilation;
+
+  reload_completed = 1;
+
+  /* On some machines, the prologue and epilogue code, or parts thereof,
+     can be represented as RTL.  Doing so lets us schedule insns between
+     it and the rest of the code and also allows delayed branch
+     scheduling to operate in the epilogue.  */
+
+  thread_prologue_and_epilogue_insns (insns);
+
+  if (optimize > 0 && flag_schedule_insns_after_reload)
+    {
+      if (sched2_dump)
+	TIMEVAR (dump_time,
+		 {
+		   fprintf (sched2_dump_file, "\n;; Function %s\n\n",
+			    IDENTIFIER_POINTER (DECL_NAME (decl)));
+		 });
+
+      /* Do control and data sched analysis again,
+	 and write some more of the results to dump file.  */
+
+      TIMEVAR (sched2_time, schedule_insns (sched2_dump_file));
+
+      /* Dump rtl after post-reorder instruction scheduling.  */
+
+      if (sched2_dump)
+	TIMEVAR (dump_time,
+		 {
+		   print_rtl (sched2_dump_file, insns);
+		   fflush (sched2_dump_file);
+		 });
+    }
+
+#ifdef LEAF_REGISTERS
+  leaf_function = 0;
+  if (optimize > 0 && only_leaf_regs_used () && leaf_function_p ())
+    leaf_function = 1;
+#endif
+
+  /* One more attempt to remove jumps to .+1
+     left by dead-store-elimination.
+     Also do cross-jumping this time
+     and delete no-op move insns.  */
+
+  if (optimize > 0)
+    {
+      TIMEVAR (jump_time, jump_optimize (insns, 1, 1, 0));
+    }
+
+  /* Dump rtl code after jump, if we are doing that.  */
+
+  if (jump2_opt_dump)
+    TIMEVAR (dump_time,
+	     {
+	       fprintf (jump2_opt_dump_file, "\n;; Function %s\n\n",
+			IDENTIFIER_POINTER (DECL_NAME (decl)));
+	       print_rtl (jump2_opt_dump_file, insns);
+	       fflush (jump2_opt_dump_file);
+	     });
+
+  /* If a machine dependent reorganization is needed, call it.  */
+#ifdef MACHINE_DEPENDENT_REORG
+   MACHINE_DEPENDENT_REORG (insns);
+#endif
+
+  /* If a scheduling pass for delayed branches is to be done,
+     call the scheduling code. */
+
+#ifdef DELAY_SLOTS
+  if (optimize > 0 && flag_delayed_branch)
+    {
+      TIMEVAR (dbr_sched_time, dbr_schedule (insns, dbr_sched_dump_file));
+      if (dbr_sched_dump)
+	{
+	  TIMEVAR (dump_time,
+		 {
+		   fprintf (dbr_sched_dump_file, "\n;; Function %s\n\n",
+			    IDENTIFIER_POINTER (DECL_NAME (decl)));
+		   print_rtl (dbr_sched_dump_file, insns);
+		   fflush (dbr_sched_dump_file);
+		 });
+	}
+    }
+#endif
+
+  /* Shorten branches.  */
+  TIMEVAR (shorten_branch_time,
+	   {
+	     shorten_branches (get_insns ());
+	   });
+
+#ifdef STACK_REGS
+  TIMEVAR (stack_reg_time, reg_to_stack (insns, stack_reg_dump_file));
+  if (stack_reg_dump)
+    {
+      TIMEVAR (dump_time,
+	       {
+		 fprintf (stack_reg_dump_file, "\n;; Function %s\n\n",
+			  IDENTIFIER_POINTER (DECL_NAME (decl)));
+		 print_rtl (stack_reg_dump_file, insns);
+		 fflush (stack_reg_dump_file);
+	       });
+    }
+#endif
+
+  /* Now turn the rtl into assembler code.  */
+
+  TIMEVAR (final_time,
+	   {
+	     rtx x;
+	     char *fnname;
+
+	     /* Get the function's name, as described by its RTL.
+		This may be different from the DECL_NAME name used
+		in the source file.  */
+
+	     x = DECL_RTL (decl);
+	     if (GET_CODE (x) != MEM)
+	       abort ();
+	     x = XEXP (x, 0);
+	     if (GET_CODE (x) != SYMBOL_REF)
+	       abort ();
+	     fnname = XSTR (x, 0);
+
+	     assemble_start_function (decl, fnname);
+	     final_start_function (insns, asm_out_file, optimize);
+	     final (insns, asm_out_file, optimize, 0);
+	     final_end_function (insns, asm_out_file, optimize);
+	     assemble_end_function (decl, fnname);
+	     fflush (asm_out_file);
+	   });
+
+  /* Write DBX symbols if requested */
+
+  /* Note that for those inline functions where we don't initially
+     know for certain that we will be generating an out-of-line copy,
+     the first invocation of this routine (rest_of_compilation) will
+     skip over this code by doing a `goto exit_rest_of_compilation;'.
+     Later on, finish_compilation will call rest_of_compilation again
+     for those inline functions that need to have out-of-line copies
+     generated.  During that call, we *will* be routed past here.  */
+
+#ifdef DBX_DEBUGGING_INFO
+  if (write_symbols == DBX_DEBUG)
+    TIMEVAR (symout_time, dbxout_function (decl));
+#endif
+
+#ifdef DWARF_DEBUGGING_INFO
+  if (write_symbols == DWARF_DEBUG)
+    TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0));
+#endif
+
+ exit_rest_of_compilation:
+
+  /* In case the function was not output,
+     don't leave any temporary anonymous types
+     queued up for sdb output.  */
+#ifdef SDB_DEBUGGING_INFO
+  if (write_symbols == SDB_DEBUG)
+    sdbout_types (NULL_TREE);
+#endif
+
+  /* Put back the tree of subblocks and list of arguments
+     from before we copied them.
+     Code generation and the output of debugging info may have modified
+     the copy, but the original is unchanged.  */
+
+  if (saved_block_tree != 0)
+    DECL_INITIAL (decl) = saved_block_tree;
+  if (saved_arguments != 0)
+    DECL_ARGUMENTS (decl) = saved_arguments;
+
+  reload_completed = 0;
+
+  /* Clear out the insn_length contents now that they are no longer valid.  */
+  init_insn_lengths ();
+
+  /* Clear out the real_constant_chain before some of the rtx's
+     it runs through become garbage.  */
+
+  clear_const_double_mem ();
+
+  /* Cancel the effect of rtl_in_current_obstack.  */
+
+  resume_temporary_allocation ();
+
+  /* The parsing time is all the time spent in yyparse
+     *except* what is spent in this function.  */
+
+  parse_time -= get_run_time () - start_time;
+}
+
+/* Entry point of cc1/c++.  Decode command args, then call compile_file.
+   Exit code is 35 if can't open files, 34 if fatal error,
+   33 if had nonfatal errors, else success.  */
+
+int
+main (argc, argv, envp)
+     int argc;
+     char **argv;
+     char **envp;
+{
+  register int i;
+  char *filename = 0;
+  int flag_print_mem = 0;
+  int version_flag = 0;
+  char *p;
+
+  /* save in case md file wants to emit args as a comment.  */
+  save_argc = argc;
+  save_argv = argv;
+
+  p = argv[0] + strlen (argv[0]);
+  while (p != argv[0] && p[-1] != '/'
+#ifdef DIR_SEPARATOR
+	 && p[-1] != DIR_SEPARATOR
+#endif
+	 )
+    --p;
+  progname = p;
+
+#ifdef RLIMIT_STACK
+  /* Get rid of any avoidable limit on stack size.  */
+  {
+    struct rlimit rlim;
+
+    /* Set the stack limit huge so that alloca does not fail. */
+    getrlimit (RLIMIT_STACK, &rlim);
+    rlim.rlim_cur = rlim.rlim_max;
+    setrlimit (RLIMIT_STACK, &rlim);
+  }
+#endif /* RLIMIT_STACK */
+
+  signal (SIGFPE, float_signal);
+
+#ifdef SIGPIPE
+  signal (SIGPIPE, pipe_closed);
+#endif
+
+  decl_printable_name = decl_name;
+  lang_expand_expr = (struct rtx_def *(*)()) do_abort;
+  interim_eh_hook = interim_eh;
+
+  /* Initialize whether `char' is signed.  */
+  flag_signed_char = DEFAULT_SIGNED_CHAR;
+#ifdef DEFAULT_SHORT_ENUMS
+  /* Initialize how much space enums occupy, by default.  */
+  flag_short_enums = DEFAULT_SHORT_ENUMS;
+#endif
+
+  /* Scan to see what optimization level has been specified.  That will
+     determine the default value of many flags.  */
+  for (i = 1; i < argc; i++)
+    {
+      if (!strcmp (argv[i], "-O"))
+	{
+	  optimize = 1;
+	}
+      else if (argv[i][0] == '-' && argv[i][1] == 'O')
+	{
+	  /* Handle -O2, -O3, -O69, ...  */
+	  char *p = &argv[i][2];
+	  int c;
+
+	  while (c = *p++)
+	    if (! (c >= '0' && c <= '9'))
+	      break;
+	  if (c == 0)
+	    optimize = atoi (&argv[i][2]);
+	}
+    }
+
+  obey_regdecls = (optimize == 0);
+  if (optimize == 0)
+    {
+      flag_no_inline = 1;
+      warn_inline = 0;
+    }
+
+  if (optimize >= 1)
+    {
+      flag_defer_pop = 1;
+      flag_thread_jumps = 1;
+#ifdef DELAY_SLOTS
+      flag_delayed_branch = 1;
+#endif
+#ifdef CAN_DEBUG_WITHOUT_FP
+      flag_omit_frame_pointer = 1;
+#endif
+    }
+
+  if (optimize >= 2)
+    {
+      flag_cse_follow_jumps = 1;
+      flag_cse_skip_blocks = 1;
+      flag_expensive_optimizations = 1;
+      flag_strength_reduce = 1;
+      flag_rerun_cse_after_loop = 1;
+      flag_caller_saves = 1;
+      flag_force_mem = 1;
+#ifdef INSN_SCHEDULING
+      flag_schedule_insns = 1;
+      flag_schedule_insns_after_reload = 1;
+#endif
+    }
+
+  if (optimize >= 3)
+    {
+      flag_inline_functions = 1;
+    }
+
+#ifdef OPTIMIZATION_OPTIONS
+  /* Allow default optimizations to be specified on a per-machine basis.  */
+  OPTIMIZATION_OPTIONS (optimize);
+#endif
+
+  /* Initialize register usage now so switches may override.  */
+  init_reg_sets ();
+
+  target_flags = 0;
+  set_target_switch ("");
+
+  for (i = 1; i < argc; i++)
+    {
+      int j;
+      /* If this is a language-specific option,
+	 decode it in a language-specific way.  */
+      for (j = 0; lang_options[j] != 0; j++)
+	if (!strncmp (argv[i], lang_options[j],
+		      strlen (lang_options[j])))
+	  break;
+      if (lang_options[j] != 0)
+	/* If the option is valid for *some* language,
+	   treat it as valid even if this language doesn't understand it.  */
+	lang_decode_option (argv[i]);
+      else if (argv[i][0] == '-' && argv[i][1] != 0)
+	{
+	  register char *str = argv[i] + 1;
+	  if (str[0] == 'Y')
+	    str++;
+
+	  if (str[0] == 'm')
+	    set_target_switch (&str[1]);
+	  else if (!strcmp (str, "dumpbase"))
+	    {
+	      dump_base_name = argv[++i];
+	    }
+	  else if (str[0] == 'd')
+	    {
+	      register char *p = &str[1];
+	      while (*p)
+		switch (*p++)
+		  {
+ 		  case 'a':
+ 		    combine_dump = 1;
+ 		    dbr_sched_dump = 1;
+ 		    flow_dump = 1;
+ 		    global_reg_dump = 1;
+ 		    jump_opt_dump = 1;
+ 		    jump2_opt_dump = 1;
+ 		    local_reg_dump = 1;
+ 		    loop_dump = 1;
+ 		    rtl_dump = 1;
+ 		    cse_dump = 1, cse2_dump = 1;
+ 		    sched_dump = 1;
+ 		    sched2_dump = 1;
+		    stack_reg_dump = 1;
+		    break;
+		  case 'k':
+		    stack_reg_dump = 1;
+		    break;
+		  case 'c':
+		    combine_dump = 1;
+		    break;
+		  case 'd':
+		    dbr_sched_dump = 1;
+		    break;
+		  case 'f':
+		    flow_dump = 1;
+		    break;
+		  case 'g':
+		    global_reg_dump = 1;
+		    break;
+		  case 'j':
+		    jump_opt_dump = 1;
+		    break;
+		  case 'J':
+		    jump2_opt_dump = 1;
+		    break;
+		  case 'l':
+		    local_reg_dump = 1;
+		    break;
+		  case 'L':
+		    loop_dump = 1;
+		    break;
+		  case 'm':
+		    flag_print_mem = 1;
+		    break;
+		  case 'p':
+		    flag_print_asm_name = 1;
+		    break;
+		  case 'r':
+		    rtl_dump = 1;
+		    break;
+		  case 's':
+		    cse_dump = 1;
+		    break;
+		  case 't':
+		    cse2_dump = 1;
+		    break;
+		  case 'S':
+		    sched_dump = 1;
+		    break;
+		  case 'R':
+		    sched2_dump = 1;
+		    break;
+		  case 'y':
+		    set_yydebug (1);
+		    break;
+
+		  case 'x':
+		    rtl_dump_and_exit = 1;
+		    break;
+		  }
+	    }
+	  else if (str[0] == 'f')
+	    {
+	      register char *p = &str[1];
+	      int found = 0;
+
+	      /* Some kind of -f option.
+		 P's value is the option sans `-f'.
+		 Search for it in the table of options.  */
+
+	      for (j = 0;
+		   !found && j < sizeof (f_options) / sizeof (f_options[0]);
+		   j++)
+		{
+		  if (!strcmp (p, f_options[j].string))
+		    {
+		      *f_options[j].variable = f_options[j].on_value;
+		      /* A goto here would be cleaner,
+			 but breaks the vax pcc.  */
+		      found = 1;
+		    }
+		  if (p[0] == 'n' && p[1] == 'o' && p[2] == '-'
+		      && ! strcmp (p+3, f_options[j].string))
+		    {
+		      *f_options[j].variable = ! f_options[j].on_value;
+		      found = 1;
+		    }
+		}
+
+	      if (found)
+		;
+	      else if (!strncmp (p, "fixed-", 6))
+		fix_register (&p[6], 1, 1);
+	      else if (!strncmp (p, "call-used-", 10))
+		fix_register (&p[10], 0, 1);
+	      else if (!strncmp (p, "call-saved-", 11))
+		fix_register (&p[11], 0, 0);
+	      else
+		error ("Invalid option `%s'", argv[i]);
+	    }
+	  else if (str[0] == 'O')
+	    {
+	      register char *p = str+1;
+	      while (*p && *p >= '0' && *p <= '9')
+		p++;
+	      if (*p == '\0')
+		;
+	      else
+		error ("Invalid option `%s'", argv[i]);
+	    }
+	  else if (!strcmp (str, "pedantic"))
+	    pedantic = 1;
+	  else if (!strcmp (str, "pedantic-errors"))
+	    flag_pedantic_errors = pedantic = 1;
+	  else if (!strcmp (str, "quiet"))
+	    quiet_flag = 1;
+	  else if (!strcmp (str, "version"))
+	    version_flag = 1;
+	  else if (!strcmp (str, "w"))
+	    inhibit_warnings = 1;
+	  else if (!strcmp (str, "W"))
+	    {
+	      extra_warnings = 1;
+	      /* We save the value of warn_uninitialized, since if they put
+		 -Wuninitialized on the command line, we need to generate a
+		 warning about not using it without also specifying -O.  */
+	      if (warn_uninitialized != 1)
+		warn_uninitialized = 2;
+	    }
+	  else if (str[0] == 'W')
+	    {
+	      register char *p = &str[1];
+	      int found = 0;
+
+	      /* Some kind of -W option.
+		 P's value is the option sans `-W'.
+		 Search for it in the table of options.  */
+
+	      for (j = 0;
+		   !found && j < sizeof (W_options) / sizeof (W_options[0]);
+		   j++)
+		{
+		  if (!strcmp (p, W_options[j].string))
+		    {
+		      *W_options[j].variable = W_options[j].on_value;
+		      /* A goto here would be cleaner,
+			 but breaks the vax pcc.  */
+		      found = 1;
+		    }
+		  if (p[0] == 'n' && p[1] == 'o' && p[2] == '-'
+		      && ! strcmp (p+3, W_options[j].string))
+		    {
+		      *W_options[j].variable = ! W_options[j].on_value;
+		      found = 1;
+		    }
+		}
+
+	      if (found)
+		;
+	      else if (!strncmp (p, "id-clash-", 9))
+		{
+		  char *endp = p + 9;
+
+		  while (*endp)
+		    {
+		      if (*endp >= '0' && *endp <= '9')
+			endp++;
+		      else
+			{
+			  error ("Invalid option `%s'", argv[i]);
+			  goto id_clash_lose;
+			}
+		    }
+		  warn_id_clash = 1;
+		  id_clash_len = atoi (str + 10);
+		id_clash_lose: ;
+		}
+	      else if (!strncmp (p, "larger-than-", 12))
+		{
+		  char *endp = p + 12;
+
+		  while (*endp)
+		    {
+		      if (*endp >= '0' && *endp <= '9')
+			endp++;
+		      else
+			{
+			  error ("Invalid option `%s'", argv[i]);
+			  goto larger_than_lose;
+			}
+		    }
+		  warn_larger_than = 1;
+		  larger_than_size = atoi (str + 13);
+		larger_than_lose: ;
+		}
+	      else
+		error ("Invalid option `%s'", argv[i]);
+	    }
+	  else if (!strcmp (str, "p"))
+	    {
+	      if (!output_bytecode)
+		profile_flag = 1;
+	      else
+		error ("profiling not supported in bytecode compilation");
+	    }
+	  else if (!strcmp (str, "a"))
+	    {
+#if !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER)
+	      warning ("`-a' option (basic block profile) not supported");
+#else
+	      profile_block_flag = 1;
+#endif
+	    }
+	  else if (str[0] == 'g')
+	    {
+	      char *p = str + 1;
+	      char *q;
+	      unsigned len;
+	      unsigned level;
+
+	      while (*p && (*p < '0' || *p > '9'))
+		p++;
+	      len = p - str;
+	      q = p;
+	      while (*q && (*q >= '0' && *q <= '9'))
+		q++;
+	      if (*p)
+		level = atoi (p);
+	      else
+		level = 2;	/* default debugging info level */
+	      if (*q || level > 3)
+		{
+		  warning ("invalid debug level specification in option: `-%s'",
+			   str);
+		  warning ("no debugging information will be generated");
+		  level = 0;
+		}
+
+	      /* If more than one debugging type is supported,
+		 you must define PREFERRED_DEBUGGING_TYPE
+		 to choose a format in a system-dependent way.  */
+	      /* This is one long line cause VAXC can't handle a \-newline.  */
+#if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) + defined (DWARF_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO))
+#ifdef PREFERRED_DEBUGGING_TYPE
+	      if (!strncmp (str, "ggdb", len))
+		write_symbols = PREFERRED_DEBUGGING_TYPE;
+#else /* no PREFERRED_DEBUGGING_TYPE */
+You Lose!  You must define PREFERRED_DEBUGGING_TYPE!
+#endif /* no PREFERRED_DEBUGGING_TYPE */
+#endif /* More than one debugger format enabled.  */
+#ifdef DBX_DEBUGGING_INFO
+	      if (write_symbols != NO_DEBUG)
+		;
+	      else if (!strncmp (str, "ggdb", len))
+		write_symbols = DBX_DEBUG;
+	      else if (!strncmp (str, "gstabs", len))
+		write_symbols = DBX_DEBUG;
+	      else if (!strncmp (str, "gstabs+", len))
+		write_symbols = DBX_DEBUG;
+
+	      /* Always enable extensions for -ggdb or -gstabs+, 
+		 always disable for -gstabs.
+		 For plain -g, use system-specific default.  */
+	      if (write_symbols == DBX_DEBUG && !strncmp (str, "ggdb", len)
+		  && len >= 2)
+		use_gnu_debug_info_extensions = 1;
+	      else if (write_symbols == DBX_DEBUG && !strncmp (str, "gstabs+", len)
+		       && len >= 7)
+		use_gnu_debug_info_extensions = 1;
+	      else if (write_symbols == DBX_DEBUG
+		       && !strncmp (str, "gstabs", len) && len >= 2)
+		use_gnu_debug_info_extensions = 0;
+	      else
+		use_gnu_debug_info_extensions = DEFAULT_GDB_EXTENSIONS;
+#endif /* DBX_DEBUGGING_INFO */
+#ifdef DWARF_DEBUGGING_INFO
+	      if (write_symbols != NO_DEBUG)
+		;
+	      else if (!strncmp (str, "g", len))
+		write_symbols = DWARF_DEBUG;
+	      else if (!strncmp (str, "ggdb", len))
+		write_symbols = DWARF_DEBUG;
+	      else if (!strncmp (str, "gdwarf", len))
+		write_symbols = DWARF_DEBUG;
+
+	      /* Always enable extensions for -ggdb or -gdwarf+, 
+		 always disable for -gdwarf.
+		 For plain -g, use system-specific default.  */
+	      if (write_symbols == DWARF_DEBUG && !strncmp (str, "ggdb", len)
+		  && len >= 2)
+		use_gnu_debug_info_extensions = 1;
+	      else if (write_symbols == DWARF_DEBUG && !strcmp (str, "gdwarf+"))
+		use_gnu_debug_info_extensions = 1;
+	      else if (write_symbols == DWARF_DEBUG
+		       && !strncmp (str, "gdwarf", len) && len >= 2)
+		use_gnu_debug_info_extensions = 0;
+	      else
+		use_gnu_debug_info_extensions = DEFAULT_GDB_EXTENSIONS;
+#endif
+#ifdef SDB_DEBUGGING_INFO
+	      if (write_symbols != NO_DEBUG)
+		;
+	      else if (!strncmp (str, "g", len))
+		write_symbols = SDB_DEBUG;
+	      else if (!strncmp (str, "gdb", len))
+		write_symbols = SDB_DEBUG;
+	      else if (!strncmp (str, "gcoff", len))
+		write_symbols = SDB_DEBUG;
+#endif /* SDB_DEBUGGING_INFO */
+#ifdef XCOFF_DEBUGGING_INFO
+	      if (write_symbols != NO_DEBUG)
+		;
+	      else if (!strncmp (str, "g", len))
+		write_symbols = XCOFF_DEBUG;
+	      else if (!strncmp (str, "ggdb", len))
+		write_symbols = XCOFF_DEBUG;
+	      else if (!strncmp (str, "gxcoff", len))
+		write_symbols = XCOFF_DEBUG;
+
+	      /* Always enable extensions for -ggdb or -gxcoff+,
+		 always disable for -gxcoff.
+		 For plain -g, use system-specific default.  */
+	      if (write_symbols == XCOFF_DEBUG && !strncmp (str, "ggdb", len)
+		  && len >= 2)
+		use_gnu_debug_info_extensions = 1;
+	      else if (write_symbols == XCOFF_DEBUG && !strcmp (str, "gxcoff+"))
+		use_gnu_debug_info_extensions = 1;
+	      else if (write_symbols == XCOFF_DEBUG
+		       && !strncmp (str, "gxcoff", len) && len >= 2)
+		use_gnu_debug_info_extensions = 0;
+	      else
+		use_gnu_debug_info_extensions = DEFAULT_GDB_EXTENSIONS;
+#endif	      
+	      if (write_symbols == NO_DEBUG)
+		warning ("`-%s' not supported by this configuration of GCC",
+			 str);
+	      else if (level == 0)
+		write_symbols = NO_DEBUG;
+	      else
+		debug_info_level = (enum debug_info_level) level;
+	    }
+	  else if (!strcmp (str, "o"))
+	    {
+	      asm_file_name = argv[++i];
+	    }
+	  else if (str[0] == 'G')
+	    {
+	      g_switch_set = TRUE;
+	      g_switch_value = atoi ((str[1] != '\0') ? str+1 : argv[++i]);
+	    }
+	  else if (!strncmp (str, "aux-info", 8))
+	    {
+	      flag_gen_aux_info = 1;
+	      aux_info_file_name = (str[8] != '\0' ? str+8 : argv[++i]);
+	    }
+	  else
+	    error ("Invalid option `%s'", argv[i]);
+	}
+      else if (argv[i][0] == '+')
+	error ("Invalid option `%s'", argv[i]);
+      else
+	filename = argv[i];
+    }
+
+  /* Initialize for bytecode output.  A good idea to do this as soon as
+     possible after the "-f" options have been parsed. */
+  if (output_bytecode)
+    {
+#ifndef TARGET_SUPPORTS_BYTECODE
+      /* Just die with a fatal error if not supported */
+      fatal ("-fbytecode not supporter for this target");
+#else
+      bc_initialize ();
+#endif
+    }
+
+  if (optimize == 0)
+    {
+      /* Inlining does not work if not optimizing,
+	 so force it not to be done.  */
+      flag_no_inline = 1;
+      warn_inline = 0;
+
+      /* The c_decode_option and lang_decode_option functions set
+	 this to `2' if -Wall is used, so we can avoid giving out
+	 lots of errors for people who don't realize what -Wall does.  */
+      if (warn_uninitialized == 1)
+	warning ("-Wuninitialized is not supported without -O");
+    }
+
+#if defined(DWARF_DEBUGGING_INFO)
+  if (write_symbols == DWARF_DEBUG
+      && strcmp (language_string, "GNU C++") == 0)
+    {
+      warning ("-g option not supported for C++ on systems using the DWARF debugging format");
+      write_symbols = NO_DEBUG;
+    }
+#endif /* defined(DWARF_DEBUGGING_INFO) */
+
+#ifdef OVERRIDE_OPTIONS
+  /* Some machines may reject certain combinations of options.  */
+  OVERRIDE_OPTIONS;
+#endif
+
+  /* Unrolling all loops implies that standard loop unrolling must also
+     be done.  */
+  if (flag_unroll_all_loops)
+    flag_unroll_loops = 1;
+  /* Loop unrolling requires that strength_reduction be on also.  Silently
+     turn on strength reduction here if it isn't already on.  Also, the loop
+     unrolling code assumes that cse will be run after loop, so that must
+     be turned on also.  */
+  if (flag_unroll_loops)
+    {
+      flag_strength_reduce = 1;
+      flag_rerun_cse_after_loop = 1;
+    }
+
+  /* Warn about options that are not supported on this machine.  */
+#ifndef INSN_SCHEDULING
+  if (flag_schedule_insns || flag_schedule_insns_after_reload)
+    warning ("instruction scheduling not supported on this target machine");
+#endif
+#ifndef DELAY_SLOTS
+  if (flag_delayed_branch)
+    warning ("this target machine does not have delayed branches");
+#endif
+
+  /* If we are in verbose mode, write out the version and maybe all the
+     option flags in use.  */
+  if (version_flag)
+    {
+      fprintf (stderr, "%s version %s", language_string, version_string);
+#ifdef TARGET_VERSION
+      TARGET_VERSION;
+#endif
+#ifdef __GNUC__
+#ifndef __VERSION__
+#define __VERSION__ "[unknown]"
+#endif
+      fprintf (stderr, " compiled by GNU C version %s.\n", __VERSION__);
+#else
+      fprintf (stderr, " compiled by CC.\n");
+#endif
+      if (! quiet_flag)
+	print_switch_values ();
+    }
+
+  compile_file (filename);
+
+#if !defined(OS2) && !defined(VMS) && !defined(_WIN32)
+  if (flag_print_mem)
+    {
+      char *lim = (char *) sbrk (0);
+
+      fprintf (stderr, "Data size %d.\n",
+	       lim - (char *) &environ);
+      fflush (stderr);
+
+#ifdef USG
+      system ("ps -l 1>&2");
+#else /* not USG */
+      system ("ps v");
+#endif /* not USG */
+    }
+#endif /* not OS2 and not VMS and not _WIN32 */
+
+  if (errorcount)
+    exit (FATAL_EXIT_CODE);
+  if (sorrycount)
+    exit (FATAL_EXIT_CODE);
+  exit (SUCCESS_EXIT_CODE);
+  return 0;
+}
+
+/* Decode -m switches.  */
+
+/* Here is a table, controlled by the tm.h file, listing each -m switch
+   and which bits in `target_switches' it should set or clear.
+   If VALUE is positive, it is bits to set.
+   If VALUE is negative, -VALUE is bits to clear.
+   (The sign bit is not used so there is no confusion.)  */
+
+struct {char *name; int value;} target_switches []
+  = TARGET_SWITCHES;
+
+/* This table is similar, but allows the switch to have a value.  */
+
+#ifdef TARGET_OPTIONS
+struct {char *prefix; char ** variable;} target_options []
+  = TARGET_OPTIONS;
+#endif
+
+/* Decode the switch -mNAME.  */
+
+void
+set_target_switch (name)
+     char *name;
+{
+  register int j;
+  int valid = 0;
+
+  for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++)
+    if (!strcmp (target_switches[j].name, name))
+      {
+	if (target_switches[j].value < 0)
+	  target_flags &= ~-target_switches[j].value;
+	else
+	  target_flags |= target_switches[j].value;
+	valid = 1;
+      }
+
+#ifdef TARGET_OPTIONS
+  if (!valid)
+    for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++)
+      {
+	int len = strlen (target_options[j].prefix);
+	if (!strncmp (target_options[j].prefix, name, len))
+	  {
+	    *target_options[j].variable = name + len;
+	    valid = 1;
+	  }
+      }
+#endif
+
+  if (!valid)
+    error ("Invalid option `%s'", name);
+}
+
+/* Variable used for communication between the following two routines.  */
+
+static int line_position;
+
+/* Print an option value and adjust the position in the line.  */
+
+static void
+print_single_switch (type, name)
+     char *type, *name;
+{
+  fprintf (stderr, " %s%s", type, name);
+
+  line_position += strlen (type) + strlen (name) + 1;
+
+  if (line_position > 65)
+    {
+      fprintf (stderr, "\n\t");
+      line_position = 8;
+    }
+}
+     
+/* Print default target switches for -version.  */
+
+static void
+print_switch_values ()
+{
+  register int j;
+
+  fprintf (stderr, "enabled:");
+  line_position = 8;
+
+  for (j = 0; j < sizeof f_options / sizeof f_options[0]; j++)
+    if (*f_options[j].variable == f_options[j].on_value)
+      print_single_switch ("-f", f_options[j].string);
+
+  for (j = 0; j < sizeof W_options / sizeof W_options[0]; j++)
+    if (*W_options[j].variable == W_options[j].on_value)
+      print_single_switch ("-W", W_options[j].string);
+
+  for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++)
+    if (target_switches[j].name[0] != '\0'
+	&& target_switches[j].value > 0
+	&& ((target_switches[j].value & target_flags)
+	    == target_switches[j].value))
+      print_single_switch ("-m", target_switches[j].name);
+
+  fprintf (stderr, "\n");
+}