/* Top level of GCC compilers (cc1, cc1plus, etc.)
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
int optimize_size = 0;
+/* True if this is the lto front end. This is used to disable
+ gimple generation and lowering passes that are normally run on the
+ output of a front end. These passes must be bypassed for lto since
+ they have already been done before the gimple was written. */
+
+bool in_lto_p = false;
+
+/* Nonzero if we should write GIMPLE bytecode for link-time optimization. */
+
+int flag_generate_lto;
+
/* The FUNCTION_DECL for the function currently being compiled,
or 0 if between functions. */
tree current_function_decl;
the support provided depends on the backend. */
rtx stack_limit_rtx;
-/* Nonzero if we should track variables. When
- flag_var_tracking == AUTODETECT_VALUE it will be set according
- to optimize, debug_info_level and debug_hooks in process_options (). */
+/* Positive if we should track variables, negative if we should run
+ the var-tracking pass only to discard debug annotations, zero if
+ we're not to run it. When flag_var_tracking == AUTODETECT_VALUE it
+ will be set according to optimize, debug_info_level and debug_hooks
+ in process_options (). */
int flag_var_tracking = AUTODETECT_VALUE;
+/* Positive if we should track variables at assignments, negative if
+ we should run the var-tracking pass only to discard debug
+ annotations. When flag_var_tracking_assignments ==
+ AUTODETECT_VALUE it will be set according to flag_var_tracking. */
+int flag_var_tracking_assignments = AUTODETECT_VALUE;
+
+/* Nonzero if we should toggle flag_var_tracking_assignments after
+ processing options and computing its default. */
+int flag_var_tracking_assignments_toggle = 0;
+
/* Type of stack check. */
enum stack_check_type flag_stack_check = NO_STACK_CHECK;
return atoi (p);
}
-/* When compiling with a recent enough GCC, we use the GNU C "extern inline"
- for floor_log2 and exact_log2; see toplev.h. That construct, however,
- conflicts with the ISO C++ One Definition Rule. */
+#if GCC_VERSION < 3004
-#if GCC_VERSION < 3004 || !defined (__cplusplus)
+/* The functions floor_log2 and exact_log2 are defined as inline
+ functions in toplev.h if GCC_VERSION >= 3004. The definitions here
+ are used for older versions of gcc. */
/* Given X, an unsigned number, return the largest int Y such that 2**Y <= X.
If X is 0, return -1. */
if (x == 0)
return -1;
-#ifdef CLZ_HWI
- t = HOST_BITS_PER_WIDE_INT - 1 - (int) CLZ_HWI (x);
-#else
if (HOST_BITS_PER_WIDE_INT > 64)
if (x >= (unsigned HOST_WIDE_INT) 1 << (t + 64))
t += 64;
t += 2;
if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 1))
t += 1;
-#endif
return t;
}
{
if (x != (x & -x))
return -1;
-#ifdef CTZ_HWI
- return x ? CTZ_HWI (x) : -1;
-#else
return floor_log2 (x);
-#endif
}
-#endif /* GCC_VERSION < 3004 || !defined (__cplusplus) */
+#endif /* GCC_VERSION < 3004 */
/* Handler for fatal signals, such as SIGSEGV. These are transformed
into ICE messages, which is much more user friendly. In case the
#else
fprintf (asm_file, "\t.file\t");
output_quoted_string (asm_file, na);
- fputc ('\n', asm_file);
+ putc ('\n', asm_file);
#endif
}
/* Warn about a use of an identifier which was marked deprecated. */
void
-warn_deprecated_use (tree node)
+warn_deprecated_use (tree node, tree attr)
{
+ const char *msg;
+
if (node == 0 || !warn_deprecated_decl)
return;
+ if (!attr)
+ {
+ if (DECL_P (node))
+ attr = DECL_ATTRIBUTES (node);
+ else if (TYPE_P (node))
+ {
+ tree decl = TYPE_STUB_DECL (node);
+ if (decl)
+ attr = lookup_attribute ("deprecated",
+ TYPE_ATTRIBUTES (TREE_TYPE (decl)));
+ }
+ }
+
+ if (attr)
+ attr = lookup_attribute ("deprecated", attr);
+
+ if (attr)
+ msg = TREE_STRING_POINTER (TREE_VALUE (TREE_VALUE (attr)));
+ else
+ msg = NULL;
+
if (DECL_P (node))
{
expanded_location xloc = expand_location (DECL_SOURCE_LOCATION (node));
- warning (OPT_Wdeprecated_declarations,
- "%qD is deprecated (declared at %s:%d)",
- node, xloc.file, xloc.line);
+ if (msg)
+ warning (OPT_Wdeprecated_declarations,
+ "%qD is deprecated (declared at %s:%d): %s",
+ node, xloc.file, xloc.line, msg);
+ else
+ warning (OPT_Wdeprecated_declarations,
+ "%qD is deprecated (declared at %s:%d)",
+ node, xloc.file, xloc.line);
}
else if (TYPE_P (node))
{
expanded_location xloc
= expand_location (DECL_SOURCE_LOCATION (decl));
if (what)
- warning (OPT_Wdeprecated_declarations,
- "%qE is deprecated (declared at %s:%d)", what,
- xloc.file, xloc.line);
+ {
+ if (msg)
+ warning (OPT_Wdeprecated_declarations,
+ "%qE is deprecated (declared at %s:%d): %s",
+ what, xloc.file, xloc.line, msg);
+ else
+ warning (OPT_Wdeprecated_declarations,
+ "%qE is deprecated (declared at %s:%d)", what,
+ xloc.file, xloc.line);
+ }
else
- warning (OPT_Wdeprecated_declarations,
- "type is deprecated (declared at %s:%d)",
- xloc.file, xloc.line);
+ {
+ if (msg)
+ warning (OPT_Wdeprecated_declarations,
+ "type is deprecated (declared at %s:%d): %s",
+ xloc.file, xloc.line, msg);
+ else
+ warning (OPT_Wdeprecated_declarations,
+ "type is deprecated (declared at %s:%d)",
+ xloc.file, xloc.line);
+ }
}
else
{
if (what)
- warning (OPT_Wdeprecated_declarations, "%qE is deprecated", what);
+ {
+ if (msg)
+ warning (OPT_Wdeprecated_declarations, "%qE is deprecated: %s",
+ what, msg);
+ else
+ warning (OPT_Wdeprecated_declarations, "%qE is deprecated", what);
+ }
else
- warning (OPT_Wdeprecated_declarations, "type is deprecated");
+ {
+ if (msg)
+ warning (OPT_Wdeprecated_declarations, "type is deprecated: %s",
+ msg);
+ else
+ warning (OPT_Wdeprecated_declarations, "type is deprecated");
+ }
}
}
}
init_final (main_input_filename);
coverage_init (aux_base_name);
statistics_init ();
+ invoke_plugin_callbacks (PLUGIN_START_UNIT, NULL);
timevar_push (TV_PARSE);
ggc_protect_identifiers = false;
+ /* This must also call cgraph_finalize_compilation_unit. */
lang_hooks.decls.final_write_globals ();
if (errorcount || sorrycount)
/* Flush any pending external directives. */
process_pending_assemble_externals ();
+ /* Emit LTO marker if LTO info has been previously emitted. This is
+ used by collect2 to determine whether an object file contains IL.
+ We used to emit an undefined reference here, but this produces
+ link errors if an object file with IL is stored into a shared
+ library without invoking lto1. */
+ if (flag_generate_lto)
+ fprintf (asm_out_file,"\t.comm\tgnu_lto_v1,1,1\n");
+
/* Attach a special .ident directive to the end of the file to identify
the version of GCC which compiled this code. The format of the .ident
string is patterned after the ones produced by native SVR4 compilers. */
}
#endif
+ /* Invoke registered plugin callbacks. */
+ invoke_plugin_callbacks (PLUGIN_FINISH_UNIT, NULL);
+
/* This must be at the end. Some target ports emit end of file directives
into the assembly file here, and hence we can not output anything to the
assembly file after this point. */
N_("%s%s%s %sversion %s (%s) compiled by CC, ")
#endif
;
+#ifdef HAVE_mpc
static const char fmt2[] =
- N_("GMP version %s, MPFR version %s.\n");
+ N_("GMP version %s, MPFR version %s, MPC version %s\n");
+#else
+ static const char fmt2[] =
+ N_("GMP version %s, MPFR version %s\n");
+#endif
static const char fmt3[] =
N_("%s%swarning: %s header version %s differs from library version %s.\n");
static const char fmt4[] =
#endif
fprintf (file,
file == stderr ? _(fmt2) : fmt2,
- GCC_GMP_STRINGIFY_VERSION, MPFR_VERSION_STRING);
+ GCC_GMP_STRINGIFY_VERSION, MPFR_VERSION_STRING
+#ifdef HAVE_mpc
+ , MPC_VERSION_STRING
+#endif
+ );
if (strcmp (GCC_GMP_STRINGIFY_VERSION, gmp_version))
fprintf (file,
file == stderr ? _(fmt3) : fmt3,
file == stderr ? _(fmt3) : fmt3,
indent, *indent != 0 ? " " : "",
"MPFR", MPFR_VERSION_STRING, mpfr_get_version ());
+#ifdef HAVE_mpc
+ if (strcmp (MPC_VERSION_STRING, mpc_get_version ()))
+ fprintf (file,
+ file == stderr ? _(fmt3) : fmt3,
+ indent, *indent != 0 ? " " : "",
+ "MPC", MPC_VERSION_STRING, mpc_get_version ());
+#endif
fprintf (file,
file == stderr ? _(fmt4) : fmt4,
indent, *indent != 0 ? " " : "",
case SWITCH_TYPE_ENABLED:
if (prepend_sep)
fputc (' ', asm_out_file);
- fprintf (asm_out_file, text);
+ fputs (text, asm_out_file);
/* No need to return the length here as
print_single_switch has already done it. */
return 0;
/* Drop through. */
case SWITCH_TYPE_DESCRIPTIVE:
- fprintf (stderr, text);
+ fputs (text, stderr);
/* No need to return the length here as
print_single_switch has already done it. */
return 0;
into the assembler file as comments. */
print_version (asm_out_file, ASM_COMMENT_START);
print_switch_values (print_to_asm_out_file);
- fprintf (asm_out_file, "\n");
+ putc ('\n', asm_out_file);
}
#endif
}
}
/* Default tree printer. Handles declarations only. */
-static bool
-default_tree_printer (pretty_printer * pp, text_info *text, const char *spec,
+bool
+default_tree_printer (pretty_printer *pp, text_info *text, const char *spec,
int precision, bool wide, bool set_locus, bool hash)
{
tree t;
|| flag_loop_block
|| flag_loop_interchange
|| flag_loop_strip_mine
- || flag_graphite_identity)
+ || flag_graphite_identity
+ || flag_loop_parallelize_all)
sorry ("Graphite loop optimizations cannot be used");
#endif
profile_flag = 0;
}
+ if (flag_gtoggle)
+ {
+ if (debug_info_level == DINFO_LEVEL_NONE)
+ {
+ debug_info_level = DINFO_LEVEL_NORMAL;
+
+ if (write_symbols == NO_DEBUG)
+ write_symbols = PREFERRED_DEBUGGING_TYPE;
+ }
+ else
+ debug_info_level = DINFO_LEVEL_NONE;
+ }
+
+ if (flag_dump_final_insns && !flag_syntax_only && !no_backend)
+ {
+ FILE *final_output = fopen (flag_dump_final_insns, "w");
+ if (!final_output)
+ {
+ error ("could not open final insn dump file %qs: %s",
+ flag_dump_final_insns, strerror (errno));
+ flag_dump_final_insns = NULL;
+ }
+ else if (fclose (final_output))
+ {
+ error ("could not close zeroed insn dump file %qs: %s",
+ flag_dump_final_insns, strerror (errno));
+ flag_dump_final_insns = NULL;
+ }
+ }
+
+ /* Unless over-ridden for the target, assume that all DWARF levels
+ may be emitted, if DWARF2_DEBUG is selected. */
+ if (dwarf_strict < 0)
+ dwarf_strict = 0;
+
/* A lot of code assumes write_symbols == NO_DEBUG if the debugging
level is 0. */
if (debug_info_level == DINFO_LEVEL_NONE)
flag_var_tracking_uninit = 0;
}
- if (flag_rename_registers == AUTODETECT_VALUE)
- flag_rename_registers = default_debug_hooks->var_location
- != do_nothing_debug_hooks.var_location;
+ /* If the user specifically requested variable tracking with tagging
+ uninitialized variables, we need to turn on variable tracking.
+ (We already determined above that variable tracking is feasible.) */
+ if (flag_var_tracking_uninit)
+ flag_var_tracking = 1;
if (flag_var_tracking == AUTODETECT_VALUE)
flag_var_tracking = optimize >= 1;
+ if (flag_var_tracking_assignments == AUTODETECT_VALUE)
+ flag_var_tracking_assignments = flag_var_tracking
+ && !(flag_selective_scheduling || flag_selective_scheduling2);
+
+ if (flag_var_tracking_assignments_toggle)
+ flag_var_tracking_assignments = !flag_var_tracking_assignments;
+
+ if (flag_var_tracking_assignments && !flag_var_tracking)
+ flag_var_tracking = flag_var_tracking_assignments = -1;
+
+ if (flag_var_tracking_assignments
+ && (flag_selective_scheduling || flag_selective_scheduling2))
+ warning (0, "var-tracking-assignments changes selective scheduling");
+
+ if (flag_rename_registers == AUTODETECT_VALUE)
+ flag_rename_registers = default_debug_hooks->var_location
+ != do_nothing_debug_hooks.var_location;
+
if (flag_tree_cselim == AUTODETECT_VALUE)
#ifdef HAVE_conditional_move
flag_tree_cselim = 1;
flag_tree_cselim = 0;
#endif
- /* If the user specifically requested variable tracking with tagging
- uninitialized variables, we need to turn on variable tracking.
- (We already determined above that variable tracking is feasible.) */
- if (flag_var_tracking_uninit)
- flag_var_tracking = 1;
-
/* 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_signaling_nans)
flag_trapping_math = 1;
- /* We cannot reassociate if we want traps or signed zeros. */
+ /* We cannot reassociate if we want traps or signed zeros. */
if (flag_associative_math && (flag_trapping_math || flag_signed_zeros))
{
warning (0, "-fassociative-math disabled; other options take precedence");
fatal_error ("error writing to %s: %m", asm_file_name);
if (fclose (asm_out_file) != 0)
fatal_error ("error closing %s: %m", asm_file_name);
+ if (flag_wpa)
+ unlink_if_ordinary (asm_file_name);
}
statistics_fini ();
compile_file ();
finalize ();
-
- /* Invoke registered plugin callbacks. */
- invoke_plugin_callbacks (PLUGIN_FINISH_UNIT, NULL);
}
/* Stop timing and print the times. */
{
expandargv (&argc, &argv);
- save_argv = (const char **) argv;
+ save_argv = CONST_CAST2 (const char **, char **, argv);
/* Initialization of GCC's environment, and diagnostics. */
general_init (argv[0]);
/* Parse the options and do minimal processing; basically just
enough to default flags appropriately. */
- decode_options (argc, (const char **) argv);
+ decode_options (argc, CONST_CAST2 (const char **, char **, argv));
init_local_tick ();
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