/* 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.
#include "diagnostic.h"
#include "params.h"
#include "reload.h"
+#include "ira.h"
#include "dwarf2asm.h"
#include "integrate.h"
#include "real.h"
#include "alloc-pool.h"
#include "tree-mudflap.h"
#include "tree-pass.h"
+#include "gimple.h"
+#include "tree-ssa-alias.h"
+#include "plugin.h"
#if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO)
#include "dwarf2out.h"
if none. */
const char * current_function_func_begin_label;
-/* Temporarily suppress certain warnings.
- This is set while reading code from a system header file. */
-
-int in_system_header = 0;
-
/* Nonzero means to collect statistics which might be expensive
and to print them when we are done. */
int flag_detailed_statistics = 0;
int flag_complex_method = 1;
-/* Nonzero means that we don't want inlining by virtue of -fno-inline,
- not just because the tree inliner turned us off. */
-
-int flag_really_no_inline = 2;
-
/* Nonzero means we should be saving declaration info into a .X file. */
int flag_gen_aux_info = 0;
enum tls_model flag_tls_default = TLS_MODEL_GLOBAL_DYNAMIC;
+/* Set the default region and algorithm for the integrated register
+ allocator. */
+
+enum ira_algorithm flag_ira_algorithm = IRA_ALGORITHM_CB;
+enum ira_region flag_ira_region = IRA_REGION_MIXED;
+
+/* Set the default value for -fira-verbose. */
+
+unsigned int flag_ira_verbose = 5;
+
+/* Set the default for excess precision. */
+
+enum excess_precision flag_excess_precision_cmdline = EXCESS_PRECISION_DEFAULT;
+enum excess_precision flag_excess_precision = EXCESS_PRECISION_DEFAULT;
+
/* Nonzero means change certain warnings into errors.
Usually these are warnings about failure to conform to some standard. */
to optimize, debug_info_level and debug_hooks in process_options (). */
int flag_var_tracking = AUTODETECT_VALUE;
+/* Type of stack check. */
+enum stack_check_type flag_stack_check = NO_STACK_CHECK;
+
/* True if the user has tagged the function with the 'section'
attribute. */
if (!quiet_flag)
{
if (rtl_dump_and_exit)
- fprintf (stderr, "%s ", IDENTIFIER_POINTER (DECL_NAME (decl)));
+ fprintf (stderr, "%s ",
+ identifier_to_locale (IDENTIFIER_POINTER (DECL_NAME (decl))));
else
- fprintf (stderr, " %s", lang_hooks.decl_printable_name (decl, 2));
+ fprintf (stderr, " %s",
+ identifier_to_locale (lang_hooks.decl_printable_name (decl, 2)));
fflush (stderr);
pp_needs_newline (global_dc->printer) = true;
diagnostic_set_last_function (global_dc, (diagnostic_info *) NULL);
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
|| TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
{
if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
- pedwarn ("%q+F used but never defined", decl);
+ pedwarn (input_location, 0, "%q+F used but never defined", decl);
else
warning (OPT_Wunused_function, "%q+F declared %<static%> but never defined", decl);
/* This symbol is effectively an "extern" declaration now. */
/* 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))
{
- const char *what = NULL;
+ tree what = NULL_TREE;
tree decl = TYPE_STUB_DECL (node);
if (TYPE_NAME (node))
{
if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
- what = IDENTIFIER_POINTER (TYPE_NAME (node));
+ what = TYPE_NAME (node);
else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
&& DECL_NAME (TYPE_NAME (node)))
- what = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node)));
+ what = DECL_NAME (TYPE_NAME (node));
}
if (decl)
expanded_location xloc
= expand_location (DECL_SOURCE_LOCATION (decl));
if (what)
- warning (OPT_Wdeprecated_declarations,
- "%qs 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, "%qs 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");
+ }
}
}
}
{
/* Initialize yet another pass. */
+ ggc_protect_identifiers = true;
+
init_cgraph ();
init_final (main_input_filename);
coverage_init (aux_base_name);
+ statistics_init ();
timevar_push (TV_PARSE);
if (flag_syntax_only)
return;
+ ggc_protect_identifiers = false;
+
lang_hooks.decls.final_write_globals ();
if (errorcount || sorrycount)
varpool_assemble_pending_decls ();
finish_aliases_2 ();
- /* This must occur after the loop to output deferred functions.
- Else the coverage initializer would not be emitted if all the
- functions in this compilation unit were deferred. */
- coverage_finish ();
-
/* Likewise for mudflap static object registrations. */
if (flag_mudflap)
mudflap_finish_file ();
case 'I':
case 'M':
case 'N':
+ case 'U':
break;
case 'H':
setup_core_dumping();
break;
-
case 'a':
+ enable_rtl_dump_file ();
+ break;
+
default:
- if (!enable_rtl_dump_file (c))
warning (0, "unrecognized gcc debugging option: %c", c);
break;
}
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, MPC version %s\n");
+#else
static const char fmt2[] =
- N_("GMP version %s, MPFR version %s.\n");
+ 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[] =
indent, __VERSION__);
/* We need to stringify the GMP macro values. Ugh, gmp_version has
- two string formats, "i.j.k" and "i.j" when k is zero. */
+ two string formats, "i.j.k" and "i.j" when k is zero. As of
+ gmp-4.3.0, GMP always uses the 3 number format. */
#define GCC_GMP_STRINGIFY_VERSION3(X) #X
#define GCC_GMP_STRINGIFY_VERSION2(X) GCC_GMP_STRINGIFY_VERSION3(X)
-#if __GNU_MP_VERSION_PATCHLEVEL == 0
+#define GCC_GMP_VERSION_NUM(X,Y,Z) (((X) << 16L) | ((Y) << 8) | (Z))
+#define GCC_GMP_VERSION \
+ GCC_GMP_VERSION_NUM(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, __GNU_MP_VERSION_PATCHLEVEL)
+#if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,0) && __GNU_MP_VERSION_PATCHLEVEL == 0
#define GCC_GMP_STRINGIFY_VERSION GCC_GMP_STRINGIFY_VERSION2(__GNU_MP_VERSION) "." \
GCC_GMP_STRINGIFY_VERSION2(__GNU_MP_VERSION_MINOR)
#else
#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 ? " " : "",
PARAM_VALUE (GGC_MIN_EXPAND), PARAM_VALUE (GGC_MIN_HEAPSIZE));
+
+ print_plugins_versions (file, indent);
}
#ifdef ASM_COMMENT_START
NULL);
}
else
- inform ("-frecord-gcc-switches is not supported by the current target");
+ inform (input_location, "-frecord-gcc-switches is not supported by the current target");
}
#ifdef ASM_COMMENT_START
switch (*spec)
{
+ case 'E':
+ t = va_arg (*text->args_ptr, tree);
+ if (TREE_CODE (t) == IDENTIFIER_NODE)
+ {
+ pp_identifier (pp, IDENTIFIER_POINTER (t));
+ return true;
+ }
+ break;
+
case 'D':
t = va_arg (*text->args_ptr, tree);
if (DECL_DEBUG_EXPR_IS_FROM (t) && DECL_DEBUG_EXPR (t))
if (DECL_P (t))
{
const char *n = DECL_NAME (t)
- ? lang_hooks.decl_printable_name (t, 2)
- : "<anonymous>";
+ ? identifier_to_locale (lang_hooks.decl_printable_name (t, 2))
+ : _("<anonymous>");
pp_string (pp, n);
}
else
/* This must be done after add_params but before argument processing. */
init_ggc_heuristics();
init_optimization_passes ();
+ statistics_early_init ();
}
/* Return true if the current target supports -fsection-anchors. */
This can happen with incorrect pre-processed input. */
debug_hooks = &do_nothing_debug_hooks;
+ /* This replaces set_Wunused. */
+ if (warn_unused_function == -1)
+ warn_unused_function = warn_unused;
+ if (warn_unused_label == -1)
+ warn_unused_label = warn_unused;
+ /* Wunused-parameter is enabled if both -Wunused -Wextra are enabled. */
+ if (warn_unused_parameter == -1)
+ warn_unused_parameter = (warn_unused && extra_warnings);
+ if (warn_unused_variable == -1)
+ warn_unused_variable = warn_unused;
+ if (warn_unused_value == -1)
+ warn_unused_value = warn_unused;
+
+ /* This replaces set_Wextra. */
+ if (warn_uninitialized == -1)
+ warn_uninitialized = extra_warnings;
+
/* Allow the front end to perform consistency checks and do further
initialization based on the command line options. This hook also
sets the original filename if appropriate (e.g. foo.i -> foo.c)
else
aux_base_name = "gccaux";
+#ifndef HAVE_cloog
+ if (flag_graphite
+ || flag_loop_block
+ || flag_loop_interchange
+ || flag_loop_strip_mine
+ || flag_graphite_identity)
+ sorry ("Graphite loop optimizations cannot be used");
+#endif
+
/* Unrolling all loops implies that standard loop unrolling must also
be done. */
if (flag_unroll_all_loops)
if (flag_asynchronous_unwind_tables)
flag_unwind_tables = 1;
- if (!flag_unit_at_a_time)
- flag_section_anchors = 0;
-
if (flag_value_profile_transformations)
flag_profile_values = 1;
profile_flag = 0;
}
+ if (flag_gtoggle)
+ {
+ if (debug_info_level == DINFO_LEVEL_NONE)
+ debug_info_level = DINFO_LEVEL_NORMAL;
+ else
+ debug_info_level = DINFO_LEVEL_NONE;
+ }
+
+ if (flag_dump_final_insns)
+ {
+ 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;
+ }
+ }
+
/* A lot of code assumes write_symbols == NO_DEBUG if the debugging
level is 0. */
if (debug_info_level == DINFO_LEVEL_NONE)
flag_prefetch_loop_arrays = 0;
}
-#ifndef OBJECT_FORMAT_ELF
-#ifndef OBJECT_FORMAT_MACHO
- if (flag_function_sections && write_symbols != NO_DEBUG)
- warning (0, "-ffunction-sections may affect debugging on some targets");
-#endif
-#endif
-
/* The presence of IEEE signaling NaNs, implies all math can trap. */
if (flag_signaling_nans)
flag_trapping_math = 1;
save_register_info ();
/* Initialize the target-specific back end pieces. */
+ ira_init_once ();
backend_init_target ();
}
+/* Initialize excess precision settings. */
+static void
+init_excess_precision (void)
+{
+ /* Adjust excess precision handling based on the target options. If
+ the front end cannot handle it, flag_excess_precision_cmdline
+ will already have been set accordingly in the post_options
+ hook. */
+ gcc_assert (flag_excess_precision_cmdline != EXCESS_PRECISION_DEFAULT);
+ flag_excess_precision = flag_excess_precision_cmdline;
+ if (flag_unsafe_math_optimizations)
+ flag_excess_precision = EXCESS_PRECISION_FAST;
+ if (flag_excess_precision == EXCESS_PRECISION_STANDARD)
+ {
+ int flt_eval_method = TARGET_FLT_EVAL_METHOD;
+ switch (flt_eval_method)
+ {
+ case -1:
+ case 0:
+ /* Either the target acts unpredictably (-1) or has all the
+ operations required not to have excess precision (0). */
+ flag_excess_precision = EXCESS_PRECISION_FAST;
+ break;
+ case 1:
+ case 2:
+ /* In these cases, predictable excess precision makes
+ sense. */
+ break;
+ default:
+ /* Any other implementation-defined FLT_EVAL_METHOD values
+ require the compiler to handle the associated excess
+ precision rules in excess_precision_type. */
+ gcc_unreachable ();
+ }
+ }
+}
+
/* Initialize things that are both lang-dependent and target-dependent.
This function can be called more than once if target parameters change. */
static void
lang_dependent_init_target (void)
{
+ /* This determines excess precision settings. */
+ init_excess_precision ();
+
/* This creates various _DECL nodes, so needs to be called after the
front end is initialized. It also depends on the HAVE_xxx macros
generated from the target machine description. */
/* Do the target-specific parts of expr initialization. */
init_expr_target ();
- /* Although the actions of init_set_costs are language-independent,
- it uses optabs, so we cannot call it from backend_init. */
+ /* Although the actions of these functions are language-independent,
+ they use optabs, so we cannot call them from backend_init. */
init_set_costs ();
+ ira_init ();
expand_dummy_function_end ();
}
ggc_print_statistics ();
stringpool_statistics ();
dump_tree_statistics ();
+ dump_gimple_statistics ();
dump_rtx_statistics ();
dump_varray_statistics ();
dump_alloc_pool_statistics ();
dump_bitmap_statistics ();
+ dump_vec_loc_statistics ();
dump_ggc_loc_statistics (final);
+ dump_alias_stats (stderr);
+ dump_pta_stats (stderr);
}
/* Clean up: close opened files, etc. */
fatal_error ("error closing %s: %m", asm_file_name);
}
+ statistics_fini ();
finish_optimization_passes ();
+ ira_finish_once ();
+
if (mem_report)
dump_memory_report (true);
compile_file ();
finalize ();
+
+ /* Invoke registered plugin callbacks. */
+ invoke_plugin_callbacks (PLUGIN_FINISH_UNIT, NULL);
}
/* Stop timing and print the times. */
It is not safe to call this function more than once. */
int
-toplev_main (unsigned int argc, const char **argv)
+toplev_main (int argc, char **argv)
{
- save_argv = argv;
+ expandargv (&argc, &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, argv);
+ decode_options (argc, CONST_CAST2 (const char **, char **, argv));
init_local_tick ();
+ initialize_plugins ();
+
+ if (version_flag)
+ print_version (stderr, "");
+
+ if (help_flag)
+ print_plugins_help (stderr, "");
+
/* Exit early if we can (e.g. -help). */
if (!exit_after_options)
do_compile ();
if (warningcount || errorcount)
print_ignored_options ();
+ /* Invoke registered plugin callbacks if any. */
+ invoke_plugin_callbacks (PLUGIN_FINISH, NULL);
+
+ finalize_plugins ();
if (errorcount || sorrycount)
return (FATAL_EXIT_CODE);
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