/* 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 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
#include "intl.h"
#include "ggc.h"
#include "graph.h"
-#include "loop.h"
#include "regs.h"
#include "timevar.h"
#include "diagnostic.h"
#include "target.h"
#include "langhooks.h"
#include "cfglayout.h"
-#include "tree-alias-common.h"
#include "cfgloop.h"
#include "hosthooks.h"
#include "cgraph.h"
#include "coverage.h"
#include "value-prof.h"
#include "alloc-pool.h"
+#include "tree-mudflap.h"
#if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO)
#include "dwarf2out.h"
or 0 if between functions. */
tree current_function_decl;
-/* Set to the FUNC_BEGIN label of the current function, or NULL_TREE
+/* Set to the FUNC_BEGIN label of the current function, or NULL
if none. */
-tree current_function_func_begin_label;
+const char * current_function_func_begin_label;
/* Temporarily suppress certain warnings.
This is set while reading code from a system header file. */
/* 0 means straightforward implementation of complex divide acceptable.
1 means wide ranges of inputs must work for complex divide.
- 2 means C99-like requirements for complex divide (not yet implemented). */
+ 2 means C99-like requirements for complex multiply and divide. */
-int flag_complex_divide_method = 0;
-
-/* Nonzero means performs web construction pass. When flag_web ==
- AUTODETECT_FLAG_VAR_TRACKING it will be set according to optimize
- and default_debug_hooks in process_options (). */
-
-int flag_web = AUTODETECT_FLAG_VAR_TRACKING;
+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. */
one, unconditionally renumber instruction UIDs. */
int flag_renumber_insns = 1;
-/* Enable points-to analysis on trees. */
-enum pta_type flag_tree_points_to = PTA_NONE;
-
/* Nonzero if we should track variables. When
flag_var_tracking == AUTODETECT_FLAG_VAR_TRACKING it will be set according
to optimize, debug_info_level and debug_hooks in process_options (). */
const char *user_label_prefix;
static const param_info lang_independent_params[] = {
-#define DEFPARAM(ENUM, OPTION, HELP, DEFAULT) \
- { OPTION, DEFAULT, HELP },
+#define DEFPARAM(ENUM, OPTION, HELP, DEFAULT, MIN, MAX) \
+ { OPTION, DEFAULT, MIN, MAX, HELP },
#include "params.def"
#undef DEFPARAM
- { NULL, 0, NULL }
+ { NULL, 0, 0, 0, NULL }
};
+#ifdef TARGET_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.
const char *const description;
}
target_switches[] = TARGET_SWITCHES;
+#endif
/* This table is similar, but allows the switch to have a value. */
FILE *asm_out_file;
FILE *aux_info_file;
FILE *dump_file = NULL;
-FILE *cgraph_dump_file = NULL;
+const char *dump_file_name;
/* The current working directory of a translation. It's generally the
directory from which compilation was initiated, but a preprocessed
get_src_pwd (void)
{
if (! src_pwd)
- src_pwd = getpwd ();
+ {
+ src_pwd = getpwd ();
+ if (!src_pwd)
+ src_pwd = ".";
+ }
return src_pwd;
}
if (*endp != 0)
{
if (pname != 0)
- error ("invalid option argument `%s'", pname);
+ error ("invalid option argument %qs", pname);
return defval;
}
}
/* 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. */
+ If X is 0, return -1. */
int
-floor_log2_wide (unsigned HOST_WIDE_INT x)
+floor_log2 (unsigned HOST_WIDE_INT x)
{
- int t=0;
+ int t = 0;
+
if (x == 0)
return -1;
- if (sizeof (HOST_WIDE_INT) * 8 > 64)
+
+#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;
- if (sizeof (HOST_WIDE_INT) * 8 > 32)
+ if (HOST_BITS_PER_WIDE_INT > 32)
if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 32))
t += 32;
if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 16))
t += 2;
if (x >= ((unsigned HOST_WIDE_INT) 1) << (t + 1))
t += 1;
+#endif
+
return t;
}
/* 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. */
+ if X is a power of 2. Otherwise, returns -1. */
int
-exact_log2_wide (unsigned HOST_WIDE_INT x)
+exact_log2 (unsigned HOST_WIDE_INT x)
{
- /* Test for 0 or a power of 2. */
- if (x == 0 || x != (x & -x))
+ if (x != (x & -x))
return -1;
- return floor_log2_wide (x);
+#ifdef CTZ_HWI
+ return x ? CTZ_HWI (x) : -1;
+#else
+ return floor_log2 (x);
+#endif
}
/* Handler for fatal signals, such as SIGSEGV. These are transformed
crash_signal (int signo)
{
signal (signo, SIG_DFL);
+
+ /* If we crashed while processing an ASM statement, then be a little more
+ graceful. It's most likely the user's fault. */
+ if (this_is_asm_operands)
+ {
+ output_operand_lossage ("unrecoverable error");
+ exit (FATAL_EXIT_CODE);
+ }
+
internal_error ("%s", strsignal (signo));
}
{
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. */
- SET_DECL_RTL (decl, NULL_RTX);
-
+ /* Do not emit debug information about variables that are in
+ static storage, but not defined. */
+ if (TREE_CODE (decl) == VAR_DECL
+ && TREE_STATIC (decl)
+ && !TREE_ASM_WRITTEN (decl))
+ DECL_IGNORED_P (decl) = 1;
+
/* Warn about any function
declared static but not defined.
We don't warn about variables,
&& DECL_INITIAL (decl) == 0
&& DECL_EXTERNAL (decl)
&& ! DECL_ARTIFICIAL (decl)
+ && ! TREE_NO_WARNING (decl)
&& ! TREE_PUBLIC (decl)
&& (warn_unused_function
|| TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))))
{
if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))
- pedwarn ("%J'%F' used but never defined", decl, decl);
+ pedwarn ("%J%qF used but never defined", decl, decl);
else
- warning ("%J'%F' declared `static' but never defined", decl, decl);
+ warning ("%J%qF declared %<static%> but never defined",
+ decl, decl);
/* This symbol is effectively an "extern" declaration now. */
TREE_PUBLIC (decl) = 1;
assemble_external (decl);
&& ! (TREE_CODE (decl) == VAR_DECL && DECL_REGISTER (decl))
/* Otherwise, ask the language. */
&& lang_hooks.decls.warn_unused_global (decl))
- warning ("%J'%D' defined but not used", decl, decl);
+ warning ("%J%qD defined but not used", decl, decl);
/* Avoid confusing the debug information machinery when there are
errors. */
if (DECL_P (node))
{
expanded_location xloc = expand_location (DECL_SOURCE_LOCATION (node));
- warning ("`%s' is deprecated (declared at %s:%d)",
+ warning ("%qs is deprecated (declared at %s:%d)",
IDENTIFIER_POINTER (DECL_NAME (node)),
xloc.file, xloc.line);
}
const char *what = NULL;
tree decl = TYPE_STUB_DECL (node);
- if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
- what = IDENTIFIER_POINTER (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)));
+ if (TYPE_NAME (node))
+ {
+ if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
+ what = IDENTIFIER_POINTER (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)));
+ }
if (decl)
{
expanded_location xloc
= expand_location (DECL_SOURCE_LOCATION (decl));
if (what)
- warning ("`%s' is deprecated (declared at %s:%d)", what,
+ warning ("%qs is deprecated (declared at %s:%d)", what,
xloc.file, xloc.line);
else
warning ("type is deprecated (declared at %s:%d)",
else
{
if (what)
- warning ("type is deprecated");
+ warning ("%qs is deprecated", what);
else
- warning ("`%s' is deprecated", what);
+ warning ("type is deprecated");
}
}
}
{
/* Initialize yet another pass. */
+ init_cgraph ();
init_final (main_input_filename);
coverage_init (aux_base_name);
functions in this compilation unit were deferred. */
coverage_finish ();
+ /* Likewise for mudflap static object registrations. */
+ if (flag_mudflap)
+ mudflap_finish_file ();
+
/* Write out any pending weak symbol declarations. */
weak_finish ();
dw2_output_indirect_constants ();
+ /* Flush any pending external directives. cgraph did this for
+ assemble_external calls from the front end, but the RTL
+ expander can also generate them. */
+ process_pending_assemble_externals ();
+
+ /* Flush any pending equate directives. */
+ process_pending_assemble_output_defs ();
+
/* 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. */
display_target_options (void)
{
int undoc, i;
+ unsigned int cli;
static bool displayed = false;
/* Avoid double printing for --help --target-help. */
displayed = true;
- if (ARRAY_SIZE (target_switches) > 1
+ for (cli = 0; cli < cl_options_count; cli++)
+ if ((cl_options[cli].flags & (CL_TARGET | CL_UNDOCUMENTED)) == CL_TARGET)
+ break;
+
+ if (cli < cl_options_count
+#ifdef TARGET_SWITCHES
+ || ARRAY_SIZE (target_switches) > 1
+#endif
#ifdef TARGET_OPTIONS
|| ARRAY_SIZE (target_options) > 1
#endif
)
{
- int doc = 0;
+ int doc = cli < cl_options_count;
undoc = 0;
printf (_("\nTarget specific options:\n"));
+#ifdef TARGET_SWITCHES
for (i = ARRAY_SIZE (target_switches); i--;)
{
const char *option = target_switches[i].name;
else if (*description != 0)
doc += printf (" -m%-23s %s\n", option, _(description));
}
+#endif
#ifdef TARGET_OPTIONS
for (i = ARRAY_SIZE (target_options); i--;)
doc += printf (" -m%-23s %s\n", option, _(description));
}
#endif
+ print_filtered_help (CL_TARGET);
if (undoc)
{
if (doc)
/* Indexed by enum debug_info_type. */
const char *const debug_type_names[] =
{
- "none", "stabs", "coff", "dwarf-1", "dwarf-2", "xcoff", "vms"
+ "none", "stabs", "coff", "dwarf-2", "xcoff", "vms"
};
/* Decode -m switches. */
void
set_target_switch (const char *name)
{
+#if defined (TARGET_SWITCHES) || defined (TARGET_OPTIONS)
size_t j;
+#endif
int valid_target_option = 0;
+#ifdef TARGET_SWITCHES
for (j = 0; j < ARRAY_SIZE (target_switches); j++)
if (!strcmp (target_switches[j].name, name))
{
}
valid_target_option = 1;
}
+#endif
#ifdef TARGET_OPTIONS
if (!valid_target_option)
}
#endif
- if (!valid_target_option)
- error ("invalid option `%s'", name);
+ if (name[0] != 0 && !valid_target_option)
+ error ("invalid option %qs", name);
}
/* Print version information to FILE.
_("options enabled: "), "");
for (j = 0; j < cl_options_count; j++)
- {
- if (!cl_options[j].flag_var
- || !(cl_options[j].flags & CL_REPORT))
- continue;
-
- if (cl_options[j].has_set_value)
- {
- if (*cl_options[j].flag_var != cl_options[j].set_value)
- continue;
- }
- else
- {
- if (!*cl_options[j].flag_var)
- continue;
- }
-
+ if ((cl_options[j].flags & CL_REPORT)
+ && option_enabled (&cl_options[j]) > 0)
pos = print_single_switch (file, pos, max, indent, sep, term,
"", cl_options[j].opt_text);
- }
/* Print target specific options. */
+#ifdef TARGET_SWITCHES
for (j = 0; j < ARRAY_SIZE (target_switches); j++)
if (target_switches[j].name[0] != '\0'
&& target_switches[j].value > 0
pos = print_single_switch (file, pos, max, indent, sep, term,
"-m", target_switches[j].name);
}
+#endif
#ifdef TARGET_OPTIONS
for (j = 0; j < ARRAY_SIZE (target_options); j++)
else
asm_out_file = fopen (asm_file_name, "w+b");
if (asm_out_file == 0)
- fatal_error ("can't open %s for writing: %m", asm_file_name);
+ fatal_error ("can%'t open %s for writing: %m", asm_file_name);
}
-#ifdef IO_BUFFER_SIZE
- setvbuf (asm_out_file, xmalloc (IO_BUFFER_SIZE),
- _IOFBF, IO_BUFFER_SIZE);
-#endif
-
if (!flag_syntax_only)
{
targetm.asm_out.file_start ();
/* Check target_flags. */
if (memcmp (data, &target_flags, sizeof (target_flags)) != 0)
{
+ int tf;
+
+ memcpy (&tf, data, sizeof (target_flags));
+#ifdef TARGET_SWITCHES
for (i = 0; i < ARRAY_SIZE (target_switches); i++)
{
int bits;
- int tf;
-
- memcpy (&tf, data, sizeof (target_flags));
bits = target_switches[i].value;
if (bits < 0)
goto make_message;
}
}
- abort ();
+#endif
+ for (i = 0; i < cl_options_count; i++)
+ if (cl_options[i].flag_var == &target_flags
+ && (cl_options[i].var_value & (target_flags ^ tf)) != 0)
+ {
+ flag_that_differs = cl_options[i].opt_text + 2;
+ goto make_message;
+ }
+ gcc_unreachable ();
}
data += sizeof (target_flags);
len -= sizeof (target_flags);
make_message:
{
char *r;
- asprintf (&r, _("created and used with differing settings of `-m%s'"),
+ asprintf (&r, _("created and used with differing settings of '-m%s'"),
flag_that_differs);
if (r == NULL)
return _("out of memory");
static bool
default_tree_printer (pretty_printer * pp, text_info *text)
{
+ tree t;
+
switch (*text->format_spec)
{
case 'D':
+ t = va_arg (*text->args_ptr, tree);
+ if (DECL_DEBUG_EXPR (t) && DECL_DEBUG_EXPR_IS_FROM (t))
+ t = DECL_DEBUG_EXPR (t);
+ break;
+
case 'F':
case 'T':
- {
- tree t = va_arg (*text->args_ptr, tree);
- const char *n = DECL_NAME (t)
- ? lang_hooks.decl_printable_name (t, 2)
- : "<anonymous>";
- pp_string (pp, n);
- }
- return true;
+ t = va_arg (*text->args_ptr, tree);
+ break;
default:
return false;
}
+
+ if (DECL_P (t))
+ {
+ const char *n = DECL_NAME (t)
+ ? lang_hooks.decl_printable_name (t, 2)
+ : "<anonymous>";
+ pp_string (pp, n);
+ }
+ else
+ dump_generic_node (pp, t, 0, 0, 0);
+
+ return true;
}
/* Initialization of the front end environment, before command line
if (flag_unroll_all_loops)
flag_unroll_loops = 1;
- if (flag_unroll_loops)
- {
- flag_old_unroll_loops = 0;
- flag_old_unroll_all_loops = 0;
- }
-
- if (flag_old_unroll_all_loops)
- flag_old_unroll_loops = 1;
-
- /* Old 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_old_unroll_loops)
- {
- flag_strength_reduce = 1;
- flag_rerun_cse_after_loop = 1;
- }
+ /* The loop unrolling code assumes that cse will be run after loop. */
if (flag_unroll_loops || flag_peel_loops)
flag_rerun_cse_after_loop = 1;
if (flag_value_profile_transformations)
flag_profile_values = 1;
+ /* Speculative prefetching implies the value profiling. We also switch off
+ the prefetching in the loop optimizer, so that we do not emit double
+ prefetches. TODO -- we should teach these two to cooperate; the loop
+ based prefetching may sometimes do a better job, especially in connection
+ with reuse analysis. */
+ if (flag_speculative_prefetching)
+ {
+ flag_profile_values = 1;
+ flag_prefetch_loop_arrays = 0;
+ }
+
/* Warn about options that are not supported on this machine. */
#ifndef INSN_SCHEDULING
if (flag_schedule_insns || flag_schedule_insns_after_reload)
warning ("this target machine does not have delayed branches");
#endif
- if (flag_tree_based_profiling && flag_test_coverage)
- sorry ("test-coverage not yet implemented in trees.");
if (flag_tree_based_profiling && flag_profile_values)
sorry ("value-based profiling not yet implemented in trees.");
default_debug_hooks = &vmsdbg_debug_hooks;
#endif
+ debug_hooks = &do_nothing_debug_hooks;
if (write_symbols == NO_DEBUG)
- debug_hooks = &do_nothing_debug_hooks;
+ ;
#if defined(DBX_DEBUGGING_INFO)
else if (write_symbols == DBX_DEBUG)
debug_hooks = &dbx_debug_hooks;
debug_type_names[write_symbols]);
/* Now we know which debug output will be used so we can set
- flag_var_tracking, flag_rename_registers and flag_web if the user has
+ flag_var_tracking, flag_rename_registers if the user has
not specified them. */
if (debug_info_level < DINFO_LEVEL_NORMAL
|| debug_hooks->var_location == do_nothing_debug_hooks.var_location)
flag_rename_registers = default_debug_hooks->var_location
!= do_nothing_debug_hooks.var_location;
- if (flag_web == AUTODETECT_FLAG_VAR_TRACKING)
- flag_web = optimize >= 2 && (default_debug_hooks->var_location
- != do_nothing_debug_hooks.var_location);
-
if (flag_var_tracking == AUTODETECT_FLAG_VAR_TRACKING)
flag_var_tracking = optimize >= 1;
{
aux_info_file = fopen (aux_info_file_name, "w");
if (aux_info_file == 0)
- fatal_error ("can't open %s: %m", aux_info_file_name);
+ fatal_error ("can%'t open %s: %m", aux_info_file_name);
}
if (! targetm.have_named_sections)
warning ("-fprefetch-loop-arrays not supported for this target");
flag_prefetch_loop_arrays = 0;
}
+ if (flag_speculative_prefetching)
+ {
+ if (flag_speculative_prefetching_set)
+ warning ("-fspeculative-prefetching not supported for this target");
+ flag_speculative_prefetching = 0;
+ }
#else
if (flag_prefetch_loop_arrays && !HAVE_prefetch)
{
warning ("-fprefetch-loop-arrays not supported for this target (try -march switches)");
flag_prefetch_loop_arrays = 0;
}
+ if (flag_speculative_prefetching && !HAVE_prefetch)
+ {
+ if (flag_speculative_prefetching_set)
+ warning ("-fspeculative-prefetching not supported for this target (try -march switches)");
+ flag_speculative_prefetching = 0;
+ }
#endif
/* This combination of options isn't handled for i386 targets and doesn't
/* The presence of IEEE signaling NaNs, implies all math can trap. */
if (flag_signaling_nans)
flag_trapping_math = 1;
+
+ /* With -fcx-limited-range, we do cheap and quick complex arithmetic. */
+ if (flag_cx_limited_range)
+ flag_complex_method = 0;
}
/* Initialize the compiler back end. */
static void
backend_init (void)
{
- init_adjust_machine_modes ();
-
init_emit_once (debug_info_level == DINFO_LEVEL_NORMAL
|| debug_info_level == DINFO_LEVEL_VERBOSE
#ifdef VMS_DEBUGGING_INFO
#endif
|| flag_test_coverage);
+ init_rtlanal ();
init_regs ();
init_fake_stack_mems ();
init_alias_once ();
{
location_t save_loc = input_location;
if (dump_base_name == 0)
- dump_base_name = name ? name : "gccdump";
+ dump_base_name = name && name[0] ? name : "gccdump";
/* Other front-end initialization. */
#ifdef USE_MAPPED_LOCATION
front end is initialized. */
init_eh ();
init_optabs ();
- init_optimization_passes ();
/* The following initialization functions need to generate rtl, so
provide a dummy function context for them. */
/* Don't do any more if an error has already occurred. */
if (!errorcount)
{
+ /* This must be run always, because it is needed to compute the FP
+ predefined macros, such as __LDBL_MAX__, for targets using non
+ default FP formats. */
+ init_adjust_machine_modes ();
+
/* Set up the back-end if requested. */
if (!no_backend)
backend_init ();
OSDN Git Service
