/* 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.
/* 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;
+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. */
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. */
get_src_pwd (void)
{
if (! src_pwd)
- src_pwd = getpwd ();
+ {
+ src_pwd = getpwd ();
+ if (!src_pwd)
+ src_pwd = ".";
+ }
return src_pwd;
}
}
/* 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
bool needed = 1;
node = cgraph_varpool_node (decl);
- if (flag_unit_at_a_time && node->finalized)
+ if (node->finalized)
+ needed = 0;
+ else if (node->alias)
needed = 0;
- else if ((flag_unit_at_a_time && !cgraph_global_info_ready)
+ else if (!cgraph_global_info_ready
&& (TREE_USED (decl)
|| TREE_USED (DECL_ASSEMBLER_NAME (decl))))
/* needed */;
{
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,
return;
lang_hooks.decls.final_write_globals ();
-
cgraph_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
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 ();
+
/* 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. */
void
display_target_options (void)
{
- int undoc, i;
+ int undoc;
+#if defined (TARGET_SWITCHES) || defined (TARGET_OPTIONS)
+ int i;
+#endif
+ 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)
+ if (name[0] != 0 && !valid_target_option)
error ("invalid option %qs", name);
}
_("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++)
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;
}
}
+#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);
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
warning ("this target machine does not have delayed branches");
#endif
- if (flag_tree_based_profiling && flag_profile_values)
- sorry ("value-based profiling not yet implemented in trees.");
-
user_label_prefix = USER_LABEL_PREFIX;
if (flag_leading_underscore != -1)
{
/* 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 ();
/* 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 ();
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