#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"
const char *main_input_filename;
+#ifndef USE_MAPPED_LOCATION
+location_t unknown_location = { NULL, 0 };
+#endif
+
/* Used to enable -fvar-tracking, -fweb and -frename-registers according
to optimize and default_debug_hooks in process_options (). */
#define AUTODETECT_FLAG_VAR_TRACKING 2
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;
-
-/* A DECL for the current file-scope context. When using IMA, this heads a
- chain of FILE_DECLs; currently only C uses it. */
-
-tree current_file_decl;
+const char * current_function_func_begin_label;
/* Temporarily suppress certain warnings.
This is set while reading code from a system header file. */
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;
-
/* 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 (). */
int flag_var_tracking = AUTODETECT_FLAG_VAR_TRACKING;
+/* True if the user has tagged the function with the 'section'
+ attribute. */
+
+bool user_defined_section_attribute = false;
+
/* Values of the -falign-* flags: how much to align labels in code.
0 means `use default', 1 means `don't align'.
For each variable, there is an _log variant which is the power
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
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));
}
if (needed)
{
reconsider = 1;
- rest_of_decl_compilation (decl, NULL, 1, 1);
+ rest_of_decl_compilation (decl, 1, 1);
}
}
}
{
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);
-
/* 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. */
return;
if (DECL_P (node))
- warning ("`%s' is deprecated (declared at %s:%d)",
- IDENTIFIER_POINTER (DECL_NAME (node)),
- DECL_SOURCE_FILE (node), DECL_SOURCE_LINE (node));
+ {
+ expanded_location xloc = expand_location (DECL_SOURCE_LOCATION (node));
+ warning ("%qs is deprecated (declared at %s:%d)",
+ IDENTIFIER_POINTER (DECL_NAME (node)),
+ xloc.file, xloc.line);
+ }
else if (TYPE_P (node))
{
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 (what)
+ if (decl)
{
- if (decl)
- warning ("`%s' is deprecated (declared at %s:%d)", what,
- DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
+ expanded_location xloc
+ = expand_location (DECL_SOURCE_LOCATION (decl));
+ if (what)
+ warning ("%qs is deprecated (declared at %s:%d)", what,
+ xloc.file, xloc.line);
else
- warning ("`%s' is deprecated", what);
+ warning ("type is deprecated (declared at %s:%d)",
+ xloc.file, xloc.line);
}
- else if (decl)
- warning ("type is deprecated (declared at %s:%d)",
- DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
else
- warning ("type is deprecated");
+ {
+ if (what)
+ warning ("%qs is deprecated", what);
+ else
+ warning ("type is deprecated");
+ }
}
}
INPUT_LOCATION accordingly. */
void
+#ifdef USE_MAPPED_LOCATION
+push_srcloc (location_t fline)
+#else
push_srcloc (const char *file, int line)
+#endif
{
struct file_stack *fs;
fs = xmalloc (sizeof (struct file_stack));
fs->location = input_location;
fs->next = input_file_stack;
+#ifdef USE_MAPPED_LOCATION
+ input_location = fline;
+#else
input_filename = file;
input_line = line;
+#endif
input_file_stack = fs;
input_file_stack_tick++;
}
{
/* 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 ();
/* 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. */
#endif
if (!valid_target_option)
- error ("invalid option `%s'", name);
+ error ("invalid option %qs", name);
}
/* Print version information to FILE.
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
goto make_message;
}
}
- abort ();
+ 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");
sets the original filename if appropriate (e.g. foo.i -> foo.c)
so we can correctly initialize debug output. */
no_backend = lang_hooks.post_options (&main_input_filename);
+#ifndef USE_MAPPED_LOCATION
input_filename = main_input_filename;
+#endif
#ifdef OVERRIDE_OPTIONS
/* Some machines may reject certain combinations of options. */
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 explicitly asked to run new loop optimizer, switch off the old
+ one. */
+ if (flag_loop_optimize2)
+ flag_loop_optimize = 0;
+
+ /* Enable new loop optimizer pass if any of its optimizations is called. */
+ if (flag_move_loop_invariants
+ || flag_unswitch_loops
+ || flag_peel_loops
+ || flag_unroll_loops
+ || flag_branch_on_count_reg)
+ flag_loop_optimize2 = 1;
+
if (flag_non_call_exceptions)
flag_asynchronous_unwind_tables = 1;
if (flag_asynchronous_unwind_tables)
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
/* Enable line number info for traceback. */
|| debug_info_level > DINFO_LEVEL_NONE
#endif
- || flag_test_coverage
- || warn_notreached);
+ || flag_test_coverage);
init_regs ();
init_fake_stack_mems ();
static int
lang_dependent_init (const char *name)
{
+ 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
+ input_location = BUILTINS_LOCATION;
+#else
+ input_filename = "<built-in>";
+ input_line = 0;
+#endif
if (lang_hooks.init () == 0)
return 0;
+ input_location = save_loc;
init_asm_output (name);
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. */
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