fortran/

[pf3gnuchains/gcc-fork.git] / gcc / toplev.c

diff --git a/gcc/toplev.c b/gcc/toplev.c
index 29ae065..ae564f0 100644 (file)
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -1,6 +1,6 @@
 /* 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.
 
@@ -267,9 +267,9 @@ int flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN;
 
 /* 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 = 0;
 
 /* Nonzero means that we don't want inlining by virtue of -fno-inline,
    not just because the tree inliner turned us off.  */
@@ -367,11 +367,11 @@ int flag_evaluation_order = 0;
 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 }
 };
 
 /* Here is a table, controlled by the tm.h file, listing each -m switch
@@ -449,7 +449,11 @@ const char *
 get_src_pwd (void)
 {
   if (! src_pwd)
-    src_pwd = getpwd ();
+    {
+      src_pwd = getpwd ();
+      if (!src_pwd)
+       src_pwd = ".";
+    }
 
    return src_pwd;
 }
@@ -819,6 +823,13 @@ check_global_declarations (tree *vec, int len)
     {
       decl = vec[i];
 
+      /* 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,
@@ -1027,6 +1038,14 @@ compile_file (void)
 
   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.  */
@@ -1395,11 +1414,6 @@ init_asm_output (const char *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 ();
@@ -1540,23 +1554,36 @@ default_pch_valid_p (const void *data_p, size_t len)
 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
@@ -1927,8 +1954,6 @@ process_options (void)
 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
@@ -1937,6 +1962,7 @@ backend_init (void)
 #endif
                    || flag_test_coverage);
 
+  init_rtlanal ();
   init_regs ();
   init_fake_stack_mems ();
   init_alias_once ();
@@ -2064,6 +2090,11 @@ do_compile (void)
   /* 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 ();