(arm_gen_constant, case IOR,XOR): Don't invert a constant if loading

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

diff --git a/gcc/varasm.c b/gcc/varasm.c
index d6a4250..a8c15df 100644 (file)
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -278,7 +278,7 @@ named_section (decl, name)
 /* Tell the assembler to switch to the bss section.  */
 
 void
-bss_section (decl, name)
+bss_section ()
 {
   if (in_section != in_bss)
     {
@@ -706,23 +706,13 @@ make_decl_rtl (decl, asmspec, top_level)
                globalize_reg (reg_number + --nregs);
            }
        }
-      /* Specifying a section attribute on an uninitialized variable does not
-        (and cannot) cause it to be put in the given section.  The linker
-        can only put initialized objects in specific sections, everything
-        else goes in bss for the linker to sort out later (otherwise the
-        linker would give a duplicate definition error for each compilation
-        unit that behaved thusly).  So warn the user.  */
+      /* Specifying a section attribute on a variable forces it into a
+         non-.bss section, and thus it cannot be common. */
       else if (TREE_CODE (decl) == VAR_DECL
               && DECL_SECTION_NAME (decl) != NULL_TREE
               && DECL_INITIAL (decl) == NULL_TREE
               && DECL_COMMON (decl))
-       {
-         warning_with_decl (decl,
-                            "section attribute ignored for uninitialized variable `%s'");
-         /* Remove the section name so subsequent declarations won't see it.
-            We are ignoring it, remember.  */
-         DECL_SECTION_NAME (decl) = NULL_TREE;
-       }
+          DECL_COMMON (decl) = 0;
 
       /* Now handle ordinary static variables and functions (in memory).
         Also handle vars declared register invalidly.  */
@@ -1719,15 +1709,13 @@ assemble_name (file, name)
      char *name;
 {
   char *real_name;
-  int save_warn_id_clash = warn_id_clash;
+  tree id;
 
   STRIP_NAME_ENCODING (real_name, name);
 
-  /* Don't warn about an identifier name length clash on this name, since
-     it can be a user symbol suffixed by a number.  */
-  warn_id_clash = 0;
-  TREE_SYMBOL_REFERENCED (get_identifier (real_name)) = 1;
-  warn_id_clash = save_warn_id_clash;
+  id = maybe_get_identifier (real_name);
+  if (id)
+    TREE_SYMBOL_REFERENCED (id) = 1;
 
   if (name[0] == '*')
     {
@@ -2796,7 +2784,8 @@ copy_constant (exp)
       return copy_node (exp);
 
     case COMPLEX_CST:
-      return build_complex (copy_constant (TREE_REALPART (exp)),
+      return build_complex (TREE_TYPE (exp),
+                           copy_constant (TREE_REALPART (exp)),
                            copy_constant (TREE_IMAGPART (exp)));
 
     case PLUS_EXPR:
@@ -4216,12 +4205,12 @@ void
 assemble_alias (decl, target)
      tree decl, target;
 {
-#ifdef ASM_OUTPUT_DEF
   char *name;
 
   make_decl_rtl (decl, (char *) 0, 1);
   name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
 
+#ifdef ASM_OUTPUT_DEF
   /* Make name accessible from other files, if appropriate.  */
 
   if (TREE_PUBLIC (decl))
@@ -4240,7 +4229,15 @@ assemble_alias (decl, target)
   ASM_OUTPUT_DEF (asm_out_file, name, IDENTIFIER_POINTER (target));
   TREE_ASM_WRITTEN (decl) = 1;
 #else
-  warning ("alias definitions not supported in this configuration");
+#ifdef ASM_OUTPUT_WEAK_ALIAS
+  if (! DECL_WEAK (decl))
+    warning ("only weak aliases are supported in this configuration");
+
+  ASM_OUTPUT_WEAK_ALIAS (asm_out_file, name, IDENTIFIER_POINTER (target));
+  TREE_ASM_WRITTEN (decl) = 1;
+#else
+  warning ("alias definitions not supported in this configuration; ignored");
+#endif
 #endif
 }