PR 33870

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

diff --git a/gcc/dojump.c b/gcc/dojump.c
index da162d6..b619e0f 100644 (file)
--- a/gcc/dojump.c
+++ b/gcc/dojump.c
@@ -1,12 +1,13 @@
 /* Convert tree expression to rtl instructions, for GNU compiler.
    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
 /* Convert tree expression to rtl instructions, for GNU compiler.
    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,

-   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+   Free Software Foundation, Inc.

 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free

-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later

 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -15,9 +16,8 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */

 
 #include "config.h"
 #include "system.h"
 
 #include "config.h"
 #include "system.h"


@@ -53,7 +53,8 @@ init_pending_stack_adjust (void)
 /* Discard any pending stack adjustment.  This avoid relying on the
    RTL optimizers to remove useless adjustments when we know the
    stack pointer value is dead.  */
 /* Discard any pending stack adjustment.  This avoid relying on the
    RTL optimizers to remove useless adjustments when we know the
    stack pointer value is dead.  */

-void discard_pending_stack_adjust (void)
+void
+discard_pending_stack_adjust (void)

 {
   stack_pointer_delta -= pending_stack_adjust;
   pending_stack_adjust = 0;
 {
   stack_pointer_delta -= pending_stack_adjust;
   pending_stack_adjust = 0;


@@ -274,10 +275,10 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
           && (mode = mode_for_size (i + 1, MODE_INT, 0)) != BLKmode
           && (type = lang_hooks.types.type_for_mode (mode, 1)) != 0
           && TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (exp))
           && (mode = mode_for_size (i + 1, MODE_INT, 0)) != BLKmode
           && (type = lang_hooks.types.type_for_mode (mode, 1)) != 0
           && TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (exp))

-          && (cmp_optab->handlers[(int) TYPE_MODE (type)].insn_code
+          && (optab_handler (cmp_optab, TYPE_MODE (type))->insn_code

               != CODE_FOR_nothing))
         {
               != CODE_FOR_nothing))
         {

-          do_jump (convert (type, exp), if_false_label, if_true_label);
+          do_jump (fold_convert (type, exp), if_false_label, if_true_label);

           break;
         }
       goto normal;
           break;
         }
       goto normal;


@@ -333,10 +334,10 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
         if (! SLOW_BYTE_ACCESS
             && type != 0 && bitsize >= 0
             && TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (exp))
         if (! SLOW_BYTE_ACCESS
             && type != 0 && bitsize >= 0
             && TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (exp))

-            && (cmp_optab->handlers[(int) TYPE_MODE (type)].insn_code
+            && (optab_handler (cmp_optab, TYPE_MODE (type))->insn_code

                != CODE_FOR_nothing))
           {
                != CODE_FOR_nothing))
           {

-            do_jump (convert (type, exp), if_false_label, if_true_label);
+            do_jump (fold_convert (type, exp), if_false_label, if_true_label);

             break;
           }
         goto normal;
             break;
           }
         goto normal;


@@ -550,37 +551,6 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
        }
       break;
 
        }
       break;
 

-      /* Special case:
-          __builtin_expect (<test>, 0) and
-          __builtin_expect (<test>, 1)
-
-         We need to do this here, so that <test> is not converted to a SCC
-         operation on machines that use condition code registers and COMPARE
-         like the PowerPC, and then the jump is done based on whether the SCC
-         operation produced a 1 or 0.  */
-    case CALL_EXPR:
-      /* Check for a built-in function.  */
-      {
-       tree fndecl = get_callee_fndecl (exp);
-       tree arglist = TREE_OPERAND (exp, 1);
-
-       if (fndecl
-           && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL
-           && DECL_FUNCTION_CODE (fndecl) == BUILT_IN_EXPECT
-           && arglist != NULL_TREE
-           && TREE_CHAIN (arglist) != NULL_TREE)
-         {
-           rtx seq = expand_builtin_expect_jump (exp, if_false_label,
-                                                 if_true_label);
-
-           if (seq != NULL_RTX)
-             {
-               emit_insn (seq);
-               return;
-             }
-         }
-      }
- 

       /* Fall through and generate the normal code.  */
     default:
     normal:
       /* Fall through and generate the normal code.  */
     default:
     normal:


@@ -916,11 +886,26 @@ do_compare_rtx_and_jump (rtx op0, rtx op1, enum rtx_code code, int unsignedp,
                                        if_true_label, if_false_label);
          break;
 
                                        if_true_label, if_false_label);
          break;
 

+       case GTU:
+         do_jump_by_parts_greater_rtx (mode, 1, op0, op1,
+                                       if_false_label, if_true_label);
+         break;
+
+       case GEU:
+         do_jump_by_parts_greater_rtx (mode, 1, op1, op0,
+                                       if_true_label, if_false_label);
+         break;
+

        case LT:
          do_jump_by_parts_greater_rtx (mode, 0, op1, op0,
                                        if_false_label, if_true_label);
          break;
 
        case LT:
          do_jump_by_parts_greater_rtx (mode, 0, op1, op0,
                                        if_false_label, if_true_label);
          break;
 

+       case LE:
+         do_jump_by_parts_greater_rtx (mode, 0, op0, op1,
+                                       if_true_label, if_false_label);
+         break;
+

        case GT:
          do_jump_by_parts_greater_rtx (mode, 0, op0, op1,
                                        if_false_label, if_true_label);
        case GT:
          do_jump_by_parts_greater_rtx (mode, 0, op0, op1,
                                        if_false_label, if_true_label);