* dojump.c (do_jump, MINUS_EXPR): Build NE_EXPR and fall through

	to NE_EXPR case.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99443 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3453669..b309737 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-05-09  David Edelsohn  <edelsohn@gnu.org>
+
+       * dojump.c (do_jump, MINUS_EXPR): Build NE_EXPR and fall through
+       to NE_EXPR case.
+
 2005-05-09  Kazu Hirata  <kazu@cs.umass.edu>
 
        * config/ia64/ia64.c: Fix a comment typo.

diff --git a/gcc/dojump.c b/gcc/dojump.c
index c274a6e..87efb17 100644 (file)
--- a/gcc/dojump.c
+++ b/gcc/dojump.c
@@ -207,14 +207,6 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
       do_jump (TREE_OPERAND (exp, 0), if_false_label, if_true_label);
       break;
 
-    case MINUS_EXPR:
-      /* Nonzero iff operands of minus differ.  */
-      do_compare_and_jump (build2 (NE_EXPR, TREE_TYPE (exp),
-                                  TREE_OPERAND (exp, 0),
-                                  TREE_OPERAND (exp, 1)),
-                           NE, NE, if_false_label, if_true_label);
-      break;
-
     case BIT_AND_EXPR:
       /* fold_single_bit_test() converts (X & (1 << C)) into (X >> C) & 1.
         See if the former is preferred for jump tests and restore it
@@ -369,6 +361,12 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
         break;
       }
 
+    case MINUS_EXPR:
+      /* Nonzero iff operands of minus differ.  */
+      exp = build2 (NE_EXPR, TREE_TYPE (exp),
+                   TREE_OPERAND (exp, 0),
+                   TREE_OPERAND (exp, 1));
+      /* FALLTHRU */
     case NE_EXPR:
       {
         tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));