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

diff --git a/gcc/gcse.c b/gcc/gcse.c
index 6f149bb..0fdc51a 100644 (file)
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -1658,6 +1658,10 @@ compute_transp (const_rtx x, int indx, sbitmap *bmap)
        {
          bitmap_iterator bi;
          unsigned bb_index;
+         rtx x_addr;
+
+         x_addr = get_addr (XEXP (x, 0));
+         x_addr = canon_rtx (x_addr);
 
          /* First handle all the blocks with calls.  We don't need to
             do any list walking for them.  */
@@ -1666,27 +1670,27 @@ compute_transp (const_rtx x, int indx, sbitmap *bmap)
              RESET_BIT (bmap[bb_index], indx);
            }
 
-           /* Now iterate over the blocks which have memory modifications
-              but which do not have any calls.  */
-           EXECUTE_IF_AND_COMPL_IN_BITMAP (modify_mem_list_set,
-                                           blocks_with_calls,
-                                           0, bb_index, bi)
-             {
-               VEC (modify_pair,heap) *list
-                 = canon_modify_mem_list[bb_index];
-               modify_pair *pair;
-               unsigned ix;
+         /* Now iterate over the blocks which have memory modifications
+            but which do not have any calls.  */
+         EXECUTE_IF_AND_COMPL_IN_BITMAP (modify_mem_list_set,
+                                         blocks_with_calls,
+                                         0, bb_index, bi)
+           {
+             VEC (modify_pair,heap) *list
+               = canon_modify_mem_list[bb_index];
+             modify_pair *pair;
+             unsigned ix;
 
-               FOR_EACH_VEC_ELT_REVERSE (modify_pair, list, ix, pair)
-                 {
-                   rtx dest = pair->dest;
-                   rtx dest_addr = pair->dest_addr;
+             FOR_EACH_VEC_ELT_REVERSE (modify_pair, list, ix, pair)
+               {
+                 rtx dest = pair->dest;
+                 rtx dest_addr = pair->dest_addr;
 
-                   if (canon_true_dependence (dest, GET_MODE (dest),
-                                              dest_addr, x, NULL_RTX))
-                     RESET_BIT (bmap[bb_index], indx);
-                 }
-             }
+                 if (canon_true_dependence (dest, GET_MODE (dest),
+                                            dest_addr, x, x_addr))
+                   RESET_BIT (bmap[bb_index], indx);
+               }
+           }
        }
 
       x = XEXP (x, 0);