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[patch] Fix violation of self-assignment check in GCC source [2/4]


This patch fix the warning triggered by self-assignment check in
gcc/tree-ssa-ccp.c. Bootstrapped and tested on x86_64-gnu-linux. OK
for trunk?

Thanks,

Le-chun

2010-07-21  Le-Chun Wu  <lcwu@google.com>

       * tree-ssa-ccp.c (ccp_lattice_meet): Remove a self-assign statement
       and an unnecessary assignment.



Index: gcc/tree-ssa-ccp.c
===================================================================
--- gcc/tree-ssa-ccp.c  (revision 162385)
+++ gcc/tree-ssa-ccp.c  (working copy)
@@ -730,9 +730,8 @@ ccp_lattice_meet (prop_value_t *val1, pr
         Ci M Cj = VARYING      if (i != j)

          If these two values come from memory stores, make sure that
-        they come from the same memory reference.  */
-      val1->lattice_val = CONSTANT;
-      val1->value = val1->value;
+        they come from the same memory reference.
+         Nothing to do.  VAL1 already contains the value we want.  */
     }
   else
     {


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