re PR rtl-optimization/11319 (loop miscompiled on ppc32)

PR optimization/11319
PR target/10021
* alias.c (find_base_value, case REG): Return 0 not src if no base
found.

From-SVN: r70359

gcc/ChangeLog

+2003-08-11  James E Wilson  <wilson@tuliptree.org>
+
+	PR optimization/11319
+	PR target/10021
+	* alias.c (find_base_value, case REG): Return 0 not src if no base
+	found.
+
 2003-08-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* gcse.c (gmalloc): Fix last change.

gcc/alias.c

@@ -782,7 +782,7 @@ find_base_value (rtx src)
 	    return reg_base_value[regno];
 	}
 
-      return src;
+      return 0;
 
     case MEM:
       /* Check for an argument passed in memory.  Only record in the