re PR tree-optimization/50746 (FAIL: gcc.dg/vect/pr37482.c (internal compiler…

re PR tree-optimization/50746 (FAIL: gcc.dg/vect/pr37482.c (internal compiler error) on powerpc-apple-darwin9)

PR 50746
        * optabs.c (expand_vec_perm_expr): Fix indexing error.

From-SVN: r180100

gcc/ChangeLog

+2011-10-17  Richard Henderson  <rth@redhat.com>
+
+	PR 50746
+	* optabs.c (expand_vec_perm_expr): Fix indexing error.
+
 2011-10-17  Sergio Durigan Junior  <sergiodj@redhat.com>
 
 	* configure.ac: Display `yes' if the SystemTap header has been

gcc/optabs.c

@@ -6837,7 +6837,7 @@ expand_vec_perm_expr (tree type, tree v0, tree v1, tree sel, rtx target)
           this_e *= u;
 
 	  for (j = 0; j < u; ++j)
-	    vec[i * e + j] = GEN_INT (this_e + j);
+	    vec[i * u + j] = GEN_INT (this_e + j);
 	}
       sel_rtx = gen_rtx_CONST_VECTOR (qimode, gen_rtvec_v (w, vec));
     }