rtlanal.c (noop_move_p): Check the code to be executed for COND_EXEC.

	* rtlanal.c (noop_move_p): Check the code to be executed for
	COND_EXEC.

From-SVN: r200061

gcc/ChangeLog

+2013-06-13  Bin Cheng  <bin.cheng@arm.com>
+
+	* rtlanal.c (noop_move_p): Check the code to be executed for
+	COND_EXEC.
+
 2013-06-13  Marc Glisse  <marc.glisse@inria.fr>
 
 	* tree-ssa-forwprop.c (simplify_bitwise_binary, associate_plusminus):

gcc/rtlanal.c

@@ -1199,6 +1199,10 @@ noop_move_p (const_rtx insn)
   if (find_reg_note (insn, REG_EQUAL, NULL_RTX))
     return 0;
 
+  /* Check the code to be executed for COND_EXEC.  */
+  if (GET_CODE (pat) == COND_EXEC)
+    pat = COND_EXEC_CODE (pat);
+
   if (GET_CODE (pat) == SET && set_noop_p (pat))
     return 1;