re PR middle-end/50074 (gcc.dg/sibcall-6.c execution test on x86_64 with -fPIC)

	PR middle-end/50074
	* expr.c (expand_expr_addr_expr_1): Don't call force_operand for
	EXPAND_SUM modifier.

From-SVN: r181800

gcc/ChangeLog

+2011-11-29  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/50074
+	* expr.c (expand_expr_addr_expr_1): Don't call force_operand for
+	EXPAND_SUM modifier.
+
 2011-11-29  Ira Rosen  <ira.rosen@linaro.org>
 
 	PR tree-optimization/51301

gcc/expr.c

@@ -7452,7 +7452,8 @@ expand_expr_addr_expr_1 (tree exp, rtx target, enum machine_mode tmode,
 	    }
 
 	  if (modifier != EXPAND_INITIALIZER
-	      && modifier != EXPAND_CONST_ADDRESS)
+	      && modifier != EXPAND_CONST_ADDRESS
+	      && modifier != EXPAND_SUM)
 	    result = force_operand (result, target);
 	  return result;
 	}