simplify-rtx.c (simplify_binary_operation_1): Do not simplify a division of 0 if…

simplify-rtx.c (simplify_binary_operation_1): Do not simplify a division of 0 if non-call exceptions are enabled.

	* simplify-rtx.c (simplify_binary_operation_1) <UDIV>: Do not simplify
	a division of 0 if non-call exceptions are enabled.

From-SVN: r249188

gcc/ChangeLog

+2017-06-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* simplify-rtx.c (simplify_binary_operation_1) <UDIV>: Do not simplify
+	a division of 0 if non-call exceptions are enabled.
+
 2017-06-14  Andrew Pinski  <apinski@cavium.com>
 	    Naveen H.S  <Naveen.Hurugalawadi@cavium.com>
 

gcc/simplify-rtx.c

@@ -3194,7 +3194,8 @@ simplify_binary_operation_1 (enum rtx_code code, machine_mode mode,
 
     case UDIV:
       /* 0/x is 0 (or x&0 if x has side-effects).  */
-      if (trueop0 == CONST0_RTX (mode))
+      if (trueop0 == CONST0_RTX (mode)
+	  && !cfun->can_throw_non_call_exceptions)
 	{
 	  if (side_effects_p (op1))
 	    return simplify_gen_binary (AND, mode, op1, trueop0);