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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
This commit is contained in:
Eric Botcazou 2017-06-14 10:40:34 +00:00 committed by Eric Botcazou
parent 85c1b6d7c8
commit 9348614880
2 changed files with 7 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
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> 2017-06-14 Andrew Pinski <apinski@cavium.com>
Naveen H.S <Naveen.Hurugalawadi@cavium.com> Naveen H.S <Naveen.Hurugalawadi@cavium.com>

3
gcc/simplify-rtx.c
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@ -3194,7 +3194,8 @@ simplify_binary_operation_1 (enum rtx_code code, machine_mode mode,
case UDIV: case UDIV:
/* 0/x is 0 (or x&0 if x has side-effects). */ /* 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)) if (side_effects_p (op1))
return simplify_gen_binary (AND, mode, op1, trueop0); return simplify_gen_binary (AND, mode, op1, trueop0);