On April 4, 2020 12:42:33 AM GMT+02:00, Jakub Jelinek wrote:
>On Fri, Apr 03, 2020 at 07:42:10PM +0200, Jakub Jelinek via Gcc-patches
>wrote:
>> Or, to avoid the repetitive code, should I introduce
>> static bool
>> cselib_useless_value_p (cselib_val *v)
>> {
>> return (v->locs == 0
>>&&
On Fri, Apr 03, 2020 at 07:42:10PM +0200, Jakub Jelinek via Gcc-patches wrote:
> Or, to avoid the repetitive code, should I introduce
> static bool
> cselib_useless_value_p (cselib_val *v)
> {
> return (v->locs == 0
> && !PRESERVED_VALUE_P (v->val_rtx)
> && !SP_DERIVED_VALUE_P (v-
Hi!
The following testcase ICEs, because at one point we see the
SP_DERIVED_VALUE_P VALUE as useless (not PRESERVED_VALUE_P and no locs)
and so expect it to be discarded as useless. But, later on we
are adding some new VALUE that is equivalent to it, and when adding
the equivalency that that new
