[PATCH][C++] Fix PR86763, wrong-code with TYPE_TYPELESS_STORAGE

[Szabolcs Nagy]

On 20/08/18 10:33, Richard Biener wrote:
> On Mon, 20 Aug 2018, Szabolcs Nagy wrote:
>> On 02/08/18 09:30, Richard Biener wrote:
...
>>> +  clock_gettime(CLOCK_REALTIME, &t);
>>
>> this fails on targets without clock_gettime (baremetal)
>> or targets that need -lrt at link time.
>>
>> can we use something else here?
>> e.g. time(&t) works on baremetal and does not depend on -lrt.
> 
> You'd have to check that the original bug still reproduces.  Since
> it depends on scheduling chances may be that it is fragile :/
> 
> I suppose we could restrict the testcase to { *-*-linux }?
> 

i decided to restrict it to linux:

clock_gettime is not available on some baremetal targets
and may require -lrt on some non-linux targets.

OK for trunk?

gcc/testsuite/ChangeLog:
2018-08-21  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* g++.dg/torture/pr86763.C: Restrict to *-*-linux*.

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