[PATCH] PR libstdc++/70940 optimize pmr::resource_adaptor for allocators using malloc

[Rainer Orth]

Hi Jonathan,

> Rainer, this is another place where alignof(max_align_t) gets encoded
> into the ABI, so is affected by PR 77691 as well.

indeed, fixed by the following patch.  Tested on i386-pc-solaris2.11,
ok for mainline?

The ugly thing about xfailing the affected tests is that they will XPASS
once in a while when malloc happens to return 16-byte aligned memory.
However, I'm reluctant to skip them instead at least while there's a
chance that Solaris will fix 32-bit x86 malloc alignment post Solaris
11.4.

	Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University


2018-07-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR libstdc++/77691
	* testsuite/experimental/memory_resource/new_delete_resource.cc:
	xfail execution on 32-bit Solaris/x86.

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