[v3] xfail experimental/memory_resource/resource_adaptor.cc on 32-bit Solaris/x86 (PR libstdc++/77691)

[Rainer Orth]

experimental/memory_resource/resource_adaptor.cc currently FAILs on
32-bit Solaris/x86:

Assertion failed: aligned<max_align_t>(p), file /vol/gcc/src/hg/trunk/local/libstdc++-v3/testsuite/experimental/memory_resource/resource_adaptor.cc, line 56, function test05

As detailed in the PR, this happens because Solaris <stddef.h> and the
Studio 12.6 compilers know nothing about __float128/_Float128 and malloc
only returns pointers aligned to 8 bytes, not 16 bytes as expected by
gcc/ginclude/stddef.h (max_align_t).

Thus, while checking if Solaris i386 malloc can be changed here, I'm
xfailing the test.

Tested on i386-pc-solaris2.11, amd64-pc-solaris2.11, and
sparc-sun-solaris2.11.

Ok for mainline?

	Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University


2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

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

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