On 06/20/2017 01:35 PM, Rainer Orth wrote:
> JonY <10walls@gmail.com> writes:
> 
>> On 06/20/2017 01:01 PM, Rainer Orth wrote:
>>> Given that there were no other comments, I've installed the patch.  It
>>> would still be nice if the Cygwin/MingW maintainer could comment on the
>>> testcase situation for those targets.
>>
>> Honestly, I'm not sure how ms-bitfields work on non-Windows targets,
> 
> I just noticed that it's handled in generic code in i386.c and the
> affected tests worked on the likes of Linux and Solaris ;-)

gcc/testsuite/gcc.dg/array-quals-1.c		asm bits probably won't work due to object format difference
gcc/testsuite/gcc.dg/lto/20091013-1_1.c		I'm not familiar with LTO enough to comment on it
gcc/testsuite/gcc.dg/lto/20091013-1_2.c		dto.
gcc/testsuite/gcc.dg/pr32370.c			This probably should be safe to enable for all.
gcc/testsuite/gcc.dg/pr50251.c			dto.
gcc/testsuite/gcc.dg/tls/thr-cse-1.c		I think this should stay as is.
gcc/testsuite/gcc.dg/weak/weak-15.c		ELF weak symbols don't really work on Windows PE format and are known to be broken
gcc/testsuite/gcc.dg/weak/weak-16.c		dto.
gcc/testsuite/gcc.dg/weak/weak-2.c		dto.
gcc/testsuite/gcc.dg/weak/weak-3.c		dto.
gcc/testsuite/gcc.dg/weak/weak-4.c		dto.
gcc/testsuite/gcc.dg/weak/weak-5.c		dto.
libffi/testsuite/libffi.call/cls_longdouble_va.c iirc libffi hasn't been ported for 64bit Windows



gcc/testsuite/g++.dg/abi/bitfield3.C		Should remain 32bit specific
gcc/testsuite/g++.dg/ext/dllexport3.C		Should be x86_64-*-cygwin too
gcc/testsuite/g++.dg/ext/selectany1.C		dto. 
gcc/testsuite/g++.dg/ext/selectany2.C		dto. 
gcc/testsuite/g++.old-deja/g++.ext/attrib5.C	Probably broken due to the underscore prefix in asm names for 32bit mingw/cygwin
gcc/testsuite/gcc.dg/dll-3.c			Should be x86_64-*-cygwin too
gcc/testsuite/gcc.dg/dll-4.c			dto.
gcc/testsuite/gcc.dg/dll-5.c			dto.
gcc/testsuite/gcc.dg/dll-8.c			dto.
gcc/testsuite/gcc.dg/tree-ssa/loop-1.c		dto.
gcc/testsuite/gcc.target/i386/fastcall-1.c	Keep as is, x86 specific test case.

I can't comment on the ARM mingw* port, I have no experience with it.