[r11-7271 Regression] FAIL: g++.dg/modules/pr99023_a.H (test for excess errors) on Linux/x86_64

[Jakub Jelinek]

On Wed, Feb 17, 2021 at 02:19:11PM -0800, sunil.k.pandey via Gcc-patches wrote:
> On Linux/x86_64,
> 
> d8889c99aab4b599aa7ceb7079e69a9766171336 is the first bad commit
> commit d8889c99aab4b599aa7ceb7079e69a9766171336
> Author: Nathan Sidwell <nathan@acm.org>
> Date:   Wed Feb 17 10:43:21 2021 -0800
> 
>     c++: Macros need to be GTY-reachable [PR 99023]
> 
> caused
> 
> FAIL: g++.dg/modules/pr99023_a.H module-cmi ,/pr99023_a.H (gcm.cache/,/pr99023_a.H.gcm)
> FAIL: g++.dg/modules/pr99023_a.H (test for excess errors)
> 
> with GCC configured with
> 
> ../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-7271/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap
> 
> To reproduce:
> 
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/pr99023_a.H --target_board='unix{-m32}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/pr99023_a.H --target_board='unix{-m32\ -march=cascadelake}'"
> 
> (Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)

Yeah:
FAIL: g++.dg/modules/pr99023_a.H (test for excess errors)
Excess errors:
../../..//src/libstdc++-v3/libsupc++/initializer_list:47:11: fatal error: definition of 'class std::initializer_list<_E>' does not match '#include <initializer_list>'
compilation terminated.

	Jakub