On Wed, 13 Dec 2023 at 10:51, haochen.jiang
<haoch...@ecsmtp.sh.intel.com> wrote:
>
> On Linux/x86_64,
>
> a01462ae8bafa86e7df47a252917ba6899d587cf is the first bad commit
> commit a01462ae8bafa86e7df47a252917ba6899d587cf
> Author: Jonathan Wakely <jwak...@redhat.com>
> Date: Mon Dec 11 15:33:59 2023 +0000
>
> libstdc++: Fix std::format output of %C for negative years
>
> caused
>
> FAIL: std/time/year/io.cc -std=gnu++20 execution test
> FAIL: std/time/year/io.cc -std=gnu++26 execution test
>
> with GCC configured with
>
> ../../gcc/configure
> --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6468/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}/x86_64-linux/libstdc++-v3/testsuite && make check
> RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m32}'"
> $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
> RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m32\
> -march=cascadelake}'"
> $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
> RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m64}'"
> $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check
> RUNTESTFLAGS="conformance.exp=std/time/year/io.cc --target_board='unix{-m64\
> -march=cascadelake}'"
>
> (Please do not reply to this email, for question about this report, contact
> me at haochen dot jiang at intel.com.)
> (If you met problems with cascadelake related, disabling AVX512F in command
> line might save that.)
> (However, please make sure that there is no potential problems with AVX512.)
Thanks, fixed at r14-6493-gad537ccd525fd3
