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.)
