On Linux/x86_64,
9d3467a14bbd75469f114b047590ebbffa4a9c8b is the first bad commit
commit 9d3467a14bbd75469f114b047590ebbffa4a9c8b
Author: Patrick Palka <ppa...@redhat.com>
Date: Fri Jun 27 13:53:26 2025 -0400
libstdc++: Directly implement ranges::inplace_merge [PR100795]
caused
FAIL: 25_algorithms/inplace_merge/constrained.cc -std=gnu++20 (test for excess
errors)
FAIL: 25_algorithms/inplace_merge/constrained.cc -std=gnu++26 (test for excess
errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-1742/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=25_algorithms/inplace_merge/constrained.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.)
