On Linux/x86_64,
c55c1de3a9adb241e3c0dabd7d1edd8ebe9c065f is the first bad commit
commit c55c1de3a9adb241e3c0dabd7d1edd8ebe9c065f
Author: Jonathan Wakely <[email protected]>
Date: Tue Oct 28 12:15:52 2025 +0000
libstdc++: Simplify std::regex_traits::value
caused
FAIL: g++.dg/warn/uninit-pr105562.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/warn/uninit-pr105562.C -std=gnu++17 (test for excess errors)
FAIL: g++.dg/warn/uninit-pr105562.C -std=gnu++26 (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-4709/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="dg.exp=g++.dg/warn/uninit-pr105562.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=g++.dg/warn/uninit-pr105562.C --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=g++.dg/warn/uninit-pr105562.C --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=g++.dg/warn/uninit-pr105562.C --target_board='unix{-m64\
-march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(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.)
