This is already fixed.
On Thu, 2 Apr 2026 at 09:18, Haochen Jiang <[email protected]> wrote:
>
> On Linux/x86_64,
>
> c9525a790291bb924ac5d9887dd1f57e76a66a03 is the first bad commit
> commit c9525a790291bb924ac5d9887dd1f57e76a66a03
> Author: Jonathan Wakely <[email protected]>
> Date: Mon Mar 30 12:13:39 2026 +0100
>
> libstdc++: Rename saturation arithmetic for C++26 (P4052R0)
>
> caused
>
> FAIL: g++.dg/modules/compile-std1.C module-cmi std.compat
> (gcm.cache/std.compat.gcm)
> FAIL: g++.dg/modules/compile-std1.C module-cmi std (gcm.cache/std.gcm)
> FAIL: g++.dg/modules/compile-std1.C -std=c++26 (test for excess errors)
>
> with GCC configured with
>
> ../../gcc/configure
> --prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-8385/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/compile-std1.C
> --target_board='unix{-m32}'"
> $ cd {build_dir}/gcc && make check
> RUNTESTFLAGS="modules.exp=g++.dg/modules/compile-std1.C
> --target_board='unix{-m32\ -march=cascadelake}'"
> $ cd {build_dir}/gcc && make check
> RUNTESTFLAGS="modules.exp=g++.dg/modules/compile-std1.C
> --target_board='unix{-m64}'"
> $ cd {build_dir}/gcc && make check
> RUNTESTFLAGS="modules.exp=g++.dg/modules/compile-std1.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.)
>
