Re: [r17-459 Regression] FAIL: gcc.dg/pr123286.c (test for excess errors) on Linux/x86_64

Thanks Haochen for bringing that up.

Modified the test case to check for only aarch64 configurations.
The test case contains neon intrinsics related to aarch64 and hence
disabled for other targets.

https://gcc.gnu.org/pipermail/gcc-patches/2026-May/716408.html

Thanks,
Naveen

On Tue, May 12, 2026 at 1:34 PM Haochen Jiang <[email protected]>
wrote:

> On Linux/x86_64,
>
> b20f5c7760e4c5032e8f9d84145d3be7d0238029 is the first bad commit
> commit b20f5c7760e4c5032e8f9d84145d3be7d0238029
> Author: Naveen <[email protected]>
> Date:   Mon May 11 21:08:11 2026 -0700
>
>     tree-optimization: Fold SAT_ADD at gimple level
>
> caused
>
> FAIL: gcc.dg/pr123286.c (test for excess errors)
>
> with GCC configured with
>
> ../../gcc/configure
> --prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-459/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=gcc.dg/pr123286.c
> --target_board='unix{-m32}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr123286.c
> --target_board='unix{-m32\ -march=cascadelake}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr123286.c
> --target_board='unix{-m64}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr123286.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.)
>