On Thu, Jul 20, 2023 at 1:46 PM haochen.jiang via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> On Linux/x86_64,
>
> c1e420549f2305efb70ed37e693d380724eb7540 is the first bad commit
> commit c1e420549f2305efb70ed37e693d380724eb7540
> Author: Maciej W. Rozycki <ma...@embecosm.com>
> Date: Wed Jul 19 11:59:29 2023 +0100
>
> testsuite: Add 64-bit vector variant for bb-slp-pr95839.c
I think the issue is we disable V2SF on ia32 because of the conflict
with MMX which we
don't want to use.
> caused
>
> FAIL: gcc.dg/vect/bb-slp-pr95839-v8.c -flto -ffat-lto-objects scan-tree-dump
> slp2 "optimized: basic block"
> FAIL: gcc.dg/vect/bb-slp-pr95839-v8.c scan-tree-dump slp2 "optimized: basic
> block"
>
> with GCC configured with
>
> ../../gcc/configure
> --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-2639/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="vect.exp=gcc.dg/vect/bb-slp-pr95839-v8.c
> --target_board='unix{-m32}'"
> $ cd {build_dir}/gcc && make check
> RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-pr95839-v8.c
> --target_board='unix{-m32\ -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.)
