On Thu, Oct 21, 2021 at 3:39 AM sunil.k.pandey via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> On Linux/x86_64,
>
> 914045dff10fbd27de27b90a0ac78a0058b2c86e is the first bad commit
> commit 914045dff10fbd27de27b90a0ac78a0058b2c86e
> Author: Andre Simoes Dias Vieira <andre.simoesdiasvie...@arm.com>
> Date: Wed Oct 20 13:12:09 2021 +0100
>
> [Patch][GCC][middle-end] - Generate FRINTZ for (double)(int) under
> -ffast-math on aarch64
>
> caused
>
> FAIL: gcc.dg/vect/bb-slp-57.c -flto -ffat-lto-objects scan-tree-dump-times
> slp1 "transform load" 1
> FAIL: gcc.dg/vect/bb-slp-57.c scan-tree-dump-times slp1 "transform load" 1
That's because
_5 = .TRUNC (_3);
is
(gdb) p gimple_call_nothrow_p (call_stmt)
$2 = false
it is vectorizable though. The conversions the call is synthesized
from are 'nothrow'. I'll fix
that since the nothrow check is irrelevant here.
> with GCC configured with
>
> ../../gcc/configure
> --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-4559/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-57.c --target_board='unix{-m64\
> -march=cascadelake}'"
>
> (Please do not reply to this email, for question about this report, contact
> me at skpgkp2 at gmail dot com)
