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From: Richard Biener <richard.guenther@gmail.com>
To: "sunil.k.pandey" <skpandey@sc.intel.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,
gcc-regression@gcc.gnu.org,
"Andre Vieira (lists)" <andre.simoesdiasvieira@arm.com>
Subject: Re: [r12-4559 Regression] FAIL: gcc.dg/vect/bb-slp-57.c scan-tree-dump-times slp1 "transform load" 1 on Linux/x86_64
Date: Thu, 21 Oct 2021 09:35:44 +0200 [thread overview]
Message-ID: <CAFiYyc3e_R-YoP5JoaQG+cAKA5cXx0GVLP==PZF4Xbz1JwXiVQ@mail.gmail.com> (raw)
In-Reply-To: <CAFiYyc0VdFwrteyKKp4F=RJhi8AZfxOyGjiTSF3hsB7dURT-3Q@mail.gmail.com>
On Thu, Oct 21, 2021 at 9:30 AM Richard Biener
<richard.guenther@gmail.com> wrote:
>
> 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.simoesdiasvieira@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.
For the specific testcase that doesn't help though since there's no
optab for V2SFmode as needed by the testcase.
>
> > 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)
prev parent reply other threads:[~2021-10-21 7:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-21 1:38 sunil.k.pandey
2021-10-21 7:30 ` Richard Biener
2021-10-21 7:35 ` Richard Biener [this message]
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