[Bug target/96855] New: r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[Bug target/96855] New: r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

            Bug ID: 96855
           Summary: r11-571 regression FAIL: gcc.target/i386/pr92658-1.c
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: crazylht at gmail dot com
  Target Milestone: ---
            Target: x86_64-*-* i?86-*-*

On Linux/x86_64,

e740f3d73144abbca1ad98a04825c6bd63314a0b is the first bad commit commit
e740f3d73144abbca1ad98a04825c6bd63314a0b
Author: liuhongt <hongtao.liu@intel.com>
Date:   Wed May 20 15:53:14 2020 +0800

    Add missing vector truncmn2 expanders [PR92658]

caused

FAIL: gcc.target/i386/pr92658-avx512f.c scan-assembler-times vpmovdb 1
FAIL: gcc.target/i386/pr92658-avx512f.c scan-assembler-times vpmovdw 1
FAIL: gcc.target/i386/pr92658-avx512f.c scan-assembler-times vpmovqd 1
FAIL: gcc.target/i386/pr92658-avx512f.c scan-assembler-times vpmovqw 1

with GCC configured with

../../gcc/configure
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-571/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="i386.exp=gcc.target/i386/pr92658-avx512f.c
--target_board='unix{-m64\ -march=cascadelake}'"

[Bug target/96855] r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

--- Comment #1 from Hongtao.liu <crazylht at gmail dot com> ---
Add -mprefer-vector-width=512 to avoid impact of different failure.

[Bug target/96855] r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Hongtao.liu from comment #1)
> Add -mprefer-vector-width=512 to avoid impact of different failure.

Typo: different mtune.

[Bug target/96855] [11 Regression] r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|r11-571 regression FAIL:    |[11 Regression] r11-571
                   |gcc.target/i386/pr92658-1.c |regression FAIL:
                   |                            |gcc.target/i386/pr92658-1.c
   Target Milestone|---                         |11.0

[Bug target/96855] [11 Regression] r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
r11-571-ge740f3d73144abbca1ad98a04825c6bd63314a0b

[Bug target/96855] [11 Regression] r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:

https://gcc.gnu.org/g:8bd5530bfa136663f1fa79e9a1d3932b5adf15bd

commit r11-2990-g8bd5530bfa136663f1fa79e9a1d3932b5adf15bd
Author: liuhongt <hongtao.liu@intel.com>
Date:   Mon Aug 31 10:54:13 2020 +0800

    Adjust testcase.

    gcc/testsuite/ChangeLog:
            PR target/96246
            PR target/96855
            PR target/96856
            PR target/96857
            * g++.target/i386/avx512bw-pr96246-2.C: Add runtime check for
            AVX512BW.
            * g++.target/i386/avx512vl-pr96246-2.C: Add runtime check for
            AVX512BW and AVX512VL
            * g++.target/i386/avx512f-helper.h: New header.
            * gcc.target/i386/pr92658-avx512f.c: Add
            -mprefer-vector-width=512 to avoid impact of different default
            mtune which gcc is built with.
            * gcc.target/i386/avx512bw-pr95488-1.c: Ditto.
            * gcc.target/i386/pr92645-4.c: Add -mno-avx512f to avoid
            impact of different default march which gcc is built with.

[Bug target/96855] [11 Regression] r11-571 regression FAIL: gcc.target/i386/pr92658-1.c

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96855

Hongtao.liu <crazylht at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---
Should be fixed in GCC11.