[r11-3723 Regression] FAIL: gcc.dg/vect/bb-slp-subgroups-3.c scan-tree-dump-times slp2 "optimized: basic block" 2 on Linux/x86_64

[r11-3723 Regression] FAIL: gcc.dg/vect/bb-slp-subgroups-3.c scan-tree-dump-times slp2 "optimized: basic block" 2 on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

532e882f8872b1b4437e3a0fa8c61d2af2d999d4 is the first bad commit
commit 532e882f8872b1b4437e3a0fa8c61d2af2d999d4
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Oct 8 11:53:51 2020 +0200

    adjust BB vectorization dump scanning

caused

FAIL: gcc.dg/vect/bb-slp-pr78205.c -flto -ffat-lto-objects  scan-tree-dump-times slp2 "optimized: basic block" 3
FAIL: gcc.dg/vect/bb-slp-pr78205.c scan-tree-dump-times slp2 "optimized: basic block" 3
FAIL: gcc.dg/vect/bb-slp-subgroups-3.c -flto -ffat-lto-objects  scan-tree-dump-times slp2 "optimized: basic block" 2
FAIL: gcc.dg/vect/bb-slp-subgroups-3.c scan-tree-dump-times slp2 "optimized: basic block" 2

with GCC configured with

Configured with: ../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-3723/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-pr78205.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-pr78205.c --target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-subgroups-3.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-subgroups-3.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)

Re: [r11-3723 Regression] FAIL: gcc.dg/vect/bb-slp-subgroups-3.c scan-tree-dump-times slp2 "optimized: basic block" 2 on Linux/x86_64

[Richard Biener]

On Thu, 8 Oct 2020, sunil.k.pandey wrote:

> On Linux/x86_64,
> 
> 532e882f8872b1b4437e3a0fa8c61d2af2d999d4 is the first bad commit
> commit 532e882f8872b1b4437e3a0fa8c61d2af2d999d4
> Author: Richard Biener <rguenther@suse.de>
> Date:   Thu Oct 8 11:53:51 2020 +0200
> 
>     adjust BB vectorization dump scanning
> 
> caused
> 
> FAIL: gcc.dg/vect/bb-slp-pr78205.c -flto -ffat-lto-objects  scan-tree-dump-times slp2 "optimized: basic block" 3
> FAIL: gcc.dg/vect/bb-slp-pr78205.c scan-tree-dump-times slp2 "optimized: basic block" 3
> FAIL: gcc.dg/vect/bb-slp-subgroups-3.c -flto -ffat-lto-objects  scan-tree-dump-times slp2 "optimized: basic block" 2
> FAIL: gcc.dg/vect/bb-slp-subgroups-3.c scan-tree-dump-times slp2 "optimized: basic block" 2

I filed PR97351 and PR97352 for this, it's really pre-existing issues.

Richard.

> with GCC configured with
> 
> Configured with: ../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-3723/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-pr78205.c --target_board='unix{-m32\ -march=cascadelake}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-pr78205.c --target_board='unix{-m64\ -march=cascadelake}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-subgroups-3.c --target_board='unix{-m32\ -march=cascadelake}'"
> $ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-subgroups-3.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)
> 

-- 
Richard Biener <rguenther@suse.de>
SUSE Software Solutions Germany GmbH, Maxfeldstrasse 5, 90409 Nuernberg,
Germany; GF: Felix Imend