[r12-6740 Regression] FAIL: gcc.dg/vect/slp-reduc-1.c scan-tree-dump-times vect "vectorizing stmts using SLP" 1 on Linux/x86_64

[r12-6740 Regression] FAIL: gcc.dg/vect/slp-reduc-1.c scan-tree-dump-times vect "vectorizing stmts using SLP" 1 on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

f4ca0a53be18dfc7162fd5dcc1e73c4203805e14 is the first bad commit
commit f4ca0a53be18dfc7162fd5dcc1e73c4203805e14
Author: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date:   Wed Jan 19 14:11:32 2022 +0000

    vect: Fix epilogue mode skipping

caused

FAIL: gcc.dg/vect/bb-slp-cond-1.c -flto -ffat-lto-objects  scan-tree-dump-times vect "loop vectorized" 1
FAIL: gcc.dg/vect/bb-slp-cond-1.c scan-tree-dump-times vect "loop vectorized" 1
FAIL: gcc.dg/vect/fast-math-vect-call-2.c scan-tree-dump-times vect "vectorizing stmts using SLP" 4
FAIL: gcc.dg/vect/slp-perm-9.c -flto -ffat-lto-objects  scan-tree-dump-not vect "permutation requires at least three vectors"
FAIL: gcc.dg/vect/slp-perm-9.c scan-tree-dump-not vect "permutation requires at least three vectors"
FAIL: gcc.dg/vect/slp-reduc-1.c -flto -ffat-lto-objects  scan-tree-dump-times vect "vectorizing stmts using SLP" 1
FAIL: gcc.dg/vect/slp-reduc-1.c scan-tree-dump-times vect "vectorizing stmts using SLP" 1

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-6740/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-cond-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-cond-1.c --target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/fast-math-vect-call-2.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-perm-9.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-perm-9.c --target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-reduc-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-reduc-1.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)