On Linux/x86_64,

c2b610e7c6c89fd422c5c31f01023bcddf3cf4a5 is the first bad commit
commit c2b610e7c6c89fd422c5c31f01023bcddf3cf4a5
Author: Zhao Wei Liew <zhaoweil...@gmail.com>
Date:   Fri Jan 28 13:36:39 2022 -0500

    match.pd: Simplify 1 / X for integer X [PR95424]

caused

FAIL: gcc.dg/tree-ssa/divide-7.c scan-tree-dump optimized ".. <= 2 ? x_..D. : 
0;"
FAIL: libgomp.c++/pr86291.C execution test

with GCC configured with

../../gcc/configure 
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-6924/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="tree-ssa.exp=gcc.dg/tree-ssa/divide-7.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/divide-7.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/divide-7.c 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/divide-7.c 
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/pr86291.C --target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/pr86291.C --target_board='unix{-m32\ 
-march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/pr86291.C --target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libgomp/testsuite && make check 
RUNTESTFLAGS="c++.exp=libgomp.c++/pr86291.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)

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