On Linux/x86_64,

4cb52980e5d5fb64a393d385923da1b51ab34606 is the first bad commit
commit 4cb52980e5d5fb64a393d385923da1b51ab34606
Author: Martin Liska <mli...@suse.cz>
Date:   Tue Oct 12 14:31:50 2021 +0200

    Eliminate AUTODETECT_VALUE usage in options.

caused

FAIL: gcc.dg/guality/pr54200.c  -Og -DPREVENT_OPTIMIZATION  line 20 z == 3

with GCC configured with

../../gcc/configure 
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-4397/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="guality.exp=gcc.dg/guality/pr54200.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54200.c --target_board='unix{-m64\ 
-march=cascadelake}'"

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