[r11-3258 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g execution test on Linux/x86_64 (-m64 -march=cascadelake)

[sunil.k.pandey]

On Linux/x86_64,

c7f4be78cb61006492d16375aba5392f580cd633 is the first bad commit
commit c7f4be78cb61006492d16375aba5392f580cd633
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Sep 17 11:48:36 2020 +0200

    CSE negated multiplications and divisions

caused

FAIL: gfortran.dg/array_constructor_11.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/array_constructor_11.f90   -O3 -g  execution test

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-3258/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="dg.exp=gfortran.dg/array_constructor_11.f90 --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)