[r10-9413 Regression] FAIL: gcc.dg/attr-flatten-1.c (test for warnings, line 13) on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

d455130553544ee838b5215e76ccad22304cde39 is the first bad commit
commit d455130553544ee838b5215e76ccad22304cde39
Author: Jason Merrill <jason@redhat.com>
Date:   Thu Feb 11 22:01:19 2021 -0500

    cgraph: flatten and same_body aliases [PR96078]

caused

FAIL: gcc.dg/attr-flatten-1.c  (test for warnings, line 13)

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-10/releases/gcc-10/r10-9413/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=gcc.dg/attr-flatten-1.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/attr-flatten-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/attr-flatten-1.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/attr-flatten-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)