[r12-4443 Regression] FAIL: 27_io/ios_base/failure/dual_abi.cc execution test on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

93ac832f1846e4867aa6537f76f510fab8e3e87d is the first bad commit
commit 93ac832f1846e4867aa6537f76f510fab8e3e87d
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Thu Oct 7 10:12:29 2021 -0400

    Ranger : Do not process abnormal ssa-names.

caused

FAIL: 27_io/ios_base/failure/dual_abi.cc execution test

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-4443/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}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=27_io/ios_base/failure/dual_abi.cc --target_board='unix{-m32}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=27_io/ios_base/failure/dual_abi.cc --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=27_io/ios_base/failure/dual_abi.cc --target_board='unix{-m64}'"
$ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=27_io/ios_base/failure/dual_abi.cc --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)