[r15-3581 Regression] FAIL: gfortran.dg/gomp/interop-1.f90 -O (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

4e9265a474def98cb6cdb59c15fbcb7630ba330e is the first bad commit
commit 4e9265a474def98cb6cdb59c15fbcb7630ba330e
Author: Tobias Burnus <tburnus@baylibre.com>
Date:   Wed Sep 11 09:25:47 2024 +0200

    fortran/openmp.cc: Fix var init and locus use to avoid uninit values [PR fortran/116661]

caused

FAIL: gfortran.dg/gomp/interop-1.f90   -O  (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3581/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="gomp.exp=gfortran.dg/gomp/interop-1.f90 --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/interop-1.f90 --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/interop-1.f90 --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/interop-1.f90 --target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command line might save that.)
(However, please make sure that there is no potential problems with AVX512.)