[r13-2446 Regression] FAIL: gfortran.dg/gomp/doacross-5.f90 -O (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

938cda536019cd6a1bc0dd2346381185b420bbf8 is the first bad commit
commit 938cda536019cd6a1bc0dd2346381185b420bbf8
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Mon Sep 5 18:05:24 2022 +0200

    Fortran/openmp: Partial OpenMP 5.2 doacross and omp_cur_iteration support

caused

FAIL: gfortran.dg/gomp/doacross-5.f90   -O   (test for errors, line 28)
FAIL: gfortran.dg/gomp/doacross-5.f90   -O   (test for errors, line 42)
FAIL: gfortran.dg/gomp/doacross-5.f90   -O   (test for errors, line 48)
FAIL: gfortran.dg/gomp/doacross-5.f90   -O   (test for errors, line 55)
FAIL: gfortran.dg/gomp/doacross-5.f90   -O   (test for errors, line 70)
FAIL: gfortran.dg/gomp/doacross-5.f90   -O   (test for errors, line 82)
FAIL: gfortran.dg/gomp/doacross-5.f90   -O  (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-2446/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/doacross-5.f90 --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/doacross-5.f90 --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/doacross-5.f90 --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=gfortran.dg/gomp/doacross-5.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)