Re: GDB/Fortran: Support for Assumed Rank Zero.

[Kevin Buettner via Gdb-patches <gdb-patches@sourceware.org>]

On Mon, 18 Apr 2022 08:33:28 -0700
Kevin Buettner via Gdb-patches <gdb-patches@sourceware.org> wrote:

> I'm also (still) wondering how to run the testsuite to use flang
> instead of gfortran since it'd be nice to test to see if the setup_xfail
> actually works.  I spent just enough time looking at it last week
> to convince myself that GDB's testing infrastructure currently lacks the
> mechanisms to do this.  However, I could be wrong, so if someone
> knows how it's done, I'd like to learn about it...

It seems that the answer is to run the test as follows:

make check TESTS="gdb.fortran/assumedrank.exp" RUNTESTFLAGS="F90_FOR_TARGET=flang"

(I thought that I had tried this last week.)

When I run the above command on my Fedora 35 machine, I see:

# of expected passes		500
# of unexpected failures	2503
# of unresolved testcases	500

So it seems that this test doesn't work very well with flang at the
moment.

That being the case, while I'm not against adding setup_xfail for
clang, it doesn't seem all that useful due to the dismal results
when testing against flang.

Kevin