Testsuite integration for devel/coarray_native

[dhumieres.dominique@free.fr]

Hi Thomas,

> I'm currently trying to put together a testsuite for the shared coarray
> branch.  What I have so far is a directory
> gcc/testsuite/gfortran.dg/caf-shared
> which contains the attached dejagnu file plus the test cases

I don't see the point to introduce a new directory.
IMO all the tests for coarray should pass for shared coarray
and a simple test would be to add

     foreach flags $option_list {
	verbose "Testing $nshort (libcaf_single), $flags" 1
         set gfortran_aux_module_flags "-fcoarray=shared $flags 
-lcaf_shared"
	dg-test $test "-fcoarray=shared $flags -lcaf_shared $maybe_atomic_lib" 
""
	cleanup-modules ""
     }

at the end of gfortran.dg/coarray/caf.exp.
This will cover the check of more than 60 programs.

In addition greping for "fcoarray=" in gfortran.dg shows 200 programs
which should be moved to gfortran.dg/coarray/.

> but I am not sure if this is the right way to go about this
> (would this work in the absence of an installed caf_shared library,
> would this cause lots of failures on systems without pthreads, ...?)

Presently if shared coarray is not supported it is impossible to 
bootstrap.
IMO for the moment it is putting "la charrue avant le boeufs" (the plow
before the oxen) to discuss what to do for the tests before having
a solution to bootstrap without -lcaf_shared.

I don't thing the shared coarray tests should go under libgomp.

Cheers,

Dominique