[Fortran, committed] Fix bugs in the dg-* directives in the test suite (was: testsuite oddities)

[Mike Stump]

[ sorry for the dup ]

On Jun 4, 2013, at 12:37 AM, Tobias Burnus <burnus@net-b.de> wrote:
> I think some of the test cases might to it on purpose: "dg-do  run" causes the test case to run only once while "dg-do run" runs multiple times with different options. If the testcase is supposed to test the run-time library, calling it multiple times is pointless. Admittedly, using two spaces is an ugly hack,

:-o, The things we never knew.  Anyway, use of hacks like this, should result in the hack being documented.  At least then we can find them with find-grep in emacs, and know about it.  I'm not in favor of using hacks like this, I don't endorse it.  If someone wants to approve such a patch in their part of the test suite, that's fine with me.

> but creating a "dg-do run-single" is difficult.

Well, my first question is, why can't test cases that run in a context that means, run multiple times, be moved from that context, to a context that means, run once?  Seems straight forward.  In the C test suite, that would be moving from \*torture to \* (other than torture), usually.  If fortran doesn't have a run once context, seems reasonable to create one, I'd recommend doing this once there are 20 or more test cases that use the hack.