[PATCH, Fortran] Wrong invocation of caf_atomic_op

Tobias Burnus burnus@net-b.de
Mon Sep 15 21:29:00 GMT 2014

On 15.09.2014 22:23, Alessandro Fanfarillo wrote:
> In attachment a test case which fails with the current gcc-trunk
> version but works when the patch is applied. coarray_35.f90 is my
> attempt to write a gcc test case.
> The problem is related with atomic_add.

Well, if it is a "dg-do compile" test, it won't exercise the issue: Even 
without the patch, it was compiling.

It should either be a run test (dg-do run) – and then under 
gfortran.dg/coarray/ - which will automatically link libcaf_single to 
it. (And do another run with -fcoarray=single). – Or you have to 
additionally use -fdump-tree-original and scan for the strings, using 
"dg-final { scan-tree-dump-times ... or scan-tree-dump-not. See other 
test cases there.

I think ATOMIC_ADD should also fail without the patch, i.e. the run test 
really would test whether it works. Thus, that might be the simpler 
option. Or you do both – but the dump one shouldn't be under 
gfortran.dg/coarray/ as that is also run with -fcoarray=single, but 
under gfortran.dg/ directly.


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