[Bug libgomp/80394] Empty OpenMP task is wrongly removed when optimizing

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80394

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Apr 11 17:15:47 2017
New Revision: 246849

URL: https://gcc.gnu.org/viewcvs?rev=246849&root=gcc&view=rev
Log:
        PR libgomp/80394
        * omp-low.c (scan_omp_task): Don't optimize away empty tasks
        if they have any depend clauses.

        * testsuite/libgomp.c/pr80394.c: New test.

Added:
    trunk/libgomp/testsuite/libgomp.c/pr80394.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/omp-low.c
    trunk/libgomp/ChangeLog