[Bug c/81687] Compiler drops label in OpenMP region

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81687

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Sep 15 21:37:16 2017
New Revision: 252858

URL: https://gcc.gnu.org/viewcvs?rev=252858&root=gcc&view=rev
Log:
        Backported from mainline
        2017-08-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/81687
        * omp-low.c (omp_copy_decl): Don't remap FORCED_LABEL or DECL_NONLOCAL
        LABEL_DECLs.
        * tree-cfg.c (move_stmt_op): Don't adjust DECL_CONTEXT of FORCED_LABEL
        or DECL_NONLOCAL labels.
        (move_stmt_r) <case GIMPLE_LABEL>: Adjust DECL_CONTEXT of FORCED_LABEL
        or DECL_NONLOCAL labels here.

        * testsuite/libgomp.c/pr81687-1.c: New test.
        * testsuite/libgomp.c/pr81687-2.c: New test.

Added:
    branches/gcc-6-branch/libgomp/testsuite/libgomp.c/pr81687-1.c
    branches/gcc-6-branch/libgomp/testsuite/libgomp.c/pr81687-2.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/omp-low.c
    branches/gcc-6-branch/gcc/tree-cfg.c
    branches/gcc-6-branch/libgomp/ChangeLog