[Bug tree-optimization/38153] ICE in testcase when compiled with -ftree-parallelize-loops

[reichelt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38153

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |jakub at redhat dot com
      Known to work|                            |5.5.0, 6.4.1, 7.2.1, 8.0
         Resolution|---                         |FIXED
   Target Milestone|---                         |5.5
      Known to fail|6.0                         |5.4.0, 6.1.0, 6.4.0, 7.1.0,
                   |                            |7.2.0

--- Comment #6 from Volker Reichelt <reichelt at gcc dot gnu.org> ---
This was fixed with Jakub's patch for PR81867 which was applied to trunk and
the GCC 7, GCC 6, and GCC 5 branches:

https://gcc.gnu.org/ml/gcc-cvs/2017-08/msg00266.html

Author: jakub
Date: Thu Aug 10 00:33:20 2017
New Revision: 251019

URL: https://gcc.gnu.org/viewcvs?rev=251019&root=gcc&view=rev
Log:
        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:
    trunk/libgomp/testsuite/libgomp.c/pr81687-1.c
    trunk/libgomp/testsuite/libgomp.c/pr81687-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/omp-low.c
    trunk/gcc/tree-cfg.c
    trunk/libgomp/ChangeLog


Jakub, do you want to add the testcase from comment #1 to the testsuite (which
fails more reliably than the original testcase or the testcase from comment #4 
at least on x86_64-pc-linux-gnu). Or do you think the testcases you added are
sufficient?