[Bug tree-optimization/78024] [7 regression] test cases gfortran.dg/goacc/routine-4.f90 and also routine-5.f90 fail starting with r241296

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78024

--- Comment #9 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
Author: tschwinge
Date: Tue Jan 10 13:02:00 2017
New Revision: 244265

URL: https://gcc.gnu.org/viewcvs?rev=244265&root=gcc&view=rev
Log:
[PR tree-optimization/78024] Clear basic block flags before using BB_VISITED
for OpenACC loops processing

Backport from gcc-6-branch r244264:

        gcc/
        2017-01-10  Thomas Schwinge  <tho...@codesourcery.com>

        PR tree-optimization/78024
        * omp-low.c (oacc_loop_discovery): Call clear_bb_flags.

Backport from trunk r241334:

        gcc/testsuite/
        2016-10-19  Thomas Schwinge  <tho...@codesourcery.com>

        PR tree-optimization/78024
        * gcc.dg/goacc/loop-processing-1.c: New file.

Added:
    branches/gomp-4_0-branch/gcc/testsuite/gcc.dg/goacc/loop-processing-1.c
Modified:
    branches/gomp-4_0-branch/gcc/ChangeLog.gomp
    branches/gomp-4_0-branch/gcc/omp-low.c
    branches/gomp-4_0-branch/gcc/testsuite/ChangeLog.gomp