[Bug gcov-profile/81442] error: verify_flow_info: REG_BR_PROB is set but cfg probability is not during RTL pass: outof_cfglayout

["tschwinge at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81442

Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |openacc
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2017-07-17
                 CC|                            |tschwinge at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |vries at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #3 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
Per my testing, this starts with r249888, "Enable checking of
profile_probability consistency".

Specifically, the ICE is seen for "-O2" testing of both
"libgomp.oacc-c/../libgomp.oacc-c-c++-common/reduction-5.c" and
"libgomp.oacc-c++/../libgomp.oacc-c-c++-common/reduction-5.c".  (Likely) the
same ICE is also seen for "-O2" and "-O3" testing of
"libgomp.oacc-fortran/reduction-6.f90".  Tom's patch does cure these
regressions.