[Bug c++/41313] r150553 causes g++.dg/tree-prof/partition1.C compilation and execution test failures on *-apple-darwin*

["howarth at nitro dot med dot uc dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #28 from howarth at nitro dot med dot uc dot edu  2009-10-02 14:08 -------
On reflection, I think the change Mike proposed for darwin.c in Comment 13
fails because it flag_reorder_blocks never gets set to 1 by that patch. I don't
know how I could implement the three variations of setting that which occur in
opts.c from within the overrides of darwin.c. Those cases in opts.c are listed
as...

  /* The optimization to partition hot and cold basic blocks into separate
     sections of the .o and executable files does not work (currently)
     with exception handling.  This is because there is no support for
     generating unwind info.  If flag_exceptions is turned on we need to
     turn off the partitioning optimization.  */

  /* If user requested unwind info, then turn off the partitioning
     optimization.  */

  /* If the target requested unwind info, then turn off the partitioning
     optimization with a different message.  Likewise, if the target does not
     support named sections.  */

Would it be as simple as duplicating those three variations of the conditional
within the overrides of darwin.c to duplicate their behavior? It seem much
better to fix the breakage in opts.c caused by r150553.


-- 

howarth at nitro dot med dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|g++.dg/tree-                |r150553 causes g++.dg/tree-
                   |prof/partition1.C           |prof/partition1.C
                   |compilation and execution   |compilation and execution
                   |test failures on *-apple-   |test failures on *-apple-
                   |darwin*                     |darwin*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41313