http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55187



Jan Hubicka <hubicka at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |NEW

   Last reconfirmed|                            |2012-11-05

            Summary|[4.8 regression] FAIL:      |[4.8 regression] not able

                   |gcc.dg/autopar/pr49960.c    |to determine number if

                   |scan-tree-dump-times        |iterations of loops with

                   |parloops "SUCCESS: may be   |perfect nest.

                   |parallelized" 0             |

     Ever Confirmed|0                           |1

           Severity|normal                      |enhancement



--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> 2012-11-05 
16:27:17 UTC ---

I fixed autopar testcase by

http://gcc.gnu.org/ml/gcc-patches/2012-11/msg00368.html It was working by

accident, not by design.



We however really miss optimization here: in perfect loop nest the loop headers

should go ahead all the loops (as explained in the mail).  So lets make this PR

to track it.

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