http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54767



--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-16 
13:57:53 UTC ---

Author: rguenth

Date: Wed Jan 16 13:57:48 2013

New Revision: 195238



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195238

Log:

2013-01-16  Richard Biener  <rguent...@suse.de>



    PR tree-optimization/54767

    PR tree-optimization/53465

    * tree-vrp.c (vrp_meet_1): Revert original fix for PR53465.

    (vrp_visit_phi_node): For PHI arguments coming via backedges

    drop all symbolical range information.

    (execute_vrp): Compute backedges.



    * gfortran.fortran-torture/execute/pr54767.f90: New testcase.



Added:

    trunk/gcc/testsuite/gfortran.fortran-torture/execute/pr54767.f90

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/testsuite/ChangeLog

    trunk/gcc/tree-vrp.c

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