[Bug tree-optimization/57370] [4.9 Regression] compiler hangs in reassoc

[eraman at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57370

--- Comment #10 from eraman at gcc dot gnu.org ---
Author: eraman
Date: Wed Sep  4 17:48:15 2013
New Revision: 202262

URL: http://gcc.gnu.org/viewcvs?rev=202262&root=gcc&view=rev
Log:
2013-09-04  Easwaran Raman  <eraman@google.com>

    PR middle-end/57370
    PR tree-optimization/58011
    * tree-ssa-reassoc.c (get_stmt_uid_with_default): New function,
    (build_and_add_sum): Use it.
    (appears_later_in_bb): Simplify code.

gcc/testsuite/ChangeLog:
2013-09-04  Easwaran Raman  <eraman@google.com>

    PR middle-end/57370
    PR tree-optimization/58011
    * gfortran.dg/reassoc_12.f90: New testcase.
    * gcc.dg/tree-ssa/reassoc-31.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/reassoc-31.c
    trunk/gcc/testsuite/gfortran.dg/reassoc_12.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c