[Bug tree-optimization/69270] DOM should exploit range information to create more equivalences

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69270

--- Comment #3 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Jan 15 02:45:44 2016
New Revision: 232399

URL: https://gcc.gnu.org/viewcvs?rev=232399&root=gcc&view=rev
Log:
       PR tree-optimization/69270
        * tree-ssa-dom.c (ssa_name_has_boolean_range): If the type has a
        single bit of precision, verify it's also unsigned.
        (record_edge_info): Use constant_boolean_node rather than fold_convert
        to convert boolean_true/boolean_false to the right type.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-dom.c