[Bug tree-optimization/60971] [4.9/4.10 Regression] Wrong code when coercing unsigned char to bool

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60971

Marc Glisse <glisse at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-04-26
          Component|c++                         |tree-optimization
            Summary|Wrong code when coercing    |[4.9/4.10 Regression] Wrong
                   |unsigned char to bool       |code when coercing unsigned
                   |                            |char to bool
     Ever confirmed|0                           |1

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
simplify_conversion_from_bitmask (during forwprop3) removes the &1. It may need
a special case for boolean_type.