[Bug c++/56104] [4.7/4.8 Regression] Wrong "dereferencing type-punned pointer" warning

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56104

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2013-01-25 17:55:22 UTC ---
Author: jason
Date: Fri Jan 25 17:55:09 2013
New Revision: 195470

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195470
Log:
    PR c++/56104
    * typeck.c (get_member_function_from_ptrfunc): Optimize if the
    dynamic type has no virtual functions.

Added:
    trunk/gcc/testsuite/g++.dg/warn/pmf2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/typeck.c
    trunk/gcc/testsuite/g++.old-deja/g++.mike/pmf1.C