[Bug c/39464] [4.6/4.7/4.8 Regression] Attribute may_alias causes invalid warning

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39464

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |jsm28 at gcc dot gnu.org

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-06 18:21:09 UTC ---
In any case, I'd limit the
              /* If there is a mismatch, do warn.  */
              else if (warn_pointer_sign)
                WARN_FOR_ASSIGNMENT (location, OPT_Wpointer_sign,
                                     G_("pointer targets in passing argument "
                                        "%d of %qE differ in signedness"),
                                     G_("pointer targets in assignment "  
                                        "differ in signedness"),
                                     G_("pointer targets in initialization "
                                        "differ in signedness"),
                                     G_("pointer targets in return differ "
                                        "in signedness"));
warning to actual sign differences only, i.e.