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Subject: [Bug c/39464] [4.6/4.7/4.8 Regression] Attribute may_alias causes invalid warning
Date: Fri, 07 Dec 2012 16:42:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39464

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-07 16:41:36 UTC ---
Created attachment 28897
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28897
gcc48-pr39464.patch

Andrew, you were right, and a regtest with the patch I've outlined actually
showed it clearly.  For unsigned int __attribute__((may_alias)) vs. normal
unsigned int pointer we already warn about incompatible pointer type, so I'll
try the attached patch now instead.