[Bug c++/56392] Crash while filling an odd-pitch 16bpp image with auto-vectorization enabled on x86_64 Linux platform

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56392



Richard Biener <rguenth at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |RESOLVED

         Resolution|                            |INVALID



--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-19 
11:51:47 UTC ---

You are dereferencing a pointer to uint16_t that is not sufficiently aligned

for that type.  The C standard prohibits this, resulting in undefined behavior.