[Bug middle-end/57955] [4.6/4.7/4.8/4.9 Regression] Uniquization of constants reduces alignment of initializers

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57955

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Uniquization of constants   |[4.6/4.7/4.8/4.9
                   |breaks constant alignment   |Regression] Uniquization of
                   |                            |constants reduces alignment
                   |                            |of initializers

--- Comment #5 from David Edelsohn <dje at gcc dot gnu.org> ---
It was an undocumented change in GCC behavior.

I infer from the name that the testcase was trying to test that a block move of
appropriate alignment used VMX instructions. I will see if I can construct a
testcase with memcpy directly.