gallium: Force blend color to 16-byte alignment
This aligns the 4-element color float array to 16 byte boundaries. This should allow compiler vectorizers to generate better optimizations. Also fixes broken vectorization generated by Intel compiler. v2: Fixed indentation and added a lengthy comment explaining the reason for the alignment. Cc: <mesa-stable@lists.freedesktop.org> Reported-by:Tim Rowley <timothy.o.rowley@intel.com> Tested-by:
Tim Rowley <timothy.o.rowley@intel.com> Signed-off-by:
Chuck Atkins <chuck.atkins@kitware.com> Acked-by:
Roland Scheidegger <sroland@vmware.com> (cherry picked from commit d8d6091a)