Fix to make sure we're generating 32-bit gather/scatter when force32bitaddressing is set.
Merge pull request #463 from jbrodman/master

Fix to avoid generating 64-bit gather/scatter when force32BitAddressing is set
Broadcast implementation as InsertElement+Shuffle and related improvements
ctx.h copyright fix
Additional cleanup to enable more broadcasts
Changes in cbackend.cpp to match broadcast generation changes
Merge pull request #467 from dbabokin/broadcast

Broadcast implementation as InsertElement+Shuffle and related improvements