[PATCH] [x86] Add a ZERO_EXTEND_VECTOR_INREG DAG node and use it when widening vector types to be legal and a ZERO_EXTEND node is encountered.

Nadav Rotem nrotem at apple.com
Mon Jul 7 16:50:07 PDT 2014


LGTM.

http://reviews.llvm.org/D4405






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