Jonas Paulsson bb0ed3e732 [DAGTypeLegalizer] Handle SIGN/ZERO_EXTEND in WidenVecRes_Convert(). ...

In case of a SIGN/ZERO_EXTEND of an incomplete vector type (using only a
partial number of available vector elements), WidenVecRes_Convert() used to
resort to scalarization.

This patch adds a handling of the (common) case where an input vector can be
found of same width as the widened result vector, by converting the node to
SIGN/ZERO_EXTEND_VECTOR_INREG.

Review: Eli Friedman
llvm-svn: 293268

2017-01-27 07:46:26 +00:00

2.1 KiB

Raw Blame History

View Raw