Commit Graph

1 Commits

Author SHA1 Message Date
Evan Cheng 4fbf459549 - Improved v8i16 shuffle lowering. It now uses pshuflw and pshufhw as much as
possible before resorting to pextrw and pinsrw.
- Better codegen for v4i32 shuffles masquerading as v8i16 or v16i8 shuffles.
- Improves (i16 extract_vector_element 0) codegen by recognizing
  (i32 extract_vector_element 0) does not require a pextrw.

llvm-svn: 44836
2007-12-11 01:46:18 +00:00