[PATCH] D12561: [X86][SSE] Match zero/any extension shuffles that don't start from the first element

[Simon Pilgrim via llvm-commits]

RKSimon updated this revision to Diff 34164.
RKSimon added a comment.

Updated SSE2 zero extension by UNPCK - only shuffle odd offsets by a single lane to allow extension to multiple 128-bit vectors to share shuffles.


Repository:
  rL LLVM

http://reviews.llvm.org/D12561

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/machine-cp.ll
  test/CodeGen/X86/vec_cast2.ll
  test/CodeGen/X86/vec_int_to_fp.ll
  test/CodeGen/X86/vector-shuffle-256-v16.ll
  test/CodeGen/X86/vector-shuffle-256-v32.ll
  test/CodeGen/X86/vector-shuffle-sse4a.ll
  test/CodeGen/X86/vector-zext.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D12561.34164.patch
Type: text/x-patch
Size: 50941 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20150907/cb16cf89/attachment.bin>