[PATCH] D11518: [DAGCombiner] Convert constant AND masks to shuffle clear masks down to the byte level

[Simon Pilgrim]

RKSimon updated this revision to Diff 31011.
RKSimon added a comment.

rebased


Repository:
  rL LLVM

http://reviews.llvm.org/D11518

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/avx2-conversions.ll
  test/CodeGen/X86/masked_memop.ll
  test/CodeGen/X86/sse2-vector-shifts.ll
  test/CodeGen/X86/sse3.ll
  test/CodeGen/X86/vec_cast2.ll
  test/CodeGen/X86/vec_int_to_fp.ll
  test/CodeGen/X86/vector-zext.ll
  test/CodeGen/X86/vselect-avx.ll
  test/CodeGen/X86/widen_load-2.ll

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