[PATCH] D56864: [x86] vectorize cast ops in lowering to avoid register file transfers

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 185438.
spatel marked an inline comment as done.
spatel added a comment.

Patch updated:

1. Added TODO for handling smaller integers.
2. Removed one-use restriction (still looks worthwhile to avoid the transfer).


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56864/new/

https://reviews.llvm.org/D56864

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/known-bits-vector.ll
  test/CodeGen/X86/known-signbits-vector.ll
  test/CodeGen/X86/vec_int_to_fp.ll

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