[PATCH] D27657: [X86][SSE] Lower suitably sign-extended mul vXi64 using PMULDQ

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 81011.
RKSimon added a comment.

Improved AVX1 support by adding EXTRACT_SUBVECTOR support to ComputeNumSignBits


Repository:
  rL LLVM

https://reviews.llvm.org/D27657

Files:
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/masked_gather_scatter.ll
  test/CodeGen/X86/pmul.ll
  test/CodeGen/X86/vector-compare-results.ll
  test/CodeGen/X86/vector-trunc-math.ll

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