[PATCH] D11886: [InstCombine] Move SSE2/AVX2 arithmetic vector shift folding to instcombiner

[Simon Pilgrim via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: andreadb, qcolombet, mkuper.
RKSimon added a subscriber: llvm-commits.
RKSimon set the repository for this revision to rL LLVM.

As discussed in D11760, this patch moves the (V)PSRA(WD) arithmetic shift-by-constant folding to InstCombine to match the logical shift implementations.

Repository:
  rL LLVM

http://reviews.llvm.org/D11886

Files:
  lib/Target/X86/X86ISelLowering.cpp
  lib/Transforms/InstCombine/InstCombineCalls.cpp
  test/CodeGen/X86/combine-avx2-intrinsics.ll
  test/CodeGen/X86/combine-sse2-intrinsics.ll
  test/Transforms/InstCombine/x86-vector-shifts.ll

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