[PATCH] D18307: [X86][SSE] Add MULHS/MULHU custom lowering for i8 vectors

[Simon Pilgrim via llvm-commits]

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

Currently this is to mainly to prevent scalarization of integer division by constants.

Repository:
  rL LLVM

http://reviews.llvm.org/D18307

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/vector-idiv-sdiv-128.ll
  test/CodeGen/X86/vector-idiv-sdiv-256.ll
  test/CodeGen/X86/vector-idiv-udiv-128.ll
  test/CodeGen/X86/vector-idiv-udiv-256.ll

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