[PATCH] D30044: [ARM] Enable SMLAL[B|T] instruction selection

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
Herald added subscribers: mgorny, rengolin, aemerson.

Enable the selection of the 64-bit signed multiply accumulate instructions which operate on 16-bit operands. These are enabled for ARMv5TE onwards for ARM and for V6T2 and other DSP enabled Thumb architectures. Added a new file to help with pattern matching across ISelLowering and ISelDAG.


https://reviews.llvm.org/D30044

Files:
  lib/Target/ARM/ARMISelDAGToDAG.cpp
  lib/Target/ARM/ARMISelLowering.cpp
  lib/Target/ARM/ARMISelLowering.h
  lib/Target/ARM/ARMInstrInfo.td
  lib/Target/ARM/ARMInstrThumb2.td
  lib/Target/ARM/ARMPatternHelpers.cpp
  lib/Target/ARM/ARMPatternHelpers.h
  lib/Target/ARM/CMakeLists.txt
  test/CodeGen/ARM/longMAC.ll

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