[PATCH] D36061: [MSP430] Implement multiplication by a constant

[Vadzim Dambrouski via Phabricator via llvm-commits]

pftbest created this revision.
Herald added subscribers: arichardson, sdardis.

The algorithm is borrowed from the Mips backend.

This also makes jumptables more efficient, they no longer require
a libcall.


https://reviews.llvm.org/D36061

Files:
  lib/Target/MSP430/MSP430ISelLowering.cpp
  lib/Target/MSP430/MSP430ISelLowering.h
  test/CodeGen/MSP430/jumptable.ll
  test/CodeGen/MSP430/mul-by-constant.ll

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