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9cefba091e
This change adds SMAC (signed multiply-accumulate) and UMAC (unsigned multiply-accumulate) for LEON subtargets of the Sparc processor. The new files LeonFeatures.td and leon-instructions.ll will both be expanded in future, so I want to leave them separate as small files for this review, to be expanded in future check-ins. Note: The functions are provided only for inline-assembly provision. No DAG selection is provided. Differential Revision: http://reviews.llvm.org/D19911 llvm-svn: 268908