Simon Pilgrim 99b925bdf3 [X86][LWP] Add llvm support for LWP instructions (reapplied). ...

This patch adds support for the the LightWeight Profiling (LWP) instructions which are available on all AMD Bulldozer class CPUs (bdver1 to bdver4).

Reapplied - this time without changing line endings of existing files.

Differential Revision: https://reviews.llvm.org/D32769

llvm-svn: 302041

2017-05-03 15:51:39 +00:00

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