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Oliver Stannard 03049a3fcc [AArch64] Add ARMv8.2-A Statistical Profiling Extension
The Statistical Profiling Extension is an optional extension to
ARMv8.2-A. Since it is an optional extension, I have added the
FeatureSPE subtarget feature to control it. The assembler-visible parts
of this extension are the new "psb csync" instruction, which is
equivalent to "hint #17", and a number of system registers.

Differential Revision: http://reviews.llvm.org/D15021

llvm-svn: 254401
2015-12-01 10:48:51 +00:00
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2014-03-29 10:18:08 +00:00
2015-09-10 13:44:28 +00:00
2015-11-17 19:00:52 +00:00
2014-06-08 22:29:17 +00:00
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