Creating release candidate rc2 from release_351 branch
llvm-svn: 224632
Merging r218054:
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r218054 | kongyi | 2014-09-18 16:50:47 +0100 (Thu, 18 Sep 2014) | 9 lines
Make the use of Perf optional
Do not try to automatically detect and use perf on Linux, thus giving
user more control of which tool to use.
Also this fixes the mistake that Perf wasn't used when not using
user mode emulation.
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llvm-svn: 224573
2 files changed
