[llvm-commits] [PATCH] JIT profiling support with Intel Parallel Amplifier XE 2011 (VTune)

[Bendersky, Eli]

Ping!

> -----Original Message-----
> From: llvm-commits-bounces at cs.uiuc.edu [mailto:llvm-commits-
> bounces at cs.uiuc.edu] On Behalf Of Bendersky, Eli
> Sent: Tuesday, January 31, 2012 11:19
> To: llvm-commits at cs.uiuc.edu
> Subject: [llvm-commits] [PATCH] JIT profiling support with Intel Parallel
> Amplifier XE 2011 (VTune)
> 
> Hello,
> 
> Currently the only profiling LLVM JITted code support is via OProfile. This
> patch adds profiling support for Intel Parallel Amplifier XE 2011 (used to be
> called "VTune"), does some refactoring to share code between the
> implementations, and adds unit tests both for the existing OProfile interface
> and the new Amplifier XE interface. In more detail:
> 
> - Added Intel JIT Events API compatible JITEventListener, and allow
> OProfileJITEventListener to load libopagent.so at runtime
> - Removed link-time requirement on libopagent when building with OProfile
> support
> - Added Intel JIT API and OProfile support to cmake builds (Boolean options
> LLVM_USE_OPROFILE and LLVM_USE_INTEL_JITEVENTS)
> - Added IntelJITEventListener to connect to Intel JIT API (support for profiling
> with Parallel Amplifier XE 2011)
> - Added unit tests for both IntelJIT and OProfile JITEventListener
> implementations which can still be run in the absence the respective 3rd
> party libraries
> 
> The change was broken into several patches. The first contains the new
> implementation and tests. The others are build system changes to
> incorporate the new code.
> 
> This is essentially similar to the patch sent by Daniel Malea in the beginning of
> December, but which unfortunately hasn't received a reply. We updated it to
> cleanly apply to SVN trunk.
> 
> Please review
> 
> Eli
> 
> 
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