Include shell command in log file
Merge pull request #2 from eanger/master

Update Byfl with correct upstream changes to LLVM.
New static analysis: Count instructions per inner loop

This was a request from Josh Payne, who's concerned that some of his
inner loops might be fairly large from an instruction-cache
perspective and wanted some reporting to confirm that.

This version of Byfl was tested against LLVM revision 206919.