[PATCH] D20995: Statistic: Add machine parseable name, value pair output

[Matthias Braun via llvm-commits]

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This adds an option to output statistics in a form that easily parseable
by machines:
- We lacked a short unique identifier for a statistics, so I renamed the
  current "Name" field that just contained the DEBUG_TYPE name of the
  current file to DebugType and added a new "Name" field that contains
  the C++ identifier of the statistic variable.
- Add the -stats-csv option which outputs one statistic per line as:
  "debugtype.name,value"


I have heard there are plans to add a fancier json output for this, but until this happens this should be a good option to enable easier data analysis on compiler statistics.

Repository:
  rL LLVM

http://reviews.llvm.org/D20995

Files:
  include/llvm/ADT/Statistic.h
  lib/Support/Statistic.cpp

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