[PATCH] D49560: Add support to track total counts for DebugCounter

[Zhizhou Yang via Phabricator via llvm-commits]

zhizhouy created this revision.
zhizhouy added a reviewer: george.burgess.iv.
Herald added a subscriber: Prazek.

This patch introduces a new member Count to DebugCounter so that it now can track the total number of execution for the Counter.

Adding this feature will help us to do automated transformation level bisecting better using DebugCounter.

One (only) use case in NewGVN.cpp is also modified since we changed related functions.

We are planning to add an actual printing for this info in a follow-up.


Repository:
  rL LLVM

https://reviews.llvm.org/D49560

Files:
  include/llvm/Support/DebugCounter.h
  lib/Support/DebugCounter.cpp
  lib/Transforms/Scalar/NewGVN.cpp

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