[PATCH] D50210: Introduce DebugCounter into MergedLoadStoreMotion pass

[Zhizhou Yang via Phabricator via llvm-commits]

zhizhouy created this revision.
zhizhouy added reviewers: george.burgess.iv, Gerolf.

This patch introduces DebugCounter into MergedLoadStoreMotion pass at per-transformation level.

It will provide an option to skip first n or stop after n transformations for the whole MergedLoadStoreMotion pass.

This will make debug easier for the pass, also providing chance to do transformation level bisecting.


Repository:
  rL LLVM

https://reviews.llvm.org/D50210

Files:
  lib/Transforms/Scalar/MergedLoadStoreMotion.cpp
  test/Other/debugcounter-instmerge.ll

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