[PATCH] D55974: [GVN] Update BlockRPONumber prior to use.

[Matt Davis via Phabricator via llvm-commits]

mattd updated this revision to Diff 180961.
mattd added a comment.

- Moved the logic for controlling access to performPRE/performScalarPRE functions into a separate patch.
- Added an assertion that will trigger on 9 tests if the BlockRPONumber map is invalid. In particular, `test/Transforms/GVN/nonescaping-malloc.ll`, which also requires an assert build when testing.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55974/new/

https://reviews.llvm.org/D55974

Files:
  include/llvm/Transforms/Scalar/GVN.h
  lib/Transforms/Scalar/GVN.cpp

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