[PATCH] D38734: [MachineCombiner] Fix initialisation of LastUpdate for incremental update.

[Paul Walker via Phabricator via llvm-commits]

paulwalker-arm created this revision.
Herald added a subscriber: javed.absar.

Fixes a bogus iterator resulting from the removal of a block's first instruction at the point that incremental update is enabled.


https://reviews.llvm.org/D38734

Files:
  lib/CodeGen/MachineCombiner.cpp
  test/CodeGen/AArch64/machine-combiner.mir

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