[PATCH] D39841: [CodeGenPrepare] Check that erased sunken address are not reused

[Simon Dardis via Phabricator via llvm-commits]

sdardis updated this revision to Diff 123006.
sdardis added a comment.

Address the failures on the sanitizer bots by reworking SunkAddrs in a <Value*, WeakTrackingVH*> map, so that if a computation is erased, the end value is not read after deletion to see if it is still live.


https://reviews.llvm.org/D39841

Files:
  lib/CodeGen/CodeGenPrepare.cpp
  test/Transforms/CodeGenPrepare/Mips/lit.local.cfg
  test/Transforms/CodeGenPrepare/Mips/pr35209.ll

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