[PATCH] D93764: [LoopUnswitch] Implement first version of partial unswitching.

Thu Jan 28 02:57:53 PST 2021

uabelho added a comment.

Hi!

I started seeing crashes with this patch:

opt -o /dev/null bbi-52312.ll -loop-unswitch

Result:

opt: ../lib/Analysis/MemorySSAUpdater.cpp:1154: void llvm::MemorySSAUpdater::applyInsertUpdates(ArrayRef<llvm::CFGUpdate>, llvm::DominatorTree &, const GraphDiff<llvm::BasicBlock *> *): Assertion `IDom && "Block must have a valid IDom."' failed.

F15216359: bbi-52312.ll <https://reviews.llvm.org/F15216359>

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93764/new/

https://reviews.llvm.org/D93764