[PATCH] D86534: [GVN] Preserve MemorySSA if it is available.

[Mikael Holmén via Phabricator via llvm-commits]

uabelho added a comment.

Hi!

The following crashes for me with this patch
 opt -memoryssa -gvn -early-cse-memssa -S -o - foo.ll

with foo.ll being just

  define void @f() {
  entry:
    unreachable
  }

I get

  opt: ../lib/IR/LegacyPassManager.cpp:657: void llvm::PMTopLevelManager::setLastUser(ArrayRef<llvm::Pass *>, llvm::Pass *): Assertion `AnalysisPass && "Expected analysis pass to exist."' failed.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D86534/new/

https://reviews.llvm.org/D86534