[PATCH] D64656: Ensure placeholder instruction for cleanup is created

[Roman Lebedev via Phabricator via cfe-commits]

lebedev.ri added a comment.

Hm, i have a question about this fix.
As it can be seen the C++17 code is successfully codegened by clang to LLVM IR, and the actual failure is in LLVM middle-end optimization pass:
https://godbolt.org/z/P3RB23

1. Please file a bug about that pass crash, include that link. It most definitively should not crash.
2. Is this fix just workarounding that crash, or is the clang producing incorrect IR without this fix, miscompiling it?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D64656/new/

https://reviews.llvm.org/D64656