[llvm-dev] Debug assertion when moving from LLVM 7 to LLVM 8.

[David Jones via llvm-dev]

I have an application which works without asserting when using LLVM 7.

After upgrading to LLVM 8, whenever I try to generate debug records, I get
the following assertion:

/home/dej/work/llvm_git/llvm-project/llvm/lib/IR/Metadata.cpp:634: void
llvm::MDNode::resolveCycles(): Assertion `!N->isTemporary() && "Expected
all forward declarations to be resolved"' failed.

Interestingly, this assert exists in LLVM 7, but my application does not
trigger it.  I can only conclude that requirements have changed - some new
requirement has been added to achieve "resolution".

Does anyone know what the new requirements could be?  Alternatively, how
would I debug this?
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