[LLVMdev] Unable to schedule 'Dominator Tree Construction' required by 'Module Verifier' (original) (raw)

mondi at dyskinetic.com mondi at dyskinetic.com
Fri Jul 27 06:44:49 PDT 2012

Thanks, that was exactly the problem.

.m

Hi Mondi, maybe: don't link your dynamic library against the LLVM libraries. If the tool you load it into is already linked against them (like the opt tool is) then global constructors will be run twice (once when your tool is started and once when the dynamic library is loaded) and strange things will happen.

Ciao, Duncan.

On 26/07/12 22:27, mondi wrote: I have a simple parser / JIT execution module which I recently split up into separate shared libraries.

Previously, and as a test case, I'd generate IR, and immediately reparse / execute it. Now, the execution step lives in a separate but linked shared library. As soon as this happened, this error start popping up: Unable to schedule 'Dominator Tree Construction' required by 'Module Verifier' Unable to schedule pass UNREACHABLE executed at PassManager.cpp:1230! I've reduced it to the bare minimum test case - parser + linked execution, and it fails as long as the execution code is run from a dylib. This is with the latest SVN code, on OS X 10.8 Anyone else seen this behaviour? Hopefully I'm missing something obvious .m

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