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FWIW, I was able to use the EarlyCSE debug counters without issue in a Release build with -DLLVM_ENABLE_ASSERTIONS=Yes. Further, the only preprocessor checks I see around debug counters use `NDEBUG`. Am I missing something? It seems reasonable to me to require that assertions are on when you're trying to debug the compiler. Not so much to require that the compiler itself has been built with