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Sorry, I meant to say, I added code to prevent llc from running machine verifier after delay slots are filled. MipsInstrInfo::AnalyzeBranch generates incorrect results after delay slots are filled. Also, it seems that code in MachineVerifier.cpp wasn't written with architectures that have delay slots in mind. On Wed, Apr 25, 2012 at 11:59 AM, Akira Hatanaka <ahatanak at gmail.com>

Hi Anton, I ran llc with -verify-coalescing. There were no error messages. Then I added code in MipsPassConfig::addPreEmitPass() to prevent machine verifier from running post delay -slot-filler, and ran llc again. Again, there were no error messages. This is the list of passes run after post-RA scheduling. machine verifier is run twice after post RA scheduler (and CriticalAntiDepBreaker) is run.