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...sense to mark the ProfileInfo passes as "CFGOnly?" If so, that would let them be automatically preserved by passes which don't modify the CFG (and that call AU.setPreservesCFG()). > + if (ProfileInfo* PI = getAnalysisIfAvailable<ProfileInfo>()) { > + PI->splitEdge(OrigPreHeader, NewHeader, NewPreHeader); > + } > + > // Preserve canonical loop form, which means Exit block should > // have only one predecessor. > SplitEdge(L->getLoopLatch(), Exit, this); Would it make sense to move the ProfileInfo updating code into SplitEdge? That way all use...

Hi all, this (altough a big patch) is actually pretty straight forward: It (tries) to preserve ProfileInfo in all -std-compile-opts passes and all X86-Backend passes. There is still some passes that have corner cases where the ProfileInfo is not correct after the pass. Some passes are still missing... How shall I proceed with this? Andi -------------- next part -------------- A non-text

...; > If so, that would let them be automatically preserved by passes > which don't modify the CFG (and that call AU.setPreservesCFG()). Yes, it would, how do I do this? :-) >> + if (ProfileInfo* PI = getAnalysisIfAvailable<ProfileInfo>()) { >> + PI->splitEdge(OrigPreHeader, NewHeader, NewPreHeader); >> + } >> + >> // Preserve canonical loop form, which means Exit block should >> // have only one predecessor. >> SplitEdge(L->getLoopLatch(), Exit, this); > > Would it make sense to move the ProfileInfo updatin...