search for: lcssaverifi

...LPPassManager since it’s created lazily via LoopPass::assignPassManager. So we are risking to miss adding verifiers in some of the LPPassManager’s. > That’s true, I didn’t particularly like that either, but suggested as a potential workaround. >> >> One similar idea is to introduce LCSSAVerifier function pass and make LCSSA pass to be dependant on it. That will allow me to check ‘getAnalysisIfAvaliable<LCSSAVerifier>’ inside of the LPPassManager and explicitly call LCSSA verification when it’s present. This feels a quite hacky, but in theory should work. > We’ll always have to...

...+CC llvm-dev My guess is that it would be rather error prone to pinpoint exact places where we start populating new LPPassManager since it’s created lazily via LoopPass::assignPassManager. So we are risking to miss adding verifiers in some of the LPPassManager’s. One similar idea is to introduce LCSSAVerifier function pass and make LCSSA pass to be dependant on it. That will allow me to check ‘getAnalysisIfAvaliable<LCSSAVerifier>’ inside of the LPPassManager and explicitly call LCSSA verification when it’s present. This feels a quite hacky, but in theory should work. — Igor On 14 Oct 2016, a...

...On Oct 14, 2016, at 9:54 AM, Igor Laevsky <igor at azulsystems.com<mailto:igor at azulsystems.com>> wrote: Hi Michael, Hi Igor, Hi Michael, Hi Michael, What I was referring to is that we can write something like this inside LPPassManager iteration: if (getAnalaysisIfAvaliable<LCSSAVerifier>()) { CurrentLoop->verifyLCSSA(); ) This will have less impact but feels a bit wrong. Originally I didn’t like this idea, but the more I think about it the more I like it. Currently all loop passes use (or should use) getLoopAnalysisUsage to record their pass requirements, so all of them sh...