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...crash when running lower->runOnFunction(*f) in llvm-9. I was using this method in llvm-8 and it worked fine. It seems the crash happens at the first line of the LowerSwitch::runOnFunction(Function &F) in the newer llvm: LazyValueInfo *LVI = &getAnalysis<LazyValueInfoWrapperPass>().getLVI(); //crashed here I can't figure out why this usage cause the compiler to crash? Am I calling function pass wrong? Thank you for your help. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20191226/a76208e...

...;runOnFunction(*f) in llvm-9. >> I was using this method in llvm-8 and it worked fine. It seems the crash happens at the first line of the LowerSwitch::runOnFunction(Function &F) in the newer llvm: >> >> LazyValueInfo *LVI = &getAnalysis<LazyValueInfoWrapperPass>().getLVI(); //crashed here >> >> I can't figure out why this usage cause the compiler to crash? Am I calling function pass wrong? >> >> Thank you for your help. > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.o...

On Mon, Aug 7, 2017 at 2:14 AM, Anastasiya Ruzhanskaya via llvm-dev <llvm-dev at lists.llvm.org> wrote: > I am trying to print it like this (maybe here is smth wrong?) > > > LazyValueInfo &LV = getAnalysis<LazyValueInfoWrapperPass>().getLVI(); > DominatorTree &DT = > getAnalysis<DominatorTreeWrapperPass>().getDomTree(); > LV.printLVI(F, DT, llvm::outs()); The value analysis in llvm is lazy (hence, LVI), so you're trying to print an empty cache, I guess. > for (BasicBlock &BB : F) { >...

...t 2:14 AM, Anastasiya Ruzhanskaya via llvm-dev >> <llvm-dev at lists.llvm.org> wrote: >> > I am trying to print it like this (maybe here is smth wrong?) >> > >> > >> > LazyValueInfo &LV = getAnalysis<LazyValueInfoWrapp >> erPass>().getLVI(); >> > DominatorTree &DT = >> > getAnalysis<DominatorTreeWrapperPass>().getDomTree(); >> > LV.printLVI(F, DT, llvm::outs()); >> >> The value analysis in llvm is lazy (hence, LVI), so you're trying to >> print an empty cache, I gues...

Hello, I am trying to figure out, what vrp propagation does in llvm. I tried this program: #include <stdio.h> int main() { int s = 0; int j = 0; for (int i = 0; i < 100; i++) { j = j+i+1; s+=j; } return (s+j); } And got this under optimized version ( I don't want everything to be eliminated) define i32 @main()