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ambika wrote: > Here is getAnalysisUsage() i am using, > > void getAnalysisUsage(AnalysisUsage &AU) const { > AU.setPreservesAll(); > AU.addRequired<DominatorTree>(); > } > > and then I use it as, > > > bool ptrTest::runOnModule(Module &M) { > > DominatorTree &DT = getAnalysis<DominatorTree>(); > ...... > > } > Weird. There is nothing unusual about your getAnalysisUsage() method at all. I assume ptrTest is either a ModulePass or FunctionPass, correct? A few other que...

...;> Here is getAnalysisUsage() i am using, >> >> void getAnalysisUsage(AnalysisUsage&AU) const { >> AU.setPreservesAll(); >> AU.addRequired<DominatorTree>(); >> } >> >> and then I use it as, >> >> >> bool ptrTest::runOnModule(Module&M) { >> >> DominatorTree&DT = getAnalysis<DominatorTree>(); DominatorTree is per-function. In a ModulePass you need to pass a Function in order for it to know which function you want the DominatorTree for. Nick >> ...... >> >&g...

Here is getAnalysisUsage() i am using, void getAnalysisUsage(AnalysisUsage &AU) const { AU.setPreservesAll(); AU.addRequired<DominatorTree>(); } and then I use it as, bool ptrTest::runOnModule(Module &M) { DominatorTree &DT = getAnalysis<DominatorTree>(); ...... } John Criswell wrote: > ambika wrote: >> But this is already present in my pass. >> And I am not able to understand the cause for the error: >> > > Can you send a c...

ambika wrote: > But this is already present in my pass. > And I am not able to understand the cause for the error: > Can you send a copy of your getAnalysisUsage() method for your pass? There are some funny errors that can occur when you do things that the PassManager cannot handle. For example, if you're requiring a transform pass, that can cause strange assertions from the