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...ses in the correct > order (e.g., opt -load<your pass filename> -mergereturn -<your pass > name>). If you're building a separate program that schedules the > passes, then it needs to run the prerequisite passes first. What?? Sure it does. See all the passes which require BreakCritEdges or LCSSA for examples. > > See the sc tool in the SAFECode source code for an example. > > 2) For prerequisite *analysis* passes (like LoopInfo), your ModulePass > can declare them as prerequisites and get access to them using the > getAnalysis<PassName>(Function *) meth...

Trevor Harmon wrote: > On Jul 22, 2010, at 2:05 PM, John Criswell wrote: > > >> If you write your pass as a ModulePass, then you can iterate over the >> functions in any order that you want. >> > > I had considered that, but my FunctionPass depends on other passes > processing the functions first: > Two things to consider: 1) The PassManager

On Jul 22, 2010, at 2:05 PM, John Criswell wrote: > If you write your pass as a ModulePass, then you can iterate over the > functions in any order that you want. I had considered that, but my FunctionPass depends on other passes processing the functions first: void MyPass::getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<UnifyFunctionExitNodes>();