search for: addrequiredid

Hi, I notice that there are several different methods called inside getAnalysisUsage(). The parameters of addRequiredID and addPreservedID are passID. What is the difference between Required and Preserved? There are also function named addRequired<PassName>() called. What is the difference between addRequired<PassName>() and addRequiredID(PassID)? Thanks a lot! Best,...

...n pass (i.e., I don't want to use opt). I wrote a Module pass which already calls other analysis and transformation passes in its getAnalysisUsage method: void MyPass::getAnalysisUsage(AnalysisUsage& AU) const { AU.addRequired<LoopInfo>(); AU.addPreserved<LoopInfo>(); AU.addRequiredID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID); AU.addRequiredID(LCSSAID); AU.addPreservedID(LCSSAID); } However, I couldn't figure out how to call the LoopRotate and LoopUnroll passes since I cannot use addRequiredID or addRequired for these two transformations. In Scalar.h, I...

Hi, I'm writing a function pass which is dynamically loaded by opt and I need some analysis and passes to be run before my pass: virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<LoopInfo>(); AU.addPreserved<LoopInfo>(); AU.addRequiredID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID); AU.addRequiredID(LCSSAID); AU.addPreservedID(LCSSAID); AU.addRequired<ScalarEvolution>(); AU.addPreserved<ScalarEvolution>(); } When I run it with opt -load, I'm getting the following error:...

...ass (i.e., I don't want to use opt). I wrote a Module pass which already calls other analysis and transformation passes in its getAnalysisUsage method: void MyPass::getAnalysisUsage(AnalysisUsage& AU) const { AU.addRequired<LoopInfo>(); AU.addPreserved<LoopInfo>(); AU.addRequiredID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID); AU.addRequiredID(LCSSAID); AU.addPreservedID(LCSSAID); } However, I couldn't figure out how to call the LoopRotate and LoopUnroll passes since I cannot use addRequiredID or addRequired for these two transformations. how can I do i...

...mespace { struct MyPass : public FunctionPass { static char ID; // Pass identification, replacement for typeid MyPass() : FunctionPass(ID) { initializeMyPassPass(*PassRegistry::getPassRegistry()); } virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequiredID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID); } virtual bool runOnFunction(Function &F); }; } char MyPass::ID = 0; INITIALIZE_PASS_BEGIN(MyPass, "mypass", "mypass", false, false) INITIALIZE_PASS_DEPENDENCY(LoopSimplify) INITIALIZE_...

...opt). I wrote a Module > pass which already calls other analysis and transformation passes in > its getAnalysisUsage method: > > > void MyPass::getAnalysisUsage(AnalysisUsage& AU) const { > AU.addRequired<LoopInfo>(); > AU.addPreserved<LoopInfo>(); > AU.addRequiredID(LoopSimplifyID); > AU.addPreservedID(LoopSimplifyID); > AU.addRequiredID(LCSSAID); > AU.addPreservedID(LCSSAID); > } > > However, I couldn't figure out how to call the LoopRotate and > LoopUnroll passes since I cannot use addRequiredID or addRequired for > these...

Hi, I'm writing a ModulePass that needs critical edges split up. I have the statement AU.addRequiredID(BreakCriticalEdgesID); in my getAnalysisUsage() but the pass never gets executed. I guess I have to request pass execution for each function, but I can't get behind how to do that, since there is no analysis group for that kind of transformation. Thanks, Andi

...top of CVS, and now I am getting > > errors like this one below when I write new passes: > > What does your getAnalysisUsage method look like? > Chris, I think I've figured the problem out. I have a very basic question though. What is the difference between addRequired, and addRequiredID? For instance, in RegAllocLocal.cpp, you have both: AU.addRequired<LiveVariables>(); AU.addRequiredID(PHIEliminationID); When should I use one, and when the other should be used? Thanks a lot, Fernando

Dear guys, I need help fixing a little piece of code. I have a pass that I really want to execute after the TwoAddressinstructionPass. But if I write "AU.addRequiredID(TwoAddressInstructionPassID);" in my pass' getAnalysisUsage, I end up getting the infamous: PassManagerT.h:387: failed assertion `getAnalysisOrNullUp(P) && dynamic_cast<ImmutablePass*>(getAnalysisOrNullUp(P)) && "Pass available but not found! " "Pe...

.... > > More specifically, to refer to the pass name in AddRequired, I need > to declare it first but then I can't think of a way to load the > module implementing the pass dynamically instead of linking it > statically. I think if you define the pass ID in your host and use AddRequiredID instead of AddRequired: char LoadablePassID = 0; ... AU.addRequiredID(lookupPassInfo((intptr_t) &LoadablePassID)); then it should work if the loadable module references the same pass ID as an extern: extern char ExternalPassID; class ThePass : public ImmutablePa...

Is it possible to AddRequired<...> a pass that is dynamically loaded? This would be very convenient for a course project but the documentation about pass interactions says nothing about dynamically loaded passes and vice versa. More specifically, to refer to the pass name in AddRequired, I need to declare it first but then I can't think of a way to load the module

Hi, Andreas Neustifter wrote: > I'm writing a ModulePass that needs critical edges split up. I have the > statement > > AU.addRequiredID(BreakCriticalEdgesID); > > in my getAnalysisUsage() but the pass never gets executed. > > I guess I have to request pass execution for each function, but I can't > get behind how to do that, since there is no analysis group for that > kind of transformation. I now also adde...

Hi All, I tried to use CallGraph in llvm by adding "AU.addRequired<CallGraph>();" in getAnalysisUsage function. But it reports an error: include/llvm/PassAnalysisSupport.h:56:39: error: ‘ID’ is not a member of ‘llvm::CallGraph’ return addRequiredID(PassClass::ID); How to use it correctly? Thanks, Haopeng

...e before or after the register allocation phase. And I intend to implement the allocator registers using the resources of SSA representation, making this step (*PHI Elimination*) vital for development. Looking at the source code of allocators of LLVM, I see no explicit call of PHI Elimination (*AU.addRequiredID (PHIEliminationID)*), my question is whether if this step is called, occurs when and where such a call? -- Natanael Ramos Membro do corpo discente de Ciência da Computação pelo Instituto Federal de Minas Gerais - Campus Formiga -------------- next part -------------- An HTML attachment was scrubb...

...on't get it: If I use AU.addRequired<ProfileInfo>() in SelectionDAGISel.cpp the wrong ProfileInfo is used. It uses the "No ProfileInfo" implementation if ProfileInfo but not the one from ProfileInfoLoaderPass. (Which is immediately discarded after creation.) When I use AU.addRequiredID(ProfileLoaderPassID) I get assertions that a normal constructor is not available. Interesting enough its not the ProfileInfoLoader constructor thats misssing but the one from MachineFunctionAnalysis, which indeed has none. This raises the question why different passes are loaded (in a different...

...FunctionPass { > static char ID; // Pass identification, replacement for typeid > MyPass() : FunctionPass(ID) { > initializeMyPassPass(*PassRegistry::getPassRegistry()); > } > virtual void getAnalysisUsage(AnalysisUsage&AU) const { > AU.addRequiredID(LoopSimplifyID); > AU.addPreservedID(LoopSimplifyID); > } > virtual bool runOnFunction(Function&F); > }; > } Is LoopSimplifyID an analysis pass or a transform (optimization) pass? You cannot reliably use the addRequired() method to force a transform pas...

...addRequired< CallGraph >(); au.setPreservesAll(); } bool runOnModule(Module &m) { return false; } }; class After : public FunctionPass { public: static char ID; After() : FunctionPass(&ID) {} void getAnalysisUsage(AnalysisUsage &au) const { au.addRequiredID( LoopSimplifyID ); au.addRequired< Before >(); au.setPreservesAll(); } bool runOnFunction(Function &f) { return false; } }; char Before::ID = 0; char After::ID = 0; namespace { RegisterPass< Before > x("before", "before"); RegisterPass&l...

Hi, Devang Patel wrote: > On Tue, Nov 17, 2009 at 9:03 AM, Andreas Neustifter > <astifter-llvm at gmx.at> wrote: > >> Okay, so the ProfileInfoLoader is working, but when I examine the executions more closely I see that the ProfileInfo generated by the ProfileInfoLoader is immediately discarded, when the SelectionDAGISel kicks in the "No Profile Info"-Implementation

I'm trying to write a MachineFunctionPass to do register allocation. I have code that worked with an old version of LLVM. It does not work with llvm-3.1. (or various other versions that I've tried). The first problem is that including this line: AU.addRequiredID(TwoAddressInstructionPassID); in method getAnalysisUsage causes a runtime error: Unable to schedule 'Eliminate PHI nodes for register allocation' required by 'Unnamed pass: implement Pass::getPassName()' Unable to schedule pass UNREACHABLE executed at ... I'm invoking the pa...

...ops, and so I want to use MemoryDependenceAnalysis in LICM, but when I modify getAnalysisUsge to include this : virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.setPreservesCFG(); AU.addRequired<DominatorTree>(); AU.addRequired<LoopInfo>(); AU.addRequiredID(LoopSimplifyID); AU.addRequired<MemoryDependenceAnalysis>(); // <--- added AU.addRequired<AliasAnalysis>(); AU.addPreserved<AliasAnalysis>(); AU.addPreserved("scalar-evolution"); AU.addPreservedID(LoopSimplifyID); AU.addRequired&lt...