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Hi, How can I get the llvm-type of the formal argument while lowering it ? My target needs to map pointer and non-pointer parameters to different registers. In addition, parameter lowering is address space dependent (another reason why I need such information). Looking at the DAGBuilder, I found that it is dropping it when translating llvm-types to BE types. Even if the base type is saved

If you need llvm::Argument, this returns the iterator pointing to the first argument: Function::const_arg_iterator Arg = DAG.getMachineFunction().getFunction()->arg_begin(); On Wed, Mar 14, 2012 at 8:16 AM, Ivan Llopard <ivanllopard at gmail.com> wrote: > Hi, > > How can I get the llvm-type of the formal argument while lowering it ? > > My target needs to map pointer and non-pointer par...

...entioned the isSplit flag doesn't help here. There are 2 ways to analyze the arguments of a function: 1) You can get a Function pointer in LowerFormalArguments, and in LowerCall only when Callee can by dyn_casted to a GlobalAddressSDNode. By having this pointer you can then do: for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();I != E; ++I) { unsigned Bytes = TD->getTypeSizeInBits(I->getType()) / 8; // do stuff here } 2) The second case is when the dyn_cast above fails because the Callee SDValue is a ExternalSymbolSDNode. In this case you have to manually an...

...ippet: f("hello") , then compiled by Clang, I will have the “hello” as a *Constant Array* in the IR code. My goal is to call APIs of LLVM to get the “hello” from IR code. Now suppose the I got the llvm::Function* fn from some Module, so I can get the access the ArgumentList by iterator const_arg_iterator it. However, the iterator now I got is of type llvm::ilist_iterator<const llvm::Argument>::const_iterator. When I am trying to cast it into `llvm::ilist_iterator<const llvm::ConstantArray>::const_iterator, it can’t success. But if I get the raw pointer out of it, the program will simpl...

Le 15/03/2012 03:07, Akira Hatanaka a écrit : > If you need llvm::Argument, this returns the iterator pointing to the > first argument: > > Function::const_arg_iterator Arg = > DAG.getMachineFunction().getFunction()->arg_begin(); Thanks Akira. Ivan > > On Wed, Mar 14, 2012 at 8:16 AM, Ivan Llopard<ivanllopard at gmail.com> wrote: >> Hi, >> >> How can I get the llvm-type of the formal argument while lowering it ? >> >...

...ValueToValueMapTy& ValueMap) { vector<const Type*> ArgTypes; // The user might be deleting arguments to the function by specifying them in // the ValueMap. If so, we need to not add the arguments to the arg ty vector // for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E; ++I) if (ValueMap.count(I) == 0) // Haven't mapped the argument to anything yet? ArgTypes.push_back(I->getType()); // Create a new function type... FunctionType *FTy = FunctionType::get(F->getFunctionTyp...

...t>(use.getUser())) { const Function* f = c->getCalledFunction(); if (f != nullptr) { for (unsigned i = 0; i < c->getNumArgOperands(); ++i) { const Use& u = c->getArgOperandUse(i); if (u.operator->() == &I) { Function::const_arg_iterator ai = f->arg_begin(); std::advance(ai, i); for (const auto& use : ai->uses()) { errs() << "next one\n"; if (const Instruction* user = dyn_cast<Instruction>(use.getUser())) { errs() << "op_code2: &qu...

...ent: den 15 mars 2012 10:02 To: Akira Hatanaka Cc: LLVM Developers Mailing List Subject: Re: [LLVMdev] Lowering formal pointer arguments Le 15/03/2012 03:07, Akira Hatanaka a écrit : > If you need llvm::Argument, this returns the iterator pointing to the > first argument: > > Function::const_arg_iterator Arg = > DAG.getMachineFunction().getFunction()->arg_begin(); Thanks Akira. Ivan > > On Wed, Mar 14, 2012 at 8:16 AM, Ivan Llopard<ivanllopard at gmail.com> wrote: >> Hi, >> >> How can I get the llvm-type of the formal argument while lowering it ? >> >...

...::string originalFileName = "tracer.ll"; const std::string referenceFileName = "tracer_ref.ll"; void populateVMap(llvm::ValueToValueMapTy &VMap, llvm::Function *fOld, llvm::Function *fNew) { llvm::Function::arg_iterator DestI = fOld->arg_begin(); for (llvm::Function::const_arg_iterator J = fNew->arg_begin(); J != fNew->arg_end(); ++J) { DestI->setName(J->getName()); VMap[&*J] = &*DestI++; } void addFunction(llvm::Module *oMod, llvm::Module *nMod, std::string nFName, std::string oFName) { llvm::Function *fNew = nMod->getFunction(nFName);...

...code that I saw necessary, but I still have some issues (references are still not updated). I created the function: void populateVMap(llvm::ValueToValueMapTy &VMap, llvm::Function *fOld, llvm::Function *fNew) { llvm::Function::arg_iterator DestI = fOld->arg_begin(); for (llvm::Function::const_arg_iterator J = fNew->arg_begin(); J != fNew->arg_end(); ++J) { DestI->setName(J->getName()); VMap[&*J] = &*DestI++; } } The same as in *CloneModule*, then I have this code: llvm::Function *fNew = nMod->getFunction(nFName); llvm::Function *fOld = oMod->getFunction(o...

...const Use& u = c->getArgOperandUse(i); > > if (u.operator->() == &I) { > > Function::const_arg_iterator ai = f->arg_begin(); > > std::advance(ai, i); > > for (const auto& use : ai->uses()) { > >...

Hi Philip, Thank you very much for your answer, the vector declaration example worked. I'm pretty sure the ValueToValueMapTy is the last thing I need because I even saw there is another function that could help me llvm*:*:RemapFunction <http://llvm.org/doxygen/namespacellvm.html#addf0183e92893bdbcde00fc9091dda93>; but my problem is that I don't know how to populate the

...Function *OF = *I; + Function *NF = cast<Function>(VMap[OF]); + + // Steal some code from llvm::CloneFunction. + { + // Loop over the arguments, copying the names of the mapped arguments over... + Function::arg_iterator DestI = NF->arg_begin(); + for (Function::const_arg_iterator I = OF->arg_begin(), E = OF->arg_end(); + I != E; ++I) + // Is this argument preserved? WTF, how come an argument is preserved? + if (VMap.count(I) == 0) { + DestI->setName(I->getName()); // Copy the name over... + VMap[I] = DestI++; // Add mapp...