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Hi, I am trying to use the CloneFunction from llvm/Transforms/Utils/Cloning.h and I don't understand how the ValueToValueMapTy argument should be initialized. For instance, let say I want to clone this function (to add an argument): define void @function(i32 %i) #0 { entry: %i.addr = alloca i32, align 4 store i32 %i, i32* %i.addr, align 4 ret void } to another function which should, after the CloneFunction, be like...

...Amini <mehdi.amini at apple.com> wrote: > > On Jul 14, 2016, at 7:58 AM, Pierre Gagelin via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > > Hi, > > I am trying to use the CloneFunction from llvm/Transforms/Utils/Cloning.h > and I don't understand how the ValueToValueMapTy argument should be > initialized. For instance, let say I want to clone this function (to add an > argument): > > define void @function(i32 %i) #0 { > entry: > %i.addr = alloca i32, align 4 > store i32 %i, i32* %i.addr, align 4 > ret void > } > > to another fu...

...t;llvm/Transforms/Utils/Cloning.h" #include "llvm/Transforms/Utils/ValueMapper.h" #include <iostream> #include <string.h> const std::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++;...

Hi Philip, Thanks for the reference, I was able to follow it and copy the 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++;...

..... ... } I want to insert int the LLVM IR a call instructions to a function “bar” that requires the same parameters of foo. So my function foo will become: int foo(int a, int b) { bar(a,b); … ... } I am using the following code: bool ThreadSanitizer::runOnFunction(Function &F) { ValueToValueMapTy VMap; Function *new_function = CloneFunction(&F, VMap, false); new_function->setName(functionName + “_newfunction");...

...n is a definition (so I could remove or rename the value)? Is there a VMap book for newbies? Is there some documentations I forgot to look at? Thank you. virtual BasicBlock* createAlteredBasicBlock(BasicBlock * basicBlock, const Twine & Name = "", Function * F = 0){ ValueToValueMapTy VMap; BasicBlock * alteredBB = llvm::CloneBasicBlock (basicBlock, VMap, Name, F); return alteredBB; } -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120621/169acc2e/attachment.html&g...

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 ValueToValueMapTy (VMap) and I couldn'...

...5b3 main + 7251 13 libc.so.6 0x00007f039618076d __libc_start_main + 237 14 opt 0x0000000000521f91 Stack dump: 0. Program arguments: opt -load ../../../Release+Asserts/lib/Blocks.so -blocks Aborted (core dumped) ***The code is > std::vector<Type*> ArgTypes; > ValueToValueMapTy VMap; >FunctionType *FTy = FunctionType::get(F.getFunctionType()->getReturnType(), ArgTypes, F.getFunctionType()->isVarArg()); >Function *NewF = Function::Create(FTy, F.getLinkage(), F.getName()); > SmallVector<ReturnInst*, 8> Returns; >Clone...

...precisely a constructor of a struct/class) and adds a parameter. First, we create a new function with a new function type, which includes the newly added parameter: Function *NF = Function::Create(NewFTy, F.getLinkage(), F.getName() + "Cloned", F.getParent()); and after setting up the ValueToValueMapTy, we use the CloneFunctionInto method to clone the function body CloneFunctionInto(NF, &F, Map, true, Returns, "Cloned"); The code seems to work as intended, but when we try to emit debug symbols (clang -g flag) the pass fails with following message: "All DICompileUnits must b...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, unless I overlook something, the second version of CloneFunction() (from http://llvm.org/doxygen/Cloning_8h_source.html): 00114 Function *CloneFunction(const Function *F, 00115 ValueToValueMapTy &VMap, 00116 bool ModuleLevelChanges, 00117 ClonedCodeInfo *CodeInfo = 0); 00118 00119 /// CloneFunction - Version of the function that doesn't need the VMap. 00120 /// 00121 inline Function *CloneFunction(const Function *F, ClonedCodeInfo *Co...

...Old, FunctionType *NewTy) const { Function *New = Function::Create(NewTy, Old.getLinkage(), "", &M); New->setAttributes(Old.getAttributes()); New->setCallingConv(Old.getCallingConv()); // Map old arguments to the new arguments. ValueToValueMapTy VMap; for (auto OldFI = Old.arg_begin(), OldFE = Old.arg_end(), NewFI = New->arg_begin(); OldFI != OldFE; ++OldFI, ++NewFI) { Argument &OldA = *OldFI; Argument &NewA = *NewFI; NewA.setName(OldA.getName()); VMap[&OldA] = &NewA; } SmallVect...

...make ScalarEvolution re-calculate the SCEV values for the unknown SCEVs, or, is there a way to re-run ScalarEvolution and LoopInfo analysis pass during my pass? This is my current CloneLoop function: Loop *cloneLoop(Function *F, Loop *L, LoopInfo *LI, const Twine &NameSuffix, ValueToValueMapTy &VMap) { // original preheader of the loop const auto PreHeader = L->getLoopPreheader(); // keep track of the original predecessors std::set<BasicBlock *> AllPredecessors; for (auto PredIt = pred_begin(PreHeader), E = pred_end(PreHeader); PredIt !...

...rt_main + 237 > 14 opt 0x0000000000521f91 > Stack dump: > 0. Program arguments: opt -load ../../../Release+Asserts/lib/Blocks.so > -blocks > Aborted (core dumped) > > > > ***The code is > > > > std::vector<Type*> ArgTypes; > > > ValueToValueMapTy VMap; > > >FunctionType *FTy = > FunctionType::get(F.getFunctionType()->getReturnType(), > ArgTypes, F.getFunctionType()->isVarArg()); > > >Function *NewF = Function::Create(FTy, F.getLinkage(), F.getName()); > > > SmallVector<Ret...

...d lock around the entire copy procedure? In case you are interested, here is the algorithm I'm using to copy a Module to a same (or different) LLVMContext: if (&context == &other.myContext) { // If the context is shared, we can use cloning ValueToValueMapTy map; myModule = CloneModule(other.myModule, map); } else { // Otherwise, round trip the module to a stream and then back // into the new context. This approach allows for duplication // and optimization to proceed in...

...nType *NewTy) const { >> Function *New = Function::Create(NewTy, Old.getLinkage(), "", &M); >> New->setAttributes(Old.getAttributes()); >> New->setCallingConv(Old.getCallingConv()); >> >> // Map old arguments to the new arguments. >> ValueToValueMapTy VMap; >> for (auto OldFI = Old.arg_begin(), OldFE = Old.arg_end(), >> NewFI = New->arg_begin(); >> OldFI != OldFE; ++OldFI, ++NewFI) { >> Argument &OldA = *OldFI; >> Argument &NewA = *NewFI; >> NewA.setName(OldA.getName...

...;llvm/DerivedTypes.h" #include "llvm/LLVMContext.h" #include "llvm/ADT/DenseMap.h" #include "llvm/Transforms/Utils/Cloning.h" using namespace std; using namespace llvm; static Function *cloneFunctionInfo(const Function *F, 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-&gt...

...) and adds a parameter. > > First, we create a new function with a new function type, which includes > the newly added parameter: > > Function *NF = Function::Create(NewFTy, F.getLinkage(), F.getName() + > "Cloned", F.getParent()); > > > and after setting up the ValueToValueMapTy, we use the CloneFunctionInto > method to clone the function body > > CloneFunctionInto(NF, &F, Map, true, Returns, "Cloned"); > > > The code seems to work as intended, but when we try to emit debug symbols > (clang -g flag) the pass fails with following message:...

...gt; > >> > >> > Thank you. >> > >> > >> > >> > virtual BasicBlock* createAlteredBasicBlock(BasicBlock * basicBlock, >> > const >> > Twine &  Name = "", Function * F = 0){ >> > >> >             ValueToValueMapTy VMap; >> >             BasicBlock * alteredBB = llvm::CloneBasicBlock (basicBlock, >> > VMap, Name, F); >> > >> >             return alteredBB; >> > } >> > >> > >> > _______________________________________________ >> >...

...>> First, we create a new function with a new function type, which includes the newly added parameter: >>> >>>> Function *NF = Function::Create(NewFTy, F.getLinkage(), F.getName() + "Cloned", F.getParent()); >>> >>> and after setting up the ValueToValueMapTy, we use the CloneFunctionInto method to clone the function body >>> >>>> CloneFunctionInto(NF, &F, Map, true, Returns, "Cloned"); >>> >>> The code seems to work as intended, but when we try to emit debug symbols (clang -g flag) the pass fails...

...d parameter: >>>>>>> >>>>>>>> Function *NF = Function::Create(NewFTy, F.getLinkage(), >>>>>>>> F.getName() + "Cloned", F.getParent()); >>>>>>> >>>>>>> and after setting up the ValueToValueMapTy, we use the >>>>>>> CloneFunctionInto method to clone the function body >>>>>>> >>>>>>>> CloneFunctionInto(NF, &F, Map, true, Returns, "Cloned"); >>>>>>> >>>>>>> The code see...