search for: getnullvalu

...rtion failure. Any pointers to where I am wrong : Code Dump : Function *printFn=M.getNamedFunction(std::string("printf")); Constant *str=ConstantArray::get("Value : %d\n"); std::vector<Value *> Args(2); std::vector<Constant *> GEPIndices(2); GEPIndices[0]=Constant::getNullValue(Type::LongTy); GEPIndices[1]=Constant::getNullValue(Type::LongTy); Args[0]=ConstantExpr::getGetElementPtr(strcon,GEPIndices); Args[1]=ConstantInt::get(Type::IntTy, id); Instruction * cI= new CallInst(printFn, Args, "retprintf",instr); Thanks

...kind of C-style idiom. What are the declarations in > LLVM IR? const Type *IntTy = Type::getInt32Ty(M.getContext()); const Type *ATyC = ArrayType::get(Type::getInt64Ty(M.getContext()), 1); GlobalVariable *CounterSize = new GlobalVariable(M, ATyC, false, GlobalValue::InternalLinkage, Constant::getNullValue(ATyC), "MemTraceCounterSize"); const Type *ATy = ArrayType::get(Type::getInt32Ty(M.getContext()), 3000); GlobalVariable *Counters = new GlobalVariable(M, ATy, false, GlobalValue::InternalLinkage, Constant::getNullValue(ATy), "MemTraceCounters"); >> //increase the counte...

Eli Friedman-2 wrote: > > > Try llvm::Constant::getNullValue(). > > I'm trying this: llvm::Constant* one = llvm::Constant::getNullValue(llvm::IntegerType::get(mod->getContext(), 64)); llvm::ConstantInt* two = llvm::ConstantInt::get(mod->getContext(), llvm::APInt(32, llvm::StringRef("1"), 10)); std::vector<llvm::Value*> i...

...p seeing the following: > > %Size = getelementptr %T* null, int 1 > %SizeI = cast %T* %Size to uint > > But I'm unsure how I actually do this in the C++ API. Is the 'null' here a > llvm::ConstantPointerNull? Any help here would be much appreciated. Try llvm::Constant::getNullValue(). > Additionally, I was wondering whether I can use this method to find out the > size of variable-length arrays, such as [0 x i32], for example? I've tried > doing this and am obviously doing something wrong. > > %Size = getelementptr [0 x i32]* %1, i32* null, i32 1 > %Siz...

...ray in my instrumentation code. For example: GlobalVariable: int *counter; //counter the number of load/store operations in run-time int *counterArray; //record the load/store addresses //increase the counter if a load/store is performed std::vector<Constant *>index(2); index[0] = Constant::getNullvalue(Type:getInt32Ty(Context)); index[1] = Constant::get(Type::getInt32Ty(Context), 0); Constant *ElementPtr = ConstantExpr::getGetElementPtr(counter, &index[0], index.size()); Value *oldcounter = new LoadInst(ElementPtr, "oldcounter", InsertPos); Value *newcounter = BinaryOperator::Creat...

...the declarations in >> LLVM IR? > const Type *IntTy = Type::getInt32Ty(M.getContext()); > const Type *ATyC = ArrayType::get(Type::getInt64Ty(M.getContext()), 1); > > GlobalVariable *CounterSize = new GlobalVariable(M, ATyC, false, > GlobalValue::InternalLinkage, > Constant::getNullValue(ATyC), "MemTraceCounterSize"); so CounterSize is an array of length 1, containing a single 64 bit integer. Using an array seems rather pointless here. > > const Type *ATy = ArrayType::get(Type::getInt32Ty(M.getContext()), 3000); > GlobalVariable *Counters = new GlobalVariable(...

...re addresses strictly speaking these are not arrays, they are pointers. Also, you have written them in some kind of C-style idiom. What are the declarations in LLVM IR? > //increase the counter if a load/store is performed > std::vector<Constant *>index(2); > index[0] = Constant::getNullvalue(Type:getInt32Ty(Context)); > index[1] = Constant::get(Type::getInt32Ty(Context), 0); The above two lines both compute the same thing (an i32 constant equal to zero) in two different ways. > Constant *ElementPtr = ConstantExpr::getGetElementPtr(counter, > &index[0], index.size()); &g...

I'm trying to work out the size of a struct so that I can pass this to the 'llvm.memcpy' intrinsic. It's easy to find out how I'm supposed to do this, as I keep seeing the following: %Size = getelementptr %T* null, int 1 %SizeI = cast %T* %Size to uint But I'm unsure how I actually do this in the C++ API. Is the 'null' here a llvm::ConstantPointerNull? Any help

...= ConstantInt::get(zero); > APInt minusone(32,-1); Constant* minusonec = ConstantInt::get(minusone); Create the global array, there is no initializer yet. > GlobalVariable *Counters = > new GlobalVariable(ATy, false, GlobalValue::InternalLinkage, > Constant::getNullValue(ATy), "OptimalEdgeProfCounters", &M); Then exactly "NumEdges" constants are pushed to the "Initializer": > Initializer[i] = zeroc; > .. > Initializer[i] = minusonec; > .. And then I set the initializer for the array: > Constant *init = llvm...

...variable const Type *IntTy = Type::getInt32Ty(M.getContext()); const Type *ATyC = ArrayType::get(Type::getInt64Ty(M.getContext()), 1); GlobalVariable *CounterSize = new GlobalVariable(M, ATyC, false, GlobalValue::InternalLinkage, Constant::getNullValue(ATyC), "MemTraceCounterSize"); const Type *ATy = ArrayType::get(Type::getInt32Ty(M.getContext()), 3000); GlobalVariable *Counters = new GlobalVariable(M, ATy, false, GlobalValue::InternalLinkage, Constant::getNullValue(ATy), "MemTraceCounters"); //get the in...

...tFn=M.getNamedFunction(std::string("printf")); std::string() is unnecessary here as it's implicit. > Constant *str=ConstantArray::get("Value : %d\n"); > std::vector<Value *> Args(2); > std::vector<Constant *> GEPIndices(2); > GEPIndices[0]=Constant::getNullValue(Type::LongTy); > GEPIndices[1]=Constant::getNullValue(Type::LongTy); > Args[0]=ConstantExpr::getGetElementPtr(strcon,GEPIndices); You are using 'strcon', but you defined 'str' above. Where is 'strcon' coming from? > Args[1]=ConstantInt::get(Type::IntTy, id); &gt...

...werInvoke.cpp > =================================================================== > RCS file: /var/cvs/llvm/llvm/lib/Transforms/Scalar/LowerInvoke.cpp,v > retrieving revision 1.23 > diff -r1.23 LowerInvoke.cpp > 160c160 > < std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy)); > --- >> std::vector<Constant*> GEPIdx(2, > Constant::getNullValue(XXX::IntPtrTy)); > 173c173 > < std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy)); > --- >> std::vector<Constant*> GEPIdx(2, > Con...

...================================ >>> RCS file: /var/cvs/llvm/llvm/lib/Transforms/Scalar/LowerInvoke.cpp,v >>> retrieving revision 1.23 >>> diff -r1.23 LowerInvoke.cpp >>> 160c160 >>> < std::vector<Constant*> GEPIdx(2, >>> Constant::getNullValue(Type::LongTy)); >>> --- >>> >>>> std::vector<Constant*> GEPIdx(2, >>> >>> Constant::getNullValue(XXX::IntPtrTy)); >>> 173c173 >>> < std::vector<Constant*> GEPIdx(2, >>> Constant::getNullValue(Type...

...;> RCS file: /var/cvs/llvm/llvm/lib/Transforms/Scalar/LowerInvoke.cpp,v >>>>> retrieving revision 1.23 >>>>> diff -r1.23 LowerInvoke.cpp >>>>> 160c160 >>>>> < std::vector<Constant*> GEPIdx(2, >>>>> Constant::getNullValue(Type::LongTy)); >>>>> --- >>>>> >>>>>> std::vector<Constant*> GEPIdx(2, >>>>> >>>>> >>>>> Constant::getNullValue(XXX::IntPtrTy)); >>>>> 173c173 >>>>> < st...

...t*> Initializer; Initializer.reserve(NumEdges); APInt zero(32,0); Constant* zeroc = ConstantInt::get(zero); APInt minusone(32,-1); Constant* minusonec = ConstantInt::get(minusone); GlobalVariable *Counters = new GlobalVariable(ATy, false, GlobalValue::InternalLinkage, Constant::getNullValue(ATy), "OptimalEdgeProfCounters1", &M); Initializer[0] = zeroc; Initializer[1] = minusonec; Initializer[2] = minusonec; Initializer[3] = zeroc; Constant *init = llvm::ConstantArray::get(ATy, Initializer); Counters->setInitializer(init); DOUT << "Ini...

...g("printf")); > > std::string() is unnecessary here as it's implicit. > > > Constant *str=ConstantArray::get("Value : %d\n"); > > std::vector<Value *> Args(2); > > std::vector<Constant *> GEPIndices(2); > > GEPIndices[0]=Constant::getNullValue(Type::LongTy); > > GEPIndices[1]=Constant::getNullValue(Type::LongTy); > > Args[0]=ConstantExpr::getGetElementPtr(strcon,GEPIndices); > > You are using 'strcon', but you defined 'str' above. Where is 'strcon' > coming from? > > > Args[1]=Const...

...eturn its value from a newly created function, in JIT context. I'm keeping all types as i32 for the moment, and I only have the one module object. This is the code I have for creating the global variable: const Type *type = Type::getInt32Ty(getGlobalContext()); // Constant *zerov = Constant::getNullValue(type); Constant *zerov = Constant::getIntegerValue(type, APInt(32, 0)); V = new GlobalVariable(getGlobalContext(), type, 0, GlobalValue::PrivateLinkage, zerov, name); And these are the error messages given by verifyFunction: Function return type does not match operand type of return inst! re...

...ll::get(cast<PointerType>(Ty)), > *I, IP); > } else { > // todo; something here > } > MadeChange = true; > } > ... Hi Scott, Using the new support for first-class aggregate values, you should be able to rewrite the above code to use Constant::getNullValue regardless of the type of the alloca. There needn't be a special-case for !isa<PointerType>((*I)->getType()->getElementType()). However, I hesitate to recommend this route; I think it boxes in from supporting escape analysis (where pointer fields within a stack- allocated s...

Hi I'm getting an assert in LowerIntrinsics::InsertRootInitializers because I'm gcroot'ing an alloca to a non-pointer. I was hoping to modify InsertRootInitializers to memset the structure in the case that it's not a pointer, but I'm not sure how to. Can anyone suggest what should go at "todo; something here"? ... for (AllocaInst **I = Roots, **E = Roots +

...ast (para, arg_iti->getType(), "test", InsertPt) ... where InsertPt is an Instruction * specifying where to insert the cast instruction. Having said that, if all you're doing is inserting zero values of the appropriate type, it might be easier to use: Value * Val2 = Constant::getNullValue (arg_iti->getType()); -- John T. > > > 2011/10/6 John Criswell <criswell at illinois.edu > <mailto:criswell at illinois.edu>> > > On 10/6/11 11:48 AM, Rafael Baldiati Parizi wrote: >> Hello, >> I need create a CallInst to this function &g...