search for: getelementptrinst

...re: static llvm::PointerType* llvm::PointerType::get(const llvm::Type*, unsigned int) StackerCompiler.cpp: In member function 'llvm::Instruction* StackerCompiler::get_stack_pointer(llvm::BasicBlock*, llvm::Value*)': StackerCompiler.cpp:432: error: no matching function for call to 'llvm::GetElementPtrInst::GetElementPtrInst(llvm::GlobalVariable*&, llvm::Value**, size_t)' /opt/src-llvm/include/llvm/Instructions.h:480: note: candidates are: llvm::GetElementPtrInst::GetElementPtrInst(llvm::Value*, llvm::Value*, const std::string&, llvm::BasicBlock*) /opt/src-llvm/include/llvm/Instructions.h...

Thanks Ryan, I'm able to retrieved the type using the following code: Type *type=getElementPtrInst->getSourceElementType(); On Fri, Aug 12, 2016 at 7:00 PM, Ryan Taylor <ryta1203 at gmail.com> wrote: > Take a look at visitGetElementPtrInst in InstructionCombining.cpp for some > examples about how to iterate over GEP and check for type. > > http://llvm.org/docs/doxygen/ht...

...defined symbols for architecture x86_64: "llvm::ConstantExpr::getGetElementPtr(llvm::Constant*, llvm::ArrayRef<llvm::Value*>, bool)", referenced from: llvm::ConstantExpr::getInBoundsGetElementPtr(llvm::Constant*, llvm::ArrayRef<llvm::Value*>)in ccFB7xjg.o "llvm::GetElementPtrInst::getIndexedType(llvm::Type*, llvm::ArrayRef<llvm::Value*>)", referenced from: llvm::GetElementPtrInst::GetElementPtrInst(llvm::Value*, llvm::ArrayRef<llvm::Value*>, unsigned int, llvm::Twine const&, llvm::Instruction*)in ccFB7xjg.o "llvm::PointerType::get(llvm::Typ...

...tecture x86_64: > "llvm::ConstantExpr::getGetElementPtr(llvm::Constant*, > llvm::ArrayRef<llvm::Value*>, bool)", referenced from: > llvm::ConstantExpr::getInBoundsGetElementPtr(llvm::Constant*, > llvm::ArrayRef<llvm::Value*>)in ccFB7xjg.o > "llvm::GetElementPtrInst::getIndexedType(llvm::Type*, > llvm::ArrayRef<llvm::Value*>)", referenced from: > llvm::GetElementPtrInst::GetElementPtrInst(llvm::Value*, > llvm::ArrayRef<llvm::Value*>, unsigned int, llvm::Twine const&, > llvm::Instruction*)in ccFB7xjg.o > "llvm::P...

Hello, consider the following IR code : %count4 = getelementptr inbounds %struct.r32, %struct.r32* %cur.087, i64 0, i32 4 How to check in the instruction, whether the operand is a structure or not if(isa<GetElementPtrInst>(instruction)) { GetElementPtrInst *getElementPtrInst=dyn_cast<GetElementPtrInst>(&instruction); //check if getElemetPtrInst operands structure or array. } Thank You regards, Bernard Nongpoh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http:/...

...cBlock *BBlock = new BasicBlock("entry", MyFunc); ... Value *Zero = ConstantSInt::get(Type::IntTy, 0); Value *UZero = ConstantUInt::get(Type::UIntTy, 0); MallocInst* mi = new MallocInst( STyStru ); mi->setName("tmp.0"); BBlock->getInstList().push_back( mi ); GetElementPtrInst *m_Next = new GetElementPtrInst(mi, UZero, Zero, "tmp.3", BBlock ); ... ======================== But I tried your code instead of the lines above: GetElementPtrInst *GEP = new GetElementPtrInst(mi, // %tmp.0 ConstantSInt::get(Type::IntTy, 0),...

Hi all, How can I create an llvm::GetElementPtrInst in which the pointer and the index are in registers previously loaded with llvm::LoadInst ? I mean, the generated instruction will be like this: %1 = getelementptr i8* %myreg1, i32 %myreg2 here, %myreg1 and %myreg2 are previously created by load instructions (llvm::LoadInst). Please, let me kn...

...ith LLVM rev - 147926 cast instructions. Here is my code: ............ for(std::vector<Value*>::iterator it = getElementPtrs.begin(); it != getElementPtrs.end(); ++it) { Value* current = *it; errs() << *current << "\n"; GetElementPtrInst* gep = cast<GetElementPtrInst>(current); assert(gep != NULL && "GetElementPtrInst must be valid!"); ............ Program crashes with the above mentioned assertion. Here getElementPtrs is a vector of Values, that are GetElementPtrInst- s. errs() works fine....

If I dump the Value of GetElementPtrInst->getPointerOperand(), I got this: %a = alloca [10 x i32], align 16 Obviously, there should be a way to get the dimension and element type via the "Value" returned from GetElementPtrInst->getPointerOperand(), but how? What kind of "Value" is this? Thanks! Welson -----...

When I try to do this: GetElementPtrInst *newIns = new GetElementPtrInst( ... ); OldIns->ReplaceAllUsesWith( newIns ); When I compile the code, it always says, no matching function for call to `GetElementPtrInst::ReplaceAllUsesWith (GetElementPtrInst *&)' But since GetElementPtrInst is a subclass of Value, why cannot use...

Hi During a pass, the XCore target lowers thread local global variables by turning them into global variable arrays indexed by the (max 8) thread ID. (see XCoreLowerThreadLocal.cpp) This works fine for instructions e.g. GetElementPtrInst But can't be done for constants e.g. GetElementPtrConstantExpr Thus I would like to replace GetElementPtrConstantExpr with GetElementPtrInst when it is accessing a thread local global variable. (Other constant expression ignored for now). My attempt (example code below) has revealed my lack o...

...ease avoid this if possible. Why are operand lists stored as templates instead of arrays? "Op<0>" is very strange to me. /// Constructors - These two constructors are convenience methods because one /// and two index getelementptr instructions are so common. static GetElementPtrInst *Create(Value *Ptr, Value *Idx, const std::string &Name = "", Instruction *InsertBefore = 0) { - return new(2/*FIXME*/) GetElementPtrInst(Ptr, Idx, Name, InsertBefore); + return new(2) GetElementPtrInst(Ptr, Idx, Name, InsertBefore);...

...wrong when using the above method. What was it? :) Cheers, James ________________________________________ From: llvmdev-bounces at cs.uiuc.edu [llvmdev-bounces at cs.uiuc.edu] On Behalf Of Eduardo [erocha.ssa at gmail.com] Sent: 02 December 2012 15:37 To: llvmdev at cs.uiuc.edu Subject: [LLVMdev] GetElementPtrInst question Hi all, How can I create an llvm::GetElementPtrInst in which the pointer and the index are in registers previously loaded with llvm::LoadInst ? I mean, the generated instruction will be like this: %1 = getelementptr i8* %myreg1, i32 %myreg2 here, %myreg1 and %myreg2 are previously cr...

Hi James, Thanks for your quick reply. > I assume because you asked this question, something went wrong when using the above method. What was it? :) No, I am not using this method. I was trying to create a llvm::GetElementPtrInst . I didn't create IRBuilder. I am writing a ModulePass that insert new instruction to an existing Module. Besides, how can you get a reference to myreg1 ? Looking at your snippet this variable would be a llvm::Value* (I saw that in the documentation of IRBuilder). All I have in my code is some...

...reference to an operand? For example, let suppose I have a reference to the ConstantExpr "getelementptr inbounds" in the following instruction: %4 = getelementptr i32* getelementptr inbounds ([8 x i32]* @__mem_grid_MOD_nnyp, i32 0, i32 0), i32 %3 then, how can I get a reference to the GetElementPtrInst object? The reason I need that is because I want to change every instruction that uses certain variables (in the example above the __mem_grid_MOD_nnyp variable). The problem is that for the example I showed the actual user of the variable is a ConstantExpr object and not the GetElementPtrInst obje...

...tion("mcp_trace_instruction", FT); return true; } then inserting a suitable CallInst instruction new CallInst(TraceFunc, gepinst, "", *wp); Looking at disassembly output from similar code, I can't just pass the constant array directly to the call because I need a GetElementPtrInst conversion. This is the thing I'm having trouble with. My current attempt is: GetElementPtrInst *gepinst = new GetElementPtrInst(itext, ConstantInt::get(Type::Int32Ty, 0), ConstantInt::get(Type::Int32Ty, 0), "", *wp); but it fa...

...13 store [13 x i8] c"Hello world.\00", [13 x i8]* %myString %tmp1 = getelementptr [13 x i8]* %myString, i32 0, i32 0 %tmp2 = call i32 (i8*, ...)* @printf( i8* %tmp1 ) nounwind A simple Hello World example. But I can't seem to figure out what I'm supposed to pass to the GetElementPtrInst. For example, this snippet: std::vector<llvm::Value*> args; auto strValue = llvm::ConstantDataArray::getString(llvm::getGlobalContext(), llvm::StringRef("Hello world.")); std::vector<llvm::Value*> index_vector; index_vector.push_back(Builder.getInt32(0));...

Hi Dominic, +//===-- llvm/Support/IRBuilder.h - Builder for LLVM Instrs -----*- C++ -*-===// is this line the right length? It seems shorter than the similar lines below like this one: +//===----------------------------------------------------------------------===// + GetElementPtrInst *CreateStructGEP(Value *Ptr, unsigned Idx, + const char *Name = "") { + llvm::Value *Idxs[] = { + ConstantInt::get(llvm::Type::Int32Ty, 0), + ConstantInt::get(llvm::Type::Int32Ty, Idx) + }; + return Insert(GetElementPtrInst::Create(P...

...nst_begin(F), E = inst_end(F); I != E; ++I) { Instruction *Inst = &*I; if ( CallInst *ci = dyn_cast<CallInst>(Inst) ){ ci->dump(); for(int i = 0; i < ci->getNumArgOperands(); i++){ Value *v = ci->getArgOperand(i); if (GetElementPtrInst *vi = dyn_cast<GetElementPtrInst>(v)){ Value *vPtr = vi->getPointerOperand(); vPtr->dump(); if ( AllocaInst *allo = dyn_cast<AllocaInst>(vPtr) ) { const Type *t = allo->getAllocatedType(); if ( const Arra...

...e, label_entry); LoadInst* float_tmp5 = new LoadInst(ptr_y, "tmp5", false, label_entry); BinaryOperator* float_tmp6 = BinaryOperator::create(Instruction::Add, float_tmp2, float_tmp5, "tmp6", label_entry); StoreInst* void_20 = new StoreInst(float_tmp6, ptr_z, false, label_entry); GetElementPtrInst* ptr_tmp10 = new GetElementPtrInst(ptr_x, const_int32_13, "tmp10", label_entry); LoadInst* float_tmp11 = new LoadInst(ptr_tmp10, "tmp11", false, label_entry); GetElementPtrInst* ptr_tmp13 = new GetElementPtrInst(ptr_y, const_int32_13, "tmp13", label_entry); LoadInst* f...