similar to: [LLVMdev] how to get a void type value in llvm

Hi Shuying, You will find in the documentation that amongst the overloaded CallInst::Create()'s there is one that takes no function arguments: static CallInst* llvm::CallInst::Create ( Value * F, const Twine & NameStr, BasicBlock * InsertAtEnd); Regards On 23/11/2010, at 11:20 AM, Shuying Liang wrote: > Hi, I want to insert a function with a void type parameter, > for example:

Hi, sivart Thanks for pointing it out. I used it, and it works. Thank you again. BTW, for any later reference, the function prototype declaration with no arguments is not what I wrote: fcall2 = M.getOrInsertFunction("foo", IntegerType::get(M.getContext(), 32), Type::getVoidTy(M.getContext())); INSTEAD, I changed to : fcall2 = M.getOrInsertFunction("foo",

I'm using LLVM 3.3 Release. From the Class Reference Page. CallInst has a member function : static CallInst * Create (Value *Func, ArrayRef< Value * > Args, const Twine &NameStr="", Instruction *InsertBefore=0) This is what I want to use! the default name is "" and I also use that . Thanks! ----- Kind Regards! -JinHuang -- View this message in context:

Hi,everyone. I'm writing a pass in which a CallInst to an external function will be inserted. The function is declared like this: void func(int a, unsigned chat *p); and in the Pass(a Function Pass ,and using the InstVistor template ), I wrote like this: void visitStoreInst(StoreInst &SI) { //Get the refference of the types Module *M =

Akshay Jain <jivan.molu at gmail.com> writes: > I have tried it, but I always end up with some kind of error. Can you > explain how can I get a function type for function which returns void > (nothing) and it's arguments are (int, int, int, void *, void *, ...) ?? Instead of getting something to cut&paste, you would be much more enriched if the problematic code and the

I have tried it, but I always end up with some kind of error. Can you explain how can I get a function type for function which returns void (nothing) and it's arguments are (int, int, int, void *, void *, ...) ?? Thanks in advance. On Tue, Apr 16, 2013 at 7:22 AM, Óscar Fuentes <ofv at wanadoo.es> wrote: > Akshay Jain <jivan.molu at gmail.com> writes: > > > I am

The code that I have written to get the function type is: const std::vector<Type *> ParamTys; ParamTys.push_back(IntegerType::getInt32Ty(Context)); ParamTys.push_back(IntegerType::getInt32Ty(Context)); ParamTys.push_back(IntegerType::getInt32Ty(Context)); ParamTys.push_back(PointerType::get(Type::getVoidTy(Context), 0)); ParamTys.push_back(PointerType::get(Type::getVoidTy(Context), 0));

target triple = "i386-pc-linux-gnu" On 13/05/2010, at 9:25 PM, Anton Korobeynikov wrote: >> int (*FP)() = (int (*)())FPtr; >> int res = FP(); >> >> when the function executes correctly in the case of instead having created a standard global variable. > What is the platform you're running the code on? > > -- > With best regards, Anton

Hi, I'm trying to get my head around c++ - IR - c++ API and getting used tramform manual information to code. The manual states alloca is defined for <type>. FunstionType is a type, so alloca for functionType should be possible? Not? If we have a valid Module *m we can get an allocate instruction allocating space for a non-argumented function as follows: AllocaInst* pa2 = new

I note also that this is not a currently unsupported target case where an error should/could/would be produced on attempting to emit code with thread local references. I say this because clang is able to compile both c source with __thread on a global and bc containing a @variable = thread_local global ... and a function that references the thread local global variable to both assembly and machine

Thanks for your reply. After I change Cstr to gI, it compiled successfully. Thanks again. Another question is for constructing getelementpt. // C code char gStrA[10] = "test str"; // here is Global variable,gStrA and initializer "test str" char gStrB[10]= "test str2"; main(){ int = i; char *pGVars[20]; // here, the pGVar is for storing the address of each

Hi, This is probably more of a standard C++ question instead of an actual LLVM question, but here it goes anyway. I'm trying to invoke the following constructor: CallInst::CallInst(Value *Func, InputIterator ArgBegin, InputIterator ArgEnd, const Twine &NameStr, BasicBlock *InsertAtEnd); My code is: using namespace llvm; void replaceByClone(Function *f, CallInst *I){ Function *clone =

Hi Nabila, > where did the "noalias" attribute and "tail call" (rather than "call") come > from? Are you setting these yourself or running some optimization pass after > your pass? > > > i have written a module pass and i have compiled it and then you didn't answer my questions, you just repeated what you said before. Ciao,

Hi, I stumbled upon a strange thing regarding types and module linking, which I don't quite get, so maybe someone around here can enlighten me. Consider the following code, which will create 2 modules m1 and m2, and a named structured type %T = { i32 }; m1 contains only a function definition f(%T), m2 contains a function declaration f(%T) and a function definition h(%T), where h will call f

Hello Chris The general concept is to replace void with {}. Void is a weird type in >> that it is only allowed as the return value of functions and as the type of >> instructions like store. It seems better (though also not particularly >> high priority) to eliminate it to make the type system more consistent. >> > MVT::isVoid and Type::VoidTyID (getVoidTy) have

Hello Duncan, There is a discussion with Chris Lattner: http://old.nabble.com/Eliminating-the-'void'-type-td33726468.html In the discussion, Chris Lattner suggest Type::getVoidTy() should still exist and return {} for API continuity. If VoidTy and isVoidTy() go away, how do deal with the isVoidTy() function call in LLVM source tree? Another issue is: What should ReturnInst constructor

Hi, I want to insert a write operation to a fd opened, but I have some questions to construct parameters to pass to function that I want to insert, because one from a return value from previous call, the other one is a string, The detailed description of the problem is as follows; I have: int fd = open(g_settings_path, O_RDONLY); and I want to insert this function after the instruction above:

2011/4/26 Duncan Sands <baldrick at free.fr> > Hi Nabila, > > Now when i tried this pass an error says: >> Wrong type for attribute noalias >> tail call void @consume(i32 noalias 3, i32* @y) nounwind >> >> >> noalias is only for arguments of pointer type. You probably meant it >> to >> be on the second argument

Hi Dan, >> I am willing to do "eliminating the void type" project. > > Is this really a good idea? I'm not going to argue at length > about it, but it is worth thinking about. > > The only practical downsides of void are when newcomers take C's > syntax for functions with no arguments a little too literally, or > when they try to create pointers to

Hi: In a function pass, I tried to create a function which takes a int32 and return void. When I call this function with CallInst::Create and using opt, it always has the error report: opt: Value.cpp:189: void llvm::Value::setName(const llvm::Twine&): Assertion `getType() != Type::getVoidTy(getContext()) && "Cannot assign a name to void values!"' failed. if I change