search for: getvoidti

Hello, everyone I am new to LLVM, now I got a problem I want to add a function call before sleep(int a, int b) code below #include <stdio.h> int sleep(int a, int b) { return a+b; } int main(int argc, char **argv) { sleep(1,2); } after use opt -load ../llvm-2.8/Release+Asserts/lib/bishe_insert.so -bishe_insert <1.bc> 2.bc I want get the code #include <stdio.h>

Hi, I want to insert a function with a void type parameter, for example: int foo(void); OI declared fcall2 = M.getOrInsertFunction("foo", IntegerType::get(M.getContext(), 32), Type::getVoidTy(M.getContext())); then the question is how to get the void type value to make the CallInst inserted sucessfully? (what should be ********) CallInst::Create(fcall2, ******,

Thank you for your help I found the problem, as hook() is a no paramter function,so for(Function::arg_iterator i = hook->arg_begin(), e = hook->arg_end(); i != e; ++i) { Args.push_back(i); /////////////Wong } we can add a call by Instruction *newInst = CallInst::Create(hook,

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));

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",

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

Hello, I am trying to create IR block for making a call to function pointer. For creating the IR for a function call to "foo", with "foo" being defined as "void foo(int)", I can use the "getOrInsertFunction" call from Module class as follows: std::vector<Type*> FooArgs; FooArgs.push_back(IRB.getInt64Ty()); Value *FooFunction =

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:

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

To create a stack based (local) 64 bit integer in LLVM IR, I used: Value *var = builder.CreateAlloca(Type::getInt64Ty(Ctx)); I wish to pass this variable to a function "void foo(unsigned long)". I created the signature of function foo() as follows: Constant *func = M->getOrInsertFunction("foo", Type::getVoidTy(Ctx),Type::getInt64Ty(Ctx), NULL); To pass the newly created

Hi Joshua, I have a function foo and I want to insert exit(0) at the end of foo. The problem is M.getFunction returns null, which is understandable. I am not sure what to do. Below is the code snippet. void foo(int argc, char* argv[]) { printf("hello world\n"); exit(0); //***I want to insert this exit } My llvm code snippet is vector<const Type *> params =

Victor Campos wrote: > Guys, > > I would like to instrument the bytecode that LLVM produces with > assertions. I have written the instrumentation code manually, but I do > not know how to halt the program in case the assertion is false. I took > a look into the bytecode that LLVM produces for a program like: > > #include <stdlib.h> > int main() { >

Hi Team, I am migrating one of the Pass that was written for llvm2.2 or older to llvm3.1. The code snippet looks like the following: Constant *func; void add( Module *M) { func = M->getOrInsertFunction("func", Type::getVoidTy(M->getContext()), NULL); } virtual bool runOnModule(Module &M) { add (&M); for(Module::iterator F = M.begin(), E = M.end(); F !=

Guys, I would like to instrument the bytecode that LLVM produces with assertions. I have written the instrumentation code manually, but I do not know how to halt the program in case the assertion is false. I took a look into the bytecode that LLVM produces for a program like: #include <stdlib.h> int main() { exit(1); } And it is like this: define i32 @main() nounwind { entry:

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

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 LLVM, In lib/VMCare/Verifier.cpp::visitInstruction, we have such code 1287 // Check that the return value of the instruction is either void or a legal 1288 // value type. 1289 Assert1(I.getType() == Type::getVoidTy(I.getContext()) || 1290 I.getType()->isFirstClassType() 1291 || ((isa<CallInst>(I) || isa<InvokeInst>(I)) 1292 &&

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

On Thu, Mar 31, 2011 at 9:31 PM, George Baah <georgebaah at gmail.com> wrote: > Hi Joshua, >       I have a function foo and I want to insert exit(0) at the end of foo. > The problem is M.getFunction returns null, which is understandable. I am not > sure what to do. Below is the code snippet. > void foo(int argc, char* argv[]) { >   printf("hello world\n"); >