similar to: [LLVMdev] Inserting a varargs function declaration with getOrInsertFunction()?

Hi All, I am using code similar to giri instrumentation <https://github.com/liuml07/giri> framework to insert my instrumentation code. It works for normal functions for example to insert recordInt32 function below. void recordInt32(int32_t val){ printf("%d, ", val); } I can get recodedInt32 function in my Module using getOrInsert Function. Function* RecordInt32 =

Such as printf, etc., from IR created using the API (IRBuilder). Google hasn't provided much help, and I can't find anything relevant in the docs (the docs talk about how to do varargs in LLVM ASM, but not how to call an external vararg function that exists in a library that gets linked to the LLVM module). Is there something special I need to do? Simply calling

I actually need this feature quite badly in my untyped language compiler: since I support first-class functions, I've made the types of all functions a standard vararg (so I can box them). The implementation crashes when I try to read out the value of gc.result. Hints as to what might be wrong? Signed-off-by: Ramkumar Ramachandra <artagnon at gmail.com> ---

Hi All, I am trying to insert printf ("%d", v), where v is an integer param, into the IR. I am doing something wrong because I keep getting segfaults. Below is my code. Thanks. vector<const Type *> params; params.push_back(Type::getInt8PtrTy(M.getContext())); params.push_back(Type::getInt32Ty(M.getContext())); FunctionType *fType =

I'm now writing a pass and I wanna ask a question about how to duplicate the function and add duplicated arguments in llvm, for example: func(int a, char *b) -> func(int a, char *b, int a1, char *b1) I'm now stuck at using "getOrInsertFunction" and how to handle "getArgumentList", please share your opinion, thanks a lot! James

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,

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

Hi LLVMers, the example attached I have used to prove that JIT and some visible optimizations are really invoked. Proved OK. I got 30% speed-up in comparison to gcc 3.3.3 on my Athlon XP 1500. Nice. P.S. guys, no fears, I don't plan to flood the cvs repository with my "brilliant" examples ;) --- Valery A.Khamenya -------------- next part -------------- An

Gregory Junker <gjunker at dayark.com> writes: > Such as printf, etc., from IR created using the API (IRBuilder). > > Google hasn't provided much help, and I can't find anything relevant in > the docs (the docs talk about how to do varargs in LLVM ASM, but not how > to call an external vararg function that exists in a library that gets > linked to the LLVM

I am working on a pass in which I need to define and insert a function with variable arguments. Can I do it with the help of getOrInsertFunction()? If not can someone tell me any other method? It will be very helpful if anyone can help. Thanks in advance -- *Akshay Jain * -------------- next part -------------- An HTML attachment was scrubbed... URL:

Is there some reason that RefineAbstractType doesn't recurse down DerivedTypes and further resolve abstract types? In Fortran it is possible to have a routine that takes a function pointer to a routine with the same signature. This is not possible to express in C/C++. I'm not sure it's possible to express in LLVM either without using varargs (opinions welcome). In a simpler C++

Hi, I' am trying to insert an InlineAsm Instruction in my pass, which FunctionType do I need for Inlineasm? If I understand it right, I need a call instruction to insert the new produced InlineAsm? Thanks for help, Michael for (BasicBlock::iterator bi = i->begin(), be = i->end(); bi != be; ++bi){ std::vector<const Type*> asm_arguments;

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

Akshay Jain <jivan.molu at gmail.com> writes: > I am working on a pass in which I need to define and insert a function with > variable arguments. Can I do it with the help of getOrInsertFunction()? Sure. There is an overload of getOrInsertFunction that takes a FunctionType, and there are FunctionType::get static methods where you say if the function type takes a variable number of

Hola LLVMers, I'm looking to make use of the vectorization primitives in the Intel chip with the code we generate from LLVM and so I've started experimenting with it. What is the state of the machine code generated for vectors? In my tinkering, I seem to be getting some wonky machine instructions, but I'm most likely just doing something wrong and I'm hoping you can set me in

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 =

On Jul 31, 2009, at 10:24 AM, Michael Graumann wrote: > Hi, > I’ am trying to insert an InlineAsm Instruction in my pass, which > FunctionType do I need for Inlineasm? > If I understand it right, I need a call instruction to insert the > new produced InlineAsm? > > Thanks for help Inline asm works like a "callee". So for: call void asm sideeffect

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"); >

Hi Everyone, I am trying to construct the print statement : printf("value:%d\n", value); This is my llvm code. It is seg faulting at builder.CreateGlobalStringPtr(str,""). Thanks. George vector<const Type *> params; params.push_back(Type::getInt8PtrTy(M.getContext())); FunctionType *fType = FunctionType::get(Type::getInt32Ty(M.getContext()), params, true); Constant

Philip Reames wrote: > Any change outside of statepoint lowering is highly suspect. Notice that SelectionDAGBuilder::LowerCallTo (the one I'm modifying) has exactly one other caller: visitCall, which doesn't match vararg functions. Every other codepath directly calls TargetLowering::LowerCallTo, supplying CallLoweringInfo information explicity (it's a structure with a vararg