similar to: [LLVMdev] LLVM Tutorial 1: Something got wrong?

Good morning everyone, It seems the LLVM tutorial is not up to date anymore and doesn't compile as is... The function makeLLVMModule() function doesn't compile at all. Here is a fix: Module *makeLLVMModule() { // Caches the global context to share it with new Module() and IntegerType::get() calls LLVMContext &context = getGlobalContext(); // Module Construction

We seem to be creating an infinite loop in llvm while trying to implement the simplest possible code generation. Specifically, we are trying to emit code for the following program, as it is easily testable from the command-line: int main(int argc) { return argc; } We got our code generator to build and link with llvm. When we run it, it pauses when running the PrintModulePass and then

I have a module having the blockaddress instruction. When I link it into another module and delete the original, blockaddress disappears and is replaced by inttoptr (i32 1 to i8*). Please compile and run the attached program to see the demo of this problem. Right after linking modules, blockaddress still exists: @switch.bbs = internal global [3 x i8*] [i8* blockaddress(@my_func,

I am new to LLVM API. and I am experimenting with it. I want to create Global Variables in a module. I am able to create local variables using IRBuilder class. I tried using GlobalVariable class to create global variables. but it doesn't work. my code looks like this: Module* mod = new Module("test", getGlobalContext()); Constant* c = mod->getOrInsertFunction("main",

subramanyam wrote: > > I am new to LLVM API. and I am experimenting with it. > I want to create Global Variables in a module. > I am able to create local variables using IRBuilder class. I tried using > GlobalVariable class to create global variables. > but it doesn't work. my code looks like this: > > Module* mod = new Module("test", getGlobalContext()); >

This is x86_64. I have a problem where an absolute memory load define i32 @foo() { entry: %0 = load i32* inttoptr (i64 12704196 to i32*) ; <i32> [#uses=1] ret i32 %0 } generates incorrect code on LLVM 2.4: 0x7ffff6d54010: mov 0xc1d9c4(%rip),%eax # 0x7ffff79719da 0x7ffff6d54016: retq should be 0x7ffff6d54010: mov 0xc1d9c4, %eax 0x7ffff6d54016: retq

Hello Everyone, I am trying to create two modules in LLVM, where first module contains the definition of a function, gcd in this example and another module contains a call to this function. My example is based on the following tutorial, with a few changes. http://llvm.org/releases/2.6/docs/tutorial/JITTutorial2.html When I execute the verifier pass on my modules, it complains that the

Thanks. It works. Actually, the signature of the constructor given in the online documentation is different from the actual source code. Nick Lewycky wrote: > > subramanyam wrote: >> >> I am new to LLVM API. and I am experimenting with it. >> I want to create Global Variables in a module. >> I am able to create local variables using IRBuilder class. I tried using

Hi I'm running the same R script (throuth linux shell) of several cpu's. This R program uses random numbers and the result should be different every time. But if put jobs (through Torque) for several cpu's I get the same result. As a resealt my program saves numbers in file with randomly generated names. works like a charm on one cpu, but I get the same result from different

On Aug 19, 2013, at 14:26 , chentommy <baiypwup at hotmail.com> wrote: > Hello LLVMDev List, > > > It's my first time sending a message to the List - I have been working on a tool for my research project using LLVM. Thanks for your awesome work! > > I have come across some bytecode like the following with an GetElementPtr instruction in brackets: > >

I'm a newbie to LLVM and I've really been struggling to write a pass which changes the behavior of the following function: #include<stdlib.h>#include<stdio.h>#include<string.h>void foo(char* bar){const char* path;path=getenv(<SOME_ENV_VAR>); if (path!=NULL){strcpy(bar,path);}else{printf("env_var not set!");}} In the pass, I hope to invoke

Hi, For the following code const Type * Int32Type = IntegerType::getInt32Ty(getGlobalContext()); AllocaInst* newInst = new AllocaInst(Int32Type, 0, "flag", Bb); Bb->getInstList().push_back(newInst); It gives me the error " error: no matching constructor for initialization of 'llvm::AllocaInst' AllocaInst* newInst = new

Hello; Thanks to Eli for the pointer to the ConstantDataArray::getString() fucntion. Now I am trying to declare a global char array with the content "hi" and call a function "print" (which takes a char pointer and return an insteger. I am doing the following in the code - Function Creation: PointerType* array = PointerType::get(IntegerType::getInt8Ty(getGlobalContext())

Hello LLVMDev List, It's my first time sending a message to the List - I have been working on a tool for my research project using LLVM. Thanks for your awesome work! I have come across some bytecode like the following with an GetElementPtr instruction in brackets: Bytecode:%3 = call i32 @_Z4funcPKc(i8* getelementptr inbounds ([5 x i8]* @.str2, i32 0, i32 0)) C++ code:func("bleh");

2011/4/26 Duncan Sands <baldrick at free.fr> > 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

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

Since I get so much from this list I thought I would share a project I've been working on and how it works with samba (3.0.1). It is Samba related so I hope it's not off topic. I've set up a HA solution with redundant Samba Domain Controllers throuth the "Heartbeat" package at: http://www.ultramonkey.org/download/heartbeat/1.1.3/redhat_9/ I have two "Redhat

Thanks for the quick reply and fix. Now it just means I have to hunt further in exploring why, in my simple test program, replacing the following line of code: GlobalVariable* global = new GlobalVariable(*MyModule, IntegerType::get(getGlobalContext(), 32), false, GlobalValue::ExternalLinkage, 0, "global"); with the following line of code: GlobalVariable* global = new

Thank you for your help I tried Instruction* p=&( Bb->front()); Type * Int32Type = IntegerType::getInt32Ty(getGlobalContext()); AllocaInst* newInst = new AllocaInst(Int32Type,"flag", p); that works well but I need to store the value of the variable too. What's the method that could be used to store specific value?? On 30 July 2013 16:01, John Criswell

Hello, using the LLVM API, I've build one very simple function that adds two ConstantInts and returns the result. I noticed that, when I emit IR code, it is optimized to a simple "ret i16 42" when I add 40 and 2. I'd like to see the operations that are necessary to compute the result, though. Can I somehow disable this optimization in the pass, leading to more verbose IR code?