similar to: [LLVMdev] Segmentation fault - Kaleidoscope

FWIW, I'm also suddenly experiencing segfaults in code that used to work a few days ago (I'm using svn). This may be unrelated to the problem described below, but perhaps it's the same thing. In my case it seems that creating an ExecutionEngine has changed. I used to do Module* Mod = makeLLVMModule(); // basically create a gcd function verifyModule(*Mod,

On Jun 17, 2009, at 9:46 AM, Paul Melis wrote: > FWIW, I'm also suddenly experiencing segfaults in code that used to > work > a few days ago (I'm using svn). This may be unrelated to the problem > described below, but perhaps it's the same thing. > > In my case it seems that creating an ExecutionEngine has changed. I > used > to do > > Module* Mod

Hello, Maybe my version (LLVM 2.5) is incomplete... now get this error: toy.cpp:11:38: error: llvm/Target/TargetSelect.h: No such file or directory How can I get this file? Regards, Juan Carlos On Wed, Jun 17, 2009 at 12:51 PM, Chris Lattner <clattner at apple.com> wrote: > > On Jun 17, 2009, at 9:46 AM, Paul Melis wrote: > > > FWIW, I'm also suddenly experiencing

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

Hello everyone: I have a little question about the second argument *action* of verifyFunction. In docs: *Enumerator: * *AbortProcessAction* verifyModule will print to stderr and abort() *PrintMessageAction* verifyModule will print to stderr and return true *ReturnStatusAction* verifyModule will just return true But it still abort when I pass

Hi, I want to convert LLVM bitcode files to cpp. I use these commands: 1. clang -c -emit-llvm -fopenmp=libiomp5 oh2.c -o oh2.bc2. llc -march=cpp oh2.bc -o oh2.cpp3. g++ -fno-rtti -O0 -g `$HOME/llvmbuild/bin/llvm-config --cxxflags` oh2.cpp `$HOME/llvmbuild/bin/llvm-config --ldflags --libs --system-libs` -o oh2c After the 3rd command, I get a lot of compilation errors. Is it possible that llc

Hi Xiu, The Verifier pass runs a PreVerifier pass, which does not honour the action argument, and will always abort on a broken module, (Line 106, lib/VMCore/Verifier.cpp) Perhaps you should file a bug against this, to allow you to not abort if you so wish. Joey On 11 June 2012 09:41, Guowei Xu <myesis at gmail.com> wrote: > Hello everyone: > > I have a little question

Hey there, I'm relatively new to the llvm scene, and so far I'm liking it quite a bit. I'm a bit perplexed as to what llvm-gcc's role is in everything. I've used it to create .bc files for really simple functions and it seems to do quite well at that, but I've been trying to figure out how to take the output from llvm-gcc and actually use it in another program.

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

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?

Hi Danny, On 2007-12-26, at 15:39, Danny wrote: > I've noticed that the BitcodeReader appears to be an internal > module, but the BitstreamReader is public. Should I be using the > BitstreamReader? If so how. The generic BitstreamReader class is public because it's used in other projects, including clang, to serialize data structures other than LLVM IR. The coding of

I'm using the gvn pass, not sure about basic-aa. I've copied the code as-is from http://llvm.org/docs/tutorial/LangImpl4.html#code and added "F->addFnAttr( Attribute::ReadOnly )" after "Function *F = Function::Create(FT, Function::ExternalLinkage, Name, TheModule)". The passes it sets up are: // Set up the optimizer pipeline. Start with registering info about

That worked quite well. Thank you. One question as a follow up: is there a nice/standard way of including the pre-made bitcode chunks in with the binaries that are being created which read them? Bascially, I'd like to have the same functionality, but rather than having one or more .bc files running around which need to be read at runtime by an executable, moving that into the code

Hi Rob, > I'm using the gvn pass, not sure about basic-aa. if you are using LLVM from svn then you need to specify the basic-aa analysis, otherwise gvn won't unify calls to readonly/readnone functions. This is new behaviour introduced by Dan; probably the tutorial should be updated. Ciao, Duncan. > > I've copied the code as-is from

First, you have to call llvm-g++ to use the llvm-gcc front end, but it doesn't matter here. I'd like to suggest that you use pastebin to put your code and the send us the link, so that we can download it. The problem is that TheExecutionEngine is set to NULL (maybe because of a previous error), but it will be really better if you use pastebin. On Wed, Feb 17, 2010 at 6:01 AM, Todd Rovito

Hi everyone. I am using LLVM 2.4 release to practise the tutorial at Kaleidoscope Chapter 4. I built the LLVM library, and created my own project, and then paste the code from the tutorial into my own project. Then after compiled and built it, I passed the built stage. (I am using visual studio 2005 ) However, when I tried to input some code in the command line window, the sample program crashed.

Hi Rob, > Hmm ... I tried setting that right after Function::Create but I still get the same result (though flagged with "readonly") did you run the gvn pass (preceded by basic-aa)? Ciao, Duncan.

On May 27, 2012, at 9:15 PM, Santos Merino wrote: > I have found that the problem is the endianness of Values. For example a 1 it's > stored as 00000001 00000000 00000000 0000000 instead of 0000000 00000000 0000000 > 00000000 so how can I change how the values are stored and/or load (because I > suppose that the problem is when I store it or load from memory) Are you setting up

> You need to set attribute ReadOnly on the sin / cos functions, using > Function::addFnAttr(Attribute) for example. Hmm ... I tried setting that right after Function::Create but I still get the same result (though flagged with "readonly") declare double @sin(double) readonly declare double @cos(double) readonly define double @foo(double %x) readonly { entry: %calltmp = call

Rob, I can reproduce the behaviour you observe using llvm top-of-tree. I will try to look into it. Best regards, -- Arnaud de Grandmaison -----Original Message----- From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Rob Pieke Sent: Monday, November 15, 2010 4:27 PM To: Duncan Sands; llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] Optimization of calls to