similar to: Kaleidoscope tutorial: extern functions failing

To try to find out why it was crashing, I followed the trail of function calls: C:\llvm\examples\Kaleidoscope\Orc\initial\toy.cpp auto ExprSymbol = J.findUnmangledSymbol("__anon_expr"); JITSymbol findUnmangledSymbol(const std::string Name) { return findSymbol(mangle(Name)); } JITSymbol findSymbol(const std::string &Name) { return CompileLayer.findSymbol(Name,

Hi, I'm currently working my way through the tutorial with LLVM 3.9.1 on Windows (finished chapter 4) and stumbled over a few things which could be improved: - "LLVMContext" does not exist as a variable -> "TheContext" - Chapter 3: 5 times - Chapter 4: 1 time - Chapter 5: 4 times - Chapter 6: 2 times - Chapter 7: 2 times 3.4. Function Code

Hi, I wrote a compiler that generate IR code and run it on the JIT, and there randomly crashed due to "corrupted size vs. prev_size" depends on the IR code generated from the source code. Here's how I created the JIT: llvm::InitializeNativeTarget(); llvm::InitializeNativeTargetAsmPrinter(); llvm::InitializeNativeTargetAsmParser(); // create jit llvm::orc::ExecutionSession

Hi, for my application (uses Builder and MCJIT) I am making the transition LLVM 6.0 -> 8.0. It runs fine for self-contained functions, but whenever a jit-ed function contains calls to the math library (e.g. @cosf) it seems to have problems getting the address after successfully finding the symbol: Failure value returned from cantFail wrapped call UNREACHABLE executed at

Addendum: this still fails: auto ExprSymbol = J.findSymbol("putchard"); As yet, I have no idea why - that symbol even seemed to be exported: extern "C" double putchard(double X) { putchar((char)X); return 0; } On Fri, Apr 1, 2016 at 2:42 AM, Russell Wallace <russell.wallace at gmail.com> wrote: > To try to find out why it was crashing, I followed the

When using ORC JIT, I'm having trouble with external function resolution (that is, of a function defined in the app, with C linkage). I add a declaration for the function to my IR, and when I use MCJIT, it finds it and all is well, But when I use ORC JIT (I *think* correctly, at least it closely matches what I see in the tutorial), I get an LLVM error, "Program used external function

Hi I hope this is a proper place to put my question. I've compiled Kaleidoscope from "Adding JIT and Optimizer Support" tutorial. Basically it works just fine but when I try to run extern'ed putchard function it aborts. Please, tell me what am I doing wrong? Here is more information: My PC runs FreeBSD. I've copied the toy source code exactly and didn't change it.

Thanks so much! This seems to do the trick. I would have spun my wheels for a long time before discovering all of this, wow. Do I even want to know what additional chickens need to be sacrificed to get this to work on Windows? -- lg > On May 18, 2016, at 1:52 PM, Lang Hames <lhames at gmail.com> wrote: > > Hi Larry, > > You're basically there, but you're hitting

Hi Larry, Thanks so much! This seems to do the trick. I would have spun my wheels for > a long time before discovering all of this, wow. No worries. :) I'll try to keep this in mind and make sure I address it in future Kaleidoscope tutorial chapters - these issues tripped me up the first time I encountered them too. Do I even want to know what additional chickens need to be sacrificed

Are the Kaleidoscope examples supposed to work on Windows? e.g. C:\llvm\examples\Kaleidoscope\Orc\initial\toy.cpp when I try to compile this with clang it gives compile time error messages, and when I try with Microsoft C++ it generates an executable that runs but crashes when I type in an expression; I get similar results with a few of the other versions. I can give more detailed feedback if

>> llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr) This is one is a bit tricky and hard to find. I spent quiet some time digging into MC and ORC JIT execution engines trying to find what makes them work. The problem is that this trick (LoadLibraryPermanently) happens inside of EngineBuilder, despite that the functionality belongs to a JIT engine itself, not to the builder. I

Hello, > ready> ERROR: Program used external function 'putchard' which could not be > resolved! > Any idea of what could be wrong? Please make sure you're using C linkage for such functions, due to mangling the name of function being emitted is not "putchard". Something like this: extern "C" void putchard(char c) { ... } Or, just provide a mapping

Anton Korobeynikov wrote: > > Hello, > >> ready> ERROR: Program used external function 'putchard' which could not >> be >> resolved! >> Any idea of what could be wrong? > Please make sure you're using C linkage for such functions, due to > mangling the name of > function being emitted is not "putchard". Something like this: >

Hi Again, I'm a little confused regarding what is the exact Orc's functions I should use in order to save the functions code in a code cache so it could be later replaced with different versions of it and I appreciate your help. Just a reminder I want to dynamically recompile the program based on profile collected at the run-time. I would like to start executing the program from the

Hi Dibyendu, I had a look - to be honest I am not sure where the error is being > reported from. It looks like this: > JIT session error: Symbols not found: [ luaV_tointeger_, luaG_runerror ] > I don't think it is from any logging I am doing. Errors in ORC may trigger cascading failures. E.g. if two different modules M1 and M2 both reference a function "foo" which cannot

Hi Lang, On Mon, 13 Apr 2020 at 19:12, Lang Hames <lhames at gmail.com> wrote: > >> I updated my project to LLVM 10.0 today and I am getting JIT symbol resolution errors. >> I could not find any example or updated tutorial or documentation that describes the new api - as all documentation seems out of date. > > > The doxygen comments should be up-to-date, as should

Hi, I updated my project to LLVM 10.0 today and I am getting JIT symbol resolution errors. I could not find any example or updated tutorial or documentation that describes the new api - as all documentation seems out of date. I paste below some code snippets that show what I am doing: /* global syms is a array mapping names to function addresses */

Link with -rdynamic or provide a mapping. /Stein Roger Andrii Vasyliev wrote: > Hi > > I hope this is a proper place to put my question. > > I've compiled Kaleidoscope from "Adding JIT and Optimizer Support" tutorial. > Basically it works just fine but when I try to run extern'ed putchard > function it aborts. > Please, tell me what am I doing wrong?

Hi, I still can't get IR functions to JIT compile with the ORC JIT when they contain a call to the standard math library. Attached is a minimal exploit. The program uses the KaleidoscopeJIT.h that ships with LLVM 8 (except that I had to expose the Datalayout). It reads from the filesystem an IR file (filename "func_works.ll" or "func_cos_fails.ll) and asks the ORC JIT

I am upgrading our JIT application to use LLVM 6.0.0, and with this transition I am making the move to use the new MCJIT facility. A problem I am encountering is that the math functions from libm are not resolved/found. I am using the lambda resolver from the KaleidoscopeJIT class which first searches the present modules and, if that is unsuccessful, continues the search in the whole process