similar to: [LLVMdev] Modifying debug information through llvm pass

Many DI-related bugs are caused by missing Debug Location in an instruction created in a transformation. Most of the time the fix is trivial once you found where the culprit instruction is created (https://reviews.llvm.org/D50263). Currently, when you create a new Instruction, in order to give it DL you have to either use an IRBuilder that is previously set to the correct DL or “manually” create

Hi As the title says, are all the debug nodes of LLVM IR avaialble in DWARF? If I add a new custom MDNode in LLVM IR, can I expect the debug data will be available in DWARF in the binary if I compile in debug mode? Thanks Riyad -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, There is a "Root" private member in CallGraph <http://llvm.org/docs/doxygen/html/CallGraph_8h_source.html#l00192> class. But there is no way to get access to that member. How can I do that? I can get CallGraphNode of "main" method. But I am curious is there more cleaner way. Thanks, Riyad -------------- next part -------------- An HTML attachment was scrubbed...

Hello, I want an instance of CallGraph in my pass. By looking at -dot-callgraph source, I've tried something like this: CallGraphWrapperPass *CGWP = new CallGraphWrapperPass(); PM.add(CGWP); CallGraph *CG = &CGWP->getCallGraph(); PM.add(new MyPass(CG)); I get the following error: /home/riyad/installs/llvm-3.7.0/include/llvm/PassSupport.h:95:38: error: no matching constructor for

Thanks for the help. I thought I'd solved the problem (setting the line number information in the instruction metadata) by inserting my own function for setting line number in llvm/Support/DebugLoc.h. I have added a function setLine(unsigned) in DebugLoc class. The function simply sets the LineCol variable as needed. But there is a problem. Whenever I'm checking the line number(calling

Hi, I am new to LLVM infrastructure. Recently I am trying to set the debug info for an instruction. The main aim is to set the source line number of an instruction. Can anyone please show how to do that? I think that setMetadata method in Instruction class is to be used. But how do I create MDNode* consisting of desired source line number. Source line number can be extracted from the

Hi, For my project, I am using internal llvm class functions to print the filename and directory associated with an instruction from the debug information. With a recent checkout of llvm and clang (svn revision 129445), the following custom code (e.g. in a pass that prints directory info for all instructions) returns the filename iso. directory whenever Scope refers to a lexical block: if (const

On Mon, Mar 14, 2011 at 8:56 AM, Abhirup Ghosh <abhirupju at gmail.com> wrote: > Hi, >       I am new to LLVM infrastructure. Recently I am trying to set the debug > info for an instruction. The main aim is to set the source line number of an > instruction. Can anyone please show how to do that? >       I think  that setMetadata method in Instruction class is to be used. >

On Tue, Sep 18, 2018 at 1:56 AM Adrian Prantl <aprantl at apple.com> wrote: > > > > > On Sep 17, 2018, at 6:59 AM, Alexander Potapenko via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > > > (I think I've asked a similar question off-list a couple of times, but > > never got an answer) > > > > Hi folks, > > > > For [K]MSAN

Oh! I made a mistake by not using setDebugInfo() function present in the Instruction class. Now it's working fully. So, the solution is:- To set the line number for an instruction - 1. Add a function in DebugLoc class located in llvm/Support/DebugLoc.h. Set the line number there to the private variable called LineCol. 2. Call the added function. And then pass the modified DebugLoc object to

Hi, I want to add "mem2reg" pass similar to this: PassManager PM; PM.add(new LoopInfo()); PM.add(new Mem2Reg()); // What's the class name for this pass I couldn't find the name of corresponding class and header file of mem2reg pass except "mem2reg.cpp". So how can I add mem2reg pass into my pass manager? Thanks, Riyad -------------- next part -------------- An

(I think I've asked a similar question off-list a couple of times, but never got an answer) Hi folks, For [K]MSAN we need to figure out which inlined function a local var originally belonged to in the source file. E.g. when a local buffer %buf is declared in @bar(), but @bar() is inlined into @foo(), then there's a local %buf.i in @foo(), but we need to determine that the local came from

> Every inlinable call in a function that has debug info (F->getSubprogram() returns non-null) must have a DebugLoc associated with it that has a scope chain that ends in that same DISubprogram. Thank you for the comment! I don't know if this is a proper way to fix, but after I add DebugLoc same as inserting position instruction, no error occurs.

Hi I want to insert some functions into the llvm bitcode ir files. So I use IRBuilder and CreateCall(). But it how error : inlinable function call in a function with debug info must have a !dbg location. I don't know what DebugLoc should I give the new CallInst to setDebugLoc. I Create this CallInst , so this CallInst doesn't hava so-called "DebugLoc" mapping to the source

On Wed, Sep 19, 2018 at 5:18 PM Adrian Prantl <aprantl at apple.com> wrote: > > > > > On Sep 19, 2018, at 4:08 AM, Alexander Potapenko <glider at google.com> wrote: > > > > On Tue, Sep 18, 2018 at 1:56 AM Adrian Prantl <aprantl at apple.com> wrote: > >> > >> > >> > >>> On Sep 17, 2018, at 6:59 AM, Alexander

Dear there, I'm trying to call BuildMI in my backend to add a machineinstr. BuildMI(MBB, I, I->getDebugLoc(), TII->get(Vanilla::MOV), Vanilla::R1).addReg(MI->getOperand(1).getReg()); But it gives me an error like this: 0 clang 0x000000010e61a56e llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 46 1 clang 0x000000010e61c209

Hi, don't know if this is the right list. Please post a better place, otherwise. I'm currently writing a LLVM ModulePass and ran into strange segfaults or endless loops within LLVM. My main question is, if this is a programming error or API misuse from me or a LLVM bug? Here is some minimal code, that triggers the bug: ---------------- class DebugPass : public ModulePass { public:

Hi, I'm trying to replace function call with call to wrapper(function_name, num_args, ...), where varargs hold args of original call. Function* launch = Function::Create( TypeBuilder<int(const char*, int, ...), false>::get(context), GlobalValue::ExternalLinkage, "kernelgen_launch_", m2); { CallInst* call = dyn_cast<CallInst>(cast<Value>(I)); if

Thanks Eric, but could you give me a little bit more hints or pointers please? I looked into DebugInfo.h, but I'm still not sure how to start. It sounds like I'd have to somehow manually extract metadata nodes from an instruction. Thanks, JS On Wed, Jan 22, 2014 at 10:14 PM, Eric Christopher <echristo at gmail.com>wrote: > This is likely going to be difficult if possible. I

Every inlinable call in a function that has debug info (F->getSubprogram() returns non-null) must have a DebugLoc associated with it that has a scope chain that ends in that same DISubprogram. https://llvm.org/docs/SourceLevelDebugging.html discusses some of the debug info IR metadata in LLVM. On Fri, Feb 2, 2018 at 1:03 AM Ku Nanashi via llvm-dev < llvm-dev at lists.llvm.org> wrote: