similar to: How to set DebugLoc when using IRBuilder's CreateCall ?

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 I want to write a FunctionPass to insert some code before return. Funcion: .. .. .. mov eax,[esp] cmp eax,0x12345678 je 0x12345678 ret (maybe stack will not balance) I wonder that can I get the return address at llvm ir level? I use IRBuilder to CreateICmpEQ and CreateCondBr. but I don't how to get the value of return addrss. I have found there is a Intrinsic::returnaddress. Is

Hi, I need to pass some arguments to CreateCall function (as Value *). For example, I need to pass a 64 bit integer (with a value I calculate). How can I convert the 64 bit integer to a value * in order to pass it? Thanks a lot, Tehila. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hey guys, Whys are there like 5 variants of CreateCall in IRBuilder<> with numbers appended to them? The only difference I can see is the number of arguments. Aren't C++ function overloads be suited for this? Félix

On Jun 25, 2010, at 6:24 PM, Félix Cloutier wrote: > Hey guys, > > Whys are there like 5 variants of CreateCall in IRBuilder<> with numbers appended to them? The only difference I can see is the number of arguments. Aren't C++ function overloads be suited for this? An overload could work, but this sort of API makes it more obvious which one you're trying to call and

Hi All, I want to change debug information of an llvm instruction so that the modified debug info is subsequently passed to executable binary. So if I use "addr2line" utility on the binary, it will return my modified debug information. I've tried to change by using the following code snippet: MDNode *N = Inst->getMetadata("dbg"); DebugLoc Loc =

> 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.

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

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 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

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:

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. >

Hi, I'm trying to inline function defined in another bitcode module via bitcode modification. I'm linking multiple bitcode modules, setting inline related attributes, applying -always-inline pass, but then debug info error occurs. It seems debug info metadata isn't properly updated on inlining. How can I fix it? I'm using LLVM 3.8.1 on OS X (On below example target is Android but

Just working on some of the gmlt+fission debug info stuff and I came across a comment that might be relevant to reducing the number of distinct debugloc metadata nodes: "or some sub-optimal metadata that // isn't structurally identical (see: file path/name info from clang, which // includes the directory of the cpp file being built, even when the file name // is absolute (such as

Hi all, When emitting GC information, it can be very useful to emit the debug location of a GC point, represented as a MCSymbol. Infortunately I haven't found any API (JIT and codegen) where I can get from a MCSymbol to a DebugLoc. Does that interface exist? If not, I plan on committing a small change in the GC code where the debug location is passed to the constructor of a GC point. Patch

So Reid came across a case where the current strategy (dropping locations when they move across basic blocks) proves to be at odds with another precept we have: inlinable calls must have locations, so that if/when they are inlined the location can be accurately described (due to the nature of our IR representation of inlining, a location must be given for the call site so that the DIEs for the

This is maybe a minor issue, but it is obvious when one looks at debug info produced by clang. Such records are normally created by the code like this: Instruction->setDebugLoc(llvm::DebugLoc::get(Line, Column, Scope)); and it appears that Column is always zero. Yuri

hi Devang and thanks for the tips, i finally managed to fit all the pieces together into something that seems to work. It's probably not the best (or even correct!) way of doing it but here's a brief overview for reference: An instruction in the LLVM IR gets converted into an SDNode in the DAG then later into a MachineInstr. I'd already attached my own MDNodes to IR instructions I

I notice that there's a lot of inconsistency in the various LLVM classes with respect to convenience methods. Here's some examples: For creating GEPS, IRBuilder has: CreateGEP (2 overloads) CreateInBoundsGEP (2 overloads) CreateConstGEP1_32 CreateConstInBoundsGEP1_32 CreateConstGEP2_32 CreateConstInBoundsGEP2_32 CreateConstGEP1_64 CreateConstInBoundsGEP1_64

(sorry for the duplicate Fred, I failed at reply-all the first time) On Wed, Oct 22, 2014 at 6:33 PM, Frédéric Riss <friss at apple.com> wrote: > > > On Oct 22, 2014, at 4:57 PM, David Blaikie <dblaikie at gmail.com> wrote: > > > > Just working on some of the gmlt+fission debug info stuff and I came > across a comment that might be relevant to reducing the