similar to: [LLVMdev] line number of loop header

Hi, I want to retrieve a function from a source line-number, is this something possible to achieve? I tried the following code snippet with LLVM-7 but it doesn't seem to workhttp://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend <http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend:> Is there specific documentation I can refer to implement this? Thanks -- *Rtr. PP

Hi, I found the following at http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend: if (MDNode *N = I->getMetadata("dbg")) { // Here I is an LLVM instruction DILocation Loc(N); // DILocation is in DebugInfo.h unsigned Line = Loc.getLineNumber(); StringRef File = Loc.getFilename(); StringRef Dir = Loc.getDirectory(); } Does this also

On Jul 6, 2010, at 10:44 PM, Guoliang Jin wrote: > I found the following at http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend > : > if (MDNode *N = I->getMetadata("dbg")) { // Here I is an LLVM > instruction > DILocation Loc(N); // DILocation is in > DebugInfo.h > unsigned Line = Loc.getLineNumber(); > StringRef

Thanks for your help. I took a look at http://llvm.org/docs/SourceLevelDebugging.html and it seems like this doesn't give you much in the way of line number information. If you know what source line you are interested in then you can set a breakpoint, but suppose you want to know the line number in the source code for some arbitrary bytecode instruction. In my particular case, I have a pass

Not sure what you tried/how it didn't work - could you explain more? You could scan through all the llvm::Functions in an llvm::Module and look at the debug info associated with them (getSubprogram) then check the location of that debug info. - Dave On Tue, May 15, 2018 at 12:46 AM Ridwan Shariffdeen via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi, > > I want to

The debug intrinsics are intended for that. Please see: http://llvm.org/docs/SourceLevelDebugging.html for the details. Please note that this is being worked on actively Jim Laskey at Apple. He's working to get these intrinsics to generate DWARF output so that LLVM generated code can be used with a debugger. However, the intrinsics can be processed in whatever way you'd like via an LLVM

Is there a way, using llvm, to relate LLVM instructions to the souce code statements (or line numbers) that they were generated from. So if compile some file test.c and get some binary test.bc can I relate statements in test.bc with source code line numbers in test.c and if so how would I go about doing that. Thanks for your time. - John -------------- next part -------------- An HTML attachment

On Sat, 8 Apr 2006, Jim Laskey wrote: > If you look at the stoppoint calls you'll see that you can find the line > number and if you follow the compile unit argument on the call you will find > the file. The byte codes that follow the call would have been generated by > the code on that source line. I'd suggest an approach like this: Given an instruction in the a basic

John, If you look at the stoppoint calls you'll see that you can find the line number and if you follow the compile unit argument on the call you will find the file. The byte codes that follow the call would have been generated by the code on that source line. -- Jim On Apr 8, 2006, at 5:33 AM, John Trimble wrote: > Thanks for your help. I took a look at http://llvm.org/docs/

Hi Eli, Could you tell me how to extract the variable name? The reason I want to do it at the IR level is because I have more information at this stage, such as, constant propagation and back edges. Cheers, Zheng On 5 April 2010 21:51, Eli Friedman <eli.friedman at gmail.com> wrote: > On Mon, Apr 5, 2010 at 1:19 PM, Zheng Wang <jason.wangz at gmail.com> wrote: >> Hello,

On 7/7/2010 3:08 PM, Trevor Harmon wrote: > On Jul 6, 2010, at 10:44 PM, Guoliang Jin wrote: > >> I found the following at >> http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend: >> if (MDNode *N = I->getMetadata("dbg")) { // Here I is an LLVM >> instruction >> DILocation Loc(N); // DILocation is in >>

I get it now, I can't believe I didn't understand that before. Thank you all for your help! - John On 4/8/06, Chris Lattner <sabre at nondot.org> wrote: > > On Sat, 8 Apr 2006, Jim Laskey wrote: > > If you look at the stoppoint calls you'll see that you can find the line > > number and if you follow the compile unit argument on the call you will > find >

Hi there, I want to get input and output values from a loop. For this I am doing something like this: DominatorTree &DT = getAnalysis<DominatorTreeWrapperPass>().getDomTree(); CodeExtractor Extractor(DT, *L); Extractor.findInputsOutputs(inputs, outputs); When I print the input and output values for the following test code: void aFunc(void) { int sum=0;

Hi All,   int global; int func( int t) {    //scope 1   {      ....   } <-----   return x; }   For the above code, i want to collect endline (indicated by <---) for the scope. Can we get this information from the Dwarf Information in llvm 2.9 ?     Thanks & Regards, Pankaj -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi,   My problem definition is to collect "end line" for each scope (i.e. start and end line for a scope). I need to dump this information while emitting target code for an architecture. Though I understand that scoping details are not modeled in LLVM. Reference: http://llvm.org/docs/SourceLevelDebugging.html#format_common_lifetime   There are 2 classes I am referring, viz, DIScope and

Hello everybody, I want to get the line number of an instruction (and also of a variable declaration - alloca and global). The instruction is saved in an array of instructions. I have the function:     Constant* metadata::getLineNumber(Instruction* I){         if (MDNode *N = I->getMetadata("dbg")) { // this if is never executed             DILocation Loc(N);             unsigned

Hi, I would like to know how much effect these stoppoint calls have on the optimization of the bytecode? DOes insertion of debugging info cause opportunities for optimization (especially interprocedural dead code elimination and interprocedural constant propogation) to be reduced? The -g code is not very readable, so I am not able to confirm this by my own experiment. Thanks! Nikhil On Sat,

Pankaj, On Oct 3, 2011, at 4:36 AM, Pankaj Gode wrote: > Hi All, > > int global; > int func( int t) > { > //scope 1 > { > .... > } <----- > return x; > } > > For the above code, i want to collect endline (indicated by <---) for the scope. Can we get this information from the Dwarf Information in llvm 2.9 ? > If there is no code

Hi,   The link and the information shared was helpful.   I will make my problem definition more clear. While I am "asm printing" target code, I also want to emit scope related information. Scope related information includes, - for each scope, start line, end line, start column, end column and - scope heirarchy. As scope is delimited by "{" and "}" (for an input

Hello I'm wandring to know how many times a block is executed inside a loop ? knowing that I can't use getSmallConstantTripCount() because the number is unkown "for (i=0;i<N;i++) for example" I'm using a Function pass for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) { if (Loop *L = LI->getLoopFor(BB)) { if (L->getHeader() ==