similar to: Attempt to use DomTreeBase on a CallGraph or CallGraphNode

Hi there, I'm currently writing an analysis (for now) pass for LLVM that kind of need some information from the CallGraph of the program. This info would be extremely easy to get if I could build the DominatorTree information about the CallGraph. I even checked out and saw the declarations of GraphTraits templates for CallGraph and CallGraphNode, which might indicate that all algorithms that

Hi all, I want to find all the called functions in each function, thus I iterate the calledFunctions of each CallGraphNode in CallGraph as follow: for (CallGraph::iterator it = CG->begin(); it != CG->end(); ++it) { CallGraphNode* node = it->second; for (CallGraphNode::iterator it2 = node->begin(); it2 != node->end(); ++it2) { Function* calledFunc =

Dear Ashutosh, Thank you, I can handle some indirect callSites by getFunction() of InvokInst and CallInst. However, when I am handling C++ programs, I found the calls of member functions are converted to some strange indirect calls. For example: table->truncate(sysTransaction); // from mysql are translated to the next complex llvm IR: _ZN8Database20getSystemTransactionEv.exit: ;

So, I won't know the called function statically, Right? -------------------------------------------- Qiuping Yi Institute Of Software Chinese Academy of Sciences On Wed, Jan 20, 2016 at 2:24 PM, Nema, Ashutosh <Ashutosh.Nema at amd.com> wrote: > Typically for C++ virtual function you will see an indirect callSite > (unless not de-virtualized). > > > > Regards, >

I am finding some weird behavior in the CallGraph, and am not sure what am I doing wrong. When trying to traverse nodes in the CallGraph I get stuck in nodes representing external functions. Take the following code: ----- #include <stdio.h> int main() { printf( "Hello World!\n" ); } ----- If I try to traverse the CallGraph using the following code: ----- CallGraph CG

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...

On Fri, Aug 17, 2012 at 4:23 PM, Jianfei Hu <hujianfei258 at gmail.com> wrote: > Hello, > I want to traverse CallGraph > > code segment: > > > virtual void getAnalysisUsage(AnalysisUsage &AU) const > { > AU.addRequired<CallGraph>(); > } > > virtual

Hello, I want to traverse CallGraph code segment: virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<CallGraph>(); } virtual bool runOnModule(Module &F) { CallGraph &g = getAnalysis<CallGraph>(); for ( CallGraph::iterator i = g.begin(); i != g.end(); i++) { errs()<<"-----------------\n";

Hello, I try to make a big CFG (control flow graph) by combining all the CFG-s from all the functions of a module. I still have one problem : I want to get the links between functions. For CFG-s, I used CallGraphNode->second->getFunction, then Function_iterators and succ_iterators, so I have all the links between BBs. Now, the questions is how do I link BBs from different functions? I can

Hello: We are working with LLVM-3.1 and we have a problem.This is the code we have executed: virtual void getAnalysisUsage( llvm::AnalysisUsage & info ) const { info.addRequired<CallGraph>(); ... } ... virtual bool runOnModule( Module & M ) { ... CallGraph &CG = this->getAnalysis<CallGraph>(); CallGraphNode *cgn; unsigned nref;

Hi, On 26/04/13 11:19, Alexandru Ionut Diaconescu wrote: > Hello, > > I try to make a big CFG (control flow graph) by combining all the CFG-s from all > the functions of a module. I still have one problem : I want to get the links > between functions. > > For CFG-s, I used CallGraphNode->second->getFunction, then Function_iterators > and succ_iterators, so I have all

Thanks for the response. I looked and I cannot see what exactly I need. I saw getCalledFunction() so I need CallSite CS(cast<Value>(II)) where II is a basic block iterator, so an instruction. It seems not easier than the "unelegant" version....if I am still at the Instruction level... I need a method that takes from a "leaf" basic block from a function (Maybe there is

Hi, On 26/04/13 13:17, Alexandru Ionut Diaconescu wrote: > Thanks for the response. > I looked and I cannot see what exactly I need. I saw getCalledFunction() so I > need CallSite CS(cast<Value>(II)) where II is a basic block iterator, so an > instruction. It seems not easier than the "unelegant" version....if I am still > at the Instruction level... the call graph

Hi All, It seems that functions in callgraph remove all metadata info, such as dbg. Can I keep metadata in callgraph? Best, Haopeng

Dear Simon, Kevin is correct; as far as I can tell, there is no method of getting the functions calling a given function. Instead, you have to start at the main() function and search for the function using a depth-first or breadth-first search. What may make sense is to build a new data structure that has nodes that point from callees to callers once and then use that for your queries.

Hi Simon, > From: Simone Atzeni <simone.at at gmail.com> > To: John Criswell <jtcriswel at gmail.com> > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Walking thru CallGraph bottom up > Message-ID: <318EBA41-2040-4EFE-B330-5813C817C2A2 at gmail.com> > Content-Type: text/plain; charset="windows-1252" > > I think I got it and the example is

On 2/25/15 10:51 AM, Simone Atzeni wrote: > Thanks John. > > I guess I will use a ModulePass, so when I am implementing the “runOnModule” function, > do I have to loop through all the functions, for each functions all the BasicBlocks and for each BasicBlock all the instructions If you know the Instruction, you can get it's basic block using Instruction::getParent(), and then get

Thanks John. I guess I will use a ModulePass, so when I am implementing the “runOnModule” function, do I have to loop through all the functions, for each functions all the BasicBlocks and for each BasicBlock all the instructions or given the Module I have to call the CallGraph directly? Is there an example out there? I can’t find anything. Thanks. Simone > On Feb 24, 2015, at 13:29, John

Dear folks, I am trying to handle function pointers at call graph, and I found that the CallGraphSCCPass makes function pointers as external node, which is actually an empty CallGraphNode (NULL pointer)? If I want to distinguish the function pointer types in the call graph (and I also want the SCC order in CallGraphSCCPass), can I do that easily? Or I have to inheritate the

Hi All, I tried to use CallGraph in llvm by adding "AU.addRequired<CallGraph>();" in getAnalysisUsage function. But it reports an error: include/llvm/PassAnalysisSupport.h:56:39: error: ‘ID’ is not a member of ‘llvm::CallGraph’ return addRequiredID(PassClass::ID); How to use it correctly? Thanks, Haopeng