similar to: [LLVMdev] LLVM load instruction query

Duncan Sands <baldrick <at> free.fr> writes: > > Hi Anshul, > > > I am creating a pass that will pass loaded value by load instruction to an > > external function. > > I don't know how to do it.Please Help. > > your question is too vague for anyone to be able to help you. Add details, > for example provide the code for your pass. > >

Hi Anshul, > I am creating a pass that will pass loaded value by load instruction to an > external function. > I don't know how to do it.Please Help. your question is too vague for anyone to be able to help you. Add details, for example provide the code for your pass. Ciao, Duncan.

Ok, so there is a general segfault. You can use a tool for detecting seg fault, but better try to use the "return false" statement in your pass. I assume you have your code into runOnFunction or runOnModule. So check with return false where the program crashes. identify the statement that is causing the segfault. The most common segfaults in LLVM are due 1. reference a NULL pointer...put

Try : INITIALIZE a1 if you didnt. if (cpProf EXISTS){ CallInst* newInst = CallInst::Create(cpProf,a1,""); if (BB->getTerminator() && CI) BB->getInstList().insert((Instruction*)CI, newInst); On Tue, Mar 5, 2013 at 1:04 PM, Anshul Garg <gargaa24 at gmail.com> wrote: > CallInst* newInst = CallInst::Create(cpProf,a1,""); >

Hello Harris, Thank you for your answer. So it is there a way of annotating variables in Java Code, so I can see them into LLVM bytecode? Thank you ! On Mon, Jun 17, 2013 at 3:54 PM, Harris BAKIRAS <h.bakiras at gmail.com> wrote: > Hello Alexandru, > > No you did nothing wrong. > > We are using our own data structure to describe annotations in J3. So it > is normal

I think the better solution should be: LLVMContext& C = is->getContext(); Value *values[] = { ConstantInt::getSigned(Type::getInt64Ty(C), *scsr*), MDString::get(C, *"path"*) }; lnstr.setMetadata(*"your_analysis_name"*, MDNode::get(C, values)); So that you can take advantage of the type system of LLVM bitcode, and don't have to cast the integers from/to strings

Hello, Thank you for your answer. If I want to use then I have error: ‘NodeTy* llvm::ilist_half_node<NodeTy>::getPrev() [with NodeTy = llvm::Instruction]’ is protected error: ‘llvm::ilist_half_node<llvm::Instruction>’ is not an accessible base of ‘llvm::Instruction’ Do you know any other method to access the previous instruction of a terminator instruction? PS: back() is not an

I think I understood that, but what I mean is what is the function responsible to do mapping is it MapValue() in ValueMapper.h? Thanks for your help On 6 June 2013 09:54, Alexandru Ionut Diaconescu < alexandruionutdiaconescu at gmail.com> wrote: > Map every basic block from the CFG to a set of integers. The successors > from the CFG can be used to make the edges in your simplified

I solved by checking if(BB->size()>1) Thank you all for the help ! Now debugging the next segfault. On Thu, Dec 20, 2012 at 12:59 PM, Alexandru Ionut Diaconescu < alexandruionutdiaconescu at gmail.com> wrote: > getPrevNode<http://llvm.org/docs/doxygen/html/classllvm_1_1ilist__node.html#a77b897207ef0a1ae95c404695aed9a4b>() > Get the previous node, or 0 for the list

Hello everyone, I have an integer and I want to convert it to StringRef in order to set metadata. setMetadata->(StringRef, MDNode*); It is there a native LLVM way to do it? 1. In the llvm::APSInt Class is toString() method, which seems it is not for this purpose 2. itoa and string are not part of LLVM 3. stringstream is not part of LLVM 4. to_string is not part of LLVM 5. any casting method?

Hello everyone ! I followed http://stackoverflow.com/questions/4976298/modern-equivalent-of-llvm-annotationmanagerin order to get annotations from my target bytecode. All the examples that I give in the following is related to the code from that link. I have `__attribute__((annotate("DS"))) int f=0;` into the target C++ program and the related IR code: @.str = private unnamed_addr

Yes, it sounds good. I can try tomorrow. Thank you for your advice ! On Thu, May 2, 2013 at 5:43 PM, Logan Chien <tzuhsiang.chien at gmail.com>wrote: > I think the better solution should be: > > > LLVMContext& C = is->getContext(); > Value *values[] = { > ConstantInt::getSigned(Type::getInt64Ty(C), *scsr*), > MDString::get(C, *"path"*) > };

What do you mean by mapping to integers? On 5 June 2013 22:32, Alexandru Ionut Diaconescu < alexandruionutdiaconescu at gmail.com> wrote: > Why you don't map the basic blocks to integers and apply algorithms on the > integer graph? And construct your new CFG. > > > On Wed, Jun 5, 2013 at 10:27 PM, Rasha Omar <rasha.sala7 at gmail.com> wrote: > >> How

getPrevNode<http://llvm.org/docs/doxygen/html/classllvm_1_1ilist__node.html#a77b897207ef0a1ae95c404695aed9a4b>() Get the previous node, or 0 for the list head. I don't see any method like hasPrevNode. It can be a weird problem because "current->getPrevNode()" is indicating to "current" itself (the problem appears for the BB with only one element)? On Thu, Dec

I don't use a function for do the mapping, it may be MapValue(). If it does not work, alias an int identifier for each basic block. Be aware because basic block cannot have the same name (getName) in the same function, but they might have the same name being in different functions. Therefore, take into account the function name as well. Good luck On Thu, Jun 6, 2013 at 10:55 AM, Rasha Omar

But I don't want to map only basic blocks, I need too to map the edges "the whole CFG of the function" Save the CFG of the function in another memory address and call it for example orgCFG and change the CFG by referencing to the orgCFG Thank you for help and patience On 6 June 2013 10:59, Alexandru Ionut Diaconescu < alexandruionutdiaconescu at gmail.com> wrote: > I

What classpath implementation are you using ? GNUClasspath or OpenJDK ? Harris Bakiras On 06/17/2013 03:57 PM, Alexandru Ionut Diaconescu wrote: > Hello Harris, > > Thank you for your answer. So it is there a way of annotating > variables in Java Code, so I can see them into LLVM bytecode? > > Thank you ! > > > On Mon, Jun 17, 2013 at 3:54 PM, Harris BAKIRAS

Hi, I solved it. From the ConstantStruct you can call getOperand() multiple times, so "mine" as deep as you can. On Fri, Mar 1, 2013 at 1:41 PM, Alexandru Ionut Diaconescu < alexandruionutdiaconescu at gmail.com> wrote: > > Hi Sebastian, > > Thanks for the response. > > I already did this : > > I cast the entire annotated expression to Value*. Then, in

Hi Sebastian, Thanks for the response. I already did this : I cast the entire annotated expression to Value*. Then, in order to avoid ugly things like getAsString(), I check if V->getValueID() == Value::ConstantArrayVal in order to cast it to ConstantArray. Because it contains only array[0], I cast array0>getOperand(0) to ConstantStruct. Therefore, from ConstantStruct you can get all the

Hello, I followed the http://stackoverflow.com/questions/13852180/how-to-get-variable-definition-line-number-etc-using-dbg-metadatain order to get the line number definition for local variables (allocas), which works fine. But I need the same for globals. So I tried to hack the `findDbgGlobalDeclare()` method from http://llvm.org/docs/doxygen/html/DbgInfoPrinter_8cpp_source.html#l00062 . However,