similar to: [LLVMdev] llvm segfault Instruction::getOpcode

Hello everyone, I encounter a segfault problem in my LLVM function pass. I think the problem is that I dereference an uninitialized pointer from an array of Instruction* elements which results in undefined behavior. The array is : Instruction** ifsInstrArray = new Instruction*[100]; The problem appears only sometimes (during runOnFunction && visiting BasicBlocks and Instructions).

Hello ! I want some piece of advice regarding a LLVM pass. My particular problem is: There is a method bool patternDC::runOnFunction(Function &F) { ... if ( CC->operEquiv(icmpInstrArray[i], icmpInstrArray[j]) ) {...} ... } having the array elements of type Instruction* : http://llvm.org/doxygen/classllvm_1_1Instruction.html The called method is bool

PS: I works when I use Instruction* prev = current->getPrevNode(); But then I have runtime error Stack dump that is very frequent... On Mon, Dec 17, 2012 at 6:20 PM, John Criswell <criswell at illinois.edu>wrote: > On 12/17/12 10:34 AM, Alexandru Ionut Diaconescu wrote: > > Hello, > > I am a beginner of LLVM. I am trying to move among the instructions of a >

On 12/17/12 10:34 AM, Alexandru Ionut Diaconescu wrote: > Hello, > > I am a beginner of LLVM. I am trying to move among the instructions of > a BasicBlock and I cannot. In this particular example, I try to get > the previous instruction of the end instruction. I am trying 2 methods: > > > > 1. I have the following sequence of code: > > bool

Hello, I am a beginner of LLVM. I am trying to move among the instructions of a BasicBlock and I cannot. In this particular example, I try to get the previous instruction of the end instruction. I am trying 2 methods: 1. I have the following sequence of code: bool patternDC::runOnBasicBlock(BasicBlock &BB) { ... if (BB.getTerminator()) { Instruction* current =

Hello everyone ! I have some problems of getting the index of a basic block. for (Function::iterator II = F.begin(), EE = F.end(); II != EE; ++II, ++ii) { BasicBlock* BB=II; I have segfaults or cannot use complex structures of several methods that I found in LLVM. Do you know how to use as simply as possible the methods found at : http://llvm.org/doxygen/Instructions_8h_source.html#l02136

ok.. you are right. I had not inserted the AllocaInst in the function. Thanks a lot for solving my problem yet again :) --- On Mon, 11/17/08, Eli Friedman <eli.friedman at gmail.com> wrote: > From: Eli Friedman <eli.friedman at gmail.com> > Subject: Re: Assertion `castIsValid(getOpcode(), S, Ty) && "Illegal BitCast"' faile > To: bhavi63 at yahoo.com

ok.. So I am trying out what you have suggested. I have written the below code which basically tries to write the constant 10 to a file. myprint is a function pointer to a function which takes char * parameter and writes it to file. Value *Ten = ConstantInt::get(Type::Int32Ty, 10); const Type *VoidPtrTy = PointerType::getUnqual(Type::Int8Ty); AllocaInst *AI = new AllocaInst(Type::Int32Ty); Value

Hi All; Is there a corrupt iputils rpm located on one or more of the CentOS update file servers? Here's an excerpt of the output of my yum update -y command: Updating : iputils-20121221-6.el7_1.1.x86_64 17/44Error unpacking rpm package iputils-20121221-6.el7_1.1.x86_64 error: unpacking of archive failed on file /usr/bin/ping: cpio: cap_set_file error:

CentOS Errata and Bugfix Advisory 2015:1145 Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-1145.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 0790a44cb39ff51f2ac43c3d246be72b89d51ca1d51dfa36264fef665cdb6cf8 iputils-20121221-6.el7_1.1.x86_64.rpm

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

I am seeing an assert when I compile the attached program with clang: $ clang -fno-strict-aliasing -target mips64el-unknown-linux -O3 -fomit-frame-pointer -S test1.c -o test1.ll -emit-llvm It asserts when LoopVectorize.cpp:506 is executed. It looks like it is complaining because it is trying to zero-extend an i64 (type Count->getType() returns i64) to an i32 (IdxTy). if (Count->getType()

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

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,""); >

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

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"*) > };

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

Dear all My dataframe has > 80,000 variables which I can not everytime load into R using *.txt files (read.table option), cost me time and sometime computer decomes not responsive. So I need a way to save my dataframe in my workdirectory as such. Execuse me if the problem is too simple. I tried the following, I do not know what is wrong with it: Example data: x <- 1:10 y <- 21:30 z

Hi Rasha, First, you should not erase that cloned function XD the idea is that your pass should create that new function, add it to a module (that could be the same one where the original function is, or another one that you could be creating if that is the case), and then just let it be: the pass manager should identify this new function (after your pass returned) and all the other analysis and

Hi I met a problem in asterisk, please see message in the following, the detail debug log is in the attached file. can someone help to point out where to correctly configure asterisk, thanks a lot ! BR/Scott -------> -- Executing [8690 at phones:1] Dial("SIP/IMSI466990004244439-00000014", "SIP/IMSI466974104638690") in new stack Really destroying SIP dialog '