search for: getprev

Hi, I switched to the upcoming version 2.0 branch and porting my code from 1.9. Thanks there is not a lot to do. I found that Instruction::getNext and Instruction::getPrev are private. Is this intentional? If yes, what would you recommend instead using them? Thanks, Ferad

...iterator instead.. On 5/11/07, Anton Korobeynikov <asl at math.spbu.ru> wrote: > Hello, Ferad. > > > I switched to the upcoming version 2.0 branch and porting my code from > > 1.9. Thanks there is not a lot to do. I found that > > Instruction::getNext and Instruction::getPrev are private. Is this > > intentional? > Yes, incorrect usage of them caused hard-tracking bugs (e.g. calling > getNext() on terminator returns you the last "dummy" instruction in the > list, and so on). > > > If yes, what would you recommend instead using them? &g...

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 option. On Thu, Dec 20, 2012...

Hi Ferad! the change has been made with <http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of- Mon-20070416/047931.html> You have to use iterators now and "operator ++" etc. Hope this helps, cheers, Gabor

I may be mistaken as I just took a quick look, but in ilist_node the function "getPrevNode()" actually calls a method on the previous node: NodeTy *getPrevNode() { NodeTy *Prev = this->getPrev(); // Check for sentinel. if (!Prev->getNext()) return 0; return Prev; } http://llvm.org/docs/doxygen/html/ilist__node_8h_source.html#l00058 Try checking if current-...

...tructions before and after all loops. To do this, I've added a simple function as follows: void addToAllLoops(Loop * IL) { addToAllLoops(IL); BasicBlock * PH = IL->getLoopPreheader(); Instruction *InstrCallPre = new CallInst(PrintLoopBegin, "", PH->getPrev()); return; } The function added is trivial: void printloopbegin() { fprintf (stderr,"Loop Beginning\n"); } The function is called from runOnFunction() as follows: PrintLoopBegin = F.getParent()->getOrInsertFunction("printloopbegin",...

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 "...

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 head. I don't see any method > like hasPrevNode. > It can be a weird problem because "current->getPrevNode()" is indic...

...ne element. for (Function::iterator II = F.begin(), EE = F.end(); II != EE; ++II, ++ii) { BasicBlock* BB=II; if (BB->getTerminator()) { Instruction* current = BB->getTerminator(); Instruction* previous; errs()<<"AAA\n"; if(*current->getPrevNode()*) { errs()<<"BBB\n"; previous = current->getPrevNode(); ok=1; } if (ok){ errs()<<"CCC\n"; ........ It does print AAA, but then I have the segfault. So when I am evaluatin...

...ould be able to use -fno-builtins to disable > this. Thanks, that did the trick. Some final remarks (my app works again :-)): * llvm.va_start and similar intrinsics now have an i8* arg instead of an sbyte** * For some reason the Arguments of a Function are now circularly linked, i.e. getPrev()/Next() does not yield 0 when the first Argument is reached, but jumps back to the last one. I experienced this with a loop I was using to find out the index of an Argument. It relied on the fact that getPrev() would eventually give 0, which worked in previous LLVM versions. On a related...

...sable >> this. > > Thanks, that did the trick. > > Some final remarks (my app works again :-)): > * llvm.va_start and similar intrinsics now have an i8* arg instead > of an sbyte** ok > * For some reason the Arguments of a Function are now circularly > linked, i.e. getPrev()/Next() does not yield 0 when the first > Argument is reached, but jumps back to the last one. I experienced > this with a loop I was using to find out the index of an Argument. It > relied on the fact that getPrev() would eventually give 0, which > worked in previous LLVM versions. A...

On Sat, 19 May 2007, Anton Korobeynikov wrote: >> * It seems that a C-call like printf("---\n") is transformed to puts >> ("---") in the LLVM IR instead of keeping it a printf. What are the >> circumstances in which this happens? Do other similar conversions >> occur? Can this be turned off (lower optimisation level?)? Manually >> replacing the

Hello, Bram > * It seems that a C-call like printf("---\n") is transformed to puts > ("---") in the LLVM IR instead of keeping it a printf. What are the > circumstances in which this happens? Do other similar conversions > occur? Can this be turned off (lower optimisation level?)? Manually > replacing the puts-calls by a printf-call is not

...tachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090116/18390546/attachment.html> -------------- next part -------------- /usr/local/llvm/src/include/llvm/ADT/ilist.h: In static member function 'static NodeTy* llvm::ilist_nextprev_traits<NodeTy>::getPrev(NodeTy*) [with NodeTy = llvm::Instruction*]': /usr/local/llvm/src/include/llvm/ADT/ilist.h:268: instantiated from 'NodeTy* llvm::iplist<NodeTy, Traits>::getTail() [with NodeTy = llvm::Instruction*, Traits = llvm::ilist_traits<llvm::Instruction*>]' /usr/local/llvm/src/inclu...

Hi all, I am finding a SEGFAULT in one of my passes when using getPrevNode on an instruction that is the only one in a BasicBlock. I was expecting getPrevNode to return 0 in that case (as per docs), but it breaks. I guess the code in in ilist_node.h: NodeTy *getPrevNode() { NodeTy *Prev = this->getPrev(); // Check for sentinel. if (!Prev->getNext())...

Hi all, I've now got my LLVM-based model checker more or less working, but I'm seeing something a bit strange happening. As you may remember, I started with the lli code and extended it considerably. I have retained something that looks vaguely like the original ExecutionContext stack, though I now have one stack per thread, and the whole data structure is implemented with custom

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 =

Hi,   For a custom target, there is a pass to perform memory dependence analysis, where, i need to get memory pointer for "load instruction". I want to check the pointer alias behavior. I am getting this by considering the memoperands for the load instruction.   For "load instruction", Machine Instruction dumps as below:   vr12<def> = LD_Iri %vr2<kill>, 0;

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