search for: classllvm_1_1valu

..._1BinaryOperator.html#a073c092ce74a122e898e435e60e84599> BinaryOperator <http://llvm.org/doxygen/classllvm_1_1BinaryOperator.html> *BinaryOperator::CreateNeg <http://llvm.org/doxygen/classllvm_1_1BinaryOperator.html#a073c092ce74a122e898e435e60e84599>(Value <http://llvm.org/doxygen/classllvm_1_1Value.html> *Op, const Twine <http://llvm.org/doxygen/classllvm_1_1Twine.html> &Name,01824 BasicBlock <http://llvm.org/doxygen/classllvm_1_1BasicBlock.html> *InsertAtEnd) {01825 Value <http://llvm.org/doxygen/classllvm_1_1Value.html> *zero = Co...

...I am doing a project that requires counting the number of uses of a value only in all dominated blocks in a function. I checked the manual for llvm::User class, but only get this unsigned <http://llvm.org/test-doxygen/api/classunsigned.html> getNumUses <http://llvm.org/test-doxygen/api/classllvm_1_1Value.html#a380559e99b47632a34f74de7c1d03cc0> () const This gives me all the uses of a value. Is there any simple way, like an API to do this? Or I have to manually write a method to traverse dominated basic blocks and count the number of uses? Thanks, Tianyu Cheng -------------- next part --------...

Hi, I want to use llvm::Value::print to output the assembly strings for llvm::Instructions inside a rather large llvm::Module (linked module with lots of types/...). I started with plain ::print and switched over to http://llvm.org/docs/doxygen/html/classllvm_1_1Value.html#a04e6fc765eeb0c4c90ac5d55113db116 with a ModuleSlotTracker I pass in myself to avoid some complexity. Still now I have the issue that the TypeFinder::run and related that is done internally by each print still is 99% of my program runtime. (at least perf tells me that) Is there any clever...

...g to create a new *Store* instruction and inserting it to LLVM IR (.ll) file. I found the following constructor in LLVM Manual: StoreInst::StoreInst <http://llvm.org/docs/doxygen/html/classllvm_1_1StoreInst.html#aa2a72f9a51b317f5b4ab8695adf59025> (Value <http://llvm.org/docs/doxygen/html/classllvm_1_1Value.html> * Val, Value <http://llvm.org/docs/doxygen/html/classllvm_1_1Value.html> * Ptr, Instruction <http://llvm.org/docs/doxygen/html/classllvm_1_1Instruction.html> * InsertBefore ) I thought of using this. I don't know the meaning of the constructors arguments. What all values...

I am primarily interested in phi nodes and their induction variables, in ValueTracking file there is an analysis of them, but if the upper bound is inf, it is not working? 2017-08-07 11:41 GMT+02:00 Anastasiya Ruzhanskaya < anastasiya.ruzhanskaya at frtk.ru>: > So, it is not supported to determine by this instruction : %cmp = icmp slt > i32 %i.03, 99, > that %i.03 = phi i32 [ 0,

Hello Ether, I think it is referring to the Value class (captial V) whose documentation is found at http://llvm.org/doxygen/classllvm_1_1Value.html . It has to be a pointer because the Value class is a parent class to many many child classes. --Sam ----- Original Message ---- > From: ether zhhb <etherzhhb at gmail.com> > To: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu> > Sent: Thu, December 3, 2009 7:45...

Hi all, How can i find the instruction that uses the result of a load instruction. For example: %16 = load i32, i32* %ptr %add = add i32 4, %16 In this case, i would like to get the add instruction. Best, Mo -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160204/bdef6f63/attachment.html>

hi, i am building selectionDAG by my own code, but got a assertion fail said "SrcValue is not a pointer?". but since the comment above the SrcValueSDNode said: "SrcValueSDNode - An SDNode that holds an arbitrary LLVM IR Value." why the llvm value of SrcValueSDNode must be with PointerType? is that assertion necessary? thanks a lots. regards --ether

...se llvm::Value::print to output the assembly strings for >> llvm::Instructions >> inside a rather large llvm::Module (linked module with lots of >> types/...). >> >> I started with plain ::print and switched over to >> >> http://llvm.org/docs/doxygen/html/classllvm_1_1Value.html#a04e6fc765eeb0c4c90ac5d55113db116 >> >> with a ModuleSlotTracker I pass in myself to avoid some complexity. >> >> Still now I have the issue that the TypeFinder::run and related that >> is done internally >> by each print still is 99% of my program runtim...

Hello everyone, is there any way to replace an instruction inside LLVM that is more elegant than creating a new one, replacing uses and deleting the old one if I only want to modify the type? It is generally not a big deal, but the issue gets really messy if I am in the middle of iterating over uses and start deleting some of them... I hope I could describe my problem well enough ;) Regards,

...n/html/classllvm_1_1BasicBlock.html> *NewBB = Header->splitBasicBlock <http://llvm.org/docs/doxygen/html/classllvm_1_1BasicBlock.html#a19445f836d9e1ecb32cba27ec4338fff>(AfterPHIs,00215 Header->getName <http://llvm.org/docs/doxygen/html/classllvm_1_1Value.html#ad452febc1ac0b394876e640ec03ffa38>()+".ce");00216 00217 // We only want to code extract the second block now, and it becomes the new00218 // header of the region.00219 BasicBlock <http://llvm.org/docs/doxygen/html/classllvm_1_1BasicBlock.html> *OldPred = Header;00220...

Thank you! I wanted to use the right part of the instruction , %a = alloca i32, align 4 - %a here , but I don't quite understand the difference between Instruction object and Value object of a, which is used further , and in this case : %1 = alloca i32, align 4 - I also wanted to use %1 and in this case the only possibility is Instruction object. 2017-07-20 15:32 GMT+02:00 Evgeny Astigeevich

Hi I would like to initialize a global variable to the address of a function. Looking at how clang compiles the C code below, i see @main_ptr = global i8* bitcast (i32 ()* @main to i8*), align 8 but how do i generate i8* bitcast (i32 ()* @main to i8*), align 8 in LLVM IR and use it as initializer to a GlobalVariable. I know i will need to use the bitcast instruction. but as far i as i

Thanks Duncan, Yes, it is a ConstantExpr! Thank you! Now trying to find a clue in ConstantExpr's functions to get that string :-) Regards, Welson On Thu, Jan 26, 2012 at 9:04 PM, Duncan Sands <baldrick at free.fr> wrote: > Hi Welson Sun, > > > Hi, if I have some LLVM code like this: > > > > @.str = private unnamed_addr constant [7 x i8]

...ction be changed, but the instructions using it must be changed as well. In that case, you will need to iterate over the uses of the old instruction and create a new instruction for each use, making whatever changes to each use are necessary for your transform to work. See http://llvm.org/doxygen/classllvm_1_1Value.html for more information on replaceAllUsesWith(). -- John T. > I hope I could describe my problem well enough ;) > > Regards, > Ralf > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu &gt...

...3 GMT+02:00 Evgeny Astigeevich <Evgeny.Astigeevich at arm.com>: > You think in terms of the textual representation of IR and are trying to > work on IR in these terms. > > See: > > http://www.llvm.org/docs/ProgrammersManual.html#coreclasses > > http://llvm.org/doxygen/classllvm_1_1Value.html > > > In the LLVM representation Value is a thing which can be used as an > operand to instructions. In API there is no such thing as the named right > part. An instruction itself is a value which is produced as result of > execution of the instruction. Look at the example:...

Hi Nick, I parsed your message again carefully and did some experiments. I guess the: for (User::op_iterator i = I->op_begin(), e = I->op_end(); i != e; ++i) { } iterates over the operands of the instruction "I", which are as you said, *other* instructions. But if I want to get other information about the instruction, say the type of the operands, then I still need to figure

Hi all, When writing my custom passes, I often emit log messages to llvm::errs() like so: llvm::errs() << "Could not handle instruction: " << *Inst << std::endl; where Inst is a pointer to an Instruction. I've profiled my code and found that this way of printing an Instruction takes a very long time: indeed, it is the bottleneck of my pass. Of course, I could

ivtm wrote: > Hey Oscar, > > I want to extract information from the instruction. > > Think writing a simple interpreter. > > I already have the CallInst instance (described above in the message). > > Via ci->getOperand(1) say I can get the 'i32 8' parameter and I can get the > 'i32' and '8' separately as Nick described. > > But I