similar to: [LLVMdev] LiveValues Pass

On Jun 2, 2009, at 5:54 AM, Rotem Varon wrote: > > This questions are on the LiveValues pass: > Do i need to set the "LiveValues" pass in the PassManager as a > prerequisite? if so how do i get the results ? Yes; it's a standard analysis pass. See http://llvm.org/docs/WritingAnLLVMPass.html for information about interactions between passes. > How do i get/use the

Hi, I tried to use the LiveValues pass without success. I did exactly as you wrote me but no luck for me. I am getting this error : [rotem at localhost ~]$ opt -load /home/rotem/Desktop/install/Release/lib/BBPass.so -BBPass < /home/rotem/Desktop/tmp/BBtry.bc > /dev/null Error opening '/home/rotem/Desktop/install/Release/lib/BBPass.so':

The pass you're referring to is in include/llvm/Analysis/LiveValues.h and lib/Analysis/LiveValues.cpp. It computes conservative approximations for specific liveness queries, rather than full livein/liveout information. It's intended to be used as a heuristic. Dan On May 30, 2009, at 3:51 PM, Evan Cheng wrote: > I believe Dan has added a pass to compute livein / liveout values. >

I've read that LiveValues has been removed from trunk. Did it bitrot or was simply removed because a replacement is available? If it's the former, what caused the bitrotting? If it's the latter, what's the replacement? (I've found LiveVariables but I'm not sure it can be used in a ModulePass). b.r. -- Carlo Alberto Ferraris <cafxx at strayorange.com <mailto:cafxx

LiveVariables is the optimized and tested way to get variable liveness information (it's used by register allocation). Unfortunately it requires a MachineFunction to work - so you'll either need to lower to one of the built-in targets or add your own target to acquire access to this pass. Andrew On 03/31/2011 12:28 PM, Carlo Alberto Ferraris wrote: > I've read that LiveValues

I believe Dan has added a pass to compute livein / liveout values. Evan Sent from my iPhone On May 30, 2009, at 5:03 AM, Rotem Varon <varonrotem at gmail.com> wrote: > Thank you. > > Is it possible to determine the liveout of the operands (see example > bellow) ? > > %5 = add i32 %4, %3 > > For '%5': i can simply use "

Thank you. Is it possible to determine the liveout of the operands (see example bellow) ? %5 = add i32 %4, %3 For '%5': i can simply use " i->isUsedOutsideOfBlock() " For '%3' and '%4' : this is the question ... >From your answer, is it possible to determine *which* value is liveout ( in binary instruction)? On Sat, May 30, 2009 at 2:57 AM,

" All of these answers are things you would do for an individual LLVM "Value". " I am sorry, but may be i am missing something here. In the previous email you suggested the function "bool isLiveOut(Instruction* I) ". So, if you please, explain how i can find out if a llvm::Value (not an llvm::Instruction) is live out or not. As i understand it, isLiveOut can help me

Hi all, At some points of my program, I would like to know if some LLVM values are live or not. For that, I'm using the LiveValues pass, which gives me methods such as : isLiveThroughBlock(Value * v, BasicBlock * b) isKilledInBlock(Value * v, BasicBlock * b) * If I understand well the code, dominator trees are used to compute the LiveThrough blocks. The definition of dominator in graph

Hello all Currently I want to use the accurate liveness information when writing a *target independent* FunctionPass based on LLVM. The one I can find is LiveValues, a FunctionPass. But it doesn't use classic dataflow equation and can only provide approximate and conservative result. The another one is LiveVariables which use classic data flow equation, but it comes from Clang's analysis

ether zhhb wrote: > hi John, > > sorry for reply so late. > > On Tue, Apr 13, 2010 at 10:38 PM, John Criswell <criswell at uiuc.edu > <mailto:criswell at uiuc.edu>> wrote: > > Devang Patel wrote: > > On Mon, Apr 12, 2010 at 6:41 PM, ether zhhb > <etherzhhb at gmail.com <mailto:etherzhhb at gmail.com>> wrote: > >

Hi, How can i know, if a value have uses outside of the current basic block (liveout), without iterating through all the basic block ? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090530/71681bc2/attachment.html>

Hi, Thank you for your answer. But let me get it straight, when i compile code with the llvm compiler, and my basic block pass is being processed, other passes are concurrently being processed ? Thanks. On Sat, May 23, 2009 at 7:01 PM, John Criswell <criswell at cs.uiuc.edu> wrote: > Rotem Varon wrote: > > Hi, > > > > Is there an API for getting (within a basic block

The patch below basically hammers out some ideas as to where I'd like to take the passmanager in LLVM. I've tried thinking things through, but I'm still a n00b, so some criticism would be more than welcome. =) Starting from line 191 down. If you're wondering why I created a patch, well that's because I found thinking in passmanagert.h the most productive. -- Regards.

Hi, Let say i am writing a code inside basic block pass and iterating all the instructions inside, and i encountered in this instruction : %3 = add i32 %1, 2 I want to convert this instruction to something like this: add R1, 2, R3 I know the opocode, but i what i need is, the operands %1 and 2 (in this example). I will be grateful if some one will tell me how to do so . -------------- next

Hi, I am running a basic block pass (and iterating through each instruction). Is it possible to convert the basic block instruction form llvm IR to x86 IRWITHIN the path ? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090510/9c636a9a/attachment.html>

Hi, I am new in the "Linux business" and i need to add an optimization to the LLVM compiler. I would like to know what is the bast way to debug (IDE) the LLVM compiler ? To be more precise, what is the equivalent to Microsoft visual studio on Linux platform? is it eclipse? I want features like: syntax highlight, go to def, etc. Thanks. -------------- next part -------------- An HTML

Hi, Is there an API for getting (within a basic block pass) the number of basic block in the program ? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090523/944abb17/attachment.html>

On Wed, Jun 17, 2020 at 07:55:05AM +0000, Philipp Schafft wrote: > Why does Icecast forward both requests? Very simple: Not all auth setups > require username:password. E.g. some are only for logging and > accounting. Some auth using the IP address, which is already known in > the first request. Indeed. One of my streams has requested geoblocking, which uses exactly the mechanism you

Thank you you answer. On Sun, May 10, 2009 at 12:48 AM, Eli Friedman <eli.friedman at gmail.com>wrote: > On Sat, May 9, 2009 at 8:37 AM, Rotem Varon <varonrotem at gmail.com> wrote: > > Its not x86 IR nor x86 assembly. I have x86 IR "like" instructions ( add > > R1, R2, R3 and so...) > >> > >> If it's really > >> x86