similar to: [LLVMdev] CDFG (Controil Data Flow Graph) with LLVM

Hi John, My project is somewhat inbetween, but closer to the latter. If you are doing something related to synthesis, have you checked xPilot from UCLA? Search "llvm" in this paper <http://www.icims.csl.uiuc.edu/~dchen/xpilot-TechCon2005.pdf> Anyway, thanks for the information! :-) Wenhao On Tue, Mar 3, 2009 at 6:30 AM, <llvmdev-request at cs.uiuc.edu> wrote: > >

Hi, Does anyone know any tool that can help generate a control/data flow graph (CDFG) for LLVM IR programs? The opt -view-cfg and related commands can visualize a program as a control flow graph. But how can I embody data flow information into that graph? Your help will be greatly appreciated! Thanks, Wenhao Jia -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi Andrew, Thanks for the response. That helps a lot. So that means I have to implement a pass, right ? Sorry for dumb question. I just started LLVM today.   =========================================== Phone : 82-42-860-1838 Fax : 82-42-860-6790 Cell Phone: 82-10-7599-1981 =========================================== --- On Thu, 6/30/11, Andrew Trick <atrick at apple.com> wrote:

Unless someone else responds with "I've already done that" then you need to implement a pass. It's probably something you want to customize to your needs anyway. -Andy On Jun 30, 2011, at 11:50 PM, janarbek wrote: > Hi Andrew, > Thanks for the response. That helps a lot. > > So that means I have to implement a pass, right ? Sorry for dumb question. I just started

Hi All, I am reposting my question again since i think my question was not clear enough. I am wondering is it possible to generate Control Data Flow Graph from C using LLVM? or is it possible to get web-like structure of C code using llvm / Thanks in advance, Any comment suggestion would be appreciated. Jan Ma.   =========================================== --- On Thu, 6/30/11, janarbek

On Jun 30, 2011, at 10:05 PM, janarbek wrote: > > Hi All, > I am reposting my question again since i think my question was not clear enough. > I am wondering is it possible to generate Control Data Flow Graph from C using LLVM? or is it possible to get web-like structure of C code using llvm / > > Thanks in advance, > Any comment suggestion would be appreciated. > >

Hi All, I am new to LLVM. I want to generate a Dataflow graph or Control Dataflow graph from C code using LLVM. I have no idea how to do it in LLVM. I tried to use analysis and transform passes such as "-dot-cfg" but it doesn't give what I want. I want to generate a node for each operation in C code.  Thanks in advance.JM. -------------- next part -------------- An HTML attachment

Thanks  Kryzstof, I will look at it. Is there any class that I should look at it ? What about Dataflow.h ? Since I am kind of new, I want to know which classes can help me quicker.    =========================================== Phone : 82-42-860-1838 Fax : 82-42-860-6790 Cell Phone: 82-10-7599-1981 =========================================== --- On Sat, 11/3/12, Krzysztof Parzyszek

On 11/3/2012 6:35 PM, janarbek wrote: > Hi All, > > I want to build a DFG from instructions in a basic block. I couldn't > find a function to find the depenencies between instructions. How can i > do that ? Look into ScheduleDAG. It's a part of the scheduling infrastructure, but you can use it to build a dependency graph. -Krzysztof -- Qualcomm Innovation Center, Inc.

Hi All, I want to build a DFG from instructions in a basic block. I couldn't find a function to find the depenencies between instructions. How can i do that ? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121103/cd67e510/attachment.html>

Dear professor John Criswell I would like to implement a new instruction scheduling algorithm so that I need the Data flow graph(DFG) is input of the algorithm. Thanks Huy From: John Criswell [mailto:jtcriswel at gmail.com] Sent: Sunday, June 19, 2016 1:25 AM To: huyite; llvm-dev at lists.llvm.org Subject: Re: [llvm-dev] data flow graph Dear Huyite, Your question, as

Hi, is there a way to dump control flow graph dot file only for a specific function name? -dot-cfg option for opt command seems to dump cfg dot files for all functions. -ananth  -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131121/a1d81904/attachment.html>

Dear all, Please help me to generate DFG(Data flow graph) in LLVM. Best regards, Huy Mobile: +84942976091 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160616/29fea8f8/attachment.html>

This isn't by itself too difficult, as I have done something similar recently, but does require some modifications of LLVM. The basic algorithm is simple: For each ISA instruction, create a new MachineInstr and add it to the current MachineBasicBlock. At each branch instruction, add it to the current MBB and add it to a list and create a new MBB. After creating your list of MBB, iterate

Hi all, I know there is an opt pass to generate CFG in dot format, and I also know about the --extract-blocks pass to make basic blocks as functions, but neither gives me exactly what I want. I wanted to have a flow graph of all basic blocks inside a function. If possible, of all functions, as one-entry/one-exit sub-graphs, probably like Poly would like, so I can print the sequence of calls

Hi, there! There are situations where a machine basic block has to be split into two machine basic blocks, e.g., to place a constant pool entry or to fix a conditional branch so that its target is within its range (https://reviews.llvm.org/D38918). However, it doesn't appear to be straightforward how the control flow graph should be updated when a machine basic block is split,

On Fri, 17 Jun 2005, Manvi Agarwal wrote: > Hi Chris, Hi. FYI, it's usually better to email the llvmdev list with generic llvm questions. > Is it possible to get control flow graph of the application with the llvm > infrastructure in terms of basic blocks? Yes, given a BasicBlock*, you can iterate over the pred/succ blocks in the CFG like this: #include

I am working on implementing break/continue and the flow control graphs that I am seeing are having all sorts of weird flow control that does not necessarily exist in the IR representation. For, example, a simple code segment that is a while loop w/ a continue ends up generating a CFG that is two while loops with one embedded inside each other. I've attached the dot files and the IR code. Any

> The right way to update the CFG very much depends on how you're > transforming it. I would like to export the CFG for control flow checking. Theoretically, it should be possible for a compiler to know every target of every control flow instruction, except for computed targets that are not known at compile-time. When a machine basic block is split between two branches, as shown below:

I am currently attempting to learn how to use LLVM for control flow graph extraction on linux (Ubuntu). Basically, I need to be able to break down specific basic functions blocks from assembly code, and use it to make a CFG. Do any of you upstanding human beings have any knowledge or resources that could possibly assist me in this task? I apologize if this is a very basic question. I have already