similar to: [LLVMdev] ARM Media Instruction

Hi Kapil! LLVM both builds and runs fine on ARM Linux. I am running a public buildbot for the llvm project that are compiling and testing llvm on arm-linux daily and this machine are running Ubuntu Jaunty. http://google1.osuosl.org:8011/builders/llvm-arm-linux I have successfully compiled LLVM on ARM using GCC 4.3.3 on a Ubuntu Jaunty system and GCC 4.4 on a Ubuntu Karmic system. Do you use

The Compilation error I am getting: "Error while compiling ARMJITInfo.cpp.. Selected processor does not support fstmfdd sp!,{d0,d1,d2,d3,d4,d5,d6,d7}.... On Thu, Sep 24, 2009 at 8:45 PM, kapil anand <kapilanand2 at gmail.com> wrote: > Hi all, > > I have an ARM virtual machine with ubuntu and want to port LLVM over that. > In release documents, ARM is not in the list of

My god! I would love a branch predictor! It would simplify many aspects of my register allocator. Second, I am surprised it did not make it into the tree. Since more is being done with register allocation as a while "RegAllocBasic" was just put in, I hope this is looked at again. Do you have a working svn copy? Also, could you send me a copy/link to that '94 paper off the list

Hi all, I have an ARM virtual machine with ubuntu and want to port LLVM over that. In release documents, ARM is not in the list of supported platforms. I tried to compile LLVM on ARM platform and ran into an error. Has anyone tried to port LLVM onto ARM before? Is it going to require lots of changes? Thanks --Kapil -------------- next part -------------- An HTML attachment was scrubbed...

Hello Kapil, I have implemented a static profiler for LLVM as a google summer of code project in 2009. I wrote it for the 2.4 branch, but the implementation never made into the tree. I have recently ported it to LLVM 2.8, but I haven't tested it. You can take a look at the code from: http://homepages.dcc.ufmg.br/~rimsa/tools/stprof-llvm.patch The implementation is based on Wu's

You said it was expensive, but if you had to put a big-o estimate on it, what would it be? -Thanks Jeff Kunkel On Tue, Nov 2, 2010 at 8:54 PM, Andrei Alvares <logytech at gmail.com> wrote: > Hello Jeff, > > On Tue, Nov 2, 2010 at 9:17 PM, Jeff Kunkel <jdkunk3 at gmail.com> wrote: > > My god! I would love a branch predictor! It would simplify many aspects > of >

Thanks Andrei! I haven't read the paper. I would see whether this fulfills my requirements or whether I need to make any changes. --Kapil On Tue, Nov 2, 2010 at 12:43 PM, Andrei Alvares <logytech at gmail.com> wrote: > Hello Kapil, > > I have implemented a static profiler for LLVM as a google summer of > code project in 2009. I wrote it for the 2.4 branch, but the >

Hello Jeff, On Tue, Nov 2, 2010 at 9:17 PM, Jeff Kunkel <jdkunk3 at gmail.com> wrote: > My god! I would love a branch predictor! It would simplify many aspects of > my register allocator. The branch predictor of the implementation is not as accurate as the one from the paper, but it is close enough. Unfortunately, the branch predictor is a very expensive pass, because it relies on

Hi Jeff, There is an algorithm to build the dominator tree that is O(n2), where n is the number of nodes on the control flow graph. I believe exists another that is linear, but I don't which one of them is implemented in LLVM. The problem is that the branch predictor requires post dominance information. None of the LLVM basic passes require post dominance information (AFAIK), hence it is

Specifically, I need a way to represent indirect branch instruction (in binary) as an equivalent LLVM instruction. With switch instruction , I would have to list all the possible targets and then initialize the corresponding instruction. I was just thinking whether it might be possible to have some kind of indirect branch where label is a "variable" and not an explicit label present in

Hi all, Does LLVM infrastructure contain implementation of any static profiling algorithm apart from "Spill-Weight" calculation present in Live Intervals class? The future work page does suggest implementation of some "static profiling" algorithms to make an educated guesses about the relative execution frequencies of various parts of the code. Thanks --Kapil --------------

Hi, I am trying to natively compile LLVM on a ARM virtual machine ( which I am running through QEMU) but getting the error as mentioned in previous mail. VM is running ARM926 which according to ARM architecture, has vfp support. Do some changes need to me made in LLVM distribution to make it run on ARM platforms Thanks --Kapil On Fri, Sep 25, 2009 at 5:16 AM, Xerxes Rånby <xerxes at

On Tue, Nov 2, 2010 at 12:28 AM, kapil anand <kapilanand2 at gmail.com> wrote: > Hi all, > > Does LLVM infrastructure contain implementation of any static profiling > algorithm apart from "Spill-Weight" calculation present in Live Intervals > class? The future work page does suggest implementation of some "static > profiling" algorithms to make an

Hi, I was thinking about the ways to represent indirect branch in LLVM. It seems that "Switch instruction" is the only way to logically represent indirect branch inside LLVM. Is there any other easier way to represent indirect branch in LLVM? Thanks Kapil -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I have been working on implementing new analysis for a LLVM module. For that, I need that Call Graph of the module. Inside the CallGraph file, the constructor has been declared "protected" hence I can't define its instance and thus use the CallGraph for further analysis. So, what are the ways of building and using Call Graph of a module. Do I need to make my new analysis as

Hi, I have made my optimization as an extension of ModulePass as suggested in last mail. I included "addRequired<CallGraph>" in getAnalysisUsage function. The application compiles fine but while linking, I get following errors: "undefined reference to llvm::CallGraphLinkVar" "undefined reference to llvm::CallGraph::ID The above error is at point where I refer to

Hi Gordon, I am trying to represent ARM instruction in LLVM. In ARM ISA, PC is itself a General Purpose Register and we can have following kind of instruction R3 = ADD PC, R2 Since label in LLVM corresponds to current position and thus is like a logical Program Counter. I was trying to implement the above instruction by using label as an arguement to LLVM Add instruction, based on the

On Wed, Jul 23, 2008 at 5:57 PM, kapil anand <kapilanand2 at gmail.com> wrote: > Hi, > > I was thinking about the ways to represent indirect branch in LLVM. It seems > that "Switch instruction" is the only way to logically represent indirect > branch inside LLVM. > Is there any other easier way to represent indirect branch in LLVM? Yeah, that's essentially

On Wed, Aug 20, 2008 at 9:47 AM, kapil anand <kapilanand2 at gmail.com> wrote: > Hi, > > I have been working on implementing new analysis for a LLVM module. For > that, I need that Call Graph of the module. Inside the CallGraph file, the > constructor has been declared "protected" hence I can't define its instance > and thus use the CallGraph for further

Hi Devang, GlobalModRefPass is also a ModulePass and it uses CallGraph Analysis. So, I think it should not necessary to extend CallGraphSCCPass to use CallGraph information. Module Pass shoule be sufficient... --Kapil On 10/8/08, Devang Patel <dpatel at apple.com> wrote: > Hi Kapil, > > On Oct 8, 2008, at 10:19 AM, kapil anand wrote: > >> Hi all, >> >> I