similar to: [LLVMdev] Whole program alias analysis in backend

Hello, for one course at our Brno University of Technology, I made a presentation about languages used in LLVM during compilation. I think also other may find it useful, so I am sending it here, so you can add it somewhere on the web if you will would like to. It is not exactly a publication, rather lecture slides. Title: Languages Used in LLVM During Compilation Date: 30th April 2014

Hi, I know that backend processes one function at a time, > is it somehow possible to do there a whole program analysis, > or could you give me some guidelines? > There are different kinds of LLVM passes: Those that process a function at a time (FunctionPass), but also those that work on the call graph (CallGraphSCCPass) or on an entire module (ModulePass). These are described in the

I forgot to mention, that I use LLVM release 2.8, I did not try it with the latest revision, but I expect that I am rather doing something wrong than using non-implemented functions. On Tue, 15 Feb 2011 14:09:57 +0100, ihusar <ihusar at fit.vutbr.cz> wrote: > Hello, > > i need to fold constants, i found that a function ConstantFoldConstantExpression could be used, > however

Hello, i need to fold constants, i found that a function ConstantFoldConstantExpression could be used, however I am not able to make it fold anything. Could you please give me some advice, what I am doing wrong? My code looks something like this: //data layout is obtained from clang-generated code for triple arm-none-linux-gnueabi with added v32:32:32 const char* const TARGET_DATA_LAYOUT =

Adam, I just fixed this issue a few days ago. A version from the trunk should work for you. Cheers, Nadav -----Original Message----- From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of ihusar Sent: Tuesday, February 15, 2011 15:52 To: llvmdev at cs.uiuc.edu Subject: Re: [LLVMdev] How to use ConstantFoldConstantExpression? I forgot to mention, that I use

Hi everyone, I am trying to write a pass, that finds some instructions and replaces them with my intrinsics, but I am having problem understanding, how this should be done. Let's say I have this instruction: %tmp14 = load i32* getelementptr ([32 x i32]* @gpregs, i32 0, i64 28) and i need to read the load's operands and replace it by let's say: %tmp14 = call i32

On Thu, Jun 25, 2009 at 12:32 AM, ihusar<ihusar at fit.vutbr.cz> wrote: >                //now i need to create an instruction that represents a call to a intrinsic >                Function* FIntr = Intrinsic::getDeclaration(&M, Intrinsic::regread_i32); > >                // here it fails: void llvm::CallInst::init(llvm::Value*): >                //Assertion

Hi, On 06/10/2013 09:13 AM, Jonas Wagner wrote: > Hi, > > I know that backend processes one function at a time, > is it somehow possible to do there a whole program analysis, > or could you give me some guidelines? > > The backend introduces a MachineFunctionPass, from which point on it is only possible to run FunctionPasses, otherwise the machine functions

Hello gyus, I am working on a project, where we are trying to create a development environment for new ASIP processor design. Part of this project is a compiler generator, where we would like to generate C compiler from some instruction description. To keep it short, let's say, that in each instruction's semantics is described by some C code. What I would like to do is to compile this

On Thu, 04 Jun 2009 22:55:04 +0200, Pertti Kellomäki <pertti.kellomaki at tut.fi> wrote: > Hi Adam, > > John is right, the TCE stuff would be useful for you. Our > compiler targets a processor template that the designer can > populate pretty freely. The compiler then reads the architecture > description and creates an LLVM backend on the fly. > > Please don't

Hi, I am new in R and I have problem with reading this data file 0 TITLE Title 0 XLEGEND Legend -1 LABEL x 1 1 12 1 2 30 1 3 34 I want to read only lines starting with 1 (it indicates 1st plotting line) and create data set from second and third value on this row. Thank for advice Jakub Zlamal -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list

Hello all, I am new to llvm. I need to make some changes to the LR. The backend should modify the LR, but only after all the normal work and all the optimizations are done. Just before outputting the native code, LR is modified. I was wondering if I should implement the whole backend in order to achieve this or is it possible to implement a new pass and use that. Thanks ! Regards, Sachin

Hallo! While compiling Icecast (after successfully installing libshout, ogg, vorbis-tools, and libao on a Red Hat 8.0 system) I get the following error which causes the compilation to abort: --- quote: [...] make[2]: Entering directory `/usr/local/programs/icecast/src' source='yp.c' object='yp.o' libtool=no \ depfile='.deps/yp.Po' tmpdepfile='.deps/yp.TPo' \

Hi, I wrote a module pass that uses Alias Analysis. For this reason I added AU.addRequired<AliasAnalysis>() to function getAnalysisUsage and used getAnalysis<AliasAnalysis>() in my pass. I tried a few types of alias analyses and I discovered that only alias analyses which are ImmutablePasses are returned using getAnalysis<AliasAnalysis>(). Moreover, when I added both

Hello, I need to allow for some people to execute ssh with one shared private key for remote executing command on various machines. However, it is not possible to set group permissions for private keys and it is possible to have just one private key file for one user. Please, is it possible to add patches into openssh development tree like these, so that standard behavior of ssh is not changed,

Hi, I'm attempting to do some alias analysis & other memory inspection. I've written a pointless AliasAnalysis pass (that says everything must alias) to attempt to verify that my pass is getting picked up & run by opt. I run opt with: opt -load ~/Applications/llvm/lib/MustAA.so -must-aa -aa-eval -debug < trace0.ll I see my pass being initialized, but never being called (I see

Hi, I am newbie for LLVM. I need some help, I want to disassemble ARM binaries and perform some operation on LLVM IR and again back to generate ARM binary from modified ARM LLVM IR. How I can proceed for the same. Any tool or document will be highly appreciated. Thanks and Regards, Deep -------------- next part -------------- An HTML attachment was scrubbed... URL:

I don't reply to messages send to me in private. Best regards, Arjen -- Please keep list traffic on the list -------------- next part -------------- An embedded message was scrubbed... From: Rudolf Cejka <cejkar op fit.vutbr.cz> Subject: NUT and removed allowfrom/ACCEPT/REJECT support Date: Mon, 14 Sep 2009 19:23:17 +0200 Size: 3148 URL:

Dear list... In regards to recent upgrade in www.clamav.net to 0.88.3 and... ...as an example I've used this page to create a process where I can create my own clamav programs/stuff/etc... http://qmail.jms1.net/clamav-upgrade.shtml and so I would go to http://crash.fce.vutbr.cz/crash-hat/4/clamav/ and snag the source rpm that Petr made for Fedora 4. He hasn't updated yet (pretty sure

Hello How do I subscribe to samba-docs mailing list? The list is listed at http://samba.kn.vutbr.cz/samba/archives.html however it is not listed on the subscription page at http://lists.samba.org/mailman/ judging by grepping 'samba-docs' in the page and finding nothing. Cl<