similar to: [LLVMdev] patch: CloneModule resets GlobalVariable address space

After cloning a Module with CloneModule, there doesn't seem to be any easy way to convert a Value pointing into the old Module to a Value pointing into the new one. The CloneModule implementation already has to keep such a mapping internally, so I've written a patch that exposes it as a second inout parameter to CloneModule(), with the one param version being a simple wrapper for backward

Sorry if this has been discussed already... I am trying to understand whether there is an underlying reason why llvm::CloneModule takes argument function ShouldCloneDefinition to discriminate on objects being cloned, but blindly copies all named metadata...? In my case this results in debug nodes that are creating uses/relocations for global objects that were _not_ copied per

Hi, On 2018-03-26 16:44:05 -0700, Duncan P. N. Exon Smith wrote: > > The second approach is to *not* cache modules but re-read them from disk > > (or memory, but that's irrelevant here). That works without any sort of > > asserts, but "leaks" memory because everytime a module is re-read from > > disk it re-creates types (cf

On Tue, Jul 20, 2010 at 6:49 AM, Rafael Espindola <espindola at google.com> wrote: >> export PATH="$LLVMPREFIX/bin:$LLVMGCCPREFIX/bin:$PATH" >> export CC="llvm-gcc -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" >> export CXX="llvm-g++ -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" >> export RANLIB=/bin/true >> export

Hi Gregory, I had a similar problem a while back, see: http://lists.cs.uiuc.edu/pipermail/llvmdev/2010-June/032508.html for my solution to this problem. Basically I ended up linking in the *.o files needed to get exactly what I needed (in your case, the file defining CloneModule and whatever else you need), without pulling in too much (causing duplicate symbol issues with opt). Hopefully this

On Wed, Jul 21, 2010 at 9:50 AM, Jeffrey Yasskin <jyasskin at google.com> wrote: >> This (Unknown constant! in bitcode writer when -g is used) is a known >> bug in CloneModule, because it is not cloning MDNodes appropriately. > > What's the link to the bug report? Are you fixing it? PR 7689. Fixed in r109117. - Devang

I thought it would, but it seems to be missing the CloneModule symbol (which isn't called from anywhere in the LLVM codebase). On Fri, Jul 15, 2011 at 7:43 AM, John Criswell <criswell at illinois.edu>wrote: > On 7/14/11 7:36 PM, Gregory Malecha wrote: > > Hello, > > I have a question about how to set up a Makefile that generate a .so that I > can load into opt

> On Mar 23, 2018, at 16:11, Andres Freund via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi, > > (sorry if the CC's are inappropriate, they seemed relevant based on a > git log of IRMover.cpp) > > I'm using LLVM to implement Just-in-Time compilation for PostgreSQL. One > part of that is doing inlining of operators. For that I'm using bitcode

> On Mar 26, 2018, at 17:09, Andres Freund <andres at anarazel.de> wrote: > > Hi, > > On 2018-03-26 16:44:05 -0700, Duncan P. N. Exon Smith wrote: >>> The second approach is to *not* cache modules but re-read them from disk >>> (or memory, but that's irrelevant here). That works without any sort of >>> asserts, but "leaks" memory

Hi, (sorry if the CC's are inappropriate, they seemed relevant based on a git log of IRMover.cpp) I'm using LLVM to implement Just-in-Time compilation for PostgreSQL. One part of that is doing inlining of operators. For that I'm using bitcode pre-generated using clang. The current code uses a single LLVMContext & Orc to generate the code. That largely workes well. But inlining

Hi Philip, Thanks for the reference, I was able to follow it and copy the code that I saw necessary, but I still have some issues (references are still not updated). I created the function: void populateVMap(llvm::ValueToValueMapTy &VMap, llvm::Function *fOld, llvm::Function *fNew) { llvm::Function::arg_iterator DestI = fOld->arg_begin(); for (llvm::Function::const_arg_iterator J =

On Tue, Jul 20, 2010 at 10:39 AM, Devang Patel <devang.patel at gmail.com> wrote: > On Tue, Jul 20, 2010 at 6:49 AM, Rafael Espindola <espindola at google.com> wrote: >>> export PATH="$LLVMPREFIX/bin:$LLVMGCCPREFIX/bin:$PATH" >>> export CC="llvm-gcc -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" >>> export CXX="llvm-g++

On Thu, Jul 22, 2010 at 11:35 AM, Devang Patel <devang.patel at gmail.com>wrote: > On Wed, Jul 21, 2010 at 9:50 AM, Jeffrey Yasskin <jyasskin at google.com> > wrote: > >> This (Unknown constant! in bitcode writer when -g is used) is a known > >> bug in CloneModule, because it is not cloning MDNodes appropriately. > > > > What's the link to the

On Thu, Jul 22, 2010 at 1:21 PM, Jin Guoliang <jingl1345 at gmail.com> wrote: > On Thu, Jul 22, 2010 at 11:35 AM, Devang Patel <devang.patel at gmail.com>wrote: > >> On Wed, Jul 21, 2010 at 9:50 AM, Jeffrey Yasskin <jyasskin at google.com> >> wrote: >> >> This (Unknown constant! in bitcode writer when -g is used) is a known >> >> bug in

Hi Philip, The error happens when the program finishes and it automatically calls the destructors, so it is not an error specifically inside my program. Here's the full code: #include "llvm/ExecutionEngine/ExecutionEngine.h" #include "llvm/ExecutionEngine/MCJIT.h" #include "llvm/IRReader/IRReader.h" #include "llvm/Support/TargetSelect.h" #include

I'm a Libvirt newbie and I'd really appreciate it if someone could answer my doubts. I'm using Libvirt's Java API. My doubts: 1.Currently, I'm able to create a VM on Ubuntu 11.04 using Libvirt functions domainCreateLinux() and domainDefineXML(). Apart fromt the boolean return status of these operations and running the virsh list command, is there any way to SSH in (login) to

On Wednesday 09 July 2008 13:49, David Greene wrote: > > then it seems you're doing > > > > for each function > > generate_ir > > convert_to_llvm_ir > > optimize_llvm_ir > > Yep. Ok, I've mostly got a mechanism to do what I want: 1. As each function comes in for op/codegen, clone it and save off the clone and its associated ValueMap (I

Hi, I found the following wiki page in the Unladen Swallow project: http://code.google.com/p/unladen-swallow/wiki/CodeLifecycle This would appear to answer my question. Could someone confirm for me if it's definitely unsafe to attempt to optimise/JIT any Modules while a different thread is currently executing a JITed function which has been generated from them? Or am I just missing

Sorry to resurrect an old thread, but I finally got around to testing this approach (round tripping through bitcode in memory) and it works beautifully - and isn't that much slower than cloning. I have noticed however that the copy process isn't thread-safe. The problem is that in Function, there is lazy initialization code for arguments: void CheckLazyArguments() const { if

On Wednesday 09 July 2008 12:16, Eli Friedman wrote: > On Wed, Jul 9, 2008 at 9:56 AM, David Greene <dag at cray.com> wrote: > > I seem to recall havbing asked this before but I can't find it by > > searching. > > > > What's the right way to clone a Function? I need to save off the text at > > a certain point and spit it out later, after other