similar to: [LLVMdev] Critical sections cleanup

The mutex could be made an actual global static instead of a ManagedStatic. This guarantees it would be constructed before main, and live until the end of main. So even in PassRegistry's destructor, which would get call during llvm_shutdown(), it would always have the same mutex. Ideally I'd like to just delete the mutex, as it doesn't seem like anyone is using it in a

I actually had an idea about how to fix this in a relatively painless manner. Although given my experience over the past 4 days, it might not be best to call it painless without first trying :) The idea is to make a StaticPassRegistry. RegisterPass<> only touches the StaticPassRegistry, and nothing else touches the StaticPassRegistry. So once you enter main(), StaticPassRegistry can be

+cc original authors of these changes. Is PassRegistry intended to be thread-safe? The header file explicitly says that PassRegistry is not thread-safe, but there are mutexes and locking used in the code. This is actually creating a problem, because of a subtle bug involving static initialization order and shutdown. In particular, the RegisterPass<> static template will get invoked

I am trying to figure out how to free up some memory that seems to be lost when running valgrind under our internal application. The stack traces I get are: ==19966== 4 bytes in 1 blocks are still reachable in loss record 1 of 12 ==19966== at 0x402569A: operator new(unsigned int) (vg_replace_malloc.c:255) ==19966== by 0x5D9BBE8: void* llvm::object_creator<llvm::PassRegistry>()

Hi, We use LLVM libraries to compile C++ code and noticed slow downs when multiple threads of a process were compiling at once. *perf *indicated that most of the CPU time was spent in a spin lock, which was being locked/unlocked from llvm::PassRegistry::getPassInfo(). We read the relevant LLVM code and found out that PassRegistry is a ManagedStatic and is shared among all threads in case of a

Hi , I get the following error when I try and load a certain pass I have made. Can anyone help me out? What could be the problem? And how can I remove it? opt: Pass.cpp:147: void<unnamed>::PassRegistrar::RegisterPass(llvm::PassInfo&): Assertion `Inserted && "Pass registered multiple times!"' failed. Aborted (core dumped) Thanks Nipun --------------

We have root caused the segfault - it was due to a caching layer we have in our code, which is to avoid duplicate compilations. Basically, llvm::JIT::getPointerToFunction() looks up PassRegistry, but as our change introduces a separate PassRegistry for each thread, this means that the thread that calls llvm::JIT::getPointerToFunction() should have appropriate PassRegistry setup. In our setup, some

Hello, Following the tutorial for writing a pass, I found the next problem. ***************************** :~/llvm/test$ opt -load ../llvm/Debug/lib/mypass.so -mypass < hello.bc > /dev/null opt: Pass.cpp:151: void<unnamed>::PassRegistrar::RegisterPass(const llvm::PassInfo&): Assertion `Inserted && "Pass registered multiple times!"' failed. Aborted

Hi, I'm currently attempting to implement a pass that will hopefully run under the opt tool. Currently, I'm having some difficulties -- the sample code for the Hello pass (see http://llvm.org/docs/WritingAnLLVMPass.html) doesn't work. The first error is that the section starting 'As a while, the cpp file looks like:' omits the declaration for char Hello::ID = 0 that is

Hello LLVM, I am following the document "Writing an LLVM Pass". When I ran "opt -load ../../../Debug/lib/MyPass.so -mypass < hello.bc > /dev/null" I got the next error: ***@ubuntu:~/test$ opt -load ../../llvm/Debug/lib/MyPass.so -mypass < hello.bc > /dev/null opt: Pass.cpp:159: void<unnamed>::PassRegistrar::RegisterPass(const llvm::PassInfo&): Assertion

I have just started using llvn and I am running in the following error when trying to run Hello World Pass in the llvm documentation. opt: /usr/local/llvm/src/lib/VMCore/Pass.cpp:158: void <unnamed>::PassRegistrar::RegisterPass(llvm::PassInfo&): Assertion `Inserted && "Pass registered multiple times!"' failed. The problem gets resolved if the Hello.so library is

Hi, I'm Ryo Onodera. This is my first post to this mailing list. Fist, thanks for creating a great library! We're using LLVM to support JIT in Rubinius (an alternative implementation of Ruby, a dynamic programming language). I'm submitting a small patch for a minor issue. It solves still-reachable leak warnings from Valgrind. Example warnings are shown at the end of this mail. As

Did you try changing the name from Hello to MyHello or something like that? I seem to remember having a similar problem. My tutorial code names the struct MyHello and then registers it as follows: RegisterPass<MyHello> X("myhello", "My Hello World Pass"); You will likely need to change the Makefile as well. Scott On Fri, Jun 19, 2009 at 11:15 AM, Juan Carlos Martinez

Hi, I'm writing my first hello world Pass with the class name First, but when I tried to load it using opt, I got the following error: /var/soft/llvm-2.2-build/lib/Transforms/Hello$ opt -load ../../../Debug/lib/First.so --help opt: /var/soft/llvm-2.2/lib/VMCore/Pass.cpp:157: void<unnamed>::PassRegistrar::RegisterPass(llvm::PassInfo&): Assertion `Inserted && "Pass

Hello, my name is Marc. I wrote a llvm function pass by using the "hello world" tutorial. But this selfwritten pass (GA_VHDL_Pass) dependes on another function pass (GenomePass). GenomePass also dependes on two other function passes. The Pass GenomePass generates an object, which is used in my GA-VHDL_Pass. When I compile my Make file I always get this error message:

Sarah, We have Hello pass in svn at lib/Transforms/Hello This is a working example. I will update documentation to include "char Hello::ID = 0". On Jul 25, 2007, at 1:51 PM, Sarah Thompson wrote: > Hi, > > I'm currently attempting to implement a pass that will hopefully run > under the opt tool. Currently, I'm having some difficulties -- the > sample code

Juan Carlos Martinez Santos wrote: > Hello LLVM, > > I am following the document "Writing an LLVM Pass". When I ran "opt > -load ../../../Debug/lib/MyPass.so -mypass < hello.bc > /dev/null" I > got the next error: > > ***@ubuntu:~/test$ opt -load ../../llvm/Debug/lib/MyPass.so -mypass < > hello.bc > /dev/null > opt: Pass.cpp:159:

I am trying to run the HELLO LLVM Pass under WinXP/MinGW, by following the precise steps available at http://www.llvm.org/docs/WritingAnLLVMPass.html. The pass failed to run, giving me the following error: opt -load Release/lib/Hello.dll -hello < ./hello.bc > /dev/null opt.exe: Unknown command line argument '-hello'. Try: 'C:\MSYS\opt\llvm-2.7\bin\opt.exe -help' make:

Hey Chuck, I'm afraid I can't reproduce your error but...a problem you may run into later is that opt will complain with opt: llvm/lib/VMCore/Pass.cpp:149: void<unnamed>::PassRegistrar::RegisterPass(const llvm::PassInfo&): Assertion `Inserted && "Pass registered multiple times!"' failed. Aborted I "fixed" this by replacing the LLVMLIBS line in

Sorry to keep dragging this out on you. Im now getting: Assertion failed: (ResultPass && "getAnalysis*() called on an analysis that was not " "'required' by pass!"), function getAnalysisID But I already have: void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<DominatorTree>(); } And changed the bottom of my pass too: char Hello::ID =