similar to: add_library cannot create target "LLVMTarget" because an imported target with the same name already exists.

Andrzej, On 7/14/19 8:02 AM, Andrzej Warzynski wrote: > This is still very early stages, but you can be my guinea pig: > > https://github.com/banach-space/llvm-tutor > > It's a tutorial that I've been preparing recently and am hoping to > present somewhere at some point :-) I believe that it already covers 1), > 2) and 3). I haven't had the time to work on 4).

Hi, supposing I have a function “foo” like the following: int foo(int a, int b) { ... ... } I want to insert int the LLVM IR a call instructions to a function “bar” that requires the same parameters of foo. So my function foo will become: int foo(int a, int b) { bar(a,b); … ... } I am using the following code: bool ThreadSanitizer::runOnFunction(Function &F) {

Thanks John. I guess I will use a ModulePass, so when I am implementing the “runOnModule” function, do I have to loop through all the functions, for each functions all the BasicBlocks and for each BasicBlock all the instructions or given the Module I have to call the CallGraph directly? Is there an example out there? I can’t find anything. Thanks. Simone > On Feb 24, 2015, at 13:29, John

> > On Nov 19, 2016, at 14:09, Mehdi Amini <mehdi.amini at apple.com> wrote: > > I assume from your description that you are also updating call sites in the same module so that if foo was calling atoi, after cloning you have foo_parallel that is calling atoi_parallel? > If this is the issue, it depends, I’d probably consider turning the available_externally into internal.

Hi all, I would like to create a Pass that given an IR instruction walks starting from that instruction up to the main function to identify all the functions call that have been made to call that instruction. Is it possible? What kind of Pass should I create? Thanks Best, Simone Simone Atzeni simone.at at gmail.com +1 (801) 696-8373

I ran into a similar problem a while ago; see https://reviews.llvm.org/D30107 and https://reviews.llvm.org/D33515 .  You get the unusual stack trace because it's trying to call a destructor in shared library which was already unloaded. I thought we had fixed that, but maybe not?  Looking again, it looks like the patch got reverted and I didn't notice. -Eli On 5/14/2018 10:18 PM,

Because what is happening is that if function “atoi” gets cloned I don’t have a definition of “atoi_parallel” therefore I get undefined references when linking. I just want to clone and instrument functions implemented in modules of my program. > On Nov 19, 2016, at 13:54, Mehdi Amini <mehdi.amini at apple.com> wrote: > > >> On Nov 19, 2016, at 12:44 PM, Simone Atzeni

Hi, I am trying to compile LLVM for AARCH (VMA=42), here my cmake command: cmake -G "Ninja" -D SANITIZER_AARCH64_VMA=42 .. But I get the following warning: ------------------------------------------------------------------------------------------ CMake Warning: Manually-specified variables were not used by the project: SANITIZER_AARCH64_VMA

Hi Simon, > From: Simone Atzeni <simone.at at gmail.com> > To: John Criswell <jtcriswel at gmail.com> > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Walking thru CallGraph bottom up > Message-ID: <318EBA41-2040-4EFE-B330-5813C817C2A2 at gmail.com> > Content-Type: text/plain; charset="windows-1252" > > I think I got it and the example is

John Myers <atomicdog.jwm at gmail.com> writes: > I'm looking for some pointers on how to troubleshoot this problem. I'm > trying to write a backend for the AVR. > There is an undefined reference at line 48 which is the line FrameInfo() is > on. I've tried to use the MSP430 and other targets as references so I'm not > sure > what changes I did would cause a

Thanks Mehdi. My pass clones the functions within a module in order to have the original function and an exact copy of the same function but with a different name, i.e. sum() and sum_parallel(). After my pass I will run ThreadSanitizer instrumentation pass only on the new copy of the functions, i.e. only the “_parallel” functions will be instrumented by tsan. In some programs that I am

On 2/25/15 10:51 AM, Simone Atzeni wrote: > Thanks John. > > I guess I will use a ModulePass, so when I am implementing the “runOnModule” function, > do I have to loop through all the functions, for each functions all the BasicBlocks and for each BasicBlock all the instructions If you know the Instruction, you can get it's basic block using Instruction::getParent(), and then get

It's working with trunk though. Do you think the patch will end up in 6.0.1? Thanks. Simone On Tue, May 15, 2018 at 11:18 AM, Friedman, Eli <efriedma at codeaurora.org> wrote: > I ran into a similar problem a while ago; see https://reviews.llvm.org/ > D30107 and https://reviews.llvm.org/D33515 . You get the unusual stack > trace because it's trying to call a destructor

Hi, as in the subject, is it possible to call on of the analysis pass present in the LLVM (lib/ folder) within a tool pass (tools/ folder)? Thanks. Best, Simone

Hi, not sure if this is the right place, but I am experiencing a problem using clang++ (3.9.1) with Boost Filesystem. I have this simple program: ------------------------------------------------------------------------ #include <iostream> #include <boost/filesystem.hpp> using namespace boost::filesystem; int main(int argc, char* argv[]) { if (argc < 2) { std::cout

Hi all, I was porting my pass from LLVM 4.0 to 6.0 and I am getting a segmentation fault. I was able to obtain only the info below from GDB. I tried to debug with some printf and the runOnFunction runs correctly. Any idea/suggestion about what is going on? The source code of the pass is here: https://github.com/PRUNERS/sword/blob/master/lib/Sword.cpp Any help is much appreciated, Thanks!

Hi, when I run cmake I get the following warning: --------------------------------------------------------------------------------------- CMake Warning at cmake/modules/HandleLLVMStdlib.cmake:24 (message): Can't specify libc++ with '-stdlib=' Call Stack (most recent call first): cmake/config-ix.cmake:15 (include) CMakeLists.txt:580 (include)

Hi, I am writing a plugin to get information about the OpenMP constructs from the AST. I am basically writing a “RecursiveASTVisitor” and I am trying to find the OpenMP statement and get information like filename and line of code. When I am visiting recursively each statement I have my own switch on the “StmtClass” and for now I am focusing on “OMPParallelForDirectiveClass”. In my understanding,

When I load my plugin into opt or llc, I get a bunch of warnings: llc: CommandLine Error: Argument 'use-unknown-locations' defined more than once! llc: CommandLine Error: Argument 'disable-debug-info-print' defined more than once! llc: CommandLine Error: Argument 'print-dbgscope' defined more than once! llc: CommandLine Error: Argument 'disable-sched-hazard'

Dear Simon, Kevin is correct; as far as I can tell, there is no method of getting the functions calling a given function. Instead, you have to start at the main() function and search for the function using a depth-first or breadth-first search. What may make sense is to build a new data structure that has nodes that point from callees to callers once and then use that for your queries.