llvm

I've been working on a small tool with clang/llvm but I haven't been able to successfully get g++ and gnu's linker to properly link my code against clang. my linker is generating the following errors: undefined reference to `clang::FileManager::~FileManager()' undefined reference to `clang::FileManager::FileManager()' undefined reference to `llvm::sys::getHostTriple()' undefined reference to `clang::Diagnostic::Diagnostic(clang::DiagnosticClient*)' undefined reference to `llvm::outs()' undefined reference to `clang::TargetInfo::CreateTargetInfo(clang::Diagnostic&, clang::TargetOptions&)'

I'm using these commands to compile the code below in order to collect edge/blocks profiling in trunk-llvm: clang -emit-llvm -c sort.c -o sort.bc opt -insert-edge-profiling sort.bc -o sort_prof.bc clang sort_prof.bc -lprofile_rt -L/llvms/lib -o sort_prof then I run the program and display the profiling information using llvm-prof sort_prof.bc, and the result is: ===-------------------------------------------------------------------------=== Function execution frequencies: ## Frequency 1. 4.3e+05/708539 main 2. 2.8e+05/708539 quickSort NOTE: 2 functions were never executed! ..... My question is

this is my first experience in commandline mode of lldb. unsuccessful. installed minimal kit with clang, lld, lldb v5 (ubuntu 16.04) sample application built with clang. trying to start: lldb applcation >run error: process launch failed: unable to locate lldb-server-5.0.0 so now the questions: why lldb tries to run a server? this is not a remote debugging. why lldb refers to 5.0.0 (and where to change this setting)? actually there was added symbolic links automiticaly with xxx-5.0 suffix to all llvm utilities, but not with xxx-5.0.0. would be reasonable if this refers to lldb-server itself,

I've used Clang to compile a function with debug information enabled. For Instruction s there's the handy getDebugLoc() , but there's no such thing for Function s. Given a Function instance, how can I get the debug information (I'm guessing in DISubProgram form) for it? I've seen the guide entry explaining how that debug information is represented , and the metadata does contain a link back to the function, but there's apparently no link back. Am I supposed to iterate over all the metadata in the module? I don't think there's currently an easier way. There used to be a global metadata node

I am trying to use SSE4.2 intrinsics with clang/llvm but its not compiling, as I get cannot select intrinsic error from LLVM. On the other hand, the same code compiles flawlessly in gcc. So I thought, maybe I can compile that function with gcc, so as to have an object or library file, and then call that library function in my code, which is compiled by clang/llvm. Would that work? Z boson It's possible to compile an object file with GCC in Linux and convert it to work in Visual Studio. I did this recently running Linux in Virtual Box on Windows converting-c-object-file-from-linux-o-to-windows

I started to use Xcode 4.2 and i have problems with generating code coverage. Xcode 4.2 does not include the GCC 4.2 compiler, but it was replaced with the LLVM GCC 4.2 compiler. The first one was needed to generate code coverage in the previous version of Xcode. I followed the 'tutorial' on CoverStory website , but this results in the following: a) when i do all steps, no coverage files. b) when i link the libprofile_rt.dylib to my project, the test which should fail, do not fail anymore. Did anyone encounter this issue? And how did you solve it? Thanks Here is a way to enable compiling with

I want to use libc++ together with clang on Arch Linux in CMake project. I installed libc++ and added following lines to CMakeLists.txt as said on LLVM site in Linux section of "Using libc++ in your programs": set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++") set(CMAKE_EXE_LINKER_FLAGS "-lc++abi") I have tried just "++abi" in linker's flags, but it didn't help. I need some help in figuring out what i should write in my CMakeLists.txt. emw Don't forget to set the compiler to clang++: set(CMAKE_CXX_COMPILER "clang++") Also, purge the cmake generated files (delete the folder