Hi all, When I try to compile (with command line : "clang simple.ll -o exec") the llvm ir file in attachment, I get a seg fault. My machine is linux (ubuntu 16.04) machine with an intel i7 and 16gb of ram.
I got the following error report : warning: overriding the module target triple with x86_64-pc-linux-gnu [-Woverride-module] 0 libLLVM-3.8.so.1 0x00007fa1d9183d38 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 56 1 libLLVM-3.8.so.1 0x00007fa1d9181fc6 llvm::sys::RunSignalHandlers() + 54 2 libLLVM-3.8.so.1 0x00007fa1d9182129 3 libc.so.6 0x00007fa1d82be4b0 4 libLLVM-3.8.so.1 0x00007fa1d92a6c39 llvm::PHINode::removeIncomingValue(unsigned int, bool) + 73 5 libLLVM-3.8.so.1 0x00007fa1d91a4847 llvm::BasicBlock::removePredecessor(llvm::BasicBlock*, bool) + 487 6 libLLVM-3.8.so.1 0x00007fa1d951e152 7 libLLVM-3.8.so.1 0x00007fa1d92c92a2 llvm::FPPassManager::runOnFunction(llvm::Function&) + 498 8 libLLVM-3.8.so.1 0x00007fa1d92c963b llvm::FPPassManager::runOnModule(llvm::Module&) + 43 9 libLLVM-3.8.so.1 0x00007fa1d92c8eef llvm::legacy::PassManagerImpl::run(llvm::Module&) + 783 10 clang 0x00000000006eb0d3 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::raw_pwrite_stream*) + 4403 11 clang 0x0000000000a16e71 12 clang 0x000000000099aa0e clang::FrontendAction::Execute() + 302 13 clang 0x0000000000970406 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 278 14 clang 0x0000000000a152b3 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1987 15 clang 0x00000000006b3528 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) + 2264 16 clang 0x00000000006affbc main + 6252 17 libc.so.6 0x00007fa1d82a9830 __libc_start_main + 240 18 clang 0x00000000006b1969 _start + 41 Stack dump: 0. Program arguments: /usr/lib/llvm-3.8/bin/clang -cc1 -triple x86_64-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name simple.ll -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -resource-dir /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0 -fdebug-compilation-dir /home/nico/testCompiler -ferror-limit 19 -fmessage-length 134 -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/simple-b4ad3b.o -x ir simple.ll 1. Code generation 2. Running pass 'Function Pass Manager' on module 'simple.ll'. 3. Running pass 'Remove unreachable blocks from the CFG' on function '@simple' clang: error: unable to execute command: Segmentation fault (core dumped) clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script. clang: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs. Anybody have an idea of the problem ? Thanks, Cheers, Nicolas
simple.ll
Description: Binary data
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