Thread 87 "blender" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffa77ff700 (LWP 5682)]
0x00007fffd02cea50 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
(gdb) bt
#0  0x00007fffd02cea50 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#1  0x00007fffd02d6520 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#2  0x00007fffd0450e56 in llvm::RegAllocBase::postOptimization() () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#3  0x00007fffd046229d in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#4  0x00007fffd038f600 in llvm::MachineFunctionPass::runOnFunction(llvm::Function&) () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#5  0x00007fffd01eaa28 in llvm::FPPassManager::runOnFunction(llvm::Function&) () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#6  0x00007fffd0dee2d8 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#7  0x00007fffd01ea2bf in llvm::legacy::PassManagerImpl::run(llvm::Module&) () from /usr/lib/x86_64-linux-gnu/libLLVM-5.0.so.1
#8  0x00007fffbc82223e in ?? () from /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1
#9  0x00007fffbc822940 in ?? () from /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1
#10 0x00007fffbc81e117 in ?? () from /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1
#11 0x00007fffbc80f901 in ?? () from /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1
#12 0x00007fffbc7ef9a2 in ?? () from /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1
#13 0x0000000001ff33fd in ccl::OpenCLDeviceBase::OpenCLProgram::build_kernel(std::string const*) ()
#14 0x0000000001ff581a in ccl::OpenCLDeviceBase::OpenCLProgram::compile_kernel(std::string const*) ()
#15 0x0000000001ff7639 in ccl::OpenCLDeviceBase::OpenCLProgram::load() ()
#16 0x0000000001ff1f8d in ccl::OpenCLSplitKernel::get_split_kernel_function(std::string const&, ccl::DeviceRequestedFeatures const&) ()
#17 0x0000000001fe7733 in ccl::DeviceSplitKernel::load_kernels(ccl::DeviceRequestedFeatures const&) ()
#18 0x0000000001ff2670 in ccl::OpenCLDeviceSplitKernel::load_kernels(ccl::DeviceRequestedFeatures const&, ccl::vector<ccl::OpenCLDeviceBase::OpenCLProgram*, ccl::GuardedAllocator<ccl::OpenCLDeviceBase::OpenCLProgram*> >&) ()
#19 0x0000000002008b03 in ccl::OpenCLDeviceBase::load_kernels(ccl::DeviceRequestedFeatures const&) ()
#20 0x0000000001f8788d in ccl::Session::load_kernels(bool) ()
#21 0x0000000001f89ecb in ccl::Session::run() ()
#22 0x0000000002a007be in ccl::thread::run(void*) ()
#23 0x00007ffff79b57fc in start_thread (arg=0x7fffa77ff700) at pthread_create.c:465
#24 0x00007ffff64a0a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95