"_clang.arc.use", referenced from:
+[OBDemo myName] in result.a(result.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
./Hikari.xctoolchain/usr/bin/opt -debug-pass=Details OBDemo.bc -o result.bc
Pass Arguments: -targetlibinfo -tti -targetpassconfig -verify -write-bitcode
Target Library Information
Target Transform Information
Target Pass Configuration
ModulePass Manager
FunctionPass Manager
Module Verifier
Bitcode Writer
[2018-11-05 17:29:18.894502000] 0x7fdc4d4038e0 Executing Pass 'Function Pass Manager' on Module 'OBDemo.bc'...
[2018-11-05 17:29:18.895022000] 0x7fdc4d406d00 Executing Pass 'Module Verifier' on Function '+[OBDemo myName]'...
-*- 'Module Verifier' is the last user of following pass instances. Free these instances
[2018-11-05 17:29:18.895116000] 0x7fdc4d406d00 Freeing Pass 'Module Verifier' on Function '+[OBDemo myName]'...
[2018-11-05 17:29:18.895138000] 0x7fdc4d406d00 Executing Pass 'Module Verifier' on Function '+[OBDemo P1]'...
-*- 'Module Verifier' is the last user of following pass instances. Free these instances
[2018-11-05 17:29:18.895183000] 0x7fdc4d406d00 Freeing Pass 'Module Verifier' on Function '+[OBDemo P1]'...
[2018-11-05 17:29:18.895204000] 0x7fdc4d4038e0 Executing Pass 'Bitcode Writer' on Module 'OBDemo.bc'...
-*- 'Bitcode Writer' is the last user of following pass instances. Free these instances