gistfile1.txt

@foo = thread_local global i32 3

define i32 @main() {
    %1 = load i32* @foo
    ret i32 %1
}


// ./x86_64-apple-darwin/llvm/Release+Asserts/bin/llc foo.ll -filetype=obj
// gcc -o foo foo.o
// ./foo

Output:

agrif@anduril:~/local/rust$ ./x86_64-apple-darwin/llvm/Release+Asserts/bin/llc foo.ll -filetype=obj
agrif@anduril:~/local/rust$ gcc -o foo foo.o
Undefined symbols for architecture x86_64:
  "__tlv_bootstrap", referenced from:
      _foo in foo.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
agrif@anduril:~/local/rust$