## Full Example

    ; Declare the string constant as a global constant.
    @.str = private unnamed_addr constant [13 x i8] c"hello world\0A\00"

    ; External declaration of the puts function
    declare i32 @puts(i8* nocapture) nounwind

    ; Definition of main function
    define i32 @main() {   ; i32()*
    entry:
      ; Convert [13 x i8]* to i8*...
      %cast210 = getelementptr [13 x i8], [13 x i8]* @.str, i64 0, i64 0

      ; Call puts function to write out the string to stdout.
      call i32 @puts(i8* %cast210)
      ret i32 0
    }

    ; Named metadata
    !0 = !{i32 42, null, !"string"}
    !foo = !{!0}