declare void @print_i32(i32) define i8 @sum(i8 %a, i8 %b) { %c = add i8 %a, %b unwind } define i32 @main() { invoke i8 @sum(i8 1, i8 2) to label %continue unwind label %error continue: call void @print_i32(i32 1) ret i32 0 error: call void @print_i32(i32 0) ret i32 0 }