| declare void @print_i32(i32) | |
| define i32 @main() { | |
| entry: | |
| br label %test | |
| test: | |
| %a = phi i32 [10, %entry], [%b, %test] | |
| %b = phi i32 [20, %entry], [%a, %test] | |
| %c = phi i32 [0, %entry], [1, %test] | |
| %d = icmp eq i32 %c, 1 | |
| br i1 %d, label %exit, label %test | |
| exit: | |
| call void @print_i32(i32 %b) | |
| ret i32 0 | |
| } |