/*
 * Prove that the compiler is doing pointer operations
 * for references.
 */

struct integer {
    i: u32,
}

fn main() {
    /*
     * Note: generated asm is not-optimized.
     *
     * Because of compiler alignment preferences,
     * 4 + 8 + 4 (=16) sized locals are given 24 bytes.
     */

    /*
     * i1 goes on the stack at 4(rsp)
     * movl $1, 4(rsp)
     */
    let i1: integer = integer { i: 1 };
    /*
     * pointer copy
     * the address of i1 goes on the stack
     * at 8(rsp).
     * leaq 4(rsp), rax)
     * movq rax, 8(rsp)
     */
    let i2: &integer = &i1;
    /*
     * value copy
     * the 'long' value on the stack at
     * 4(rsp) gets copied to 12(rsp).
     * movl 4(rsp), ecx
     * movl ecx, 20(rsp)
     */
    let i3: integer = i1;
}