#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ pay_amount(int, int *, int *, int *, int *);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int singles, fives, tens, twenties, change;
  printf("Enter the total change amount: ");
  scanf("%d", &change);
  pay_amount(change, &twenties, &tens, &fives, &singles);
  printf("$20 Bills: %d\n", twenties);
  printf("$10 Bills: %d\n", tens);
  printf("$ 5 Bills: %d\n", fives);
  printf("$ 1 Bills: %d\n", singles);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xecc(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x18(%rbp),%edi
lea    -0x14(%rbp),%rsi
lea    -0x10(%rbp),%rdx
lea    -0xc(%rbp),%rcx
lea    -0x8(%rbp),%r8
call   1030 <pay_amount@plt>
mov    -0x14(%rbp),%esi
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%esi
lea    0xea2(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0xc(%rbp),%esi
lea    0xea0(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xe9e(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x18,%rsp
lea    0xec5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed7(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%edi
lea    0x8(%rsp),%rsi
lea    0xc(%rsp),%rdx
lea    0x10(%rsp),%rcx
lea    0x14(%rsp),%r8
call   1030 <pay_amount@plt>
mov    0x8(%rsp),%esi
lea    0xea8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    0xea5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x10(%rsp),%esi
lea    0xea2(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x14(%rsp),%esi
lea    0xe9f(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [32 x i8] c"Enter the total change amount: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [15 x i8] c"$20 Bills: %d\0A\00"
@.str.3 = [15 x i8] c"$10 Bills: %d\0A\00"
@.str.4 = [15 x i8] c"$ 5 Bills: %d\0A\00"
@.str.5 = [15 x i8] c"$ 1 Bills: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
store i32 0, i32* %1
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %6)
%9 = load i32, i32* %6
%10 = call i32 @pay_amount(i32 %9, i32* %5, i32* %4, i32* %3, i32* %2)
%11 = load i32, i32* %5
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %11)
%13 = load i32, i32* %4
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i32 %13)
%15 = load i32, i32* %3
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0), i32 %15)
%17 = load i32, i32* %2
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0), i32 %17)
ret i32 0
}

LLVM IR (-O2):
@.str = [32 x i8] c"Enter the total change amount: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [15 x i8] c"$20 Bills: %d\0A\00"
@.str.3 = [15 x i8] c"$10 Bills: %d\0A\00"
@.str.4 = [15 x i8] c"$ 5 Bills: %d\0A\00"
@.str.5 = [15 x i8] c"$ 1 Bills: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = bitcast i32* %1 to i8*
%7 = bitcast i32* %2 to i8*
%8 = bitcast i32* %3 to i8*
%9 = bitcast i32* %4 to i8*
%10 = bitcast i32* %5 to i8*
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @.str, i64 0, i64 0))
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %5)
%13 = load i32, i32* %5
%14 = call i32 @pay_amount(i32 %13, i32* %4, i32* %3, i32* %2, i32* %1)
%15 = load i32, i32* %4
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %15)
%17 = load i32, i32* %3
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i32 %17)
%19 = load i32, i32* %2
%20 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0), i32 %19)
%21 = load i32, i32* %1
%22 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0), i32 %21)
ret i32 0
}