#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*/ duff_device(int *, int *, int);
int /*<<< orphan*/ printf(char *, int);
int main(void) {
  int s[] = {1, 2, 3, 4, 5}, d[5], i;
  duff_device(d, s, 5);
  for (i = 0; i < 5; i++)
    printf("%d\n", d[i]);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x50,%rsp
movl   $0x0,-0x4(%rbp)
mov    0xeca(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    0xec7(%rip),%rax
mov    %rax,-0x18(%rbp)
mov    0xec5(%rip),%eax
mov    %eax,-0x10(%rbp)
lea    -0x40(%rbp),%rdi
lea    -0x20(%rbp),%rsi
mov    $0x5,%edx
call   1040 <duff_device@plt>
movl   $0x0,-0x44(%rbp)
cmpl   $0x5,-0x44(%rbp)
jge    1193 <main+0x73>
movslq -0x44(%rbp),%rax
mov    -0x40(%rbp,%rax,4),%esi
lea    0xe94(%rip),%rdi
call   1030 <printf@plt>
mov    -0x44(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x44(%rbp)
jmp    1167 <main+0x47>
xor    %eax,%eax
add    $0x50,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x40,%rsp
mov    0xee5(%rip),%eax
mov    %eax,0x30(%rsp)
movaps 0xeca(%rip),%xmm0
movaps %xmm0,0x20(%rsp)
mov    %rsp,%rdi
lea    0x20(%rsp),%rsi
mov    $0x5,%edx
call   1040 <duff_device@plt>
mov    (%rsp),%esi
lea    0xebd(%rip),%rbx
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x4(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x8(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x10(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.s = [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5]
@.str = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [5 x i32]
%3 = alloca [5 x i32]
%4 = alloca i32
store i32 0, i32* %1
%5 = bitcast [5 x i32]* %2 to i8*
%6 = getelementptr inbounds [5 x i32], [5 x i32]* %3, i64 0, i64 0
%7 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 0
%8 = call i32 @duff_device(i32* %6, i32* %7, i32 5)
store i32 0, i32* %4
br label %9
9: ; preds = %18, %0
%10 = load i32, i32* %4
%11 = icmp slt i32 %10, 5
br i1 %11, label %12, label %21
12: ; preds = %9
%13 = load i32, i32* %4
%14 = sext i32 %13 to i64
%15 = getelementptr inbounds [5 x i32], [5 x i32]* %3, i64 0, i64 %14
%16 = load i32, i32* %15
%17 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %16)
br label %18
18: ; preds = %12
%19 = load i32, i32* %4
%20 = add nsw i32 %19, 1
store i32 %20, i32* %4
br label %9
21: ; preds = %9
ret i32 0
}

LLVM IR (-O2):
@__const.main.s = [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5]
@.str = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca [5 x i32]
%2 = alloca [5 x i32]
%3 = bitcast [5 x i32]* %1 to i8*
%4 = bitcast [5 x i32]* %2 to i8*
%5 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 0
%6 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 0
%7 = call i32 @duff_device(i32* %5, i32* %6, i32 5)
%8 = load i32, i32* %5
%9 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %8)
%10 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 1
%11 = load i32, i32* %10
%12 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %11)
%13 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 2
%14 = load i32, i32* %13
%15 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %14)
%16 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 3
%17 = load i32, i32* %16
%18 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %17)
%19 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 4
%20 = load i32, i32* %19
%21 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %20)
ret i32 0
}