#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 */
typedef int /*<<< orphan*/ arr;

/* Variables and functions */
int /*<<< orphan*/ getchar();
int /*<<< orphan*/ mergeSort(int *, int /*<<< orphan*/, int);
int /*<<< orphan*/ printf(char *, int);
main() {
  int arr[] = {1, 2, 55, 4, 37, 3, 44, 21, 33, 304, 45, 16};
  int len = sizeof(arr) / 4;
  mergeSort(arr, 0, len - 1);
  int i;
  for (i = 0; i < len; i++) {
    printf("%d ", arr[i]);
  }
  getchar();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x50,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x40(%rbp),%rdi
lea    0xea6(%rip),%rsi
mov    $0x30,%edx
call   1050 <memcpy@plt>
movl   $0xc,-0x44(%rbp)
lea    -0x40(%rbp),%rdi
mov    -0x44(%rbp),%edx
sub    $0x1,%edx
xor    %esi,%esi
call   1060 <mergeSort@plt>
movl   $0x0,-0x48(%rbp)
mov    -0x48(%rbp),%eax
cmp    -0x44(%rbp),%eax
jge    11b1 <main+0x71>
movslq -0x48(%rbp),%rax
mov    -0x40(%rbp,%rax,4),%esi
lea    0xe92(%rip),%rdi
call   1030 <printf@plt>
mov    -0x48(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x48(%rbp)
jmp    1183 <main+0x43>
mov    $0x0,%al
call   1040 <getchar@plt>
mov    -0x4(%rbp),%eax
add    $0x50,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
movaps 0xee4(%rip),%xmm0
movaps %xmm0,0x20(%rsp)
movaps 0xec8(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movaps 0xeac(%rip),%xmm0
movaps %xmm0,(%rsp)
mov    %rsp,%rdi
xor    %esi,%esi
mov    $0xb,%edx
call   1050 <mergeSort@plt>
mov    (%rsp),%esi
lea    0xebf(%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>
mov    0x14(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x18(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x1c(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x20(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x24(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x28(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x2c(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <getchar@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.arr = [12 x i32] [i32 1, i32 2, i32 55, i32 4, i32 37, i32 3, i32 44, i32 21, i32 33, i32 304, i32 45, i32 16]
@.str = [4 x i8] c"%d \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [12 x i32]
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = bitcast [12 x i32]* %2 to i8*
store i32 12, i32* %3
%6 = getelementptr inbounds [12 x i32], [12 x i32]* %2, i64 0, i64 0
%7 = load i32, i32* %3
%8 = sub nsw i32 %7, 1
%9 = call i32 @mergeSort(i32* %6, i32 0, i32 %8)
store i32 0, i32* %4
br label %10
10: ; preds = %20, %0
%11 = load i32, i32* %4
%12 = load i32, i32* %3
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %23
14: ; preds = %10
%15 = load i32, i32* %4
%16 = sext i32 %15 to i64
%17 = getelementptr inbounds [12 x i32], [12 x i32]* %2, i64 0, i64 %16
%18 = load i32, i32* %17
%19 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %18)
br label %20
20: ; preds = %14
%21 = load i32, i32* %4
%22 = add nsw i32 %21, 1
store i32 %22, i32* %4
br label %10
23: ; preds = %10
%24 = call i32 (...) @getchar()
%25 = load i32, i32* %1
ret i32 %25
}

LLVM IR (-O2):
@__const.main.arr = [12 x i32] [i32 1, i32 2, i32 55, i32 4, i32 37, i32 3, i32 44, i32 21, i32 33, i32 304, i32 45, i32 16]
@.str = [4 x i8] c"%d \00"
define i32 @main() {
%1 = alloca [12 x i32]
%2 = bitcast [12 x i32]* %1 to i8*
%3 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 0
%4 = call i32 @mergeSort(i32* %3, i32 0, i32 11)
%5 = load i32, i32* %3
%6 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %5)
%7 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 1
%8 = load i32, i32* %7
%9 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %8)
%10 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 2
%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 [12 x i32], [12 x i32]* %1, i64 0, i64 3
%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 [12 x i32], [12 x i32]* %1, i64 0, i64 4
%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 [12 x i32], [12 x i32]* %1, i64 0, i64 5
%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)
%22 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 6
%23 = load i32, i32* %22
%24 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %23)
%25 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 7
%26 = load i32, i32* %25
%27 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %26)
%28 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 8
%29 = load i32, i32* %28
%30 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %29)
%31 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 9
%32 = load i32, i32* %31
%33 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %32)
%34 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 10
%35 = load i32, i32* %34
%36 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %35)
%37 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 11
%38 = load i32, i32* %37
%39 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %38)
%40 = call i32 (...) @getchar()
ret i32 0
}