#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*/ a;

/* Variables and functions */
int /*<<< orphan*/ merge_sort(int *, int /*<<< orphan*/, int, int);
int /*<<< orphan*/ printf(char *, int);
int main(void) {
  int a[] = {3, 4, 5, 6, 7, 4, 1, 0, 9, 8};
  int size = sizeof(a) / sizeof(a[0]);
  merge_sort(a, 0, size - 1, size);
  for (int i = 0; i < size; i++) {
    printf("%d ", a[i]);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x30(%rbp),%rdi
lea    0xeb6(%rip),%rsi
mov    $0x28,%edx
call   1040 <memcpy@plt>
movl   $0xa,-0x34(%rbp)
lea    -0x30(%rbp),%rdi
mov    -0x34(%rbp),%edx
sub    $0x1,%edx
mov    -0x34(%rbp),%ecx
xor    %esi,%esi
call   1050 <merge_sort@plt>
movl   $0x0,-0x38(%rbp)
mov    -0x38(%rbp),%eax
cmp    -0x34(%rbp),%eax
jge    11a4 <main+0x74>
movslq -0x38(%rbp),%rax
mov    -0x30(%rbp,%rax,4),%esi
lea    0xe97(%rip),%rdi
call   1030 <printf@plt>
mov    -0x38(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x38(%rbp)
jmp    1176 <main+0x46>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
mov    0xef4(%rip),%rax
mov    %rax,0x20(%rsp)
movaps 0xed8(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movaps 0xebc(%rip),%xmm0
movaps %xmm0,(%rsp)
mov    %rsp,%rdi
xor    %esi,%esi
mov    $0x9,%edx
mov    $0xa,%ecx
call   1040 <merge_sort@plt>
mov    (%rsp),%esi
lea    0xec2(%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>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

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

LLVM IR (-O2):
@__const.main.a = [10 x i32] [i32 3, i32 4, i32 5, i32 6, i32 7, i32 4, i32 1, i32 0, i32 9, i32 8]
@.str = [4 x i8] c"%d \00"
define i32 @main() {
%1 = alloca [10 x i32]
%2 = bitcast [10 x i32]* %1 to i8*
%3 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 0
%4 = call i32 @merge_sort(i32* %3, i32 0, i32 9, i32 10)
%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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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 [10 x i32], [10 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)
ret i32 0
}