#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 /*<<< orphan*/ printf(char *, ...);
int main(void) {
  int A[] = {5, 0, 2, 4, 5, 7, 1, 6, 3, 6, 2, 9};
  int n = sizeof(A) / sizeof(int);
  merge_sort(A, 0, n - 1);
  for (int i = 0; i < n; i++)
    printf("%d", A[i]);
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x50,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x40(%rbp),%rdi
lea    0xeb6(%rip),%rsi
mov    $0x30,%edx
call   1040 <memcpy@plt>
movl   $0xc,-0x44(%rbp)
lea    -0x40(%rbp),%rdi
mov    -0x44(%rbp),%edx
sub    $0x1,%edx
xor    %esi,%esi
call   1050 <merge_sort@plt>
movl   $0x0,-0x48(%rbp)
mov    -0x48(%rbp),%eax
cmp    -0x44(%rbp),%eax
jge    11a3 <main+0x73>
movslq -0x48(%rbp),%rax
mov    -0x40(%rbp,%rax,4),%esi
lea    0xea2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x48(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x48(%rbp)
jmp    1173 <main+0x43>
lea    0xe89(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%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 <merge_sort@plt>
mov    (%rsp),%esi
lea    0xebf(%rip),%rbx
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x4(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x8(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x10(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x14(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x18(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x1c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x20(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x24(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x28(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x2c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.A = [12 x i32] [i32 5, i32 0, i32 2, i32 4, i32 5, i32 7, i32 1, i32 6, i32 3, i32 6, i32 2, i32 9]
@.str = [3 x i8] c"%d\00"
@.str.1 = [2 x i8] c"\0A\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 @merge_sort(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 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@__const.main.A = [12 x i32] [i32 5, i32 0, i32 2, i32 4, i32 5, i32 7, i32 1, i32 6, i32 3, i32 6, i32 2, i32 9]
@.str = [3 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 @merge_sort(i32* %3, i32 0, i32 11)
%5 = load i32, i32* %3
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32 %38)
%40 = call i32 @putchar(i32 10)
ret i32 0
}