#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);
int /*<<< orphan*/ printf(char *, int);
int main() {
  int a[] = {'v', 'e', 'u', 'p', 'F', 'f', 'b', 'A', 'a'};
  int i;
  merge_sort(a, sizeof(a) / sizeof(int));
  for (i = 0; i < sizeof(a) / sizeof(int); i++) {
    printf("%c ", 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    $0x24,%edx
call   1040 <memcpy@plt>
lea    -0x30(%rbp),%rdi
mov    $0x9,%esi
call   1050 <merge_sort@plt>
movl   $0x0,-0x34(%rbp)
movslq -0x34(%rbp),%rax
cmp    $0x9,%rax
jae    1199 <main+0x69>
movslq -0x34(%rbp),%rax
mov    -0x30(%rbp,%rax,4),%esi
lea    0xe9e(%rip),%rdi
call   1030 <printf@plt>
mov    -0x34(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x34(%rbp)
jmp    1169 <main+0x39>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
mov    0xef5(%rip),%eax
mov    %eax,0x20(%rsp)
movaps 0xeda(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movaps 0xebe(%rip),%xmm0
movaps %xmm0,(%rsp)
mov    %rsp,%rdi
mov    $0x9,%esi
call   1040 <merge_sort@plt>
mov    (%rsp),%esi
lea    0xec7(%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>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.a = [9 x i32] [i32 118, i32 101, i32 117, i32 112, i32 70, i32 102, i32 98, i32 65, i32 97]
@.str = [4 x i8] c"%c \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [9 x i32]
%3 = alloca i32
store i32 0, i32* %1
%4 = bitcast [9 x i32]* %2 to i8*
%5 = getelementptr inbounds [9 x i32], [9 x i32]* %2, i64 0, i64 0
%6 = call i32 @merge_sort(i32* %5, i32 9)
store i32 0, i32* %3
br label %7
7: ; preds = %17, %0
%8 = load i32, i32* %3
%9 = sext i32 %8 to i64
%10 = icmp ult i64 %9, 9
br i1 %10, label %11, label %20
11: ; preds = %7
%12 = load i32, i32* %3
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds [9 x i32], [9 x i32]* %2, i64 0, i64 %13
%15 = load i32, i32* %14
%16 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %15)
br label %17
17: ; preds = %11
%18 = load i32, i32* %3
%19 = add nsw i32 %18, 1
store i32 %19, i32* %3
br label %7
20: ; preds = %7
ret i32 0
}

LLVM IR (-O2):
@__const.main.a = [9 x i32] [i32 118, i32 101, i32 117, i32 112, i32 70, i32 102, i32 98, i32 65, i32 97]
@.str = [4 x i8] c"%c \00"
define i32 @main() {
%1 = alloca [9 x i32]
%2 = bitcast [9 x i32]* %1 to i8*
%3 = getelementptr inbounds [9 x i32], [9 x i32]* %1, i64 0, i64 0
%4 = call i32 @merge_sort(i32* %3, i32 9)
%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 [9 x i32], [9 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 [9 x i32], [9 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 [9 x i32], [9 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 [9 x i32], [9 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 [9 x i32], [9 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 [9 x i32], [9 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 [9 x i32], [9 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 [9 x i32], [9 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)
ret i32 0
}