#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*/ vals;

/* Variables and functions */
int /*<<< orphan*/ print_array(int *, int);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ quicksort(int *, int);
int main() {
  int vals[] = {6, 1, 1, 7, 9, 1, 6, 9, 0, 2, 4, 7, 4, 5, 9, 6, 8, 3};
  int vals_len = sizeof(vals) / sizeof(int);
  printf("original: ");
  print_array(vals, vals_len);
  quicksort(vals, vals_len);
  printf("  sorted: ");
  print_array(vals, vals_len);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x60,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x50(%rbp),%rdi
lea    0xea6(%rip),%rsi
mov    $0x48,%edx
call   1060 <memcpy@plt>
movl   $0x12,-0x54(%rbp)
lea    0xed6(%rip),%rdi
call   1050 <printf@plt>
lea    -0x50(%rbp),%rdi
mov    -0x54(%rbp),%esi
call   1030 <print_array@plt>
lea    -0x50(%rbp),%rdi
mov    -0x54(%rbp),%esi
call   1040 <quicksort@plt>
lea    0xebd(%rip),%rdi
call   1050 <printf@plt>
lea    -0x50(%rbp),%rdi
mov    -0x54(%rbp),%esi
call   1030 <print_array@plt>
xor    %eax,%eax
add    $0x60,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x50,%rsp
mov    0xf04(%rip),%rax
mov    %rax,0x40(%rsp)
movaps 0xee8(%rip),%xmm0
movaps %xmm0,0x30(%rsp)
movaps 0xecc(%rip),%xmm0
movaps %xmm0,0x20(%rsp)
movaps 0xeb0(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movaps 0xe94(%rip),%xmm0
movaps %xmm0,(%rsp)
lea    0xed1(%rip),%rdi
call   1050 <printf@plt>
mov    %rsp,%rbx
mov    %rbx,%rdi
mov    $0x12,%esi
call   1030 <print_array@plt>
mov    %rbx,%rdi
mov    $0x12,%esi
call   1040 <quicksort@plt>
lea    0xeb3(%rip),%rdi
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x12,%esi
call   1030 <print_array@plt>
xor    %eax,%eax
add    $0x50,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.vals = [18 x i32] [i32 6, i32 1, i32 1, i32 7, i32 9, i32 1, i32 6, i32 9, i32 0, i32 2, i32 4, i32 7, i32 4, i32 5, i32 9, i32 6, i32 8, i32 3]
@.str = [11 x i8] c"original: \00"
@.str.1 = [11 x i8] c" sorted: \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [18 x i32]
%3 = alloca i32
store i32 0, i32* %1
%4 = bitcast [18 x i32]* %2 to i8*
store i32 18, i32* %3
%5 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0))
%6 = getelementptr inbounds [18 x i32], [18 x i32]* %2, i64 0, i64 0
%7 = load i32, i32* %3
%8 = call i32 @print_array(i32* %6, i32 %7)
%9 = getelementptr inbounds [18 x i32], [18 x i32]* %2, i64 0, i64 0
%10 = load i32, i32* %3
%11 = call i32 @quicksort(i32* %9, i32 %10)
%12 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%13 = getelementptr inbounds [18 x i32], [18 x i32]* %2, i64 0, i64 0
%14 = load i32, i32* %3
%15 = call i32 @print_array(i32* %13, i32 %14)
ret i32 0
}

LLVM IR (-O2):
@__const.main.vals = [18 x i32] [i32 6, i32 1, i32 1, i32 7, i32 9, i32 1, i32 6, i32 9, i32 0, i32 2, i32 4, i32 7, i32 4, i32 5, i32 9, i32 6, i32 8, i32 3]
@.str = [11 x i8] c"original: \00"
@.str.1 = [11 x i8] c" sorted: \00"
define i32 @main() {
%1 = alloca [18 x i32]
%2 = bitcast [18 x i32]* %1 to i8*
%3 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0))
%4 = getelementptr inbounds [18 x i32], [18 x i32]* %1, i64 0, i64 0
%5 = call i32 @print_array(i32* %4, i32 18)
%6 = call i32 @quicksort(i32* %4, i32 18)
%7 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @print_array(i32* %4, i32 18)
ret i32 0
}