#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 */

/* Variables and functions */
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ quicksort(int *, int);
int /*<<< orphan*/ scanf(char *, int *);
int main(int argc, char const *argv[]) {
  int size;
  printf("%s", "Enter the length of your array:");
  scanf("%d", &size);
  int i;
  int array[size];
  printf("%s\n", "Enter the numbers in your array:");
  for (i = 0; i < size; i++) {
    scanf("%d", &array[i]);
  }
  quicksort(array, size);
  printf("%s\n", "After quicksort:");
  for (i = 0; i < size; i++) {
    printf("%d\n", array[i]);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xeb3(%rip),%rdi
lea    0xeaf(%rip),%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec1(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x14(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x20(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,-0x30(%rbp)
mov    %rcx,%rsp
mov    %rax,-0x28(%rbp)
lea    0xe8d(%rip),%rdi
lea    0xe8a(%rip),%rsi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    11e3 <main+0xb3>
mov    -0x30(%rbp),%rsi
movslq -0x18(%rbp),%rax
shl    $0x2,%rax
add    %rax,%rsi
lea    0xe53(%rip),%rdi
call   1050 <scanf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    11ae <main+0x7e>
mov    -0x30(%rbp),%rdi
mov    -0x14(%rbp),%esi
call   1030 <quicksort@plt>
lea    0xe30(%rip),%rdi
lea    0xe4e(%rip),%rsi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    123e <main+0x10e>
mov    -0x30(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe33(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    120b <main+0xdb>
movl   $0x0,-0x4(%rbp)
mov    -0x20(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rbp,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
mov    %rsp,%rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
lea    0xeab(%rip),%rdi
lea    0xea7(%rip),%rsi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xeb9(%rip),%rdi
lea    -0x2c(%rbp),%rsi
call   1060 <scanf@plt>
mov    %rsp,%r12
mov    -0x2c(%rbp),%eax
mov    %rsp,%r15
lea    0xf(,%rax,4),%rax
and    $0xfffffffffffffff0,%rax
sub    %rax,%r15
mov    %r15,%rsp
lea    0xe91(%rip),%rdi
call   1030 <puts@plt>
mov    -0x2c(%rbp),%esi
test   %esi,%esi
jle    11cc <main+0x8c>
xor    %r13d,%r13d
lea    0xe78(%rip),%r14
mov    %r15,%rbx
xchg   %ax,%ax
mov    %r14,%rdi
mov    %rbx,%rsi
call   1060 <scanf@plt>
add    $0x1,%r13
movslq -0x2c(%rbp),%rsi
add    $0x4,%rbx
cmp    %rsi,%r13
jl     11b0 <main+0x70>
mov    %r15,%rdi
call   1040 <quicksort@plt>
lea    0xe6c(%rip),%rdi
call   1030 <puts@plt>
cmpl   $0x0,-0x2c(%rbp)
jle    120b <main+0xcb>
lea    0xe6b(%rip),%r14
xor    %ebx,%ebx
nop
mov    (%r15,%rbx,4),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbx
movslq -0x2c(%rbp),%rax
cmp    %rax,%rbx
jl     11f0 <main+0xb0>
mov    %r12,%rsp
xor    %eax,%eax
lea    -0x28(%rbp),%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%s\00"
@.str.1 = [32 x i8] c"Enter the length of your array:\00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [4 x i8] c"%s\0A\00"
@.str.4 = [33 x i8] c"Enter the numbers in your array:\00"
@.str.5 = [17 x i8] c"After quicksort:\00"
@.str.6 = [4 x i8] c"%d\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
%8 = alloca i8*
%9 = alloca i64
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.1, i64 0, i64 0))
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %6)
%12 = load i32, i32* %6
%13 = zext i32 %12 to i64
%14 = call i8* @llvm.stacksave()
store i8* %14, i8** %8
%15 = alloca i32, i64 %13
store i64 %13, i64* %9
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.4, i64 0, i64 0))
store i32 0, i32* %7
br label %17
17: ; preds = %26, %2
%18 = load i32, i32* %7
%19 = load i32, i32* %6
%20 = icmp slt i32 %18, %19
br i1 %20, label %21, label %29
21: ; preds = %17
%22 = load i32, i32* %7
%23 = sext i32 %22 to i64
%24 = getelementptr inbounds i32, i32* %15, i64 %23
%25 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %24)
br label %26
26: ; preds = %21
%27 = load i32, i32* %7
%28 = add nsw i32 %27, 1
store i32 %28, i32* %7
br label %17
29: ; preds = %17
%30 = load i32, i32* %6
%31 = call i32 @quicksort(i32* %15, i32 %30)
%32 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.5, i64 0, i64 0))
store i32 0, i32* %7
br label %33
33: ; preds = %43, %29
%34 = load i32, i32* %7
%35 = load i32, i32* %6
%36 = icmp slt i32 %34, %35
br i1 %36, label %37, label %46
37: ; preds = %33
%38 = load i32, i32* %7
%39 = sext i32 %38 to i64
%40 = getelementptr inbounds i32, i32* %15, i64 %39
%41 = load i32, i32* %40
%42 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.6, i64 0, i64 0), i32 %41)
br label %43
43: ; preds = %37
%44 = load i32, i32* %7
%45 = add nsw i32 %44, 1
store i32 %45, i32* %7
br label %33
46: ; preds = %33
store i32 0, i32* %3
%47 = load i8*, i8** %8
%48 = load i32, i32* %3
ret i32 %48
}

LLVM IR (-O2):
@.str = [3 x i8] c"%s\00"
@.str.1 = [32 x i8] c"Enter the length of your array:\00"
@.str.2 = [3 x i8] c"%d\00"
@.str.4 = [33 x i8] c"Enter the numbers in your array:\00"
@.str.5 = [17 x i8] c"After quicksort:\00"
@.str.6 = [4 x i8] c"%d\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = bitcast i32* %3 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %3)
%7 = load i32, i32* %3
%8 = zext i32 %7 to i64
%9 = call i8* @llvm.stacksave()
%10 = alloca i32, i64 %8
%11 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.4, i64 0, i64 0))
%12 = load i32, i32* %3
%13 = icmp sgt i32 %12, 0
br i1 %13, label %14, label %22
14: ; preds = %2, %14
%15 = phi i64 [ %18, %14 ], [ 0, %2 ]
%16 = getelementptr inbounds i32, i32* %10, i64 %15
%17 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %16)
%18 = add nuw nsw i64 %15, 1
%19 = load i32, i32* %3
%20 = sext i32 %19 to i64
%21 = icmp slt i64 %18, %20
br i1 %21, label %14, label %22
22: ; preds = %14, %2
%23 = phi i32 [ %12, %2 ], [ %19, %14 ]
%24 = call i32 @quicksort(i32* %10, i32 %23)
%25 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.5, i64 0, i64 0))
%26 = load i32, i32* %3
%27 = icmp sgt i32 %26, 0
br i1 %27, label %28, label %37
28: ; preds = %22, %28
%29 = phi i64 [ %33, %28 ], [ 0, %22 ]
%30 = getelementptr inbounds i32, i32* %10, i64 %29
%31 = load i32, i32* %30
%32 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.6, i64 0, i64 0), i32 %31)
%33 = add nuw nsw i64 %29, 1
%34 = load i32, i32* %3
%35 = sext i32 %34 to i64
%36 = icmp slt i64 %33, %35
br i1 %36, label %28, label %37
37: ; preds = %28, %22
ret i32 0
}