#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 atoi(char *);
int /*<<< orphan*/ exit(int);
int *gen(int);
int /*<<< orphan*/ out(int, int *);
int /*<<< orphan*/ printf(char *, char *);
int *ran(int, int *);
int main(int argc, char *argv[]) {
  if (argc != 2) {
    printf("[USAGE] %s [int]\n", argv[0]);
    exit(-1);
  }
  int *a, n = atoi(argv[1]);
  a = gen(n);
  a = ran(n, a);
  out(n, a);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     119d <main+0x3d>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xe72(%rip),%rdi
call   1030 <printf@plt>
mov    $0xffffffff,%edi
call   1070 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1060 <atoi@plt>
mov    %eax,-0x1c(%rbp)
mov    -0x1c(%rbp),%edi
call   1040 <gen@plt>
mov    %rax,-0x18(%rbp)
mov    -0x1c(%rbp),%edi
mov    -0x18(%rbp),%rsi
call   1050 <ran@plt>
mov    %rax,-0x18(%rbp)
mov    -0x1c(%rbp),%edi
mov    -0x18(%rbp),%rsi
call   1080 <out@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x2,%edi
jne    1190 <main+0x30>
mov    0x8(%rsi),%rdi
call   1060 <atoi@plt>
mov    %eax,%ebx
mov    %eax,%edi
call   1040 <gen@plt>
mov    %ebx,%edi
mov    %rax,%rsi
call   1050 <ran@plt>
mov    %ebx,%edi
mov    %rax,%rsi
call   1080 <out@plt>
xor    %eax,%eax
pop    %rbx
ret
mov    (%rsi),%rsi
lea    0xe66(%rip),%rdi
call   1030 <printf@plt>
mov    $0xffffffff,%edi
call   1070 <exit@plt>

LLVM IR (-O0):
@.str = [18 x i8] c"[USAGE] %s [int]\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32*
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp ne i32 %8, 2
br i1 %9, label %10, label %16
10: ; preds = %2
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 0
%13 = load i8*, i8** %12
%14 = call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i8* %13)
%15 = call i32 @exit(i32 -1)
unreachable
16: ; preds = %2
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 1
%19 = load i8*, i8** %18
%20 = call i32 @atoi(i8* %19)
store i32 %20, i32* %7
%21 = load i32, i32* %7
%22 = call i32* @gen(i32 %21)
store i32* %22, i32** %6
%23 = load i32, i32* %7
%24 = load i32*, i32** %6
%25 = call i32* @ran(i32 %23, i32* %24)
store i32* %25, i32** %6
%26 = load i32, i32* %7
%27 = load i32*, i32** %6
%28 = call i32 @out(i32 %26, i32* %27)
ret i32 0
}

LLVM IR (-O2):
@.str = [18 x i8] c"[USAGE] %s [int]\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = tail call i32 @exit(i32 -1)
unreachable
8: ; preds = %2
%9 = getelementptr inbounds i8*, i8** %1, i64 1
%10 = load i8*, i8** %9
%11 = tail call i32 @atoi(i8* %10)
%12 = tail call i32* @gen(i32 %11)
%13 = tail call i32* @ran(i32 %11, i32* %12)
%14 = tail call i32 @out(i32 %11, i32* %13)
ret i32 0
}