#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 main(int argc, char **argv) {
  int i;
  char hello[20] = "Hello world!";
  printf("ONLINE_JUDGE not defined\n");
  if (argc > 1) {
    printf("%d arguments:", argc - 1);
    for (i = 1; i < argc; i++)
      printf(" '%s'", argv[i]);
    printf("\n");
  }
  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)
mov    0xed3(%rip),%rax
mov    %rax,-0x30(%rbp)
mov    0xed0(%rip),%rax
mov    %rax,-0x28(%rbp)
mov    0xece(%rip),%eax
mov    %eax,-0x20(%rbp)
lea    0xec8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x1,-0x8(%rbp)
jle    11ba <main+0xaa>
mov    -0x8(%rbp),%esi
sub    $0x1,%esi
lea    0xec4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    11ac <main+0x9c>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rsi
lea    0xea5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1178 <main+0x68>
lea    0xe79(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r15
mov    %edi,%r14d
lea    0xecf(%rip),%rdi
call   1040 <puts@plt>
cmp    $0x2,%r14d
jl     11a1 <main+0x71>
lea    -0x1(%r14),%esi
lea    0xea5(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %r14d,%r12d
mov    $0x1,%ebx
lea    0xe9d(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
mov    (%r15,%rbx,8),%rsi
mov    %r14,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1180 <main+0x50>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@__const.main.hello = [20 x i8] c"Hello world!\00\00\00\00\00\00\00\00"
@.str = [26 x i8] c"ONLINE_JUDGE not defined\0A\00"
@.str.1 = [14 x i8] c"%d arguments:\00"
@.str.2 = [6 x i8] c" '%s'\00"
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca [20 x i8]
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = bitcast [20 x i8]* %7 to i8*
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%10 = load i32, i32* %4
%11 = icmp sgt i32 %10, 1
br i1 %11, label %12, label %32
12: ; preds = %2
%13 = load i32, i32* %4
%14 = sub nsw i32 %13, 1
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %14)
store i32 1, i32* %6
br label %16
16: ; preds = %27, %12
%17 = load i32, i32* %6
%18 = load i32, i32* %4
%19 = icmp slt i32 %17, %18
br i1 %19, label %20, label %30
20: ; preds = %16
%21 = load i8**, i8*** %5
%22 = load i32, i32* %6
%23 = sext i32 %22 to i64
%24 = getelementptr inbounds i8*, i8** %21, i64 %23
%25 = load i8*, i8** %24
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8* %25)
br label %27
27: ; preds = %20
%28 = load i32, i32* %6
%29 = add nsw i32 %28, 1
store i32 %29, i32* %6
br label %16
30: ; preds = %16
%31 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %32
32: ; preds = %30, %2
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [14 x i8] c"%d arguments:\00"
@.str.2 = [6 x i8] c" '%s'\00"
@str = [25 x i8] c"ONLINE_JUDGE not defined\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str, i64 0, i64 0))
%4 = icmp sgt i32 %0, 1
br i1 %4, label %5, label %18
5: ; preds = %2
%6 = add nsw i32 %0, -1
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %6)
%8 = zext i32 %0 to i64
br label %9
9: ; preds = %5, %9
%10 = phi i64 [ 1, %5 ], [ %14, %9 ]
%11 = getelementptr inbounds i8*, i8** %1, i64 %10
%12 = load i8*, i8** %11
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8* %12)
%14 = add nuw nsw i64 %10, 1
%15 = icmp eq i64 %14, %8
br i1 %15, label %16, label %9
16: ; preds = %9
%17 = tail call i32 @putchar(i32 10)
br label %18
18: ; preds = %16, %2
ret i32 0
}