#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*/ sleep(int);
int main() {
  int secs = 30;
  while (secs--)
    sleep(1);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1e,-0x8(%rbp)
mov    -0x8(%rbp),%eax
mov    %eax,%ecx
add    $0xffffffff,%ecx
mov    %ecx,-0x8(%rbp)
cmp    $0x0,%eax
je     1149 <main+0x39>
mov    $0x1,%edi
call   1030 <sleep@plt>
jmp    1126 <main+0x16>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
mov    $0x1,%edi
call   1030 <sleep@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 30, i32* %2
br label %3
3: ; preds = %7, %0
%4 = load i32, i32* %2
%5 = add nsw i32 %4, -1
store i32 %5, i32* %2
%6 = icmp ne i32 %4, 0
br i1 %6, label %7, label %9
7: ; preds = %3
%8 = call i32 @sleep(i32 1)
br label %3
9: ; preds = %3
%10 = load i32, i32* %1
ret i32 %10
}

LLVM IR (-O2):
define i32 @main() {
%1 = tail call i32 @sleep(i32 1)
%2 = tail call i32 @sleep(i32 1)
%3 = tail call i32 @sleep(i32 1)
%4 = tail call i32 @sleep(i32 1)
%5 = tail call i32 @sleep(i32 1)
%6 = tail call i32 @sleep(i32 1)
%7 = tail call i32 @sleep(i32 1)
%8 = tail call i32 @sleep(i32 1)
%9 = tail call i32 @sleep(i32 1)
%10 = tail call i32 @sleep(i32 1)
%11 = tail call i32 @sleep(i32 1)
%12 = tail call i32 @sleep(i32 1)
%13 = tail call i32 @sleep(i32 1)
%14 = tail call i32 @sleep(i32 1)
%15 = tail call i32 @sleep(i32 1)
%16 = tail call i32 @sleep(i32 1)
%17 = tail call i32 @sleep(i32 1)
%18 = tail call i32 @sleep(i32 1)
%19 = tail call i32 @sleep(i32 1)
%20 = tail call i32 @sleep(i32 1)
%21 = tail call i32 @sleep(i32 1)
%22 = tail call i32 @sleep(i32 1)
%23 = tail call i32 @sleep(i32 1)
%24 = tail call i32 @sleep(i32 1)
%25 = tail call i32 @sleep(i32 1)
%26 = tail call i32 @sleep(i32 1)
%27 = tail call i32 @sleep(i32 1)
%28 = tail call i32 @sleep(i32 1)
%29 = tail call i32 @sleep(i32 1)
%30 = tail call i32 @sleep(i32 1)
ret i32 0
}