#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 /*<<< orphan*/);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ sleep(int);
int /*<<< orphan*/ stderr;
int main(int argc, char *argv[]) {
  if (argc <= 1) {
    fprintf(stderr, "sleep: missing opperand\n");
    exit(0);
  }
  if (argc <= 2) {
    int count = atoi(argv[1]);
    sleep(count);
  }
  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   $0x1,-0x8(%rbp)
jg     117c <main+0x3c>
mov    0x2e79(%rip),%rax
mov    (%rax),%edi
lea    0xe90(%rip),%rsi
call   1030 <fprintf@plt>
xor    %edi,%edi
call   1050 <exit@plt>
cmpl   $0x2,-0x8(%rbp)
jg     119e <main+0x5e>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1040 <atoi@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%edi
call   1060 <sleep@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
cmp    $0x1,%edi
jle    115f <main+0x1f>
cmp    $0x2,%edi
jne    115b <main+0x1b>
mov    0x8(%rsi),%rdi
call   1040 <atoi@plt>
mov    %eax,%edi
call   1060 <sleep@plt>
xor    %eax,%eax
pop    %rcx
ret
mov    0x2e7a(%rip),%rax
mov    (%rax),%edi
lea    0xe91(%rip),%rsi
call   1030 <fprintf@plt>
xor    %edi,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [25 x i8] c"sleep: missing opperand\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp sle i32 %7, 1
br i1 %8, label %9, label %13
9: ; preds = %2
%10 = load i32, i32* @stderr
%11 = call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0))
%12 = call i32 @exit(i32 0)
unreachable
13: ; preds = %2
%14 = load i32, i32* %4
%15 = icmp sle i32 %14, 2
br i1 %15, label %16, label %23
16: ; preds = %13
%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* %6
%21 = load i32, i32* %6
%22 = call i32 @sleep(i32 %21)
br label %23
23: ; preds = %16, %13
ret i32 0
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [25 x i8] c"sleep: missing opperand\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %8
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0))
%7 = tail call i32 @exit(i32 0)
unreachable
8: ; preds = %2
%9 = icmp eq i32 %0, 2
br i1 %9, label %10, label %15
10: ; preds = %8
%11 = getelementptr inbounds i8*, i8** %1, i64 1
%12 = load i8*, i8** %11
%13 = tail call i32 @atoi(i8* %12)
%14 = tail call i32 @sleep(i32 %13)
br label %15
15: ; preds = %10, %8
ret i32 0
}