#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*/ atoi(char *);
int errno;
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ printf(char *, ...);
int tcpconn(char *, int /*<<< orphan*/, int /*<<< orphan*/);
int main(int argc, char **argv) {
  int sock;
  if (argc != 4) {
    printf("Usage: %s <ip> <port> <max seconds>\n", argv[0]);
    exit(1);
  }
  sock = tcpconn(argv[1], atoi(argv[2]), atoi(argv[3]));
  if (sock == -1)
    printf("connect error(%d)\n", errno);
  else
    printf("connect success. sock = %d\n", sock);
  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   $0x4,-0x8(%rbp)
je     117f <main+0x3f>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xe92(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x20(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rdi
call   1040 <atoi@plt>
mov    %eax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x18(%rax),%rdi
call   1040 <atoi@plt>
mov    -0x20(%rbp),%rdi
mov    -0x18(%rbp),%esi
mov    %eax,%edx
call   1060 <tcpconn@plt>
mov    %eax,-0x14(%rbp)
cmpl   $0xffffffff,-0x14(%rbp)
jne    11df <main+0x9f>
mov    0x2e16(%rip),%rax
mov    (%rax),%esi
lea    0xe52(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11f0 <main+0xb0>
mov    -0x14(%rbp),%esi
lea    0xe4f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
mov    %rsi,%rbx
cmp    $0x4,%edi
jne    119e <main+0x5e>
mov    0x8(%rbx),%r14
mov    0x10(%rbx),%rdi
call   1040 <atoi@plt>
mov    %eax,%ebp
mov    0x18(%rbx),%rdi
call   1040 <atoi@plt>
mov    %r14,%rdi
mov    %ebp,%esi
mov    %eax,%edx
call   1060 <tcpconn@plt>
cmp    $0xffffffff,%eax
je     1180 <main+0x40>
lea    0xebc(%rip),%rdi
mov    %eax,%esi
jmp    1190 <main+0x50>
mov    0x2e59(%rip),%rax
mov    (%rax),%esi
lea    0xe95(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret
mov    (%rbx),%rsi
lea    0xe58(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [37 x i8] c"Usage: %s <ip> <port> <max seconds>\0A\00"
@.str.1 = [19 x i8] c"connect error(%d)\0A\00"
@errno = global i32 0
@.str.2 = [28 x i8] c"connect success. sock = %d\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 ne i32 %7, 4
br i1 %8, label %9, label %15
9: ; preds = %2
%10 = load i8**, i8*** %5
%11 = getelementptr inbounds i8*, i8** %10, i64 0
%12 = load i8*, i8** %11
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i64 0, i64 0), i8* %12)
%14 = call i32 @exit(i32 1)
unreachable
15: ; preds = %2
%16 = load i8**, i8*** %5
%17 = getelementptr inbounds i8*, i8** %16, i64 1
%18 = load i8*, i8** %17
%19 = load i8**, i8*** %5
%20 = getelementptr inbounds i8*, i8** %19, i64 2
%21 = load i8*, i8** %20
%22 = call i32 @atoi(i8* %21)
%23 = load i8**, i8*** %5
%24 = getelementptr inbounds i8*, i8** %23, i64 3
%25 = load i8*, i8** %24
%26 = call i32 @atoi(i8* %25)
%27 = call i32 @tcpconn(i8* %18, i32 %22, i32 %26)
store i32 %27, i32* %6
%28 = load i32, i32* %6
%29 = icmp eq i32 %28, -1
br i1 %29, label %30, label %33
30: ; preds = %15
%31 = load i32, i32* @errno
%32 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %31)
br label %36
33: ; preds = %15
%34 = load i32, i32* %6
%35 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.2, i64 0, i64 0), i32 %34)
br label %36
36: ; preds = %33, %30
ret i32 0
}

LLVM IR (-O2):
@.str = [37 x i8] c"Usage: %s <ip> <port> <max seconds>\0A\00"
@.str.1 = [19 x i8] c"connect error(%d)\0A\00"
@errno = global i32 0
@.str.2 = [28 x i8] c"connect success. sock = %d\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 4
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 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 = getelementptr inbounds i8*, i8** %1, i64 2
%12 = load i8*, i8** %11
%13 = tail call i32 @atoi(i8* %12)
%14 = getelementptr inbounds i8*, i8** %1, i64 3
%15 = load i8*, i8** %14
%16 = tail call i32 @atoi(i8* %15)
%17 = tail call i32 @tcpconn(i8* %10, i32 %13, i32 %16)
%18 = icmp eq i32 %17, -1
br i1 %18, label %19, label %22
19: ; preds = %8
%20 = load i32, i32* @errno
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %20)
br label %24
22: ; preds = %8
%23 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.2, i64 0, i64 0), i32 %17)
br label %24
24: ; preds = %22, %19
ret i32 0
}