#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 */
typedef int /*<<< orphan*/ uint16_t;

/* Variables and functions */
int /*<<< orphan*/ AF_INET;
int /*<<< orphan*/ SOCK_DGRAM;
int _connect(int, char const *, char const *, int /*<<< orphan*/, int);
int socket(int /*<<< orphan*/, int /*<<< orphan*/, int /*<<< orphan*/);
int connect_u(const char *src, const char *dst, uint16_t port, int blocking) {
  int sock = socket(AF_INET, SOCK_DGRAM, 0);
  if (sock < 0) {
    return -1;
  }
  return _connect(sock, src, dst, port, blocking);
}


x86 assembly (clang, -O0):
<connect_u>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    %edx,-0x1c(%rbp)
mov    %ecx,-0x20(%rbp)
mov    0x2eab(%rip),%rax
mov    (%rax),%edi
mov    0x2e9a(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   1040 <socket@plt>
mov    %eax,-0x24(%rbp)
cmpl   $0x0,-0x24(%rbp)
jge    1168 <connect_u+0x48>
movl   $0xffffffff,-0x4(%rbp)
jmp    1182 <connect_u+0x62>
mov    -0x24(%rbp),%edi
mov    -0x10(%rbp),%rsi
mov    -0x18(%rbp),%rdx
mov    -0x1c(%rbp),%ecx
mov    -0x20(%rbp),%r8d
call   1030 <_connect@plt>
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<connect_u>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %ecx,%r14d
mov    %edx,%r15d
mov    %rsi,%rbx
mov    %rdi,%rbp
mov    0x2eae(%rip),%rax
mov    (%rax),%edi
mov    0x2e9d(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   1040 <socket@plt>
test   %eax,%eax
js     116d <connect_u+0x4d>
mov    %eax,%edi
mov    %rbp,%rsi
mov    %rbx,%rdx
mov    %r15d,%ecx
mov    %r14d,%r8d
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <_connect@plt>
mov    $0xffffffff,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@AF_INET = global i32 0
@SOCK_DGRAM = global i32 0
define i32 @connect_u(i8* %0, i8* %1, i32 %2, i32 %3) {
%5 = alloca i32
%6 = alloca i8*
%7 = alloca i8*
%8 = alloca i32
%9 = alloca i32
%10 = alloca i32
store i8* %0, i8** %6
store i8* %1, i8** %7
store i32 %2, i32* %8
store i32 %3, i32* %9
%11 = load i32, i32* @AF_INET
%12 = load i32, i32* @SOCK_DGRAM
%13 = call i32 @socket(i32 %11, i32 %12, i32 0)
store i32 %13, i32* %10
%14 = load i32, i32* %10
%15 = icmp slt i32 %14, 0
br i1 %15, label %16, label %17
16: ; preds = %4
store i32 -1, i32* %5
br label %24
17: ; preds = %4
%18 = load i32, i32* %10
%19 = load i8*, i8** %6
%20 = load i8*, i8** %7
%21 = load i32, i32* %8
%22 = load i32, i32* %9
%23 = call i32 @_connect(i32 %18, i8* %19, i8* %20, i32 %21, i32 %22)
store i32 %23, i32* %5
br label %24
24: ; preds = %17, %16
%25 = load i32, i32* %5
ret i32 %25
}

LLVM IR (-O2):
@AF_INET = global i32 0
@SOCK_DGRAM = global i32 0
define i32 @connect_u(i8* %0, i8* %1, i32 %2, i32 %3) {
%5 = load i32, i32* @AF_INET
%6 = load i32, i32* @SOCK_DGRAM
%7 = tail call i32 @socket(i32 %5, i32 %6, i32 0)
%8 = icmp slt i32 %7, 0
br i1 %8, label %11, label %9
9: ; preds = %4
%10 = tail call i32 @_connect(i32 %7, i8* %0, i8* %1, i32 %2, i32 %3)
br label %11
11: ; preds = %4, %9
%12 = phi i32 [ %10, %9 ], [ -1, %4 ]
ret i32 %12
}