#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*/ AF_INET;
int EXIT_FAILURE;
int EXIT_SUCCESS;
int /*<<< orphan*/ IPPROTO_TCP;
int /*<<< orphan*/ O_CLOEXEC;
int /*<<< orphan*/ SOCK_STREAM;
int dup3(int, int, int /*<<< orphan*/);
int /*<<< orphan*/ errno;
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int socket(int /*<<< orphan*/, int /*<<< orphan*/, int /*<<< orphan*/);
int /*<<< orphan*/ stderr;
char *strerror(int /*<<< orphan*/);
int main(void) {
  int sock;
  if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
    fprintf(stderr, "socket() failed: %s\n.", strerror(errno));
    return (EXIT_FAILURE);
  }
  if (dup3(sock, 999999, O_CLOEXEC) != -1)
    return (EXIT_FAILURE);
  return (EXIT_SUCCESS);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e92(%rip),%rax
mov    (%rax),%edi
mov    0x2e69(%rip),%rax
mov    (%rax),%esi
mov    0x2e78(%rip),%rax
mov    (%rax),%edx
call   1060 <socket@plt>
mov    %eax,-0x8(%rbp)
cmp    $0x0,%eax
jge    11b8 <main+0x78>
mov    0x2e4e(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0xc(%rbp)
mov    0x2e32(%rip),%rax
mov    (%rax),%edi
call   1050 <strerror@plt>
mov    -0xc(%rbp),%edi
mov    %rax,%rdx
lea    0xe5e(%rip),%rsi
call   1040 <fprintf@plt>
mov    0x2e0a(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
jmp    11f4 <main+0xb4>
mov    -0x8(%rbp),%edi
mov    0x2dde(%rip),%rax
mov    (%rax),%edx
mov    $0xf423f,%esi
call   1030 <dup3@plt>
cmp    $0xffffffff,%eax
je     11e8 <main+0xa8>
mov    0x2dda(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
jmp    11f4 <main+0xb4>
mov    0x2dc1(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    0x2ea0(%rip),%rax
mov    (%rax),%edi
mov    0x2e77(%rip),%rax
mov    (%rax),%esi
mov    0x2e86(%rip),%rax
mov    (%rax),%edx
call   1060 <socket@plt>
test   %eax,%eax
js     1188 <main+0x48>
mov    0x2e34(%rip),%rcx
mov    (%rcx),%edx
mov    %eax,%edi
mov    $0xf423f,%esi
call   1030 <dup3@plt>
cmp    $0xffffffff,%eax
jne    11b0 <main+0x70>
mov    0x2e2a(%rip),%rax
jmp    11b7 <main+0x77>
mov    0x2e41(%rip),%rax
mov    (%rax),%ebx
mov    0x2e28(%rip),%rax
mov    (%rax),%edi
call   1050 <strerror@plt>
lea    0xe5a(%rip),%rsi
mov    %ebx,%edi
mov    %rax,%rdx
call   1040 <fprintf@plt>
mov    0x2e01(%rip),%rax
mov    (%rax),%eax
pop    %rbx
ret

LLVM IR (-O0):
@AF_INET = global i32 0
@SOCK_STREAM = global i32 0
@IPPROTO_TCP = global i32 0
@stderr = global i32 0
@.str = [22 x i8] c"socket() failed: %s\0A.\00"
@errno = global i32 0
@EXIT_FAILURE = global i32 0
@O_CLOEXEC = global i32 0
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = load i32, i32* @AF_INET
%4 = load i32, i32* @SOCK_STREAM
%5 = load i32, i32* @IPPROTO_TCP
%6 = call i32 @socket(i32 %3, i32 %4, i32 %5)
store i32 %6, i32* %2
%7 = icmp slt i32 %6, 0
br i1 %7, label %8, label %14
8: ; preds = %0
%9 = load i32, i32* @stderr
%10 = load i32, i32* @errno
%11 = call i8* @strerror(i32 %10)
%12 = call i32 @fprintf(i32 %9, i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0), i8* %11)
%13 = load i32, i32* @EXIT_FAILURE
store i32 %13, i32* %1
br label %23
14: ; preds = %0
%15 = load i32, i32* %2
%16 = load i32, i32* @O_CLOEXEC
%17 = call i32 @dup3(i32 %15, i32 999999, i32 %16)
%18 = icmp ne i32 %17, -1
br i1 %18, label %19, label %21
19: ; preds = %14
%20 = load i32, i32* @EXIT_FAILURE
store i32 %20, i32* %1
br label %23
21: ; preds = %14
%22 = load i32, i32* @EXIT_SUCCESS
store i32 %22, i32* %1
br label %23
23: ; preds = %21, %19, %8
%24 = load i32, i32* %1
ret i32 %24
}

LLVM IR (-O2):
@AF_INET = global i32 0
@SOCK_STREAM = global i32 0
@IPPROTO_TCP = global i32 0
@stderr = global i32 0
@.str = [22 x i8] c"socket() failed: %s\0A.\00"
@errno = global i32 0
@EXIT_FAILURE = global i32 0
@O_CLOEXEC = global i32 0
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = load i32, i32* @AF_INET
%2 = load i32, i32* @SOCK_STREAM
%3 = load i32, i32* @IPPROTO_TCP
%4 = tail call i32 @socket(i32 %1, i32 %2, i32 %3)
%5 = icmp slt i32 %4, 0
br i1 %5, label %6, label %11
6: ; preds = %0
%7 = load i32, i32* @stderr
%8 = load i32, i32* @errno
%9 = tail call i8* @strerror(i32 %8)
%10 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0), i8* %9)
br label %16
11: ; preds = %0
%12 = load i32, i32* @O_CLOEXEC
%13 = tail call i32 @dup3(i32 %4, i32 999999, i32 %12)
%14 = icmp eq i32 %13, -1
%15 = select i1 %14, i32* @EXIT_SUCCESS, i32* @EXIT_FAILURE
br label %16
16: ; preds = %11, %6
%17 = phi i32* [ @EXIT_FAILURE, %6 ], [ %15, %11 ]
%18 = load i32, i32* %17
ret i32 %18
}