#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 */
typedef struct TYPE_2__ TYPE_1__;

/* Type definitions */
struct TYPE_2__ {
  int /*<<< orphan*/ s_addr;
};
struct sockaddr_in {
  int /*<<< orphan*/ sin_port;
  TYPE_1__ sin_addr;
  int /*<<< orphan*/ sin_family;
};
struct sockaddr {
  int dummy;
};
typedef int socklen_t;
typedef int /*<<< orphan*/ serv_addr;
typedef int /*<<< orphan*/ cli_addr;

/* Variables and functions */
int /*<<< orphan*/ AF_INET;
int /*<<< orphan*/ SOCK_STREAM;
int accept(int, struct sockaddr *, int *);
int /*<<< orphan*/ bind(int, struct sockaddr *, int);
int /*<<< orphan*/ htons(int);
int /*<<< orphan*/ inet_addr(char *);
int /*<<< orphan*/ listen(int, int);
int /*<<< orphan*/ memset(void *, int /*<<< orphan*/, int);
int /*<<< orphan*/ send(int, void *, size_t, int /*<<< orphan*/);
int socket(int /*<<< orphan*/, int /*<<< orphan*/, int /*<<< orphan*/);
int strlen(void *);
void *server_send_thread(void *message) {
  int sockfd = socket(AF_INET, SOCK_STREAM, 0);
  struct sockaddr_in serv_addr;
  memset((void *)&serv_addr, 0, sizeof(serv_addr));
  serv_addr.sin_family = AF_INET;
  serv_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
  serv_addr.sin_port = htons(25588);
  bind(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr));
  listen(sockfd, 5);
  struct sockaddr_in cli_addr;
  socklen_t clilen = sizeof(cli_addr);
  int cl = accept(sockfd, (struct sockaddr *)&cli_addr, &clilen);
  size_t messagelen = strlen(message) + 1;
  send(cl, message, messagelen, 0);
  return NULL;
}


x86 assembly (clang, -O0):
<server_send_thread>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2e45(%rip),%rax
mov    (%rax),%edi
mov    0x2e2c(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   10b0 <socket@plt>
mov    %eax,-0xc(%rbp)
lea    -0x18(%rbp),%rdi
xor    %esi,%esi
mov    $0xc,%edx
call   1060 <memset@plt>
mov    0x2e19(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x10(%rbp)
lea    0xe25(%rip),%rdi
call   1070 <inet_addr@plt>
mov    %eax,-0x14(%rbp)
mov    $0x63f4,%edi
call   1040 <htons@plt>
mov    %eax,-0x18(%rbp)
mov    -0xc(%rbp),%edi
lea    -0x18(%rbp),%rsi
mov    $0xc,%edx
call   1090 <bind@plt>
mov    -0xc(%rbp),%edi
mov    $0x5,%esi
call   1080 <listen@plt>
movl   $0xc,-0x2c(%rbp)
mov    -0xc(%rbp),%edi
lea    -0x28(%rbp),%rsi
lea    -0x2c(%rbp),%rdx
call   10a0 <accept@plt>
mov    %eax,-0x30(%rbp)
mov    -0x8(%rbp),%rdi
call   1030 <strlen@plt>
add    $0x1,%eax
cltq
mov    %rax,-0x38(%rbp)
mov    -0x30(%rbp),%edi
mov    -0x8(%rbp),%rsi
mov    -0x38(%rbp),%rdx
xor    %ecx,%ecx
call   1050 <send@plt>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<server_send_thread>:
push   %rbp
push   %r15
push   %r14
push   %rbx
sub    $0x28,%rsp
mov    %rdi,%r15
mov    0x2e44(%rip),%rbx
mov    (%rbx),%edi
mov    0x2e2b(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   10b0 <socket@plt>
mov    %eax,%ebp
lea    0x8(%rsp),%r14
mov    %r14,%rdi
xor    %esi,%esi
mov    $0xc,%edx
call   1060 <memset@plt>
mov    (%rbx),%eax
mov    %eax,0x10(%rsp)
lea    0xe27(%rip),%rdi
call   1070 <inet_addr@plt>
mov    %eax,0xc(%rsp)
mov    $0x63f4,%edi
call   1040 <htons@plt>
mov    %eax,0x8(%rsp)
mov    %ebp,%edi
mov    %r14,%rsi
mov    $0xc,%edx
call   1090 <bind@plt>
mov    %ebp,%edi
mov    $0x5,%esi
call   1080 <listen@plt>
movl   $0xc,0x4(%rsp)
lea    0x18(%rsp),%rsi
lea    0x4(%rsp),%rdx
mov    %ebp,%edi
call   10a0 <accept@plt>
mov    %eax,%ebp
mov    %r15,%rdi
call   1030 <strlen@plt>
add    $0x1,%eax
movslq %eax,%rdx
mov    %ebp,%edi
mov    %r15,%rsi
xor    %ecx,%ecx
call   1050 <send@plt>
xor    %eax,%eax
add    $0x28,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
%struct.sockaddr_in = type { i32, %struct.TYPE_2__, i32 }
%struct.TYPE_2__ = type { i32 }
%struct.sockaddr = type { i32 }
@AF_INET = global i32 0
@SOCK_STREAM = global i32 0
@.str = [10 x i8] c"127.0.0.1\00"
define i8* @server_send_thread(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
%4 = alloca %struct.sockaddr_in
%5 = alloca %struct.sockaddr_in
%6 = alloca i32
%7 = alloca i32
%8 = alloca i64
store i8* %0, i8** %2
%9 = load i32, i32* @AF_INET
%10 = load i32, i32* @SOCK_STREAM
%11 = call i32 @socket(i32 %9, i32 %10, i32 0)
store i32 %11, i32* %3
%12 = bitcast %struct.sockaddr_in* %4 to i8*
%13 = call i32 @memset(i8* %12, i32 0, i32 12)
%14 = load i32, i32* @AF_INET
%15 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %4, i32 0, i32 2
store i32 %14, i32* %15
%16 = call i32 @inet_addr(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0))
%17 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %4, i32 0, i32 1
%18 = getelementptr inbounds %struct.TYPE_2__, %struct.TYPE_2__* %17, i32 0, i32 0
store i32 %16, i32* %18
%19 = call i32 @htons(i32 25588)
%20 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %4, i32 0, i32 0
store i32 %19, i32* %20
%21 = load i32, i32* %3
%22 = bitcast %struct.sockaddr_in* %4 to %struct.sockaddr*
%23 = call i32 @bind(i32 %21, %struct.sockaddr* %22, i32 12)
%24 = load i32, i32* %3
%25 = call i32 @listen(i32 %24, i32 5)
store i32 12, i32* %6
%26 = load i32, i32* %3
%27 = bitcast %struct.sockaddr_in* %5 to %struct.sockaddr*
%28 = call i32 @accept(i32 %26, %struct.sockaddr* %27, i32* %6)
store i32 %28, i32* %7
%29 = load i8*, i8** %2
%30 = call i32 @strlen(i8* %29)
%31 = add nsw i32 %30, 1
%32 = sext i32 %31 to i64
store i64 %32, i64* %8
%33 = load i32, i32* %7
%34 = load i8*, i8** %2
%35 = load i64, i64* %8
%36 = call i32 @send(i32 %33, i8* %34, i64 %35, i32 0)
ret i8* null
}

LLVM IR (-O2):
%struct.sockaddr_in = type { i32, %struct.TYPE_2__, i32 }
%struct.TYPE_2__ = type { i32 }
%struct.sockaddr = type { i32 }
@AF_INET = global i32 0
@SOCK_STREAM = global i32 0
@.str = [10 x i8] c"127.0.0.1\00"
define noalias i8* @server_send_thread(i8* %0) {
%2 = alloca %struct.sockaddr_in
%3 = alloca %struct.sockaddr_in
%4 = alloca i32
%5 = load i32, i32* @AF_INET
%6 = load i32, i32* @SOCK_STREAM
%7 = tail call i32 @socket(i32 %5, i32 %6, i32 0)
%8 = bitcast %struct.sockaddr_in* %2 to i8*
%9 = call i32 @memset(i8* %8, i32 0, i32 12)
%10 = load i32, i32* @AF_INET
%11 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %2, i64 0, i32 2
store i32 %10, i32* %11
%12 = call i32 @inet_addr(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0))
%13 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %2, i64 0, i32 1, i32 0
store i32 %12, i32* %13
%14 = call i32 @htons(i32 25588)
%15 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %2, i64 0, i32 0
store i32 %14, i32* %15
%16 = bitcast %struct.sockaddr_in* %2 to %struct.sockaddr*
%17 = call i32 @bind(i32 %7, %struct.sockaddr* %16, i32 12)
%18 = call i32 @listen(i32 %7, i32 5)
%19 = bitcast %struct.sockaddr_in* %3 to i8*
%20 = bitcast i32* %4 to i8*
store i32 12, i32* %4
%21 = bitcast %struct.sockaddr_in* %3 to %struct.sockaddr*
%22 = call i32 @accept(i32 %7, %struct.sockaddr* %21, i32* %4)
%23 = call i32 @strlen(i8* %0)
%24 = add nsw i32 %23, 1
%25 = sext i32 %24 to i64
%26 = call i32 @send(i32 %22, i8* %0, i64 %25, i32 0)
ret i8* null
}