#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*/ FILE;

/* Variables and functions */
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fdopen(int, char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/ *, char *);
do_404(char *item, int fd) {
  FILE *fp = fdopen(fd, "w");
  fprintf(fp, "HTTP/1.0 404 Not Found\r\n");
  fprintf(fp, "Content-type:text/plain\r\n");
  fprintf(fp, "\r\n");
  fprintf(fp, "That page you request is not found!\r\n");
  fclose(fp);
}


x86 assembly (clang, -O0):
<do_404>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    %esi,-0x14(%rbp)
mov    -0x14(%rbp),%edi
lea    0xeb7(%rip),%rsi
call   1050 <fdopen@plt>
mov    %rax,-0x20(%rbp)
mov    -0x20(%rbp),%rdi
lea    0xea5(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x20(%rbp),%rdi
lea    0xeae(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x20(%rbp),%rdi
lea    0xedb(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x20(%rbp),%rdi
lea    0xea8(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x20(%rbp),%rdi
call   1030 <fclose@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<do_404>:
push   %rbx
mov    %esi,%edi
lea    0xec6(%rip),%rsi
call   1040 <fdopen@plt>
mov    %rax,%rbx
lea    0xeb9(%rip),%rdi
mov    $0x18,%esi
mov    $0x1,%edx
mov    %rax,%rcx
call   1050 <fwrite@plt>
lea    0xeb9(%rip),%rdi
mov    $0x19,%esi
mov    $0x1,%edx
mov    %rbx,%rcx
call   1050 <fwrite@plt>
lea    0xedd(%rip),%rdi
mov    $0x2,%esi
mov    $0x1,%edx
mov    %rbx,%rcx
call   1050 <fwrite@plt>
lea    0xea1(%rip),%rdi
mov    $0x25,%esi
mov    $0x1,%edx
mov    %rbx,%rcx
call   1050 <fwrite@plt>
mov    %rbx,%rdi
pop    %rbx
jmp    1030 <fclose@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"w\00"
@.str.1 = [25 x i8] c"HTTP/1.0 404 Not Found\0D\0A\00"
@.str.2 = [26 x i8] c"Content-type:text/plain\0D\0A\00"
@.str.3 = [3 x i8] c"\0D\0A\00"
@.str.4 = [38 x i8] c"That page you request is not found!\0D\0A\00"
define i32 @do_404(i8* %0, i32 %1) {
%3 = alloca i32
%4 = alloca i8*
%5 = alloca i32
%6 = alloca i32*
store i8* %0, i8** %4
store i32 %1, i32* %5
%7 = load i32, i32* %5
%8 = call i32* @fdopen(i32 %7, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32* %8, i32** %6
%9 = load i32*, i32** %6
%10 = call i32 @fprintf(i32* %9, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0))
%11 = load i32*, i32** %6
%12 = call i32 @fprintf(i32* %11, i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0))
%13 = load i32*, i32** %6
%14 = call i32 @fprintf(i32* %13, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0))
%15 = load i32*, i32** %6
%16 = call i32 @fprintf(i32* %15, i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.4, i64 0, i64 0))
%17 = load i32*, i32** %6
%18 = call i32 @fclose(i32* %17)
%19 = load i32, i32* %3
ret i32 %19
}

LLVM IR (-O2):
@.str = [2 x i8] c"w\00"
@.str.1 = [25 x i8] c"HTTP/1.0 404 Not Found\0D\0A\00"
@.str.2 = [26 x i8] c"Content-type:text/plain\0D\0A\00"
@.str.3 = [3 x i8] c"\0D\0A\00"
@.str.4 = [38 x i8] c"That page you request is not found!\0D\0A\00"
define i32 @do_404(i8* nocapture readnone %0, i32 %1) {
%3 = tail call i32* @fdopen(i32 %1, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%4 = tail call i64 @fwrite(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), i64 24, i64 1, i32* %3)
%5 = tail call i64 @fwrite(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0), i64 25, i64 1, i32* %3)
%6 = tail call i64 @fwrite(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i64 2, i64 1, i32* %3)
%7 = tail call i64 @fwrite(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.4, i64 0, i64 0), i64 37, i64 1, i32* %3)
%8 = tail call i32 @fclose(i32* %3)
ret i32 undef
}