#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 */
char *getenv(char *);
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  char *query_string = getenv("QUERY_STRING");
  printf("Content-type: text/html\n");
  printf("Status: 200 OK\n");
  printf("\n");
  printf("<html>\n");
  printf("  <head>\n");
  printf("    <title>QUERY_STRING</title>\n");
  printf("  </head>\n");
  printf("  <body>\n");
  printf("    %s\n", query_string);
  printf("  </body>\n");
  printf("</html>\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
call   1030 <getenv@plt>
mov    %rax,-0x10(%rbp)
lea    0xec7(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xed2(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xf10(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec6(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xecf(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xecc(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rsi
lea    0xec4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xebe(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xebb(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xeb8(%rip),%rdi
call   1030 <getenv@plt>
mov    %rax,%rbx
lea    0xebe(%rip),%rdi
call   1050 <puts@plt>
lea    0xeca(%rip),%rdi
call   1050 <puts@plt>
mov    $0xa,%edi
call   1040 <putchar@plt>
lea    0xec3(%rip),%rdi
call   1050 <puts@plt>
lea    0xebe(%rip),%rdi
call   1050 <puts@plt>
lea    0xebb(%rip),%rdi
call   1050 <puts@plt>
lea    0xecf(%rip),%rdi
call   1050 <puts@plt>
lea    0xecd(%rip),%rdi
call   1050 <puts@plt>
lea    0xe58(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1060 <printf@plt>
lea    0xeb9(%rip),%rdi
call   1050 <puts@plt>
lea    0xeb7(%rip),%rdi
call   1050 <puts@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [13 x i8] c"QUERY_STRING\00"
@.str.1 = [25 x i8] c"Content-type: text/html\0A\00"
@.str.2 = [16 x i8] c"Status: 200 OK\0A\00"
@.str.3 = [2 x i8] c"\0A\00"
@.str.4 = [8 x i8] c"<html>\0A\00"
@.str.5 = [10 x i8] c" <head>\0A\00"
@.str.6 = [33 x i8] c" <title>QUERY_STRING</title>\0A\00"
@.str.7 = [11 x i8] c" </head>\0A\00"
@.str.8 = [10 x i8] c" <body>\0A\00"
@.str.9 = [8 x i8] c" %s\0A\00"
@.str.10 = [11 x i8] c" </body>\0A\00"
@.str.11 = [9 x i8] c"</html>\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i8*
store i32 0, i32* %1
%3 = call i8* @getenv(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0))
store i8* %3, i8** %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.5, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.6, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.7, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.8, i64 0, i64 0))
%12 = load i8*, i8** %2
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0), i8* %12)
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.10, i64 0, i64 0))
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.11, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [13 x i8] c"QUERY_STRING\00"
@.str.9 = [8 x i8] c" %s\0A\00"
@str = [24 x i8] c"Content-type: text/html\00"
@str.12 = [15 x i8] c"Status: 200 OK\00"
@str.13 = [7 x i8] c"<html>\00"
@str.14 = [9 x i8] c" <head>\00"
@str.15 = [32 x i8] c" <title>QUERY_STRING</title>\00"
@str.16 = [10 x i8] c" </head>\00"
@str.17 = [9 x i8] c" <body>\00"
@str.18 = [10 x i8] c" </body>\00"
@str.19 = [8 x i8] c"</html>\00"
define i32 @main() {
%1 = tail call i8* @getenv(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @str.12, i64 0, i64 0))
%4 = tail call i32 @putchar(i32 10)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str.13, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.14, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.15, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @str.16, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.17, i64 0, i64 0))
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0), i8* %1)
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @str.18, i64 0, i64 0))
%12 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @str.19, i64 0, i64 0))
ret i32 0
}