#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*/ SEEK_END;
int /*<<< orphan*/ SEEK_SET;
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char const *, char *);
int /*<<< orphan*/ fread(char *, long, int, int /*<<< orphan*/ *);
int /*<<< orphan*/ free(char *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
long ftell(int /*<<< orphan*/ *);
char *malloc(long);
scalar_t__ strncmp(char *, char *, int);
unsigned char *load_code(const char *filename, long *read_bytes) {
  FILE *fp;
  long filesize;
  char *code;
  fp = fopen(filename, "rb");
  if (!fp)
    return NULL;
  fseek(fp, 0, SEEK_END);
  filesize = ftell(fp);
  fseek(fp, 0, SEEK_SET);
  code = malloc(filesize);
  if (!code) {
    fclose(fp);
    return NULL;
  }
  fread(code, filesize, 1, fp);
  fclose(fp);
  if (strncmp(code, "\x05\xe2\x00\xcf\xee\x7f\xf1\x88", 8) != 0) {
    free(code);
    return NULL;
  }
  *read_bytes = filesize;
  return code;
}


x86 assembly (clang, -O0):
<load_code>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xe65(%rip),%rsi
call   10a0 <fopen@plt>
mov    %rax,-0x20(%rbp)
cmpq   $0x0,-0x20(%rbp)
jne    11bc <load_code+0x3c>
movq   $0x0,-0x8(%rbp)
jmp    1286 <load_code+0x106>
mov    -0x20(%rbp),%rdi
mov    0x2e21(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1090 <fseek@plt>
mov    -0x20(%rbp),%rdi
call   1070 <ftell@plt>
mov    %rax,-0x28(%rbp)
mov    -0x20(%rbp),%rdi
mov    0x2df0(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1090 <fseek@plt>
mov    -0x28(%rbp),%rdi
call   1080 <malloc@plt>
mov    %rax,-0x30(%rbp)
cmpq   $0x0,-0x30(%rbp)
jne    121f <load_code+0x9f>
mov    -0x20(%rbp),%rdi
call   1060 <fclose@plt>
movq   $0x0,-0x8(%rbp)
jmp    1286 <load_code+0x106>
mov    -0x30(%rbp),%rdi
mov    -0x28(%rbp),%rsi
mov    -0x20(%rbp),%rcx
mov    $0x1,%edx
call   1050 <fread@plt>
mov    -0x20(%rbp),%rdi
call   1060 <fclose@plt>
mov    -0x30(%rbp),%rdi
lea    0xdba(%rip),%rsi
mov    $0x8,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     1273 <load_code+0xf3>
mov    -0x30(%rbp),%rdi
call   1030 <free@plt>
movq   $0x0,-0x8(%rbp)
jmp    1286 <load_code+0x106>
mov    -0x28(%rbp),%rcx
mov    -0x18(%rbp),%rax
mov    %rcx,(%rax)
mov    -0x30(%rbp),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<load_code>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r14
lea    0xe6e(%rip),%rsi
call   10a0 <fopen@plt>
test   %rax,%rax
je     1220 <load_code+0xa0>
mov    %rax,%rbx
mov    0x2e3e(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1090 <fseek@plt>
mov    %rbx,%rdi
call   1070 <ftell@plt>
mov    %rax,%r12
mov    0x2e10(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1090 <fseek@plt>
mov    %r12,%rdi
call   1080 <malloc@plt>
test   %rax,%rax
je     1225 <load_code+0xa5>
mov    %rax,%r15
mov    %rax,%rdi
mov    %r12,%rsi
mov    $0x1,%edx
mov    %rbx,%rcx
call   1050 <fread@plt>
mov    %rbx,%rdi
call   1060 <fclose@plt>
lea    0xdfd(%rip),%rsi
mov    %r15,%rdi
mov    $0x8,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
je     1232 <load_code+0xb2>
mov    %r15,%rdi
call   1030 <free@plt>
xor    %r15d,%r15d
jmp    1235 <load_code+0xb5>
mov    %rbx,%rdi
call   1060 <fclose@plt>
xor    %r15d,%r15d
jmp    1235 <load_code+0xb5>
mov    %r12,(%r14)
mov    %r15,%rax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
@.str.1 = [9 x i8] c"\05\E2\00\CF\EE\7F\F1\88\00"
define i8* @load_code(i8* %0, i64* %1) {
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i64*
%6 = alloca i32*
%7 = alloca i64
%8 = alloca i8*
store i8* %0, i8** %4
store i64* %1, i64** %5
%9 = load i8*, i8** %4
%10 = call i32* @fopen(i8* %9, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
store i32* %10, i32** %6
%11 = load i32*, i32** %6
%12 = icmp ne i32* %11, null
br i1 %12, label %14, label %13
13: ; preds = %2
store i8* null, i8** %3
br label %47
14: ; preds = %2
%15 = load i32*, i32** %6
%16 = load i32, i32* @SEEK_END
%17 = call i32 @fseek(i32* %15, i32 0, i32 %16)
%18 = load i32*, i32** %6
%19 = call i64 @ftell(i32* %18)
store i64 %19, i64* %7
%20 = load i32*, i32** %6
%21 = load i32, i32* @SEEK_SET
%22 = call i32 @fseek(i32* %20, i32 0, i32 %21)
%23 = load i64, i64* %7
%24 = call i8* @malloc(i64 %23)
store i8* %24, i8** %8
%25 = load i8*, i8** %8
%26 = icmp ne i8* %25, null
br i1 %26, label %30, label %27
27: ; preds = %14
%28 = load i32*, i32** %6
%29 = call i32 @fclose(i32* %28)
store i8* null, i8** %3
br label %47
30: ; preds = %14
%31 = load i8*, i8** %8
%32 = load i64, i64* %7
%33 = load i32*, i32** %6
%34 = call i32 @fread(i8* %31, i64 %32, i32 1, i32* %33)
%35 = load i32*, i32** %6
%36 = call i32 @fclose(i32* %35)
%37 = load i8*, i8** %8
%38 = call i64 @strncmp(i8* %37, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32 8)
%39 = icmp ne i64 %38, 0
br i1 %39, label %40, label %43
40: ; preds = %30
%41 = load i8*, i8** %8
%42 = call i32 @free(i8* %41)
store i8* null, i8** %3
br label %47
43: ; preds = %30
%44 = load i64, i64* %7
%45 = load i64*, i64** %5
store i64 %44, i64* %45
%46 = load i8*, i8** %8
store i8* %46, i8** %3
br label %47
47: ; preds = %43, %40, %27, %13
%48 = load i8*, i8** %3
ret i8* %48
}

LLVM IR (-O2):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
@.str.1 = [9 x i8] c"\05\E2\00\CF\EE\7F\F1\88\00"
define i8* @load_code(i8* nocapture %0, i64* nocapture writeonly %1) {
%3 = tail call i32* @fopen(i8* %0, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%4 = icmp eq i32* %3, null
br i1 %4, label %23, label %5
5: ; preds = %2
%6 = load i32, i32* @SEEK_END
%7 = tail call i32 @fseek(i32* %3, i32 0, i32 %6)
%8 = tail call i64 @ftell(i32* %3)
%9 = load i32, i32* @SEEK_SET
%10 = tail call i32 @fseek(i32* %3, i32 0, i32 %9)
%11 = tail call i8* @malloc(i64 %8)
%12 = icmp eq i8* %11, null
br i1 %12, label %13, label %15
13: ; preds = %5
%14 = tail call i32 @fclose(i32* %3)
br label %23
15: ; preds = %5
%16 = tail call i32 @fread(i8* %11, i64 %8, i32 1, i32* %3)
%17 = tail call i32 @fclose(i32* %3)
%18 = tail call i64 @strncmp(i8* %11, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0), i32 8)
%19 = icmp eq i64 %18, 0
br i1 %19, label %22, label %20
20: ; preds = %15
%21 = tail call i32 @free(i8* %11)
br label %23
22: ; preds = %15
store i64 %8, i64* %1
br label %23
23: ; preds = %2, %22, %20, %13
%24 = phi i8* [ null, %20 ], [ %11, %22 ], [ null, %13 ], [ null, %2 ]
ret i8* %24
}