#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*/ fseek(int /*<<< orphan*/ *, long, int /*<<< orphan*/);
long ftell(int /*<<< orphan*/ *);
scalar_t__ malloc(long);
char *loadf(const char *f, long *len) {
  FILE *fi;
  char *b;
  long pos;
  fi = fopen(f, "rb");
  if (!fi) {
    return NULL;
  }
  fseek(fi, 0L, SEEK_END);
  pos = ftell(fi);
  fseek(fi, 0L, SEEK_SET);
  b = (char *)malloc(pos + 1);
  if (b) {
    fread(b, pos, 1, fi);
    b[pos] = '\0';
  }
  fclose(fi);
  if (len)
    *len = pos;
  return b;
}


x86 assembly (clang, -O0):
<loadf>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xe85(%rip),%rsi
call   1080 <fopen@plt>
mov    %rax,-0x20(%rbp)
cmpq   $0x0,-0x20(%rbp)
jne    119c <loadf+0x3c>
movq   $0x0,-0x8(%rbp)
jmp    123a <loadf+0xda>
mov    -0x20(%rbp),%rdi
mov    0x2e41(%rip),%rax
mov    (%rax),%edx
xor    %eax,%eax
mov    %eax,%esi
call   1070 <fseek@plt>
mov    -0x20(%rbp),%rdi
call   1050 <ftell@plt>
mov    %rax,-0x30(%rbp)
mov    -0x20(%rbp),%rdi
mov    0x2e0e(%rip),%rax
mov    (%rax),%edx
xor    %eax,%eax
mov    %eax,%esi
call   1070 <fseek@plt>
mov    -0x30(%rbp),%rdi
add    $0x1,%rdi
call   1060 <malloc@plt>
mov    %rax,-0x28(%rbp)
cmpq   $0x0,-0x28(%rbp)
je     1213 <loadf+0xb3>
mov    -0x28(%rbp),%rdi
mov    -0x30(%rbp),%rsi
mov    -0x20(%rbp),%rcx
mov    $0x1,%edx
call   1030 <fread@plt>
mov    -0x28(%rbp),%rax
mov    -0x30(%rbp),%rcx
movb   $0x0,(%rax,%rcx,1)
mov    -0x20(%rbp),%rdi
call   1040 <fclose@plt>
cmpq   $0x0,-0x18(%rbp)
je     1232 <loadf+0xd2>
mov    -0x30(%rbp),%rcx
mov    -0x18(%rbp),%rax
mov    %rcx,(%rax)
mov    -0x28(%rbp),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<loadf>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r14
lea    0xe8e(%rip),%rsi
call   1080 <fopen@plt>
test   %rax,%rax
je     11ee <loadf+0x8e>
mov    %rax,%rbx
mov    0x2e62(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1070 <fseek@plt>
mov    %rbx,%rdi
call   1050 <ftell@plt>
mov    %rax,%r15
mov    0x2e34(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1070 <fseek@plt>
mov    %r15,%rdi
add    $0x1,%rdi
call   1060 <malloc@plt>
mov    %rax,%r12
test   %rax,%rax
je     11dc <loadf+0x7c>
mov    %r12,%rdi
mov    %r15,%rsi
mov    $0x1,%edx
mov    %rbx,%rcx
call   1030 <fread@plt>
movb   $0x0,(%r12,%r15,1)
mov    %rbx,%rdi
call   1040 <fclose@plt>
test   %r14,%r14
je     11f1 <loadf+0x91>
mov    %r15,(%r14)
jmp    11f1 <loadf+0x91>
xor    %r12d,%r12d
mov    %r12,%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
define i8* @loadf(i8* %0, i64* %1) {
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i64*
%6 = alloca i32*
%7 = alloca i8*
%8 = alloca i64
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, i64 0, i32 %16)
%18 = load i32*, i32** %6
%19 = call i64 @ftell(i32* %18)
store i64 %19, i64* %8
%20 = load i32*, i32** %6
%21 = load i32, i32* @SEEK_SET
%22 = call i32 @fseek(i32* %20, i64 0, i32 %21)
%23 = load i64, i64* %8
%24 = add nsw i64 %23, 1
%25 = call i64 @malloc(i64 %24)
%26 = inttoptr i64 %25 to i8*
store i8* %26, i8** %7
%27 = load i8*, i8** %7
%28 = icmp ne i8* %27, null
br i1 %28, label %29, label %37
29: ; preds = %14
%30 = load i8*, i8** %7
%31 = load i64, i64* %8
%32 = load i32*, i32** %6
%33 = call i32 @fread(i8* %30, i64 %31, i32 1, i32* %32)
%34 = load i8*, i8** %7
%35 = load i64, i64* %8
%36 = getelementptr inbounds i8, i8* %34, i64 %35
store i8 0, i8* %36
br label %37
37: ; preds = %29, %14
%38 = load i32*, i32** %6
%39 = call i32 @fclose(i32* %38)
%40 = load i64*, i64** %5
%41 = icmp ne i64* %40, null
br i1 %41, label %42, label %45
42: ; preds = %37
%43 = load i64, i64* %8
%44 = load i64*, i64** %5
store i64 %43, i64* %44
br label %45
45: ; preds = %42, %37
%46 = load i8*, i8** %7
store i8* %46, i8** %3
br label %47
47: ; preds = %45, %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
define i8* @loadf(i8* nocapture %0, i64* 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 %22, label %5
5: ; preds = %2
%6 = load i32, i32* @SEEK_END
%7 = tail call i32 @fseek(i32* %3, i64 0, i32 %6)
%8 = tail call i64 @ftell(i32* %3)
%9 = load i32, i32* @SEEK_SET
%10 = tail call i32 @fseek(i32* %3, i64 0, i32 %9)
%11 = add nsw i64 %8, 1
%12 = tail call i64 @malloc(i64 %11)
%13 = inttoptr i64 %12 to i8*
%14 = icmp eq i64 %12, 0
br i1 %14, label %18, label %15
15: ; preds = %5
%16 = tail call i32 @fread(i8* %13, i64 %8, i32 1, i32* %3)
%17 = getelementptr inbounds i8, i8* %13, i64 %8
store i8 0, i8* %17
br label %18
18: ; preds = %15, %5
%19 = tail call i32 @fclose(i32* %3)
%20 = icmp eq i64* %1, null
br i1 %20, label %22, label %21
21: ; preds = %18
store i64 %8, i64* %1
br label %22
22: ; preds = %18, %21, %2
%23 = phi i8* [ null, %2 ], [ %13, %21 ], [ %13, %18 ]
ret i8* %23
}