#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*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
int /*<<< orphan*/ fread(unsigned char *, int, long, int /*<<< orphan*/ *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
long ftell(int /*<<< orphan*/ *);
scalar_t__ malloc(int);
int /*<<< orphan*/ rewind(int /*<<< orphan*/ *);
unsigned char *loadFile(char *name, int *bufferSize) {
  FILE *f;
  long size;
  unsigned char *buffer;
  f = fopen(name, "rb");
  if (!f)
    return NULL;
  fseek(f, 0, SEEK_END);
  size = ftell(f);
  rewind(f);
  if (bufferSize)
    *bufferSize = size;
  buffer = (unsigned char *)malloc(sizeof(char) * size);
  fread(buffer, 1, size, f);
  fclose(f);
  return buffer;
}


x86 assembly (clang, -O0):
<loadFile>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xe75(%rip),%rsi
call   1090 <fopen@plt>
mov    %rax,-0x20(%rbp)
cmpq   $0x0,-0x20(%rbp)
jne    11ac <loadFile+0x3c>
movq   $0x0,-0x8(%rbp)
jmp    1227 <loadFile+0xb7>
mov    -0x20(%rbp),%rdi
mov    0x2e31(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1080 <fseek@plt>
mov    -0x20(%rbp),%rdi
call   1060 <ftell@plt>
mov    %rax,-0x28(%rbp)
mov    -0x20(%rbp),%rdi
call   1050 <rewind@plt>
cmpq   $0x0,-0x18(%rbp)
je     11ed <loadFile+0x7d>
mov    -0x28(%rbp),%rax
mov    %eax,%ecx
mov    -0x18(%rbp),%rax
mov    %ecx,(%rax)
mov    -0x28(%rbp),%rax
shl    $0x0,%rax
mov    %eax,%edi
call   1070 <malloc@plt>
mov    %rax,-0x30(%rbp)
mov    -0x30(%rbp),%rdi
mov    -0x28(%rbp),%rdx
mov    -0x20(%rbp),%rcx
mov    $0x1,%esi
call   1030 <fread@plt>
mov    -0x20(%rbp),%rdi
call   1040 <fclose@plt>
mov    -0x30(%rbp),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<loadFile>:
push   %r15
push   %r14
push   %rbx
mov    %rsi,%r14
lea    0xe81(%rip),%rsi
call   1090 <fopen@plt>
test   %rax,%rax
je     11e2 <loadFile+0x72>
mov    %rax,%rbx
mov    0x2e55(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1080 <fseek@plt>
mov    %rbx,%rdi
call   1060 <ftell@plt>
mov    %rax,%r15
mov    %rbx,%rdi
call   1050 <rewind@plt>
test   %r14,%r14
je     11ba <loadFile+0x4a>
mov    %r15d,(%r14)
mov    %r15d,%edi
call   1070 <malloc@plt>
mov    %rax,%r14
mov    %rax,%rdi
mov    $0x1,%esi
mov    %r15,%rdx
mov    %rbx,%rcx
call   1030 <fread@plt>
mov    %rbx,%rdi
call   1040 <fclose@plt>
jmp    11e5 <loadFile+0x75>
xor    %r14d,%r14d
mov    %r14,%rax
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
define i8* @loadFile(i8* %0, i32* %1) {
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i32*
%6 = alloca i32*
%7 = alloca i64
%8 = alloca i8*
store i8* %0, i8** %4
store i32* %1, i32** %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 %41
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 = call i32 @rewind(i32* %20)
%22 = load i32*, i32** %5
%23 = icmp ne i32* %22, null
br i1 %23, label %24, label %28
24: ; preds = %14
%25 = load i64, i64* %7
%26 = trunc i64 %25 to i32
%27 = load i32*, i32** %5
store i32 %26, i32* %27
br label %28
28: ; preds = %24, %14
%29 = load i64, i64* %7
%30 = mul i64 1, %29
%31 = trunc i64 %30 to i32
%32 = call i64 @malloc(i32 %31)
%33 = inttoptr i64 %32 to i8*
store i8* %33, i8** %8
%34 = load i8*, i8** %8
%35 = load i64, i64* %7
%36 = load i32*, i32** %6
%37 = call i32 @fread(i8* %34, i32 1, i64 %35, i32* %36)
%38 = load i32*, i32** %6
%39 = call i32 @fclose(i32* %38)
%40 = load i8*, i8** %8
store i8* %40, i8** %3
br label %41
41: ; preds = %28, %13
%42 = load i8*, i8** %3
ret i8* %42
}

LLVM IR (-O2):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
define i8* @loadFile(i8* nocapture %0, i32* 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 %18, 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 = tail call i32 @rewind(i32* %3)
%10 = icmp eq i32* %1, null
%11 = trunc i64 %8 to i32
br i1 %10, label %13, label %12
12: ; preds = %5
store i32 %11, i32* %1
br label %13
13: ; preds = %5, %12
%14 = tail call i64 @malloc(i32 %11)
%15 = inttoptr i64 %14 to i8*
%16 = tail call i32 @fread(i8* %15, i32 1, i64 %8, i32* %3)
%17 = tail call i32 @fclose(i32* %3)
br label %18
18: ; preds = %2, %13
%19 = phi i8* [ %15, %13 ], [ null, %2 ]
ret i8* %19
}