#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 *);
unsigned int fread(char *, int, unsigned int, int /*<<< orphan*/ *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
unsigned int ftell(int /*<<< orphan*/ *);
char *malloc(unsigned int);
char *readBinFile(const char *filename, unsigned int *size) {
  FILE *fl = fopen(filename, "rb");
  if (fl == NULL)
    return NULL;
  fseek(fl, 0, SEEK_END);
  *size = ftell(fl);
  fseek(fl, 0, SEEK_SET);
  char *text = malloc(*size);
  *size = fread(text, 1, *size, fl);
  fclose(fl);
  return text;
}


x86 assembly (clang, -O0):
<readBinFile>:
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 <readBinFile+0x3c>
movq   $0x0,-0x8(%rbp)
jmp    1215 <readBinFile+0xb5>
mov    -0x20(%rbp),%rdi
mov    0x2e41(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1070 <fseek@plt>
mov    -0x20(%rbp),%rdi
call   1050 <ftell@plt>
mov    %eax,%ecx
mov    -0x18(%rbp),%rax
mov    %ecx,(%rax)
mov    -0x20(%rbp),%rdi
mov    0x2e0c(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1070 <fseek@plt>
mov    -0x18(%rbp),%rax
mov    (%rax),%edi
call   1060 <malloc@plt>
mov    %rax,-0x28(%rbp)
mov    -0x28(%rbp),%rdi
mov    -0x18(%rbp),%rax
mov    (%rax),%edx
mov    -0x20(%rbp),%rcx
mov    $0x1,%esi
call   1030 <fread@plt>
mov    %eax,%ecx
mov    -0x18(%rbp),%rax
mov    %ecx,(%rax)
mov    -0x20(%rbp),%rdi
call   1040 <fclose@plt>
mov    -0x28(%rbp),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<readBinFile>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %rsi,%r14
lea    0xe8f(%rip),%rsi
call   1080 <fopen@plt>
test   %rax,%rax
je     11db <readBinFile+0x7b>
mov    %rax,%rbx
mov    0x2e63(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1070 <fseek@plt>
mov    %rbx,%rdi
call   1050 <ftell@plt>
mov    %eax,(%r14)
mov    0x2e35(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1070 <fseek@plt>
mov    (%r14),%ebp
mov    %ebp,%edi
call   1060 <malloc@plt>
mov    %rax,%r15
mov    %rax,%rdi
mov    $0x1,%esi
mov    %ebp,%edx
mov    %rbx,%rcx
call   1030 <fread@plt>
mov    %eax,(%r14)
mov    %rbx,%rdi
call   1040 <fclose@plt>
jmp    11de <readBinFile+0x7e>
xor    %r15d,%r15d
mov    %r15,%rax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define i8* @readBinFile(i8* %0, i32* %1) {
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i32*
%6 = alloca i32*
%7 = alloca i8*
store i8* %0, i8** %4
store i32* %1, i32** %5
%8 = load i8*, i8** %4
%9 = call i32* @fopen(i8* %8, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
store i32* %9, i32** %6
%10 = load i32*, i32** %6
%11 = icmp eq i32* %10, null
br i1 %11, label %12, label %13
12: ; preds = %2
store i8* null, i8** %3
br label %35
13: ; preds = %2
%14 = load i32*, i32** %6
%15 = load i32, i32* @SEEK_END
%16 = call i32 @fseek(i32* %14, i32 0, i32 %15)
%17 = load i32*, i32** %6
%18 = call i32 @ftell(i32* %17)
%19 = load i32*, i32** %5
store i32 %18, i32* %19
%20 = load i32*, i32** %6
%21 = load i32, i32* @SEEK_SET
%22 = call i32 @fseek(i32* %20, i32 0, i32 %21)
%23 = load i32*, i32** %5
%24 = load i32, i32* %23
%25 = call i8* @malloc(i32 %24)
store i8* %25, i8** %7
%26 = load i8*, i8** %7
%27 = load i32*, i32** %5
%28 = load i32, i32* %27
%29 = load i32*, i32** %6
%30 = call i32 @fread(i8* %26, i32 1, i32 %28, i32* %29)
%31 = load i32*, i32** %5
store i32 %30, i32* %31
%32 = load i32*, i32** %6
%33 = call i32 @fclose(i32* %32)
%34 = load i8*, i8** %7
store i8* %34, i8** %3
br label %35
35: ; preds = %13, %12
%36 = load i8*, i8** %3
ret i8* %36
}

LLVM IR (-O2):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define noalias i8* @readBinFile(i8* nocapture %0, i32* nocapture %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 %15, 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 i32 @ftell(i32* %3)
store i32 %8, i32* %1
%9 = load i32, i32* @SEEK_SET
%10 = tail call i32 @fseek(i32* %3, i32 0, i32 %9)
%11 = load i32, i32* %1
%12 = tail call i8* @malloc(i32 %11)
%13 = tail call i32 @fread(i8* %12, i32 1, i32 %11, i32* %3)
store i32 %13, i32* %1
%14 = tail call i32 @fclose(i32* %3)
br label %15
15: ; preds = %2, %5
%16 = phi i8* [ %12, %5 ], [ null, %2 ]
ret i8* %16
}