#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 *);
size_t fread(char *, int, size_t, int /*<<< orphan*/ *);
int /*<<< orphan*/ free(char *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
size_t ftell(int /*<<< orphan*/ *);
scalar_t__ malloc(size_t);
size_t flott_load_file_to_memory(const char *filename, char **result) {
  size_t size = 0;
  FILE *fp = fopen(filename, "rb");
  if (fp == NULL) {
    *result = NULL;
    return -1;
  }
  fseek(fp, 0, SEEK_END);
  size = ftell(fp);
  fseek(fp, 0, SEEK_SET);
  *result = (char *)malloc(size + 1);
  if (result != NULL) {
    if (size != fread(*result, sizeof(char), size, fp)) {
      free(*result);
      *result = NULL;
      return -2;
    }
  } else {
    fclose(fp);
    return -3;
  }
  fclose(fp);
  return size;
}


x86 assembly (clang, -O0):
<flott_load_file_to_memory>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
movq   $0x0,-0x20(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xe6d(%rip),%rsi
call   1090 <fopen@plt>
mov    %rax,-0x28(%rbp)
cmpq   $0x0,-0x28(%rbp)
jne    11bf <flott_load_file_to_memory+0x4f>
mov    -0x18(%rbp),%rax
movq   $0x0,(%rax)
movq   $0xffffffffffffffff,-0x8(%rbp)
ff
jmp    1297 <flott_load_file_to_memory+0x127>
mov    -0x28(%rbp),%rdi
mov    0x2e1e(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1080 <fseek@plt>
mov    -0x28(%rbp),%rdi
call   1060 <ftell@plt>
mov    %rax,-0x20(%rbp)
mov    -0x28(%rbp),%rdi
mov    0x2ded(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1080 <fseek@plt>
mov    -0x20(%rbp),%rdi
add    $0x1,%rdi
call   1070 <malloc@plt>
mov    %rax,%rcx
mov    -0x18(%rbp),%rax
mov    %rcx,(%rax)
cmpq   $0x0,-0x18(%rbp)
je     1270 <flott_load_file_to_memory+0x100>
mov    -0x20(%rbp),%rax
mov    %rax,-0x30(%rbp)
mov    -0x18(%rbp),%rax
mov    (%rax),%rdi
mov    -0x20(%rbp),%rdx
mov    -0x28(%rbp),%rcx
mov    $0x1,%esi
call   1040 <fread@plt>
mov    %rax,%rcx
mov    -0x30(%rbp),%rax
cmp    %rcx,%rax
je     126b <flott_load_file_to_memory+0xfb>
mov    -0x18(%rbp),%rax
mov    (%rax),%rdi
call   1030 <free@plt>
mov    -0x18(%rbp),%rax
movq   $0x0,(%rax)
movq   $0xfffffffffffffffe,-0x8(%rbp)
ff
jmp    1297 <flott_load_file_to_memory+0x127>
jmp    1286 <flott_load_file_to_memory+0x116>
mov    -0x28(%rbp),%rdi
call   1050 <fclose@plt>
movq   $0xfffffffffffffffd,-0x8(%rbp)
ff
jmp    1297 <flott_load_file_to_memory+0x127>
mov    -0x28(%rbp),%rdi
call   1050 <fclose@plt>
mov    -0x20(%rbp),%rax
mov    %rax,-0x8(%rbp)
mov    -0x8(%rbp),%rax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<flott_load_file_to_memory>:
push   %r15
push   %r14
push   %rbx
mov    %rsi,%r14
lea    0xe81(%rip),%rsi
call   1090 <fopen@plt>
test   %rax,%rax
je     11eb <flott_load_file_to_memory+0x7b>
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    0x2e27(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1080 <fseek@plt>
lea    0x1(%r15),%rdi
call   1070 <malloc@plt>
mov    %rax,(%r14)
mov    %rax,%rdi
mov    $0x1,%esi
mov    %r15,%rdx
mov    %rbx,%rcx
call   1040 <fread@plt>
cmp    %rax,%r15
jne    11fb <flott_load_file_to_memory+0x8b>
mov    %rbx,%rdi
call   1050 <fclose@plt>
jmp    1211 <flott_load_file_to_memory+0xa1>
movq   $0x0,(%r14)
mov    $0xffffffffffffffff,%r15
jmp    1211 <flott_load_file_to_memory+0xa1>
mov    (%r14),%rdi
call   1030 <free@plt>
movq   $0x0,(%r14)
mov    $0xfffffffffffffffe,%r15
mov    %r15,%rax
pop    %rbx
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 i64 @flott_load_file_to_memory(i8* %0, i8** %1) {
%3 = alloca i64
%4 = alloca i8*
%5 = alloca i8**
%6 = alloca i64
%7 = alloca i32*
store i8* %0, i8** %4
store i8** %1, i8*** %5
store i64 0, i64* %6
%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** %7
%10 = load i32*, i32** %7
%11 = icmp eq i32* %10, null
br i1 %11, label %12, label %14
12: ; preds = %2
%13 = load i8**, i8*** %5
store i8* null, i8** %13
store i64 -1, i64* %3
br label %51
14: ; preds = %2
%15 = load i32*, i32** %7
%16 = load i32, i32* @SEEK_END
%17 = call i32 @fseek(i32* %15, i32 0, i32 %16)
%18 = load i32*, i32** %7
%19 = call i64 @ftell(i32* %18)
store i64 %19, i64* %6
%20 = load i32*, i32** %7
%21 = load i32, i32* @SEEK_SET
%22 = call i32 @fseek(i32* %20, i32 0, i32 %21)
%23 = load i64, i64* %6
%24 = add i64 %23, 1
%25 = call i64 @malloc(i64 %24)
%26 = inttoptr i64 %25 to i8*
%27 = load i8**, i8*** %5
store i8* %26, i8** %27
%28 = load i8**, i8*** %5
%29 = icmp ne i8** %28, null
br i1 %29, label %30, label %44
30: ; preds = %14
%31 = load i64, i64* %6
%32 = load i8**, i8*** %5
%33 = load i8*, i8** %32
%34 = load i64, i64* %6
%35 = load i32*, i32** %7
%36 = call i64 @fread(i8* %33, i32 1, i64 %34, i32* %35)
%37 = icmp ne i64 %31, %36
br i1 %37, label %38, label %43
38: ; preds = %30
%39 = load i8**, i8*** %5
%40 = load i8*, i8** %39
%41 = call i32 @free(i8* %40)
%42 = load i8**, i8*** %5
store i8* null, i8** %42
store i64 -2, i64* %3
br label %51
43: ; preds = %30
br label %47
44: ; preds = %14
%45 = load i32*, i32** %7
%46 = call i32 @fclose(i32* %45)
store i64 -3, i64* %3
br label %51
47: ; preds = %43
%48 = load i32*, i32** %7
%49 = call i32 @fclose(i32* %48)
%50 = load i64, i64* %6
store i64 %50, i64* %3
br label %51
51: ; preds = %47, %44, %38, %12
%52 = load i64, i64* %3
ret i64 %52
}

LLVM IR (-O2):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define i64 @flott_load_file_to_memory(i8* nocapture %0, i8** 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 %5, label %6
5: ; preds = %2
store i8* null, i8** %1
br label %22
6: ; preds = %2
%7 = load i32, i32* @SEEK_END
%8 = tail call i32 @fseek(i32* %3, i32 0, i32 %7)
%9 = tail call i64 @ftell(i32* %3)
%10 = load i32, i32* @SEEK_SET
%11 = tail call i32 @fseek(i32* %3, i32 0, i32 %10)
%12 = add i64 %9, 1
%13 = tail call i64 @malloc(i64 %12)
%14 = inttoptr i64 %13 to i8*
store i8* %14, i8** %1
%15 = tail call i64 @fread(i8* %14, i32 1, i64 %9, i32* %3)
%16 = icmp eq i64 %9, %15
br i1 %16, label %20, label %17
17: ; preds = %6
%18 = load i8*, i8** %1
%19 = tail call i32 @free(i8* %18)
store i8* null, i8** %1
br label %22
20: ; preds = %6
%21 = tail call i32 @fclose(i32* %3)
br label %22
22: ; preds = %20, %17, %5
%23 = phi i64 [ -1, %5 ], [ -2, %17 ], [ %9, %20 ]
ret i64 %23
}