#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(char *, int, int, int /*<<< orphan*/ *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
int ftell(int /*<<< orphan*/ *);
scalar_t__ malloc(int);
int /*<<< orphan*/ rewind(int /*<<< orphan*/ *);
char *includefile(char *path, int *filesize) {
  FILE *f;
  char *buf;
  if ((f = fopen(path, "r")) == NULL) {
    return (NULL);
  }
  fseek(f, 0, SEEK_END);
  *filesize = ftell(f);
  rewind(f);
  buf = (char *)malloc(*filesize);
  if (!buf) {
    fclose(f);
    return (NULL);
  }
  fread(buf, 1, *filesize, f);
  fclose(f);
  return (buf);
}


x86 assembly (clang, -O0):
<includefile>:
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)
cmp    $0x0,%rax
jne    11ab <includefile+0x3b>
movq   $0x0,-0x8(%rbp)
jmp    1232 <includefile+0xc2>
mov    -0x20(%rbp),%rdi
mov    0x2e32(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1080 <fseek@plt>
mov    -0x20(%rbp),%rdi
call   1060 <ftell@plt>
mov    %eax,%ecx
mov    -0x18(%rbp),%rax
mov    %ecx,(%rax)
mov    -0x20(%rbp),%rdi
call   1050 <rewind@plt>
mov    -0x18(%rbp),%rax
mov    (%rax),%edi
call   1070 <malloc@plt>
mov    %rax,-0x28(%rbp)
cmpq   $0x0,-0x28(%rbp)
jne    1209 <includefile+0x99>
mov    -0x20(%rbp),%rdi
call   1040 <fclose@plt>
movq   $0x0,-0x8(%rbp)
jmp    1232 <includefile+0xc2>
mov    -0x28(%rbp),%rdi
mov    -0x18(%rbp),%rax
mov    (%rax),%edx
mov    -0x20(%rbp),%rcx
mov    $0x1,%esi
call   1030 <fread@plt>
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):
<includefile>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r14
lea    0xe7e(%rip),%rsi
call   1090 <fopen@plt>
test   %rax,%rax
je     11e8 <includefile+0x78>
mov    %rax,%rbx
mov    0x2e52(%rip),%rax
mov    (%rax),%edx
xor    %r15d,%r15d
mov    %rbx,%rdi
xor    %esi,%esi
call   1080 <fseek@plt>
mov    %rbx,%rdi
call   1060 <ftell@plt>
mov    %eax,(%r14)
mov    %rbx,%rdi
call   1050 <rewind@plt>
mov    (%r14),%edi
call   1070 <malloc@plt>
test   %rax,%rax
je     11de <includefile+0x6e>
mov    %rax,%r12
mov    (%r14),%edx
mov    %rax,%rdi
mov    $0x1,%esi
mov    %rbx,%rcx
call   1030 <fread@plt>
mov    %r12,%r15
mov    %rbx,%rdi
call   1040 <fclose@plt>
jmp    11eb <includefile+0x7b>
xor    %r15d,%r15d
mov    %r15,%rax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [2 x i8] c"r\00"
@SEEK_END = global i32 0
define i8* @includefile(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 ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32* %9, i32** %6
%10 = icmp eq i32* %9, null
br i1 %10, label %11, label %12
11: ; preds = %2
store i8* null, i8** %3
br label %39
12: ; preds = %2
%13 = load i32*, i32** %6
%14 = load i32, i32* @SEEK_END
%15 = call i32 @fseek(i32* %13, i32 0, i32 %14)
%16 = load i32*, i32** %6
%17 = call i32 @ftell(i32* %16)
%18 = load i32*, i32** %5
store i32 %17, i32* %18
%19 = load i32*, i32** %6
%20 = call i32 @rewind(i32* %19)
%21 = load i32*, i32** %5
%22 = load i32, i32* %21
%23 = call i64 @malloc(i32 %22)
%24 = inttoptr i64 %23 to i8*
store i8* %24, i8** %7
%25 = load i8*, i8** %7
%26 = icmp ne i8* %25, null
br i1 %26, label %30, label %27
27: ; preds = %12
%28 = load i32*, i32** %6
%29 = call i32 @fclose(i32* %28)
store i8* null, i8** %3
br label %39
30: ; preds = %12
%31 = load i8*, i8** %7
%32 = load i32*, i32** %5
%33 = load i32, i32* %32
%34 = load i32*, i32** %6
%35 = call i32 @fread(i8* %31, i32 1, i32 %33, i32* %34)
%36 = load i32*, i32** %6
%37 = call i32 @fclose(i32* %36)
%38 = load i8*, i8** %7
store i8* %38, i8** %3
br label %39
39: ; preds = %30, %27, %11
%40 = load i8*, i8** %3
ret i8* %40
}

LLVM IR (-O2):
@.str = [2 x i8] c"r\00"
@SEEK_END = global i32 0
define i8* @includefile(i8* nocapture %0, i32* nocapture %1) {
%3 = tail call i32* @fopen(i8* %0, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%4 = icmp eq i32* %3, null
br i1 %4, label %20, 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 = tail call i32 @rewind(i32* %3)
%10 = load i32, i32* %1
%11 = tail call i64 @malloc(i32 %10)
%12 = inttoptr i64 %11 to i8*
%13 = icmp eq i64 %11, 0
br i1 %13, label %17, label %14
14: ; preds = %5
%15 = load i32, i32* %1
%16 = tail call i32 @fread(i8* %12, i32 1, i32 %15, i32* %3)
br label %17
17: ; preds = %5, %14
%18 = phi i8* [ %12, %14 ], [ null, %5 ]
%19 = tail call i32 @fclose(i32* %3)
br label %20
20: ; preds = %17, %2
%21 = phi i8* [ null, %2 ], [ %18, %17 ]
ret i8* %21
}