#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*/ fread(char *, int, size_t, int /*<<< orphan*/ *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
size_t ftell(int /*<<< orphan*/ *);
char *malloc(size_t);
char *readFile(FILE *f) {
  fseek(f, 0, SEEK_END);
  size_t size = ftell(f);
  fseek(f, 0, SEEK_SET);
  char *ret = malloc(size + 1);
  fread(ret, 1, size, f);
  ret[size] = 0;
  return ret;
}


x86 assembly (clang, -O0):
<readFile>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
mov    0x2e91(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1060 <fseek@plt>
mov    -0x8(%rbp),%rdi
call   1040 <ftell@plt>
mov    %rax,-0x10(%rbp)
mov    -0x8(%rbp),%rdi
mov    0x2e60(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1060 <fseek@plt>
mov    -0x10(%rbp),%rdi
add    $0x1,%rdi
call   1050 <malloc@plt>
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rdi
mov    -0x10(%rbp),%rdx
mov    -0x8(%rbp),%rcx
mov    $0x1,%esi
call   1030 <fread@plt>
mov    -0x18(%rbp),%rax
mov    -0x10(%rbp),%rcx
movb   $0x0,(%rax,%rcx,1)
mov    -0x18(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<readFile>:
push   %r15
push   %r14
push   %rbx
mov    %rdi,%r15
mov    0x2e99(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1060 <fseek@plt>
mov    %r15,%rdi
call   1040 <ftell@plt>
mov    %rax,%r14
mov    0x2e6e(%rip),%rax
mov    (%rax),%edx
mov    %r15,%rdi
xor    %esi,%esi
call   1060 <fseek@plt>
lea    0x1(%r14),%rdi
call   1050 <malloc@plt>
mov    %rax,%rbx
mov    %rax,%rdi
mov    $0x1,%esi
mov    %r14,%rdx
mov    %r15,%rcx
call   1030 <fread@plt>
movb   $0x0,(%rbx,%r14,1)
mov    %rbx,%rax
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define i8* @readFile(i32* %0) {
%2 = alloca i32*
%3 = alloca i64
%4 = alloca i8*
store i32* %0, i32** %2
%5 = load i32*, i32** %2
%6 = load i32, i32* @SEEK_END
%7 = call i32 @fseek(i32* %5, i32 0, i32 %6)
%8 = load i32*, i32** %2
%9 = call i64 @ftell(i32* %8)
store i64 %9, i64* %3
%10 = load i32*, i32** %2
%11 = load i32, i32* @SEEK_SET
%12 = call i32 @fseek(i32* %10, i32 0, i32 %11)
%13 = load i64, i64* %3
%14 = add i64 %13, 1
%15 = call i8* @malloc(i64 %14)
store i8* %15, i8** %4
%16 = load i8*, i8** %4
%17 = load i64, i64* %3
%18 = load i32*, i32** %2
%19 = call i32 @fread(i8* %16, i32 1, i64 %17, i32* %18)
%20 = load i8*, i8** %4
%21 = load i64, i64* %3
%22 = getelementptr inbounds i8, i8* %20, i64 %21
store i8 0, i8* %22
%23 = load i8*, i8** %4
ret i8* %23
}

LLVM IR (-O2):
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define noalias i8* @readFile(i32* nocapture %0) {
%2 = load i32, i32* @SEEK_END
%3 = tail call i32 @fseek(i32* %0, i32 0, i32 %2)
%4 = tail call i64 @ftell(i32* %0)
%5 = load i32, i32* @SEEK_SET
%6 = tail call i32 @fseek(i32* %0, i32 0, i32 %5)
%7 = add i64 %4, 1
%8 = tail call i8* @malloc(i64 %7)
%9 = tail call i32 @fread(i8* %8, i32 1, i64 %4, i32* %0)
%10 = getelementptr inbounds i8, i8* %8, i64 %4
store i8 0, i8* %10
ret i8* %8
}