#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*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ fgets(char *, int, int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
int /*<<< orphan*/ printf(char *, char *);
int main(int argc, char **argv) {
  FILE *fd = fopen(argv[1], "r");
  char buf[256];
  fgets(buf, 2014, fd);
  fclose(fd);
  printf("%s\n", buf);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x120,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
lea    0xe98(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,-0x18(%rbp)
lea    -0x120(%rbp),%rdi
mov    -0x18(%rbp),%rdx
mov    $0x7de,%esi
call   1050 <fgets@plt>
mov    -0x18(%rbp),%rdi
call   1030 <fclose@plt>
lea    -0x120(%rbp),%rsi
lea    0xe65(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x120,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x108,%rsp
mov    0x8(%rsi),%rdi
lea    0xeab(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,%rbx
mov    %rsp,%r14
mov    %r14,%rdi
mov    $0x7de,%esi
mov    %rax,%rdx
call   1050 <fgets@plt>
mov    %rbx,%rdi
call   1030 <fclose@plt>
lea    0xe83(%rip),%rdi
mov    %r14,%rsi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x108,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [2 x i8] c"r\00"
@.str.1 = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32*
%7 = alloca [256 x i8]
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i8**, i8*** %5
%9 = getelementptr inbounds i8*, i8** %8, i64 1
%10 = load i8*, i8** %9
%11 = call i32* @fopen(i8* %10, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32* %11, i32** %6
%12 = getelementptr inbounds [256 x i8], [256 x i8]* %7, i64 0, i64 0
%13 = load i32*, i32** %6
%14 = call i32 @fgets(i8* %12, i32 2014, i32* %13)
%15 = load i32*, i32** %6
%16 = call i32 @fclose(i32* %15)
%17 = getelementptr inbounds [256 x i8], [256 x i8]* %7, i64 0, i64 0
%18 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %17)
ret i32 0
}

LLVM IR (-O2):
@.str = [2 x i8] c"r\00"
@.str.1 = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = alloca [256 x i8]
%4 = getelementptr inbounds i8*, i8** %1, i64 1
%5 = load i8*, i8** %4
%6 = tail call i32* @fopen(i8* %5, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%7 = getelementptr inbounds [256 x i8], [256 x i8]* %3, i64 0, i64 0
%8 = call i32 @fgets(i8* %7, i32 2014, i32* %6)
%9 = call i32 @fclose(i32* %6)
%10 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %7)
ret i32 0
}