#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*/ *fopen(char *, char *);
int /*<<< orphan*/ fscanf(int /*<<< orphan*/ *, char *, char *);
int /*<<< orphan*/ printf(char *, char *);
int main() {
  FILE *fptr = fopen("xd.tmp", "r");
  char str[256];
  fscanf(fptr, " %s", str);
  printf("file read: %s\n", str);
  fclose(fptr);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x110,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xea7(%rip),%rdi
lea    0xea7(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    -0x110(%rbp),%rdx
lea    0xe8e(%rip),%rsi
call   1050 <fscanf@plt>
lea    -0x110(%rbp),%rsi
lea    0xe7f(%rip),%rdi
call   1040 <printf@plt>
mov    -0x10(%rbp),%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x110,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x108,%rsp
lea    0xeaf(%rip),%rdi
lea    0xeaf(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,%rbx
lea    0xea2(%rip),%rsi
mov    %rsp,%r14
mov    %rax,%rdi
mov    %r14,%rdx
call   1050 <fscanf@plt>
lea    0xe91(%rip),%rdi
mov    %r14,%rsi
call   1040 <printf@plt>
mov    %rbx,%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x108,%rsp
pop    %rbx
pop    %r14
ret

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

LLVM IR (-O2):
@.str = [7 x i8] c"xd.tmp\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [4 x i8] c" %s\00"
@.str.3 = [15 x i8] c"file read: %s\0A\00"
define i32 @main() {
%1 = alloca [256 x i8]
%2 = tail call i32* @fopen(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%3 = getelementptr inbounds [256 x i8], [256 x i8]* %1, i64 0, i64 0
%4 = call i32 @fscanf(i32* %2, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8* %3)
%5 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i8* %3)
%6 = call i32 @fclose(i32* %2)
ret i32 0
}