#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*/ printf(char *);
int main() {
  FILE *my_stream;
  my_stream = fopen("snazzyjazz.txt", "r");
  if (my_stream == NULL)
    printf("File could not be opened\n");
  else {
    printf("File opend! Closing it now...\n");
    fclose(my_stream);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
lea    0xec2(%rip),%rsi
call   1050 <fopen@plt>
mov    %rax,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    1172 <main+0x42>
lea    0xea9(%rip),%rdi
call   1040 <printf@plt>
jmp    1187 <main+0x57>
lea    0xeb2(%rip),%rdi
call   1040 <printf@plt>
mov    -0x10(%rbp),%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xec8(%rip),%rdi
lea    0xed0(%rip),%rsi
call   1050 <fopen@plt>
test   %rax,%rax
je     1162 <main+0x32>
mov    %rax,%rbx
lea    0xebe(%rip),%rdi
call   1030 <puts@plt>
mov    %rbx,%rdi
call   1040 <fclose@plt>
jmp    116e <main+0x3e>
lea    0xec6(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [15 x i8] c"snazzyjazz.txt\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [26 x i8] c"File could not be opened\0A\00"
@.str.3 = [31 x i8] c"File opend! Closing it now...\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32*
store i32 0, i32* %1
%3 = call i32* @fopen(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
store i32* %3, i32** %2
%4 = load i32*, i32** %2
%5 = icmp eq i32* %4, null
br i1 %5, label %6, label %8
6: ; preds = %0
%7 = call i32 @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str.2, i64 0, i64 0))
br label %12
8: ; preds = %0
%9 = call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.3, i64 0, i64 0))
%10 = load i32*, i32** %2
%11 = call i32 @fclose(i32* %10)
br label %12
12: ; preds = %8, %6
ret i32 0
}

LLVM IR (-O2):
@.str = [15 x i8] c"snazzyjazz.txt\00"
@.str.1 = [2 x i8] c"r\00"
@str = [30 x i8] c"File opend! Closing it now...\00"
@str.4 = [25 x i8] c"File could not be opened\00"
define i32 @main() {
%1 = tail call i32* @fopen(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%2 = icmp eq i32* %1, null
br i1 %2, label %3, label %5
3: ; preds = %0
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str.4, i64 0, i64 0))
br label %8
5: ; preds = %0
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @str, i64 0, i64 0))
%7 = tail call i32 @fclose(i32* %1)
br label %8
8: ; preds = %5, %3
ret i32 0
}