#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 atoi(char *);
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/ *, char *, int);
int main(int argc, char **argv) {
  char *filename = argv[1];
  int value = atoi(argv[2]);
  FILE *stream = fopen(filename, "w");
  fprintf(stream, "%d\n", value);
  fclose(stream);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %edi,-0x4(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rdi
call   1060 <atoi@plt>
mov    %eax,-0x1c(%rbp)
mov    -0x18(%rbp),%rdi
lea    0xe8a(%rip),%rsi
call   1050 <fopen@plt>
mov    %rax,-0x28(%rbp)
mov    -0x28(%rbp),%rdi
mov    -0x1c(%rbp),%edx
lea    0xe75(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x28(%rbp),%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
mov    0x8(%rsi),%rbx
mov    0x10(%rsi),%rdi
call   1060 <atoi@plt>
mov    %eax,%ebp
lea    0xea7(%rip),%rsi
mov    %rbx,%rdi
call   1050 <fopen@plt>
mov    %rax,%rbx
lea    0xe97(%rip),%rsi
mov    %rax,%rdi
mov    %ebp,%edx
call   1040 <fprintf@plt>
mov    %rbx,%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [2 x i8] c"w\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i8**
%5 = alloca i8*
%6 = alloca i32
%7 = alloca i32*
store i32 %0, i32* %3
store i8** %1, i8*** %4
%8 = load i8**, i8*** %4
%9 = getelementptr inbounds i8*, i8** %8, i64 1
%10 = load i8*, i8** %9
store i8* %10, i8** %5
%11 = load i8**, i8*** %4
%12 = getelementptr inbounds i8*, i8** %11, i64 2
%13 = load i8*, i8** %12
%14 = call i32 @atoi(i8* %13)
store i32 %14, i32* %6
%15 = load i8*, i8** %5
%16 = call i32* @fopen(i8* %15, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32* %16, i32** %7
%17 = load i32*, i32** %7
%18 = load i32, i32* %6
%19 = call i32 @fprintf(i32* %17, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %18)
%20 = load i32*, i32** %7
%21 = call i32 @fclose(i32* %20)
ret i32 0
}

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