#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*/ fprintf(int /*<<< orphan*/ *, char *, int);
int /*<<< orphan*/ fscanf(int /*<<< orphan*/ *, char *, char *);
int strLen(char *);
int main() {
  FILE *in = fopen("task.in", "r");
  FILE *out = fopen("task.out", "w");
  char string[100];
  fscanf(in, "%s", string);
  fclose(in);
  fprintf(out, "%d\n", strLen(string));
  fclose(out);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x90,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xe97(%rip),%rdi
lea    0xe98(%rip),%rsi
call   1070 <fopen@plt>
mov    %rax,-0x10(%rbp)
lea    0xe8a(%rip),%rdi
lea    0xe8c(%rip),%rsi
call   1070 <fopen@plt>
mov    %rax,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
lea    -0x80(%rbp),%rdx
lea    0xe76(%rip),%rsi
call   1040 <fscanf@plt>
mov    -0x10(%rbp),%rdi
call   1030 <fclose@plt>
mov    -0x18(%rbp),%rax
mov    %rax,-0x88(%rbp)
lea    -0x80(%rbp),%rdi
call   1060 <strLen@plt>
mov    -0x88(%rbp),%rdi
mov    %eax,%edx
lea    0xe47(%rip),%rsi
call   1050 <fprintf@plt>
mov    -0x18(%rbp),%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x90,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x70,%rsp
lea    0xea0(%rip),%rdi
lea    0xea1(%rip),%rsi
call   1070 <fopen@plt>
mov    %rax,%rbx
lea    0xe94(%rip),%rdi
lea    0xe96(%rip),%rsi
call   1070 <fopen@plt>
mov    %rax,%r14
lea    0xe89(%rip),%rsi
mov    %rsp,%r15
mov    %rbx,%rdi
mov    %r15,%rdx
call   1040 <fscanf@plt>
mov    %rbx,%rdi
call   1030 <fclose@plt>
mov    %r15,%rdi
call   1060 <strLen@plt>
lea    0xe67(%rip),%rsi
mov    %r14,%rdi
mov    %eax,%edx
call   1050 <fprintf@plt>
mov    %r14,%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
add    $0x70,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [8 x i8] c"task.in\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [9 x i8] c"task.out\00"
@.str.3 = [2 x i8] c"w\00"
@.str.4 = [3 x i8] c"%s\00"
@.str.5 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32*
%3 = alloca i32*
%4 = alloca [100 x i8]
store i32 0, i32* %1
%5 = call i32* @fopen(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
store i32* %5, i32** %2
%6 = call i32* @fopen(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
store i32* %6, i32** %3
%7 = load i32*, i32** %2
%8 = getelementptr inbounds [100 x i8], [100 x i8]* %4, i64 0, i64 0
%9 = call i32 @fscanf(i32* %7, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i8* %8)
%10 = load i32*, i32** %2
%11 = call i32 @fclose(i32* %10)
%12 = load i32*, i32** %3
%13 = getelementptr inbounds [100 x i8], [100 x i8]* %4, i64 0, i64 0
%14 = call i32 @strLen(i8* %13)
%15 = call i32 @fprintf(i32* %12, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i32 %14)
%16 = load i32*, i32** %3
%17 = call i32 @fclose(i32* %16)
ret i32 0
}

LLVM IR (-O2):
@.str = [8 x i8] c"task.in\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [9 x i8] c"task.out\00"
@.str.3 = [2 x i8] c"w\00"
@.str.4 = [3 x i8] c"%s\00"
@.str.5 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca [100 x i8]
%2 = tail call i32* @fopen(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%3 = tail call i32* @fopen(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%4 = getelementptr inbounds [100 x i8], [100 x i8]* %1, i64 0, i64 0
%5 = call i32 @fscanf(i32* %2, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i8* %4)
%6 = call i32 @fclose(i32* %2)
%7 = call i32 @strLen(i8* %4)
%8 = call i32 @fprintf(i32* %3, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i32 %7)
%9 = call i32 @fclose(i32* %3)
ret i32 0
}