#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 */

/* Variables and functions */
int EOF;
int getchar();
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  char aux;
  int c, n = 0, lineas = 0;
  while ((c = getchar()) != EOF) {
    aux = c;
    if (aux == '\n') {
      lineas++;
    }
    n++;
  }
  printf("count lineas %d\n", lineas);
  printf("\n");
  return (0);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    $0x0,%al
call   1040 <getchar@plt>
mov    %eax,-0xc(%rbp)
mov    0x2e9a(%rip),%rcx
cmp    (%rcx),%eax
je     1180 <main+0x60>
mov    -0xc(%rbp),%eax
mov    %al,-0x5(%rbp)
movsbl -0x5(%rbp),%eax
cmp    $0xa,%eax
jne    1172 <main+0x52>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    113d <main+0x1d>
mov    -0x14(%rbp),%esi
lea    0xe76(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe77(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
xor    %ebx,%ebx
xor    %eax,%eax
call   1050 <getchar@plt>
mov    0x2ea4(%rip),%r14
cmp    (%r14),%eax
je     1165 <main+0x35>
xor    %ebx,%ebx
nopl   0x0(%rax,%rax,1)
xor    %ecx,%ecx
cmp    $0xa,%al
sete   %cl
add    %ecx,%ebx
xor    %eax,%eax
call   1050 <getchar@plt>
cmp    (%r14),%eax
jne    1150 <main+0x20>
lea    0xe94(%rip),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@EOF = global i32 0
@.str = [17 x i8] c"count lineas %d\0A\00"
@.str.1 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i8
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %4
store i32 0, i32* %5
br label %6
6: ; preds = %19, %0
%7 = call i32 (...) @getchar()
store i32 %7, i32* %3
%8 = load i32, i32* @EOF
%9 = icmp ne i32 %7, %8
br i1 %9, label %10, label %22
10: ; preds = %6
%11 = load i32, i32* %3
%12 = trunc i32 %11 to i8
store i8 %12, i8* %2
%13 = load i8, i8* %2
%14 = sext i8 %13 to i32
%15 = icmp eq i32 %14, 10
br i1 %15, label %16, label %19
16: ; preds = %10
%17 = load i32, i32* %5
%18 = add nsw i32 %17, 1
store i32 %18, i32* %5
br label %19
19: ; preds = %16, %10
%20 = load i32, i32* %4
%21 = add nsw i32 %20, 1
store i32 %21, i32* %4
br label %6
22: ; preds = %6
%23 = load i32, i32* %5
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i32 %23)
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@EOF = global i32 0
@.str = [17 x i8] c"count lineas %d\0A\00"
define i32 @main() {
%1 = tail call i32 (...) @getchar()
%2 = load i32, i32* @EOF
%3 = icmp eq i32 %1, %2
br i1 %3, label %14, label %4
4: ; preds = %0, %4
%5 = phi i32 [ %11, %4 ], [ %1, %0 ]
%6 = phi i32 [ %10, %4 ], [ 0, %0 ]
%7 = and i32 %5, 255
%8 = icmp eq i32 %7, 10
%9 = zext i1 %8 to i32
%10 = add nuw nsw i32 %6, %9
%11 = tail call i32 (...) @getchar()
%12 = load i32, i32* @EOF
%13 = icmp eq i32 %11, %12
br i1 %13, label %14, label %4
14: ; preds = %4, %0
%15 = phi i32 [ 0, %0 ], [ %10, %4 ]
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i32 %15)
%17 = tail call i32 @putchar(i32 10)
ret i32 0
}