#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 /*<<< orphan*/ copia();
int obtenlinea();
int /*<<< orphan*/ printf(char *, char *);
int /*<<< orphan*/ voltea(int);
int main(void) {
  int longitud;
  extern int max;
  extern char linea_max[1000];
  max = 0;
  while ((longitud = obtenlinea()) > 0)
    if (longitud > max) {
      max = longitud;
      copia();
      voltea(max);
    }
  if (max > 0)
    printf("%s", linea_max);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e82(%rip),%rax
movl   $0x0,(%rax)
mov    $0x0,%al
call   1030 <obtenlinea@plt>
mov    %eax,-0x8(%rbp)
cmp    $0x0,%eax
jle    11a7 <main+0x67>
mov    -0x8(%rbp),%eax
mov    0x2e5f(%rip),%rcx
cmp    (%rcx),%eax
jle    11a2 <main+0x62>
mov    -0x8(%rbp),%ecx
mov    0x2e4d(%rip),%rax
mov    %ecx,(%rax)
mov    $0x0,%al
call   1040 <copia@plt>
mov    0x2e3d(%rip),%rax
mov    (%rax),%edi
call   1060 <voltea@plt>
jmp    115c <main+0x1c>
mov    0x2e2a(%rip),%rax
cmpl   $0x0,(%rax)
jle    11ca <main+0x8a>
lea    0xe42(%rip),%rdi
mov    0x2e1b(%rip),%rsi
call   1050 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    0x2e90(%rip),%rbx
movl   $0x0,(%rbx)
xchg   %ax,%ax
xor    %eax,%eax
call   1030 <obtenlinea@plt>
test   %eax,%eax
jle    1171 <main+0x31>
cmp    (%rbx),%eax
jle    1150 <main+0x10>
mov    %eax,(%rbx)
xor    %eax,%eax
call   1040 <copia@plt>
mov    (%rbx),%edi
call   1060 <voltea@plt>
jmp    1150 <main+0x10>
cmpl   $0x0,(%rbx)
jle    1189 <main+0x49>
lea    0xe83(%rip),%rdi
mov    0x2e5c(%rip),%rsi
call   1050 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@max = external global i32
@.str = [3 x i8] c"%s\00"
@linea_max = external global [1000 x i8]
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 0, i32* @max
br label %3
3: ; preds = %15, %0
%4 = call i32 (...) @obtenlinea()
store i32 %4, i32* %2
%5 = icmp sgt i32 %4, 0
br i1 %5, label %6, label %16
6: ; preds = %3
%7 = load i32, i32* %2
%8 = load i32, i32* @max
%9 = icmp sgt i32 %7, %8
br i1 %9, label %10, label %15
10: ; preds = %6
%11 = load i32, i32* %2
store i32 %11, i32* @max
%12 = call i32 (...) @copia()
%13 = load i32, i32* @max
%14 = call i32 @voltea(i32 %13)
br label %15
15: ; preds = %10, %6
br label %3
16: ; preds = %3
%17 = load i32, i32* @max
%18 = icmp sgt i32 %17, 0
br i1 %18, label %19, label %21
19: ; preds = %16
%20 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([1000 x i8], [1000 x i8]* @linea_max, i64 0, i64 0))
br label %21
21: ; preds = %19, %16
ret i32 0
}

LLVM IR (-O2):
@max = external global i32
@.str = [3 x i8] c"%s\00"
@linea_max = external global [1000 x i8]
define i32 @main() {
store i32 0, i32* @max
%1 = tail call i32 (...) @obtenlinea()
%2 = icmp sgt i32 %1, 0
br i1 %2, label %3, label %14
3: ; preds = %0, %11
%4 = phi i32 [ %12, %11 ], [ %1, %0 ]
%5 = load i32, i32* @max
%6 = icmp sgt i32 %4, %5
br i1 %6, label %7, label %11
7: ; preds = %3
store i32 %4, i32* @max
%8 = tail call i32 (...) @copia()
%9 = load i32, i32* @max
%10 = tail call i32 @voltea(i32 %9)
br label %11
11: ; preds = %7, %3
%12 = tail call i32 (...) @obtenlinea()
%13 = icmp sgt i32 %12, 0
br i1 %13, label %3, label %14
14: ; preds = %11, %0
%15 = load i32, i32* @max
%16 = icmp sgt i32 %15, 0
br i1 %16, label %17, label %19
17: ; preds = %14
%18 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([1000 x i8], [1000 x i8]* @linea_max, i64 0, i64 0))
br label %19
19: ; preds = %17, %14
ret i32 0
}