#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*/ gets(char *);
int /*<<< orphan*/ printf(char *);
scalar_t__ strcmp(char *, char *);
main() {
  char p1[20];
  char p2[20];
  printf("Digite P1: ");
  gets(p1);
  printf("Digite P2: ");
  gets(p2);
  if (strcmp(p1, p2) == 0)
    printf("\nP1 = P2");
  else
    printf("\nP1 <> P2");
  if (strcmp(p1, "papagaio") == 0)
    printf("\nP1 = papagaio");
  if (strcmp(p2, "papagaio") == 0)
    printf("\nP2 = papagaio");
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
call   1030 <printf@plt>
lea    -0x20(%rbp),%rdi
call   1050 <gets@plt>
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
lea    -0x40(%rbp),%rdi
call   1050 <gets@plt>
lea    -0x20(%rbp),%rdi
lea    -0x40(%rbp),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    1191 <main+0x61>
lea    0xe91(%rip),%rdi
call   1030 <printf@plt>
jmp    119d <main+0x6d>
lea    0xe89(%rip),%rdi
call   1030 <printf@plt>
lea    -0x20(%rbp),%rdi
lea    0xe89(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    11c3 <main+0x93>
lea    0xe6d(%rip),%rdi
call   1030 <printf@plt>
lea    -0x40(%rbp),%rdi
lea    0xe63(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    11e9 <main+0xb9>
lea    0xe56(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x38,%rsp
lea    0xec2(%rip),%rdi
call   1030 <printf@plt>
lea    0x20(%rsp),%r14
mov    %r14,%rdi
call   1050 <gets@plt>
lea    0xeb5(%rip),%rdi
call   1030 <printf@plt>
mov    %rsp,%rbx
mov    %rbx,%rdi
call   1050 <gets@plt>
mov    %r14,%rdi
mov    %rbx,%rsi
call   1040 <strcmp@plt>
test   %rax,%rax
lea    0xe9c(%rip),%rax
lea    0xe9e(%rip),%rdi
cmove  %rax,%rdi
call   1030 <printf@plt>
lea    0xe9e(%rip),%rsi
mov    %r14,%rdi
call   1040 <strcmp@plt>
test   %rax,%rax
jne    11ac <main+0x7c>
lea    0xe84(%rip),%rdi
call   1030 <printf@plt>
lea    0xe7e(%rip),%rsi
mov    %rsp,%rdi
call   1040 <strcmp@plt>
test   %rax,%rax
jne    11cc <main+0x9c>
lea    0xe73(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x38,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [12 x i8] c"Digite P1: \00"
@.str.1 = [12 x i8] c"Digite P2: \00"
@.str.2 = [9 x i8] c"\0AP1 = P2\00"
@.str.3 = [10 x i8] c"\0AP1 <> P2\00"
@.str.4 = [9 x i8] c"papagaio\00"
@.str.5 = [15 x i8] c"\0AP1 = papagaio\00"
@.str.6 = [15 x i8] c"\0AP2 = papagaio\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [20 x i8]
%3 = alloca [20 x i8]
store i32 0, i32* %1
%4 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0))
%5 = getelementptr inbounds [20 x i8], [20 x i8]* %2, i64 0, i64 0
%6 = call i32 @gets(i8* %5)
%7 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0))
%8 = getelementptr inbounds [20 x i8], [20 x i8]* %3, i64 0, i64 0
%9 = call i32 @gets(i8* %8)
%10 = getelementptr inbounds [20 x i8], [20 x i8]* %2, i64 0, i64 0
%11 = getelementptr inbounds [20 x i8], [20 x i8]* %3, i64 0, i64 0
%12 = call i64 @strcmp(i8* %10, i8* %11)
%13 = icmp eq i64 %12, 0
br i1 %13, label %14, label %16
14: ; preds = %0
%15 = call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
br label %18
16: ; preds = %0
%17 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0))
br label %18
18: ; preds = %16, %14
%19 = getelementptr inbounds [20 x i8], [20 x i8]* %2, i64 0, i64 0
%20 = call i64 @strcmp(i8* %19, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%21 = icmp eq i64 %20, 0
br i1 %21, label %22, label %24
22: ; preds = %18
%23 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0))
br label %24
24: ; preds = %22, %18
%25 = getelementptr inbounds [20 x i8], [20 x i8]* %3, i64 0, i64 0
%26 = call i64 @strcmp(i8* %25, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%27 = icmp eq i64 %26, 0
br i1 %27, label %28, label %30
28: ; preds = %24
%29 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.6, i64 0, i64 0))
br label %30
30: ; preds = %28, %24
%31 = load i32, i32* %1
ret i32 %31
}

LLVM IR (-O2):
@.str = [12 x i8] c"Digite P1: \00"
@.str.1 = [12 x i8] c"Digite P2: \00"
@.str.2 = [9 x i8] c"\0AP1 = P2\00"
@.str.3 = [10 x i8] c"\0AP1 <> P2\00"
@.str.4 = [9 x i8] c"papagaio\00"
@.str.5 = [15 x i8] c"\0AP1 = papagaio\00"
@.str.6 = [15 x i8] c"\0AP2 = papagaio\00"
define i32 @main() {
%1 = alloca [20 x i8]
%2 = alloca [20 x i8]
%3 = getelementptr inbounds [20 x i8], [20 x i8]* %1, i64 0, i64 0
%4 = getelementptr inbounds [20 x i8], [20 x i8]* %2, i64 0, i64 0
%5 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @gets(i8* %3)
%7 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @gets(i8* %4)
%9 = call i64 @strcmp(i8* %3, i8* %4)
%10 = icmp eq i64 %9, 0
%11 = select i1 %10, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0)
%12 = call i32 @printf(i8* dereferenceable(1) %11)
%13 = call i64 @strcmp(i8* %3, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%14 = icmp eq i64 %13, 0
br i1 %14, label %15, label %17
15: ; preds = %0
%16 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.5, i64 0, i64 0))
br label %17
17: ; preds = %15, %0
%18 = call i64 @strcmp(i8* %4, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%19 = icmp eq i64 %18, 0
br i1 %19, label %20, label %22
20: ; preds = %17
%21 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.6, i64 0, i64 0))
br label %22
22: ; preds = %20, %17
ret i32 0
}