#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*/ printf(char *);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int dia;
  printf("Digite um mês (Escolha de 1 a 12): ");
  scanf("%d", &dia);
  switch (dia) {
  case 1:
    printf("Janeiro!");
    break;
  case 2:
    printf("Fevereiro!");
    break;
  case 3:
    printf("Março!");
    break;
  case 4:
    printf("Abril!");
    break;
  case 5:
    printf("Maio!");
    break;
  case 6:
    printf("Junho!");
    break;
  case 7:
    printf("Julho!");
    break;
  case 8:
    printf("Agosto!");
    break;
  case 9:
    printf("Setembro!");
    break;
  case 10:
    printf("Outubro!");
    break;
  case 11:
    printf("Novembro!");
    break;
  case 12:
    printf("Dezembro!");
    break;
  default:
    printf("Mês inválido!");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xefa(%rip),%rdi
call   1030 <printf@plt>
lea    0xf13(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,%ecx
mov    %rcx,-0x10(%rbp)
sub    $0xb,%eax
ja     1240 <main+0x120>
mov    -0x10(%rbp),%rax
lea    0xe95(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
lea    0xedd(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xed5(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xecf(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xec6(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xebc(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xea7(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xe9d(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xe94(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xe8d(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xe85(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xe7e(%rip),%rdi
call   1030 <printf@plt>
jmp    124c <main+0x12c>
lea    0xe77(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
call   1030 <printf@plt>
lea    0xef1(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
add    $0xffffffff,%eax
cmp    $0xb,%eax
ja     115c <main+0x3c>
cltq
lea    0xf4d(%rip),%rcx
movslq (%rcx,%rax,4),%rdi
add    %rcx,%rdi
jmp    1163 <main+0x43>
lea    0xf2b(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [37 x i8] c"Digite um m\C3\AAs (Escolha de 1 a 12): \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [9 x i8] c"Janeiro!\00"
@.str.3 = [11 x i8] c"Fevereiro!\00"
@.str.4 = [8 x i8] c"Mar\C3\A7o!\00"
@.str.5 = [7 x i8] c"Abril!\00"
@.str.6 = [6 x i8] c"Maio!\00"
@.str.7 = [7 x i8] c"Junho!\00"
@.str.8 = [7 x i8] c"Julho!\00"
@.str.9 = [8 x i8] c"Agosto!\00"
@.str.10 = [10 x i8] c"Setembro!\00"
@.str.11 = [9 x i8] c"Outubro!\00"
@.str.12 = [10 x i8] c"Novembro!\00"
@.str.13 = [10 x i8] c"Dezembro!\00"
@.str.14 = [16 x i8] c"M\C3\AAs inv\C3\A1lido!\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @printf(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%5 = load i32, i32* %2
switch i32 %5, label %30 [
i32 1, label %6
i32 2, label %8
i32 3, label %10
i32 4, label %12
i32 5, label %14
i32 6, label %16
i32 7, label %18
i32 8, label %20
i32 9, label %22
i32 10, label %24
i32 11, label %26
i32 12, label %28
]
6: ; preds = %0
%7 = call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.2, i64 0, i64 0))
br label %32
8: ; preds = %0
%9 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
br label %32
10: ; preds = %0
%11 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.4, i64 0, i64 0))
br label %32
12: ; preds = %0
%13 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
br label %32
14: ; preds = %0
%15 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.6, i64 0, i64 0))
br label %32
16: ; preds = %0
%17 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.7, i64 0, i64 0))
br label %32
18: ; preds = %0
%19 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.8, i64 0, i64 0))
br label %32
20: ; preds = %0
%21 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0))
br label %32
22: ; preds = %0
%23 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.10, i64 0, i64 0))
br label %32
24: ; preds = %0
%25 = call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.11, i64 0, i64 0))
br label %32
26: ; preds = %0
%27 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.12, i64 0, i64 0))
br label %32
28: ; preds = %0
%29 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.13, i64 0, i64 0))
br label %32
30: ; preds = %0
%31 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.14, i64 0, i64 0))
br label %32
32: ; preds = %30, %28, %26, %24, %22, %20, %18, %16, %14, %12, %10, %8, %6
ret i32 0
}

LLVM IR (-O2):
@.str = [37 x i8] c"Digite um m\C3\AAs (Escolha de 1 a 12): \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [9 x i8] c"Janeiro!\00"
@.str.3 = [11 x i8] c"Fevereiro!\00"
@.str.4 = [8 x i8] c"Mar\C3\A7o!\00"
@.str.5 = [7 x i8] c"Abril!\00"
@.str.6 = [6 x i8] c"Maio!\00"
@.str.7 = [7 x i8] c"Junho!\00"
@.str.8 = [7 x i8] c"Julho!\00"
@.str.9 = [8 x i8] c"Agosto!\00"
@.str.10 = [10 x i8] c"Setembro!\00"
@.str.11 = [9 x i8] c"Outubro!\00"
@.str.12 = [10 x i8] c"Novembro!\00"
@.str.13 = [10 x i8] c"Dezembro!\00"
@.str.14 = [16 x i8] c"M\C3\AAs inv\C3\A1lido!\00"
@reltable.main = [12 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([9 x i8]* @.str.2 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([11 x i8]* @.str.3 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.4 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.5 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([6 x i8]* @.str.6 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.7 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([7 x i8]* @.str.8 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([8 x i8]* @.str.9 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([10 x i8]* @.str.10 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([9 x i8]* @.str.11 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([10 x i8]* @.str.12 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([10 x i8]* @.str.13 to i64), i64 ptrtoint ([12 x i32]* @reltable.main to i64)) to i32)]
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = add i32 %5, -1
%7 = icmp ult i32 %6, 12
br i1 %7, label %8, label %12
8: ; preds = %0
%9 = sext i32 %6 to i64
%10 = shl i64 %9, 2
%11 = call i8* @llvm.load.relative.i64(i8* bitcast ([12 x i32]* @reltable.main to i8*), i64 %10)
br label %12
12: ; preds = %0, %8
%13 = phi i8* [ %11, %8 ], [ getelementptr inbounds ([16 x i8], [16 x i8]* @.str.14, i64 0, i64 0), %0 ]
%14 = call i32 @printf(i8* dereferenceable(1) %13)
ret i32 0
}