#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 n, a = 10;
  printf("\tPrograma que Muestra una tabla de Multiplicar.\n\n");
  printf("Introduce el número de la tabla a generar: ");
  scanf("%d", &n);
  printf("\n\t A x  B =  AB\n\n");
  while (a >= 1) {
    printf("\t%2d x %2d = %2d\n", n, a, n * a);
    a--;
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0xa,-0xc(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf06(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xef9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x1,-0xc(%rbp)
jl     11a3 <main+0x83>
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
mov    -0x8(%rbp),%ecx
imul   -0xc(%rbp),%ecx
lea    0xee6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,-0xc(%rbp)
jmp    1170 <main+0x50>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xf06(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed7(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
lea    0xf0c(%rip),%rdi
call   1030 <puts@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,1),%eax
lea    (%rax,%rax,4),%ecx
lea    0xeb3(%rip),%rbx
mov    %rbx,%rdi
mov    $0xa,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,8),%ecx
mov    %rbx,%rdi
mov    $0x9,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    0x0(,%rsi,8),%ecx
mov    %rbx,%rdi
mov    $0x8,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    0x0(,%rsi,8),%ecx
sub    %esi,%ecx
mov    %rbx,%rdi
mov    $0x7,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,1),%eax
lea    (%rax,%rax,2),%ecx
mov    %rbx,%rdi
mov    $0x6,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,4),%ecx
mov    %rbx,%rdi
mov    $0x5,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    0x0(,%rsi,4),%ecx
mov    %rbx,%rdi
mov    $0x4,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,2),%ecx
mov    %rbx,%rdi
mov    $0x3,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,1),%ecx
mov    %rbx,%rdi
mov    $0x2,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%ecx
mov    %rbx,%rdi
mov    %ecx,%esi
mov    $0x1,%edx
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [50 x i8] c"\09Programa que Muestra una tabla de Multiplicar.\0A\0A\00"
@.str.1 = [45 x i8] c"Introduce el n\C3\BAmero de la tabla a generar: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [18 x i8] c"\0A\09 A x B = AB\0A\0A\00"
@.str.4 = [18 x i8] c"\09%2d x %2d = %2d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 10, i32* %3
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.3, i64 0, i64 0))
br label %8
8: ; preds = %11, %0
%9 = load i32, i32* %3
%10 = icmp sge i32 %9, 1
br i1 %10, label %11, label %20
11: ; preds = %8
%12 = load i32, i32* %2
%13 = load i32, i32* %3
%14 = load i32, i32* %2
%15 = load i32, i32* %3
%16 = mul nsw i32 %14, %15
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %12, i32 %13, i32 %16)
%18 = load i32, i32* %3
%19 = add nsw i32 %18, -1
store i32 %19, i32* %3
br label %8
20: ; preds = %8
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [45 x i8] c"Introduce el n\C3\BAmero de la tabla a generar: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.4 = [18 x i8] c"\09%2d x %2d = %2d\0A\00"
@str = [49 x i8] c"\09Programa que Muestra una tabla de Multiplicar.\0A\00"
@str.5 = [17 x i8] c"\0A\09 A x B = AB\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%6 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str.5, i64 0, i64 0))
%7 = load i32, i32* %1
%8 = mul nsw i32 %7, 10
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %7, i32 10, i32 %8)
%10 = load i32, i32* %1
%11 = mul nsw i32 %10, 9
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %10, i32 9, i32 %11)
%13 = load i32, i32* %1
%14 = shl nsw i32 %13, 3
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %13, i32 8, i32 %14)
%16 = load i32, i32* %1
%17 = mul nsw i32 %16, 7
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %16, i32 7, i32 %17)
%19 = load i32, i32* %1
%20 = mul nsw i32 %19, 6
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %19, i32 6, i32 %20)
%22 = load i32, i32* %1
%23 = mul nsw i32 %22, 5
%24 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %22, i32 5, i32 %23)
%25 = load i32, i32* %1
%26 = shl nsw i32 %25, 2
%27 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %25, i32 4, i32 %26)
%28 = load i32, i32* %1
%29 = mul nsw i32 %28, 3
%30 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %28, i32 3, i32 %29)
%31 = load i32, i32* %1
%32 = shl nsw i32 %31, 1
%33 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %31, i32 2, i32 %32)
%34 = load i32, i32* %1
%35 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0), i32 %34, i32 1, i32 %34)
ret i32 0
}