#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 *);
void main() {
  int a, i;
  printf("Digite um inteiro: ");
  scanf("%d", &a);
  printf("\nTabuada de %d:\n", a);
  for (i = 1; i <= 10; i++) {
    printf("%d * %d = %d\n", a, i, a * i);
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed7(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x4(%rbp),%esi
lea    0xec7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x8(%rbp)
cmpl   $0xa,-0x8(%rbp)
jg     1191 <main+0x71>
mov    -0x4(%rbp),%esi
mov    -0x8(%rbp),%edx
mov    -0x4(%rbp),%ecx
imul   -0x8(%rbp),%ecx
lea    0xeac(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    115e <main+0x3e>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeda(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%esi
lea    0xec8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%ecx
lea    0xec7(%rip),%rbx
mov    %rbx,%rdi
mov    %ecx,%esi
mov    $0x1,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,1),%ecx
mov    %rbx,%rdi
mov    $0x2,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,2),%ecx
mov    %rbx,%rdi
mov    $0x3,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    0x0(,%rsi,4),%ecx
mov    %rbx,%rdi
mov    $0x4,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,4),%ecx
mov    %rbx,%rdi
mov    $0x5,%edx
xor    %eax,%eax
call   1030 <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   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    0x0(,%rsi,8),%ecx
sub    %esi,%ecx
mov    %rbx,%rdi
mov    $0x7,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    0x0(,%rsi,8),%ecx
mov    %rbx,%rdi
mov    $0x8,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,8),%ecx
mov    %rbx,%rdi
mov    $0x9,%edx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
lea    (%rsi,%rsi,1),%eax
lea    (%rax,%rax,4),%ecx
mov    %rbx,%rdi
mov    $0xa,%edx
xor    %eax,%eax
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Digite um inteiro: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [17 x i8] c"\0ATabuada de %d:\0A\00"
@.str.3 = [14 x i8] c"%d * %d = %d\0A\00"
define void @main() {
%1 = alloca i32
%2 = alloca i32
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 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 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0), i32 %5)
store i32 1, i32* %2
br label %7
7: ; preds = %17, %0
%8 = load i32, i32* %2
%9 = icmp sle i32 %8, 10
br i1 %9, label %10, label %20
10: ; preds = %7
%11 = load i32, i32* %1
%12 = load i32, i32* %2
%13 = load i32, i32* %1
%14 = load i32, i32* %2
%15 = mul nsw i32 %13, %14
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %11, i32 %12, i32 %15)
br label %17
17: ; preds = %10
%18 = load i32, i32* %2
%19 = add nsw i32 %18, 1
store i32 %19, i32* %2
br label %7
20: ; preds = %7
ret void
}

LLVM IR (-O2):
@.str = [20 x i8] c"Digite um inteiro: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [17 x i8] c"\0ATabuada de %d:\0A\00"
@.str.3 = [14 x i8] c"%d * %d = %d\0A\00"
define void @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 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 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = load i32, i32* %1
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %7, i32 1, i32 %7)
%9 = load i32, i32* %1
%10 = shl nsw i32 %9, 1
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %9, i32 2, i32 %10)
%12 = load i32, i32* %1
%13 = mul nsw i32 %12, 3
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %12, i32 3, i32 %13)
%15 = load i32, i32* %1
%16 = shl nsw i32 %15, 2
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %15, i32 4, i32 %16)
%18 = load i32, i32* %1
%19 = mul nsw i32 %18, 5
%20 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %18, i32 5, i32 %19)
%21 = load i32, i32* %1
%22 = mul nsw i32 %21, 6
%23 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %21, i32 6, i32 %22)
%24 = load i32, i32* %1
%25 = mul nsw i32 %24, 7
%26 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %24, i32 7, i32 %25)
%27 = load i32, i32* %1
%28 = shl nsw i32 %27, 3
%29 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %27, i32 8, i32 %28)
%30 = load i32, i32* %1
%31 = mul nsw i32 %30, 9
%32 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %30, i32 9, i32 %31)
%33 = load i32, i32* %1
%34 = mul nsw i32 %33, 10
%35 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %33, i32 10, i32 %34)
ret void
}