#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, int, int);
int main() {
  int multi = 1, ans;
  while (multi <= 10) {
    ans = 2 * multi;
    printf("%d x %d = %d \n", 2, multi, ans);
    multi++;
    ans = 0;
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0x8(%rbp)
cmpl   $0xa,-0x8(%rbp)
jg     1165 <main+0x55>
mov    -0x8(%rbp),%eax
shl    $0x1,%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%edx
mov    -0xc(%rbp),%ecx
lea    0xeba(%rip),%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
jmp    1126 <main+0x16>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee8(%rip),%rbx
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x1,%edx
mov    $0x2,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x2,%edx
mov    $0x4,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x3,%edx
mov    $0x6,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x4,%edx
mov    $0x8,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x5,%edx
mov    $0xa,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x6,%edx
mov    $0xc,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x7,%edx
mov    $0xe,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x8,%edx
mov    $0x10,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0x9,%edx
mov    $0x12,%ecx
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
mov    $0xa,%edx
mov    $0x14,%ecx
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [15 x i8] c"%d x %d = %d \0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 1, i32* %2
br label %4
4: ; preds = %7, %0
%5 = load i32, i32* %2
%6 = icmp sle i32 %5, 10
br i1 %6, label %7, label %15
7: ; preds = %4
%8 = load i32, i32* %2
%9 = mul nsw i32 2, %8
store i32 %9, i32* %3
%10 = load i32, i32* %2
%11 = load i32, i32* %3
%12 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 %10, i32 %11)
%13 = load i32, i32* %2
%14 = add nsw i32 %13, 1
store i32 %14, i32* %2
store i32 0, i32* %3
br label %4
15: ; preds = %4
ret i32 0
}

LLVM IR (-O2):
@.str = [15 x i8] c"%d x %d = %d \0A\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 1, i32 2)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 2, i32 4)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 3, i32 6)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 4, i32 8)
%5 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 5, i32 10)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 6, i32 12)
%7 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 7, i32 14)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 8, i32 16)
%9 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 9, i32 18)
%10 = tail call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i32 2, i32 10, i32 20)
ret i32 0
}