#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 main(void) {
  printf("1 << 0 = %d\n", 1 << 0);
  printf("1 << 1 = %d\n", 1 << 1);
  printf("1 << 2 = %d\n", 1 << 2);
  printf("1 << 3 = %d\n", 1 << 3);
  printf("1 << 4 = %d\n", 1 << 4);
  printf("1 << 10 = %d\n", 1 << 10);
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x1,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed4(%rip),%rdi
mov    $0x2,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xece(%rip),%rdi
mov    $0x4,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec8(%rip),%rdi
mov    $0x8,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec2(%rip),%rdi
mov    $0x10,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebc(%rip),%rdi
mov    $0x400,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe73(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed2(%rip),%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xecc(%rip),%rdi
mov    $0x4,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec6(%rip),%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec0(%rip),%rdi
mov    $0x10,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeba(%rip),%rdi
mov    $0x400,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [13 x i8] c"1 << 0 = %d\0A\00"
@.str.1 = [13 x i8] c"1 << 1 = %d\0A\00"
@.str.2 = [13 x i8] c"1 << 2 = %d\0A\00"
@.str.3 = [13 x i8] c"1 << 3 = %d\0A\00"
@.str.4 = [13 x i8] c"1 << 4 = %d\0A\00"
@.str.5 = [14 x i8] c"1 << 10 = %d\0A\00"
@.str.6 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i32 1)
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), i32 2)
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i32 4)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), i32 8)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0), i32 16)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.5, i64 0, i64 0), i32 1024)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.6, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [13 x i8] c"1 << 0 = %d\0A\00"
@.str.1 = [13 x i8] c"1 << 1 = %d\0A\00"
@.str.2 = [13 x i8] c"1 << 2 = %d\0A\00"
@.str.3 = [13 x i8] c"1 << 3 = %d\0A\00"
@.str.4 = [13 x i8] c"1 << 4 = %d\0A\00"
@.str.5 = [14 x i8] c"1 << 10 = %d\0A\00"
define i32 @main() {
%1 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i32 1)
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), i32 2)
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i32 4)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), i32 8)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0), i32 16)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.5, i64 0, i64 0), i32 1024)
%7 = tail call i32 @putchar(i32 10)
ret i32 0
}