#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 */
typedef int /*<<< orphan*/ p;

/* Variables and functions */
int /*<<< orphan*/ printf(char *, ...);
int main() {
  int y = 1000;
  int *p;
  p = &y;
  printf("The variable has value %d and the address %p.\n", y, &y);
  printf("The pointer stores %p and points at value %d.\n", p, *p);
  printf("The pointer itself has address %p and size %d.\n", &p, sizeof(p));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x3e8,-0x8(%rbp)
lea    -0x8(%rbp),%rax
mov    %rax,-0x10(%rbp)
mov    -0x8(%rbp),%esi
lea    0xec8(%rip),%rdi
lea    -0x8(%rbp),%rdx
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%rsi
mov    -0x10(%rbp),%rax
mov    (%rax),%edx
lea    0xedb(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xefc(%rip),%rdi
lea    -0x10(%rbp),%rsi
mov    $0x8,%edx
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
movl   $0x3e8,0x4(%rsp)
lea    0x4(%rsp),%rbx
mov    %rbx,0x8(%rsp)
lea    0xed2(%rip),%rdi
mov    $0x3e8,%esi
mov    %rbx,%rdx
xor    %eax,%eax
call   1030 <printf@plt>
mov    0x4(%rsp),%edx
lea    0xee7(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xf05(%rip),%rdi
lea    0x8(%rsp),%rsi
mov    $0x8,%edx
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [47 x i8] c"The variable has value %d and the address %p.\0A\00"
@.str.1 = [47 x i8] c"The pointer stores %p and points at value %d.\0A\00"
@.str.2 = [48 x i8] c"The pointer itself has address %p and size %d.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32*
store i32 0, i32* %1
store i32 1000, i32* %2
store i32* %2, i32** %3
%4 = load i32, i32* %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0), i32 %4, i32* %2)
%6 = load i32*, i32** %3
%7 = load i32*, i32** %3
%8 = load i32, i32* %7
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.1, i64 0, i64 0), i32* %6, i32 %8)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.2, i64 0, i64 0), i32** %3, i64 8)
ret i32 0
}

LLVM IR (-O2):
@.str = [47 x i8] c"The variable has value %d and the address %p.\0A\00"
@.str.1 = [47 x i8] c"The pointer stores %p and points at value %d.\0A\00"
@.str.2 = [48 x i8] c"The pointer itself has address %p and size %d.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32*
%3 = bitcast i32* %1 to i8*
store i32 1000, i32* %1
%4 = bitcast i32** %2 to i8*
store i32* %1, i32** %2
%5 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0), i32 1000, i32* %1)
%6 = load i32, i32* %1
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @.str.1, i64 0, i64 0), i32* %1, i32 %6)
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 x i8]* @.str.2, i64 0, i64 0), i32** %2, i64 8)
ret i32 0
}