int main() {
  int i = 2, *ip = &i, **ipp = &ip;
  printf("i: %d\n", i);
  printf("ip: 0x%x\n", ip);
  printf("ipp: 0x%x\n", ipp);
  printf("*ip: %d\n", *ip);
  printf("**ipp: %d\n", **ipp);
  printf("ip[0]: %d\n", ip[0]);
  printf("ipp[0][0]: %d\n", ipp[0][0]);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x2,-0x8(%rbp)
lea    -0x8(%rbp),%rax
mov    %rax,-0x10(%rbp)
lea    -0x10(%rbp),%rax
mov    %rax,-0x18(%rbp)
mov    -0x8(%rbp),%esi
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%rsi
lea    0xeb5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%rsi
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%rax
mov    (%rax),%esi
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%rax
mov    (%rax),%rax
mov    (%rax),%esi
lea    0xe96(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%rax
mov    (%rax),%esi
lea    0xe8d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%rax
mov    (%rax),%rax
mov    (%rax),%esi
lea    0xe81(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
movl   $0x2,0xc(%rsp)
lea    0xc(%rsp),%rbx
mov    %rbx,(%rsp)
lea    0xed3(%rip),%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xec7(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xec0(%rip),%rdi
mov    %rsp,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
mov    (%rsp),%rax
mov    (%rax),%esi
lea    0xeb4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    (%rsp),%rax
mov    (%rax),%esi
lea    0xea9(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    (%rsp),%rax
mov    (%rax),%esi
lea    0xea0(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    (%rsp),%rax
mov    (%rax),%esi
lea    0xe97(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [7 x i8] c"i: %d\0A\00"
@.str.1 = [10 x i8] c"ip: 0x%x\0A\00"
@.str.2 = [11 x i8] c"ipp: 0x%x\0A\00"
@.str.3 = [9 x i8] c"*ip: %d\0A\00"
@.str.4 = [11 x i8] c"**ipp: %d\0A\00"
@.str.5 = [11 x i8] c"ip[0]: %d\0A\00"
@.str.6 = [15 x i8] c"ipp[0][0]: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32*
%4 = alloca i32**
store i32 0, i32* %1
store i32 2, i32* %2
store i32* %2, i32** %3
store i32** %3, i32*** %4
%5 = load i32, i32* %2
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %5)
%7 = load i32*, i32** %3
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0), i32* %7)
%9 = load i32**, i32*** %4
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32** %9)
%11 = load i32*, i32** %3
%12 = load i32, i32* %11
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i32 %12)
%14 = load i32**, i32*** %4
%15 = load i32*, i32** %14
%16 = load i32, i32* %15
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.4, i64 0, i64 0), i32 %16)
%18 = load i32*, i32** %3
%19 = getelementptr inbounds i32, i32* %18, i64 0
%20 = load i32, i32* %19
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.5, i64 0, i64 0), i32 %20)
%22 = load i32**, i32*** %4
%23 = getelementptr inbounds i32*, i32** %22, i64 0
%24 = load i32*, i32** %23
%25 = getelementptr inbounds i32, i32* %24, i64 0
%26 = load i32, i32* %25
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.6, i64 0, i64 0), i32 %26)
ret i32 0
}

LLVM IR (-O2):
@.str = [7 x i8] c"i: %d\0A\00"
@.str.1 = [10 x i8] c"ip: 0x%x\0A\00"
@.str.2 = [11 x i8] c"ipp: 0x%x\0A\00"
@.str.3 = [9 x i8] c"*ip: %d\0A\00"
@.str.4 = [11 x i8] c"**ipp: %d\0A\00"
@.str.5 = [11 x i8] c"ip[0]: %d\0A\00"
@.str.6 = [15 x i8] c"ipp[0][0]: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32*
%3 = bitcast i32* %1 to i8*
store i32 2, i32* %1
%4 = bitcast i32** %2 to i8*
store i32* %1, i32** %2
%5 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 2)
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32** %2)
%8 = load i32*, i32** %2
%9 = load i32, i32* %8
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0), i32 %9)
%11 = load i32*, i32** %2
%12 = load i32, i32* %11
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.4, i64 0, i64 0), i32 %12)
%14 = load i32*, i32** %2
%15 = load i32, i32* %14
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.5, i64 0, i64 0), i32 %15)
%17 = load i32*, i32** %2
%18 = load i32, i32* %17
%19 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.6, i64 0, i64 0), i32 %18)
ret i32 0
}