#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 operation2(int, int, int, int);
int operation3(int);
int decrypt(int number) {
  int one, two, three, four;
  int result;
  four = operation3(number % 10);
  number /= 10;
  three = operation3(number % 10);
  number /= 10;
  two = operation3(number % 10);
  number /= 10;
  one = operation3(number % 10);
  result = operation2(one, two, three, four);
  return result;
}


x86 assembly (clang, -O0):
<decrypt>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,%edi
call   1030 <operation3@plt>
mov    %eax,-0x14(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,%edi
call   1030 <operation3@plt>
mov    %eax,-0x10(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,%edi
call   1030 <operation3@plt>
mov    %eax,-0xc(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,%edi
call   1030 <operation3@plt>
mov    %eax,-0x8(%rbp)
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
mov    -0x10(%rbp),%edx
mov    -0x14(%rbp),%ecx
call   1040 <operation2@plt>
mov    %eax,-0x18(%rbp)
mov    -0x18(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<decrypt>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
movslq %edi,%rbp
imul   $0x66666667,%rbp,%rbx
mov    %rbx,%rax
shr    $0x3f,%rax
sar    $0x22,%rbx
add    %eax,%ebx
lea    (%rbx,%rbx,1),%eax
lea    (%rax,%rax,4),%eax
mov    %ebp,%edi
sub    %eax,%edi
call   1030 <operation3@plt>
mov    %eax,%r14d
movslq %ebx,%rdi
imul   $0x66666667,%rdi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x22,%rax
add    %ecx,%eax
add    %eax,%eax
lea    (%rax,%rax,4),%eax
sub    %eax,%edi
call   1030 <operation3@plt>
mov    %eax,%r15d
imul   $0x51eb851f,%rbp,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x25,%rax
add    %ecx,%eax
movslq %eax,%rdi
imul   $0x66666667,%rdi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x22,%rax
add    %ecx,%eax
add    %eax,%eax
lea    (%rax,%rax,4),%eax
sub    %eax,%edi
call   1030 <operation3@plt>
mov    %eax,%ebx
imul   $0x10624dd3,%rbp,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x26,%rax
add    %ecx,%eax
movslq %eax,%rdi
imul   $0x66666667,%rdi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x22,%rax
add    %ecx,%eax
add    %eax,%eax
lea    (%rax,%rax,4),%eax
sub    %eax,%edi
call   1030 <operation3@plt>
mov    %eax,%edi
mov    %ebx,%esi
mov    %r15d,%edx
mov    %r14d,%ecx
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
jmp    1040 <operation2@plt>

LLVM IR (-O0):
define i32 @decrypt(i32 %0) {
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
store i32 %0, i32* %2
%8 = load i32, i32* %2
%9 = srem i32 %8, 10
%10 = call i32 @operation3(i32 %9)
store i32 %10, i32* %6
%11 = load i32, i32* %2
%12 = sdiv i32 %11, 10
store i32 %12, i32* %2
%13 = load i32, i32* %2
%14 = srem i32 %13, 10
%15 = call i32 @operation3(i32 %14)
store i32 %15, i32* %5
%16 = load i32, i32* %2
%17 = sdiv i32 %16, 10
store i32 %17, i32* %2
%18 = load i32, i32* %2
%19 = srem i32 %18, 10
%20 = call i32 @operation3(i32 %19)
store i32 %20, i32* %4
%21 = load i32, i32* %2
%22 = sdiv i32 %21, 10
store i32 %22, i32* %2
%23 = load i32, i32* %2
%24 = srem i32 %23, 10
%25 = call i32 @operation3(i32 %24)
store i32 %25, i32* %3
%26 = load i32, i32* %3
%27 = load i32, i32* %4
%28 = load i32, i32* %5
%29 = load i32, i32* %6
%30 = call i32 @operation2(i32 %26, i32 %27, i32 %28, i32 %29)
store i32 %30, i32* %7
%31 = load i32, i32* %7
ret i32 %31
}

LLVM IR (-O2):
define i32 @decrypt(i32 %0) {
%2 = srem i32 %0, 10
%3 = tail call i32 @operation3(i32 %2)
%4 = sdiv i32 %0, 10
%5 = srem i32 %4, 10
%6 = tail call i32 @operation3(i32 %5)
%7 = sdiv i32 %0, 100
%8 = srem i32 %7, 10
%9 = tail call i32 @operation3(i32 %8)
%10 = sdiv i32 %0, 1000
%11 = srem i32 %10, 10
%12 = tail call i32 @operation3(i32 %11)
%13 = tail call i32 @operation2(i32 %12, i32 %9, i32 %6, i32 %3)
ret i32 %13
}