ELI5: Explain Like I'm 5

Binary optimizer

Imagine you have a bunch of blocks, each one either red or blue. Let's say you have 20 of these blocks in total. Now, you want to figure out the best way to arrange these blocks so that you can stack them up as high as possible.

But stacking these blocks randomly might not give you the best result; you might end up with a wobbly tower that falls over easily. So you decide to create some rules for how these blocks should be arranged. Maybe you decide that you should stack all the red blocks first, and then the blue ones on top. Or perhaps you decide that you should alternate between red and blue blocks.

These rules for arranging the blocks are kind of like what a binary optimizer does. In computer programming, a binary optimizer is a tool that tries to figure out the best way to arrange the instructions in a program so that it runs faster or uses less memory.

When you write a program, you write it in a language that humans can understand, like C++ or Java. But when a computer runs a program, it translates it into a series of instructions that it can understand. These instructions are called machine code, and they are usually represented as binary code, which consists of 1s and 0s.

The binary optimizer tries to rearrange these instructions in a way that makes the program run more efficiently. It might look for redundancies, or instructions that can be combined, or instructions that can be reordered.

For example, let's say you write a program that calculates the sum of two numbers:

```
1. mov ax, 10
2. mov bx, 20
3. add ax, bx
4. mov cx, ax
```

The binary optimizer might rearrange these instructions like this:

```
1. mov ax, 10
2. mov bx, 20
3. add bx, ax
4. mov cx, bx
```

In the second version, the `add` instruction has been reordered to make it more efficient. Instead of adding `ax` and `bx`, it now adds `bx` and `ax`. This might not seem like a big difference, but it can actually make a significant impact on the program's performance.

So, to sum it up, a binary optimizer is like a person who tries to figure out the best way to stack up a bunch of blocks so that they don't fall over easily. In programming, it rearranges the instructions in a program so that it runs more efficiently.
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