Patrick Hein bagbag

Dead Code Elimination (DCE) Isn't Perfect (or happens late):
- Ideal Scenario: You'd expect the compiler's DCE pass to recognize that the Deserialize implementations generated by the derive macro are never called and completely eliminate them from the final binary anyway. If DCE worked perfectly and early, removing the derive manually shouldn't change the size much, as the code was already being discarded.
- Reality: The analysis for DCE, especially across crates and with complex features like generics and macros (which serde uses heavily), can be intricate. Sometimes, code might appear reachable during earlier compilation stages or might have subtle linkages that prevent easy removal until LTO.
The Butterfly Effect of Optimization Heuristics:
- Compilers use complex heuristics to decide how to optimize code: when to inline functions, how to allocate registers, how to arrange code blocks for cache efficiency, etc.

	use core::{
	fmt::{self, Write},
	str::FromStr,
	};
	use embassy_embedded_hal::shared_bus::asynch::spi::SpiDevice;
	use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, channel::Channel};
	use embassy_time::{Delay, Duration, Instant};
	use embedded_graphics::{
	Drawable,
	mono_font::{MonoFont, MonoTextStyle, iso_8859_1::FONT_10X20},

	use core::sync::atomic::{AtomicU32, Ordering};
	use defmt::trace;
	use embassy_sync::{
	blocking_mutex::{CriticalSectionMutex, raw::CriticalSectionRawMutex},
	signal::Signal,
	};
	use embassy_time::{Duration, Instant};
	use heapless::Vec;

	// type PendingTasksMap = FnvIndexMap<u32, TaskInstant, 16>;

	use embassy_futures::select::{Either, select, select_array};
	use embassy_time::Timer;
	use esp_hal::{
	gpio::{Input, InputConfig, InputPin, Pull},
	peripheral::Peripheral,
	};

	const STATE_A: u8 = 0b1000;
	const STATE_AB: u8 = 0b1100;
	const STATE_B: u8 = 0b0100;

	(<any>Symbol).asyncIterator = Symbol.asyncIterator \|\| Symbol.for("Symbol.asyncIterator");
	const sleep = async (ms: number) => new Promise((resolve, reject) => setTimeout(() => resolve(), ms));

	class TestClass {
	private awaitable = Promise.resolve([1, 2, 3, 4, 5]);

	async *count(count: number): AsyncIterableIterator<number> {
	for (let i = 0; i < count; i++) {
	yield* (async function* () {
	await sleep(100);

	<!doctype html>
	<html>

	<head>
	<meta charset="utf-8">
	<title>MediathekViewWeb API</title>

	<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
	</head>