89ef64c490
The matcher path (generic builders, hand-built, decode->re-encode) resolves an instruction to its encoding form by linearly scanning the forms for its mnemonic and operand-matching each -- the dominant cost on that path. Memoize it: pack (mnemonic, per-operand shape) into a key (immediates folded to the smallest size class they fit, matching imm_matches_inline) and cache key -> form so a repeated instruction shape skips the scan. Direct-mapped, fixed 8192-slot table (64 KB, no allocation). Each slot packs the full 48-bit key and form index into one u64, read/written with relaxed atomics, so concurrent encode() stays safe -- a reader sees a matching key or rescans, never a torn entry. The scan stays the source of truth (a miss runs it and records the result), so the cache is exact. Lookup + scan live in a non-inlined find_form() so they don't bloat encode()'s hot loop and slow the hint path that shares it. (Routing the matcher path through the recipe emit was tried and dropped: it costs the hint path ~1.2-1.5 ns however isolated -- the hot loop is too codegen-sensitive -- while the cache alone is free for the hint path.) Realistic generic-builder mix: matcher ~52 -> ~35 ns/inst (~1.49x); hint path unchanged. Byte-exact across 2282 + idempotent.
The Data-Oriented Language for Sane Software Development.
The Odin Programming Language
Odin is a general-purpose programming language with distinct typing, built for high performance, modern systems, and built-in data-oriented data types. The Odin Programming Language, the C alternative for the joy of programming.
Website: https://odin-lang.org/
package main
import "core:fmt"
main :: proc() {
program := "+ + * 😃 - /"
accumulator := 0
for token in program {
switch token {
case '+': accumulator += 1
case '-': accumulator -= 1
case '*': accumulator *= 2
case '/': accumulator /= 2
case '😃': accumulator *= accumulator
case: // Ignore everything else
}
}
fmt.printf("The program \"%s\" calculates the value %d\n",
program, accumulator)
}
Documentation
Getting Started
Instructions for downloading and installing the Odin compiler and libraries.
Nightly Builds
Get the latest nightly builds of Odin.
Learning Odin
Overview of Odin
An overview of the Odin programming language.
Frequently Asked Questions (FAQ)
Answers to common questions about Odin.
Packages
Documentation for all the official packages part of the core and vendor library collections.
Examples
Examples on how to write idiomatic Odin code. Shows how to accomplish specific tasks in Odin, as well as how to use packages from core and vendor.
Odin Documentation
Documentation for the Odin language itself.
Odin Discord
Get live support and talk with other Odin programmers on the Odin Discord.
Articles
The Odin Blog
The official blog of the Odin programming language, featuring announcements, news, and in-depth articles by the Odin team and guests.
Warnings
- The Odin compiler is still in development.