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Brendan Punsky 266e436c0c rexcode/arm64: the SVE element-count family, and INCP's predicate field
The merge brought in the SQINCP/UQINCP/INCP/DECP family reading its
predicate from bits 20:16, where the architecture has it at 8:5, so
every one of them encoded a different register than it named. Their
predicate also carries an element size -- from the form's Z operand
where it has one, and from bits 23:22 for the scalar destinations.

SVE writes an element count as a pattern by name and a multiplier as
`mul #N`: `cntb x0, pow2, mul #1`. The pattern printed as a bare number
and the multiplier did not print at all -- IMM_MUL4 had an encoder but
no decoder, so it came back as an empty operand and left a trailing
comma. That covers 64 and 62 forms respectively.

CNTP's source predicate, and eight more the merge added, wanted the same
element sizes as the rest of that family.

SVE/SME2 against llvm-mc: 663 byte-exact and 0 mismatched, from 450 and
18 when the merge landed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018UmHLRF11EoWwNWCJ7JGaA
2026-08-28 19:19:53 -04:00
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2018-12-27 10:51:15 +00:00
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Odin logo
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

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Instructions for downloading and installing the Odin compiler and libraries.

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Overview of Odin

An overview of the Odin programming language.

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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.
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