Andrew Kelley f7177fb821 InternPool: avoid indexToKey recursion for opt_payload
This is a hot function, and recursion makes it more difficult to
profile, as well as likely making it more difficult to optimize.

Previously, indexToKey for opt_payload would call getAssumeExists() on
the optional type. This made it possible to omit the optional type in
the encoding of opt_payload. However, getAssumeExists() *must* call
indexToKey because of hashing/equality.

So, this commit adds the optional type to the opt_payload encoding,
which increases its "extra" size from 0 to 8 bytes. As a result,
the opt_payload encoding went from not showing up on the top 25 largest
tags to...still not showing up in the top 25 largest tags.

This also helps make InternPool.typeOf() no longer need to call
indexToKey which is another hot function and another source of
recursion.
2023-06-10 20:47:56 -07:00
2023-06-10 20:47:54 -07:00
2023-06-10 20:47:56 -07:00
2022-12-31 18:13:00 +00:00

ZIG

A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.

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The ultimate goal of the Zig project is to serve users. As a first-order effect, this means users of the compiler, helping programmers to write better software. Even more important, however, are the end-users.

Zig is intended to be used to help end-users accomplish their goals. Zig should be used to empower end-users, never to exploit them financially, or to limit their freedom to interact with hardware or software in any way.

However, such problems are best solved with social norms, not with software licenses. Any attempt to complicate the software license of Zig would risk compromising the value Zig provides.

Therefore, Zig is available under the MIT (Expat) License, and comes with a humble request: use it to make software better serve the needs of end-users.

This project redistributes code from other projects, some of which have other licenses besides MIT. Such licenses are generally similar to the MIT license for practical purposes. See the subdirectories and files inside lib/ for more details.

Description
General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
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