Re: [PATCH RFC v2 4/7] rust: implement a test balloon via the "varint" subsystem

From: Junio C Hamano <gitster@pobox.com>
Date: Sep 5, 2025, 22:39 UTC
Message-ID: <xmqqqzwk1q3z.fsf@gitster.g>
In-Reply-To: <xmqqy0qs1sk5.fsf@gitster.g>

Junio C Hamano <gitster@pobox.com> writes:

> ...  Interestingly, disassembly I saw looked a lot more
> optimized than the C variant compiled with clang-19 -O2.

That was a false alarm. With right compilation option passed, C version of decode_varint() compiled to identical assembly as what rustc/llvm produced.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.