Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

matt godbolt @mattgodbolt@hachyderm.io

12/10/2025, 12:36:20 PM

Public

Day 10 of Advent of Compiler Optimisations!

A simple loop summing 8 values — but tell the compiler the count is fixed at compile time and watch what happens. The code transforms in surprising ways. What does "unrolling" actually look like in assembly, and when does the compiler decide it's worth it? Try changing the count and see how the strategy changes!

#AoCO2025

Unrolling loops — Matt Godbolt’s blog

Learning when the compiler decides to unroll loops for performance

xania.org

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