Hacker News with Generative AI: Clang

A Clang regression related to switch statements and inlining (nicula.xyz)
After my previous post, Eliminating redundant bound checks (read it for context if you haven’t already), I wanted to do a benchmark using the ‘optimized’ version of the increment() function, which didn’t contain any bound checks when compiled with Clang, even though we used .at() for indexing into the array.

Clang, Optimization, Benchmarking, Software Development

10 points by nicula 2 days ago | 0 comments

Rules to avoid common extended inline assembly mistakes (nullprogram.com)
GCC and Clang inline assembly is an interface between high and low level programming languages. It is subtle and treacherous. Many are ensnared in its traps, usually unknowingly. As such, the asm keyword is essentially the unsafe keyword of C and C++. Nearly every inline assembly tutorial, including the awful ibilio page at the top of search engines for decades, propagate fundamental, serious mistakes, and most examples are incorrect. The dangerous part is that the examples usually produce the expected results!

Programming, Assembly Language, GCC, Clang, Software Engineering

79 points by ingve 63 days ago | 19 comments

Bear is a tool that generates a compilation database for Clang tooling (github.com/rizsotto)
Bear is a tool that generates a compilation database for clang tooling.

Software, Compilation, Clang, Tools, GitHub

47 points by nateb2022 136 days ago | 22 comments

Notes/Primer on Clang Compiler Front End (1): Introduction and Architecture (youssefaa.com)

Clang, Compilers, Programming, Software Development

39 points by joeamroo 173 days ago | 0 comments

Better Firmware with LLVM/Clang (2020) (memfault.com)

Firmware, LLVM, Clang

74 points by signa11 210 days ago | 6 comments

OpenBSD – Clang -fret-clean: cleaning return addresses off stack (by deraadt) (undeadly.org)