Rollup of 10 pull requests#141606

Closed

jieyouxu wants to merge 21 commits intorust-lang:masterfrom

jieyouxu:rollup-0guwwz3

Commits on May 24, 2025

intrinsics: reduce references to LLVM and update notes on where the implementations live
RalfJung
committed
ScalarInt: support conversion with signed int types and cmp::Ordering
RalfJung
committed

Commits on May 25, 2025

Commits on May 26, 2025