Rollup of 12 pull requests#151794

Merged

rust-bors[bot] merged 36 commits into

rust-lang:mainfrom

JonathanBrouwer:rollup-rGbYGX2

Jan 29, 2026

Commits on Jan 7, 2026

Avoid `unsafe fn` in remaining x86 tests
eduardosm
committed

Commits on Jan 11, 2026

compiler-builtins: Remove the no-f16-f128 feature
tgross35
committed

Commits on Jan 13, 2026

Creates README for stdarch-gen-arm
CrooseGit
committed

Commits on Jan 25, 2026

Bump `std`'s `backtrace`'s `rustc-demangle`
fmease
committed

Commits on Jan 27, 2026

Commits on Jan 28, 2026