Upgrade to LLVM 14 LLVM patch state: * [x] a55727f334 Backported. * [x] c3c82dc124 Backported as 917c47b3bf. * [x] 6e8f9ab632 No plan to upstream. * [x] 319f4b2d52 Backported. * [x] 8b2c25d321 No plan to upstream. * [x] 75fef2efd4 No plan to upstream. * [ ] adef757547 Upstreamed as 2d2ef384b2. Needs backport. * [x] 4b7c1b4910 No plan to upstream. * [x] 3f5ab0c061 No plan to upstream. * [x] 514d05500e No plan to upstream. * [ ] 54c5869585 Under review at https://reviews.llvm.org/D119695 and https://reviews.llvm.org/D119856. Release timeline: * LLVM 14.0.0 final planned for Mar 15. * Rust 1.60.0 planned for Apr 7. Compile-time: * https://perf.rust-lang.org/compare.html?start=250384edc5d78533e993f38c60d64e42b21684b2&end=b87df8d2c7c5d9ac448c585de10927ab2ee1b864 * A slight improvement on average, though no big changes either way. * There are some larger max-rss improvements. r? `@ghost`
a55727f334
c3c82dc124
917c47b3bf
6e8f9ab632
319f4b2d52
8b2c25d321
75fef2efd4
adef757547
2d2ef384b2
4b7c1b4910
3f5ab0c061
514d05500e
54c5869585