rust/src/test/codegen/slice-iter-len-eq-zero.rs, branch try https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=try 2023-01-11T09:32:08+00:00 Move /src/test to /tests 2023-01-11T09:32:08+00:00 Albert Larsan 74931857+albertlarsan68@users.noreply.github.com 2023-01-05T08:13:28+00:00 urn:sha1:cf2dff2b1e3fa55fa5415d524200070d0d7aacfe fix tests, update size asserts 2022-11-22T22:12:26+00:00 The 8472 git@infinite-source.de 2022-10-06T23:10:15+00:00 urn:sha1:a9128d89273be6f7b2bc58cd5b8bcd74382c7cd7 Optimize `array::IntoIter` 2022-09-20T06:24:34+00:00 Scott McMurray scottmcm@users.noreply.github.com 2022-06-04T23:23:15+00:00 urn:sha1:6dbd9a29c21db63e2c72f5e7f4f8b5ba58023875 `.into_iter()` on arrays was slower than it needed to be (especially compared to slice iterator) since it uses `Range<usize>`, which needs to handle degenerate ranges like `10..4`. This PR adds an internal `IndexRange` type that's like `Range<usize>` but with a safety invariant that means it doesn't need to worry about those cases -- it only handles `start <= end` -- and thus can give LLVM more information to optimize better. I added one simple demonstration of the improvement as a codegen test. Update some codegen tests for opaque pointers 2022-05-25T15:29:37+00:00 Nikita Popov npopov@redhat.com 2022-02-21T10:21:23+00:00 urn:sha1:4d7ff4e5096625b56f154fa485a1af9351c41b5c Help LLVM better optimize slice::Iter(Mut)::len 2019-06-16T04:15:25+00:00 Scott McMurray scottmcm@users.noreply.github.com 2019-06-16T03:54:04+00:00 urn:sha1:af0e35e6a6837aba121c873e6f91fff6df61d268