3 Commits

Author	SHA1	Message	Date
Trevor Gross	74d2d4bfa4	Expand the select_unpredictable test for ZSTs ... For ZSTs there is no selection that needs to take place, so assert that no `select` statement is emitted.	2025-01-05 08:51:15 +00:00
Trevor Gross	d42c3ae02f	Merge the intrinsic and user tests for select_unpredictable ... [1] mentions that having a single test with `-Zmerge-functions=disabled` is preferable to having two separate tests. Apply that to the new `select_unpredicatble` test here. [1]: https://github.com/rust-lang/rust/pull/133964#issuecomment-2569693325	2025-01-05 01:17:07 +00:00
Amanieu d'Antras	4f78f9fbb0	Force LLVM to use CMOV for binary search ... Since https://reviews.llvm.org/D118118, LLVM will no longer turn CMOVs into branches if it comes from a `select` marked with an `unpredictable` metadata attribute. This PR introduces `core::intrinsics::select_unpredictable` which emits such a `select` and uses it in the implementation of `binary_search_by`.	2024-07-28 17:24:57 +01:00