bors 710ce90fbe Auto merge of #128250 - Amanieu:select_unpredictable, r=nikic
Add `select_unpredictable` to force LLVM to use CMOV

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`.
2024-07-30 03:22:27 +00:00
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