Amanieu d'Antras
72b110ada3
Stabilize select_unpredictable
...
FCP completed in tracking issue #133962 .
2025-05-01 13:49:28 +01:00
Amanieu d'Antras
5d90ccb0fa
Move select_unpredictable to the hint module
2025-04-13 01:34:25 +01:00
Jubilee Young
3c0c9b6770
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
Trevor Gross
74d2d4bfa4
Expand the select_unpredictable test for ZSTs
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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
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[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
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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
