BypassReadyToRun when initializing ProbabilisticMap#115811
Merged
MihaZupan merged 3 commits intodotnet:mainfrom Jun 14, 2025
Merged
BypassReadyToRun when initializing ProbabilisticMap#115811MihaZupan merged 3 commits intodotnet:mainfrom
MihaZupan merged 3 commits intodotnet:mainfrom
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Pull Request Overview
This PR ensures that the SetCharBit and IsCharBitSet methods in ProbabilisticMap bypass ReadyToRun compilation so that intrinsic support checks remain consistent between initialization and search.
- Expanded comment explaining why these methods must bypass R2R
- Applied
[BypassReadyToRun]to bothSetCharBitandIsCharBitSet
Comments suppressed due to low confidence (1)
src/libraries/System.Private.CoreLib/src/System/SearchValues/ProbabilisticMap.cs:79
- Consider adding unit tests that simulate both intrinsic-supported and fallback code paths for SetCharBit and IsCharBitSet to verify behavior remains identical under tiered compilation and that the bypass attribute doesn't introduce inconsistencies.
[BypassReadyToRun]
davidwrighton
approved these changes
Jun 14, 2025
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Closes #89979
The set of supported intrinsics impacts how the structure is laid out in memory, so the init logic must never disagree with the search logic.