Report bad code when localloc is in a funclet#121113
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janvorli merged 1 commit intodotnet:mainfrom Oct 28, 2025
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The interpreter didn't check that localloc is not valid in funclets. Couple of coreclr tests were failing due to that. To make this work properly, I've removed marking blocks with BBClauseTry as it was not used for anything and preventing the check for code being in funclet working properly.
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Pull Request Overview
This PR adds validation to prevent localloc instructions inside funclets (exception handlers) in the interpreter, which is not supported. The change fixes failing CoreCLR tests by properly detecting when code is executing within a funclet context.
Key Changes:
- Removed unused
BBClauseTryenum value that was preventing proper funclet detection - Added validation check to reject
locallocinstructions inside funclets with appropriate error message
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| src/coreclr/interpreter/compiler.h | Removes unused BBClauseTry enum value from InterpBBClauseType |
| src/coreclr/interpreter/compiler.cpp | Removes code that marked try blocks and adds validation to reject localloc in funclets |
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Tagging subscribers to this area: @BrzVlad, @janvorli, @kg |
kg
approved these changes
Oct 27, 2025
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/ba-g the windows arm64 infra is down and there change is doesn't have anything arm64 specific. |
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The interpreter didn't check that localloc is not valid in funclets. Couple of coreclr tests were failing due to that.
To make this work properly, I've removed marking blocks with BBClauseTry as it was not used for anything and preventing the check for code being in funclet working properly.