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JIT: preserve unused Swift error results - #137526
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Fixes dotnet#136523 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: dfb97b66-e90e-4673-a5ce-6fbdf442c56d
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@dotnet/jit-contrib PTAL Simple fix |
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Preserve
GT_SWIFT_ERRORduring dead-store side-effect extraction so lowering and LSRA can still find the result when it is unused. Add P/Invoke and function-pointer regressions.Validated on macOS arm64: Checked build and Swift error suite under JIT and NativeAOT passed. The ReadyToRun repro asserts before the fix and compiles afterward. SuperPMI: 446,262 contexts, no diffs or misses.
Resolves #136523
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This PR description was generated with GitHub Copilot.