[Wasm R2R] Allow LDVIRTFTN call sigs to carry a type arg (MD array methods)#129064
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AndyAyersMS merged 1 commit intoJun 8, 2026
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…thods) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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@davidwrighton PTAL Fixes some more pri-0 test issues (case 3 here: #128234 (comment)) |
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Pull request overview
This PR adjusts a debug-only invariant in the ReadyToRun JIT interface to account for WebAssembly’s virtual-call lowering behavior: Wasm forces virtual calls down the LDVIRTFTN path (since stub dispatch is unsupported), and those call signatures can legitimately include a hidden type parameter (e.g., for MD-array intrinsic handling).
Changes:
- Relax
Debug.Assertin theCORINFO_VIRTUALCALL_LDVIRTFTNhandling to allowsig.hasTypeArg()on Wasm targets. - Add clarifying comments explaining why Wasm is allowed to carry a type arg and where
instParamLookupis established.
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We might be able to avoid this in the JIT, or scope the relaxed assert more tightly to MD array methods... |
BrzVlad
approved these changes
Jun 8, 2026
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