[clr-interp] Cause compilation to be skipped when using function only used by tail-call helper#123508
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davidwrighton merged 3 commits intodotnet:mainfrom Jan 30, 2026
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… used by tail-call helper
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Pull request overview
This pull request adds support for skipping interpreter compilation when encountering the NextCallReturnAddress intrinsic that is not followed by a POP instruction. This intrinsic is used in tail-call helper functions which are currently only supported by the JIT, not the interpreter.
Changes:
- Introduces a new
SKIPCODEerror handling function that throwsCORJIT_SKIPPEDexception to skip compilation - Adds handling for
NI_System_StubHelpers_NextCallReturnAddressinEmitNamedIntrinsicCallto skip compilation when the intrinsic is not followed by POP
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| src/coreclr/interpreter/failures.h | Added declaration for new SKIPCODE function |
| src/coreclr/interpreter/eeinterp.cpp | Implemented SKIPCODE function that throws CORJIT_SKIPPED exception |
| src/coreclr/interpreter/compiler.cpp | Added case handler for NextCallReturnAddress intrinsic to skip compilation when not followed by POP |
This was referenced Jan 27, 2026
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/ba-g known infra issues |
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The NextCallReturnAddress intrinsic is only actually used in a case inside of the tail-call helper function, and in some of our interp modes we occasionally try to interpreter this tail-call helper. Instead of allowing that to happen, just skip the compilation.