fitzgen opened PR #8810 from fitzgen:traps-are-not-safepoints
to bytecodealliance:main
:
After https://github.com/bytecodealliance/wasmtime/pull/8809, the mutator cannot resume from a trap so we don't need to consider them safepoints, as no GC-managed references are live after the trap. The one exception being the
debugtrap
CLIF instruction, which is technically still a resumable trap, but which exists only for emitting the equivalent of anint3
breakpoint instruction for pausing in a debugger to inspect state, and should never be used for mutator-collector interactions.<!--
Please make sure you include the following information:
If this work has been discussed elsewhere, please include a link to that
conversation. If it was discussed in an issue, just mention "issue #...".Explain why this change is needed. If the details are in an issue already,
this can be brief.Our development process is documented in the Wasmtime book:
https://docs.wasmtime.dev/contributing-development-process.htmlPlease ensure all communication follows the code of conduct:
https://github.com/bytecodealliance/wasmtime/blob/main/CODE_OF_CONDUCT.md
-->
fitzgen requested cfallin for a review on PR #8810.
fitzgen requested wasmtime-compiler-reviewers for a review on PR #8810.
cfallin submitted PR review.
fitzgen merged PR #8810.
Last updated: Nov 22 2024 at 17:03 UTC