Wasmtime GitHub notifications bot (Aug 19 2024 at 21:42): Wasmtime GitHub notifications bot (Aug 19 2024 at 21:42):alexcrichton opened PR #9144 from alexcrichton:x64-fix-fmin-fmax-with-load to bytecodealliance:main:
This commit fixes an issue where a
Valuewas both load-sunk and used as-is, meaning it was both sunk and not. That triggered a panic in the backend since this isn't valid. The reason for this is due to how some ISLE rules were written where aValuewas both implicitly coerced into anXmmMemand anXmm. This issue is similar to #4815 for example. The fix in this commit is to force the operands into registers which prevents load sinking which wouldn't work here anyway.This panic was introduced in #5841 which is quite old at this point. This bug does not affect WebAssembly translation due to how the
v128type maps toi8x16in Cranelift by default.Closes #9143
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Wasmtime GitHub notifications bot (Aug 19 2024 at 21:42):alexcrichton requested elliottt for a review on PR #9144.
Wasmtime GitHub notifications bot (Aug 19 2024 at 21:42):alexcrichton requested wasmtime-compiler-reviewers for a review on PR #9144.
Wasmtime GitHub notifications bot (Aug 19 2024 at 21:43):fitzgen submitted PR review.
Wasmtime GitHub notifications bot (Aug 19 2024 at 21:44):fitzgen has enabled auto merge for PR #9144.
Wasmtime GitHub notifications bot (Aug 19 2024 at 22:06):fitzgen merged PR #9144.
Last updated: Dec 13 2025 at 21:03 UTC