Wasmtime GitHub notifications bot (Jul 06 2026 at 19:35): Wasmtime GitHub notifications bot (Jul 06 2026 at 19:35):saulecabrera requested wasmtime-compiler-reviewers for a review on PR #13829.
Wasmtime GitHub notifications bot (Jul 06 2026 at 19:37):saulecabrera requested wasmtime-core-reviewers for a review on PR #13829.
Wasmtime GitHub notifications bot (Jul 06 2026 at 19:44):saulecabrera requested fitzgen for a review on PR #13829.
Wasmtime GitHub notifications bot (Jul 06 2026 at 19:45):saulecabrera opened PR #13829 from saulecabrera:winch-fix-clz-ctz to bytecodealliance:main:
Fixes https://github.com/bytecodealliance/wasmtime/issues/13746
Optimizes the fallback sequence emitted in clz/ctz for the x64 backend, emitting a conditional move to ensure that the destination register is always defined when the source register is zero.
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Wasmtime GitHub notifications bot (Jul 06 2026 at 20:01)::thumbs_up: fitzgen submitted PR review:
Thanks!
Wasmtime GitHub notifications bot (Jul 06 2026 at 20:01):fitzgen added PR #13829 winch(x64): Avoid undefined behavior on ctz/clz to the merge queue.
Wasmtime GitHub notifications bot (Jul 06 2026 at 20:26)::check: fitzgen merged PR #13829.
Wasmtime GitHub notifications bot (Jul 06 2026 at 20:26):fitzgen removed PR #13829 winch(x64): Avoid undefined behavior on ctz/clz from the merge queue.
Last updated: Jul 29 2026 at 05:03 UTC