Stream: git-wasmtime

Topic: wasmtime / PR #15102 Cranelift: opt: faster e-graph contr...

view this post on Zulip Wasmtime GitHub notifications bot (Oct 31 2026 at 04:16):

avanhatt opened PR #15102 from avanhatt:isle-ctrl-lookup to bytecodealliance:main:

are-we-fast-yet identified a +0.68% instructions retired compilation regression on Sightglass from #15052.

This PR attempts to gain some cycles back by (1) inlining, and (2) using an existing requires_typevar_operand helper to avoid a more expensive lookup in the common case.

Roughly cuts in half the compile-time cost from #15052 (geomean instructions retired from +0.65% to +0.39% relative to before #15052 on macOS aarch64).

CC @fitzgen

view this post on Zulip Wasmtime GitHub notifications bot (Oct 31 2026 at 04:16):

avanhatt removed the review request for wasmtime-compiler-reviewers from PR #15102.

view this post on Zulip Wasmtime GitHub notifications bot (Oct 31 2026 at 04:16):

avanhatt requested alexcrichton for a review on PR #15102.

view this post on Zulip Wasmtime GitHub notifications bot (Oct 31 2026 at 04:16):

avanhatt requested wasmtime-compiler-reviewers for a review on PR #15102.

view this post on Zulip Wasmtime GitHub notifications bot (Oct 31 2026 at 05:44):

github-actions[bot] added the label cranelift on PR #15102.

Last updated: Oct 31 2026 at 23:03 UTC