Stream: git-wasmtime

Topic: wasmtime / PR #9176 Add ISLE rules to generate 128-bit co...

Wasmtime GitHub notifications bot (Aug 28 2024 at 14:34):

alexcrichton opened PR #9176 from alexcrichton:opt-i128-cmp to bytecodealliance:main:

This commits adds pattern-matches to detect 128-bit comparisons encoded in 64-bit comparisons and promote them to 128-bit to enable backends to apply architecture-specific optimizations to these operations.

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Wasmtime GitHub notifications bot (Aug 28 2024 at 14:34):

alexcrichton requested abrown for a review on PR #9176.

Wasmtime GitHub notifications bot (Aug 28 2024 at 14:34):

alexcrichton requested fitzgen for a review on PR #9176.

Wasmtime GitHub notifications bot (Aug 28 2024 at 14:34):

alexcrichton requested wasmtime-compiler-reviewers for a review on PR #9176.

Wasmtime GitHub notifications bot (Aug 28 2024 at 14:34):

alexcrichton requested wasmtime-core-reviewers for a review on PR #9176.

Wasmtime GitHub notifications bot (Aug 28 2024 at 17:21):

fitzgen submitted PR review.

Wasmtime GitHub notifications bot (Aug 28 2024 at 17:21):

fitzgen created PR review comment:

Can we do the same with an sextend?

Wasmtime GitHub notifications bot (Aug 28 2024 at 20:00):

alexcrichton updated PR #9176.

Wasmtime GitHub notifications bot (Aug 28 2024 at 20:01):

alexcrichton commented on PR #9176:

I've enabled sextend lifting as well now. I additionally limited this optimization to only happening for i64-to-i128-compares. While it should work for other widths current backends don't implement iconcat for two 32-bit halves to a 64-bit integer, so I was getting codegen errors on a module.

Wasmtime GitHub notifications bot (Aug 28 2024 at 20:01):

alexcrichton has enabled auto merge for PR #9176.

Wasmtime GitHub notifications bot (Aug 28 2024 at 20:27):

alexcrichton merged PR #9176.

Last updated: Oct 23 2024 at 20:03 UTC