Stream: git-wasmtime

Topic: wasmtime / PR #4496 x64: Shrink Inst size from 72 to 40 b...

Wasmtime GitHub notifications bot (Jul 20 2022 at 23:49):

elliottt opened PR #4496 from trevor/x64-inst-size to main:

• Box SyntheticAmode
• Box label vectors
• Switch VecMachLabel to a smallvec of 16 elements
• x64 instructions are now 40 bytes

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Wasmtime GitHub notifications bot (Jul 21 2022 at 05:16):

elliottt edited PR #4496 from trevor/x64-inst-size to main:

Experimenting with shrinking down the size of Instr for the x64 backend. The current state of this PR is that it shrinks the size of Instr to 40 bytes, but costs some compile performance as it puts every SyntheticAmode behind a box. This isn't really acceptable, so I'm going to investigate a new representation for SyntheticAmode that doesn't require 20 bytes.
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Last updated: Dec 23 2024 at 12:05 UTC