• clemensh's avatar
    [wasm] Add JSToWasmWrapperCache to reuse generated wrapper code · 7a91e3c6
    clemensh authored
    The generated code for JSToWasm wrappers only depends on the signature
    of the exported function. Hence, we can reuse the generated code and
    just patch the reference to the called wasm code.
    
    For the unity-wasm benchmark, we reach a hit rate of 98.07% for this
    cache, and only 395 instead of 20471 wrappers are compiled. This brings
    down instantiation time from 2.9s to 1.6s on a MBP.
    
    R=titzer@chromium.org
    
    Review-Url: https://codereview.chromium.org/2705993002
    Cr-Commit-Position: refs/heads/master@{#43322}
    7a91e3c6
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