• Ng Zhi An's avatar
    [wasm-simd][liftoff] Support SIMD locals · ba14c2f3
    Ng Zhi An authored
    Add kWasmS128 to the list of supported types, and implement Fill for all
    the architectures so that LocalGet works.
    
    Add a new test file to contain tests that run only on Liftoff, and
    assert that the code is indeed compiled by Liftoff.
    We cannot rely on the nooptimization variant for testing
    because by default, if Liftoff compilation fails, it will fall back to
    Turbofan, and we accidentally get a test passing.
    
    We skip these tests on mips architecture that don't support SIMD, since
    there is no way to implement these, and we don't have a "lowering" phase
    for Liftoff.
    
    As we implement more of SIMD in Liftoff, we can add more
    tests to this file and ensure correctness. Future patches will introduce
    support for globals and params.
    
    Bug: v8:9909
    Change-Id: I7fc911f2d588d60c709ddb258b2efc1f22805fab
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1999470
    Commit-Queue: Zhi An Ng <zhin@chromium.org>
    Reviewed-by: 's avatarClemens Backes <clemensb@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#65768}
    ba14c2f3
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