• Mythri's avatar
    [Interpreter] Refactor arithmetic bytecode handlers. · 18d05c87
    Mythri authored
    The Smi versions of arithmetic bytecodes (AddSmi, SubSmi, MulSmi,
    DivSmi, ModSmi) have a fast path for Smi case and call to a builtin
    on the slow path. However, this builtin is only used by these bytecode
    handlers. This cl removes the builtins and inlines them into
    bytecode handlers. This will also save few checks in the slow-path.
    
    Subtract, multiply, divide and modulus also share the same checks to 
    collect type feedback on several cases. This cl also refactors them
    to share the same code.
    
    Also removed a couple of TODOs that are no longer relevant.
    
    Bug: v8:4280, v8:6474
    Change-Id: Id23bd61c2074564a1beacb0632165f52370ff226
    Reviewed-on: https://chromium-review.googlesource.com/530845
    Commit-Queue: Mythri Alle <mythria@chromium.org>
    Reviewed-by: 's avatarIgor Sheludko <ishell@chromium.org>
    Reviewed-by: 's avatarLeszek Swirski <leszeks@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#45982}
    18d05c87
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