• jgruber's avatar
    [ia32] Unalias kRootRegister in ApiCallback,InterpreterPushArgsThenCall · fdb31302
    jgruber authored
    In preparation for kRootRegister support on ia32.
    
    For both descriptors we simply shuffle registers around to remove ebx
    from the calling convention.
    
    Possible follow-up work: The ApiCallbackDescriptor could be simplified
    by passing call_data (and the Undefined constant) on the stack. This
    currently happens in the builtin body.
    
    Drive-by: Minor refactoring in InterpreterPushArgsMode to deobfuscate
    the different paths (spread/no-spread). Also use
    {Push,Pop}ReturnAddress helpers.
    
    Bug: v8:6666
    Change-Id: I25fd738501fff71c038a0745cec04363f90df660
    Reviewed-on: https://chromium-review.googlesource.com/1196552Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
    Commit-Queue: Jakob Gruber <jgruber@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#55554}
    fdb31302
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