• Sigurd Schneider's avatar
    [ia32,root] Preserve kRootRegister (ebx) in enter/leave code · 07f7388b
    Sigurd Schneider authored
    This CL ensures that kRootRegister (ebx) is preserved in
    BailoutOfDeoptimized and PopArgumentsAdaptorFrame.
    
    This CL uses push/pop to preserve eax, even though it is not used in
    OPTIMIZED_FUNCTION code. If we must get more performance, we might be
    able to get rid of push/pop, but I've left it in because it is cleaner
    code this way. Another alternative is to use ecx in case of embedded
    builtins only (as it is used for speculation in the standard config).
    
    Change-Id: I437c8754408414d82b2fbd8b33d2faeda17aee30
    Bug: v8:6666
    Reviewed-on: https://chromium-review.googlesource.com/1242886
    Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
    Reviewed-by: 's avatarJaroslav Sevcik <jarin@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#56195}
    07f7388b
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