• ager@chromium.org's avatar
    Fix reintroduction of global variables that have been deleted. · dc61921b
    ager@chromium.org authored
    Deletion of global properties puts 'the hole' in the global property
    cell and updates the property details in the property dictionary with
    the information that the property has been deleted. When setting
    global properties that have been deleted in generated code we just
    store the new value in the global property cell. This does not update
    the property details in the property dictionary. Therefore, it looks
    like the property is not there eventhough it was just reintroduced.
    
    Perform 'the hole' checks in generated code for global property stores
    and bail out of ICs and optimized code if storing to a property cell
    that contains 'the hole'.
    
    Review URL: http://codereview.chromium.org/6306014
    
    git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6508 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
    dc61921b
stub-cache-x64.cc 119 KB