• Damien George's avatar
    py/parse: Improve constant folding to operate on small and big ints. · 22b22650
    Damien George authored
    Constant folding in the parser can now operate on big ints, whatever
    their representation.  This is now possible because the parser can create
    parse nodes holding arbitrary objects.  For the case of small ints the
    folding is still efficient in RAM because the folded small int is stored
    inplace in the parse node.
    Adds 48 bytes to code size on Thumb2 architecture.  Helps reduce heap
    usage because more constants can be computed at compile time, leading to
    a smaller parse tree, and most importantly means that the constants don't
    have to be computed at runtime (perhaps more than once).  Parser will now
    be a little slower when folding due to calls to runtime to do the