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OK. If the Ada folks want to enable SFTs then they should find a new GV threshold. But I think the real solution will come when we redesign how we deal with call-clobbers.I've simply disabled SFT's for ada for now, through making it a flag and making the ada frontend set the flag to 0.
This is because it looks like the threshold would have to be a *lot* lower than it is now (it's currently half a million, and i'd probably have to set it to 10000 or less), and that seems more significant a change to the patch than simply not enabling it for Ada for now.
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