[PATCH]: Kill REG_SAVE_AREA

[Joseph S. Myers]

SETJMP_VIA_SAVE_AREA is an undocumented target macro.  As you're making 
changes in that area and so presumably understand what it does, any chance 
of documenting it?

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
    jsm@polyomino.org.uk (personal mail)
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