At 08:50 AM 8/2/2002 -0700, Sean O'Rourke wrote: >Without performance numbers, this is hard to test, but it can potentially >turn a single "a = b + c", which is just "add P0, P1, P2" if a, b, and c >have been referenced, into a hideous five instructions: > > fetch_lex P0, 'a' # Because how we store result depends on a's type > fetch_lex P1, 'b' > fetch_lex P2, 'c' > add P0, P1, P2 > store_lex P0, 'a'
The last instruction (store_lex) isn't needed since P0 is a pointer to the lexical. -Melvin
