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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
The rewriting rules in Figure 8.1 are a subset of the rules necessary to eliminate all ESEQs from expressions. Show the right-hand side for each of the following incomplete rules:
a. MOVE(TEMP t, ESEQ(s, e)) ⇒
b. MOVE(MEM(ESEQ(s, e1)), e2) ⇒
c. MOVE(MEM(e1), ESEQ(s, e2)) ⇒
d. EXP(ESEQ(s, e)) ⇒
e. EXP(CALL(ESEQ(s, e), args)) ⇒
f.  MOVE(TEMP t, CALL(ESEQ(s, e), args)) ⇒
g. EXP(CALL(e1, [e2, ESEQ(s, e3), e4])) ⇒
In some cases, you may need two different right-hand sides depending on whether something commutes (just as parts (3) and (4) of Figure 8.1 have differ- ent right-hand sides for the same left-hand sides).
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