George Koehler 504d2aa34e Revise stack shuffles and integer conversions in PowerPC ncg. ... Allow asp 4, exg 4 to shuffle tokens without coercing them into registers; but comment why dup 4, dup 8 coerce tokens into registers. Allow dup, dus, exg with larger sizes; and add tests dup_e.e and exg_e.e to check that dup 20, dus, exg 20 work as well in powerpc as in i80 and i86. Then powerpc failed to compile loc 2 loc 4 cuu in dup_e.e. Revise the integer conversions, so powerpc can compile and pass the test.		2017-12-09 18:57:10 -05:00
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plat	Revise stack shuffles and integer conversions in PowerPC ncg.	2017-12-09 18:57:10 -05:00