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-	effect of register expansion on 32-bit shifts and masks etc
9c
-	multab
-	floating-point conversions
-	conversions of constants
-	nodtype for loads
-	sign-extension instruction (32-64) when in register?
-	double indexing
-	SLW (eg, in cat)
-	scheduling

9l
-	D_QCONST, DWORD
-	maskgen