id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
160	implement minimal global value propagation	felix winkelmann	felix winkelmann	"in the toplevel scan, expressions like `(set! <var1> <var2>)` can be used to mark `<var1>` as an alias to `<var2>`, if `<var2>` is itself an alias or an intrinsic.
"	enhancement	closed	minor		compiler	4.3.x	fixed