[project @ 2001-10-24 08:38:03 by simonpj]

[project @ 2001-10-24 08:38:03 by simonpj]
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	Several improvements to demand analysis
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* Make the demand analyser cleverer about strict CPR-able thunks.
  Detailed comments in DmdAnal.mk_sig_ty.ignore_cpr_info.

* Make the demand analyser cleverer about CPR info for case
  binders.  E.g.
	case x of { (True,b) -> x;
		    (False,b) -> (b,False) }
  Here, the expression *does* have the CPR property, because
  the lone use of x is inside a case.

* Move the unsafePerformIO HACK from WorkWrap into here
  (where is is very slightly less awful).