Commit 380ec6be authored by simonpj's avatar simonpj
Browse files

[project @ 2003-09-11 13:41:38 by simonpj]

Undo bogus claim that
	_scc_ "foo" x  ==  x

This just isn't right in general, for example when x is a
top-level function.
parent 52d7dd31
......@@ -214,12 +214,7 @@ mkCoerce2 to_ty from_ty expr
mkSCC :: CostCentre -> Expr b -> Expr b
-- Note: Nested SCC's *are* preserved for the benefit of
-- cost centre stack profiling
-- Note2: We throw away an SCC on a single variable. If the
-- variable is a value, then there is no work to do in
-- evaluating it, and if it is a thunk, then it will be
-- attributed to its own CCS anyhow.
mkSCC cc (Lit lit) = Lit lit
mkSCC cc (Var v) = Var v
mkSCC cc (Lam x e) = Lam x (mkSCC cc e) -- Move _scc_ inside lambda
mkSCC cc (Note (SCC cc') e) = Note (SCC cc) (Note (SCC cc') e)
mkSCC cc (Note n e) = Note n (mkSCC cc e) -- Move _scc_ inside notes
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment