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| author |  Adam Chlipala <adam@chlipala.net> | 2012-09-14 07:35:48 -0400 |
|---|---|---|
| committer | Adam Chlipala <adam@chlipala.net> | 2012-09-14 07:35:48 -0400 |
| commit | c5d8397eb399131837d7205eae3740a033196d66 (patch) | |
| tree | de44eddd9809612b4ad1e658a2205cb3b0ceca0e /src/mono_reduce.sml | |
| parent | 1d8ba11549f4aa8cac67b4e1111648e978229689 (diff) | |
Reduce default inlining thresholds; improve a let-substitution optimization to compensate
Diffstat (limited to 'src/mono_reduce.sml')
| -rw-r--r-- | src/mono_reduce.sml | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/src/mono_reduce.sml b/src/mono_reduce.sml index af61489c..c633bfce 100644 --- a/src/mono_reduce.sml +++ b/src/mono_reduce.sml @@ -313,10 +313,28 @@ fun reduce file = val (timpures, impures, absCounts) = foldl (fn ((d, _), (timpures, impures, absCounts)) => let - fun countAbs (e, _) = - case e of - EAbs (_, _, _, e) => 1 + countAbs e - | _ => 0 + fun countAbs env e = + case #1 e of + EAbs (x, t, _, e) => 1 + countAbs (E.pushERel env x t NONE) e + | _ => + let + fun remaining e = + case #1 e of + ENamed n => IM.find (absCounts, n) + | EApp (e, arg) => + if simpleImpure (timpures, impures) env arg then + NONE + else + (case remaining e of + NONE => NONE + | SOME n => if n > 0 then + SOME (n - 1) + else + NONE) + | _ => NONE + in + getOpt (remaining e, 0) + end in case d of DDatatype dts => @@ -335,7 +353,7 @@ fun reduce file = IS.add (impures, n) else impures, - IM.insert (absCounts, n, countAbs e)) + IM.insert (absCounts, n, countAbs E.empty e)) | DValRec vis => (timpures, if List.exists (fn (_, _, _, e, _) => simpleImpure (timpures, impures) E.empty e) vis then @@ -344,7 +362,7 @@ fun reduce file = else impures, foldl (fn ((x, n, _, e, _), absCounts) => - IM.insert (absCounts, n, countAbs e)) + IM.insert (absCounts, n, countAbs E.empty e)) absCounts vis) | _ => (timpures, impures, absCounts) end) |