From c8bebd3d95f8ec4d723b5628108745c8174bb3c4 Mon Sep 17 00:00:00 2001
From: Norman Ramsey <nr@eecs.harvard.edu>
Date: Sat, 15 Sep 2007 21:51:38 +0000
Subject: [PATCH] add another way to run in the fuel monad (this is a mess
 right now)

---
 compiler/cmm/DFMonad.hs |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/compiler/cmm/DFMonad.hs b/compiler/cmm/DFMonad.hs
index e8afab4..970cdcb 100644
--- a/compiler/cmm/DFMonad.hs
+++ b/compiler/cmm/DFMonad.hs
@@ -2,6 +2,7 @@
 module DFMonad
     ( OptimizationFuel
     , DFTx, runDFTx, lastTxPass, txDecrement, txRemaining, txExhausted
+    , functionalDFTx
 
     , DataflowLattice(..)
     , DataflowAnalysis
@@ -108,6 +109,11 @@ runDFA lattice (DFA f) = fst $ f lattice initDFAState
 -- XXX DFTx really needs to be in IO, so we can dump programs in
 -- intermediate states of optimization ---NR
 
+functionalDFTx :: String -> (OptimizationFuel -> (a, OptimizationFuel)) -> DFTx a
+functionalDFTx name pass = DFTx f
+    where f s = let (a, fuel) = pass (df_txlimit s)
+                in  (a, DFTxState fuel name)
+
 runDFTx :: OptimizationFuel -> DFTx a -> a  --- should only be called once per program!
 runDFTx lim (DFTx f) = fst $ f $ DFTxState lim "<none>"
 
-- 
1.7.10.4