Remove the (very) old strictness analyser

[ghc-hetmet.git] / compiler / simplCore / SimplCore.lhs

diff --git a/compiler/simplCore/SimplCore.lhs b/compiler/simplCore/SimplCore.lhs
index 0f881cf..beb1ed0 100644 (file)
--- a/compiler/simplCore/SimplCore.lhs
+++ b/compiler/simplCore/SimplCore.lhs
@@ -31,6 +31,7 @@ import OccurAnal      ( occurAnalysePgm, occurAnalyseExpr )
 import IdInfo
 import CoreUtils       ( coreBindsSize )
 import Simplify                ( simplTopBinds, simplExpr )
+import SimplUtils      ( simplEnvForGHCi, simplEnvForRules )
 import SimplEnv
 import SimplMonad
 import CoreMonad
@@ -54,10 +55,6 @@ import Specialise    ( specProgram)
 import SpecConstr      ( specConstrProgram)
 import DmdAnal         ( dmdAnalPgm )
 import WorkWrap                ( wwTopBinds )
-#ifdef OLD_STRICTNESS
-import StrictAnal      ( saBinds )
-import CprAnalyse       ( cprAnalyse )
-#endif
 import Vectorise        ( vectorise )
 import FastString
 import Util
@@ -120,6 +117,8 @@ simplifyExpr :: DynFlags -- includes spec of what core-to-core passes to do
             -> IO CoreExpr
 -- simplifyExpr is called by the driver to simplify an
 -- expression typed in at the interactive prompt
+--
+-- Also used by Template Haskell
 simplifyExpr dflags expr
   = do {
        ; Err.showPass dflags "Simplify"
@@ -127,7 +126,7 @@ simplifyExpr dflags expr
        ; us <-  mkSplitUniqSupply 's'
 
        ; let (expr', _counts) = initSmpl dflags emptyRuleBase emptyFamInstEnvs us $
-                                simplExprGently gentleSimplEnv expr
+                                simplExprGently simplEnvForGHCi expr
 
        ; Err.dumpIfSet_dyn dflags Opt_D_dump_simpl "Simplified expression"
                        (pprCoreExpr expr')
@@ -135,9 +134,6 @@ simplifyExpr dflags expr
        ; return expr'
        }
 
-gentleSimplEnv :: SimplEnv
-gentleSimplEnv = mkSimplEnv SimplGently  (isAmongSimpl [])
-
 doCorePasses :: [CorePass] -> ModGuts -> CoreM ModGuts
 doCorePasses passes guts = foldM (flip doCorePass) guts passes
 
@@ -190,24 +186,8 @@ doCorePass CoreDoGlomBinds              = dontDescribePass $ doPassDM  glomBinds
 doCorePass CoreDoPrintCore              = dontDescribePass $ observe   printCore
 doCorePass (CoreDoRuleCheck phase pat)  = dontDescribePass $ ruleCheck phase pat
 
-#ifdef OLD_STRICTNESS
-doCorePass CoreDoOldStrictness          = {-# SCC "OldStrictness" #-} doOldStrictness
-#endif
-
 doCorePass CoreDoNothing                = return
 doCorePass (CoreDoPasses passes)        = doCorePasses passes
-
-#ifdef OLD_STRICTNESS
-doOldStrictness :: ModGuts -> CoreM ModGuts
-doOldStrictness guts
-  = do dfs <- getDynFlags
-       guts'  <- describePass "Strictness analysis" Opt_D_dump_stranal $ 
-                 doPassM (saBinds dfs) guts
-       guts'' <- describePass "Constructed Product analysis" Opt_D_dump_cpranal $ 
-                 doPass cprAnalyse guts'
-       return guts''
-#endif
-
 \end{code}
 
 %************************************************************************
@@ -333,7 +313,7 @@ prepareRules hsc_env@(HscEnv { hsc_dflags = dflags, hsc_HPT = hpt })
        ; let   -- Simplify the local rules; boringly, we need to make an in-scope set
                -- from the local binders, to avoid warnings from Simplify.simplVar
              local_ids        = mkInScopeSet (mkVarSet (bindersOfBinds binds))
-             env              = setInScopeSet gentleSimplEnv local_ids 
+             env              = setInScopeSet simplEnvForRules local_ids 
              (simpl_rules, _) = initSmpl dflags emptyRuleBase emptyFamInstEnvs us $
                                 mapM (simplRule env) local_rules
 
@@ -409,6 +389,7 @@ The simplifier does indeed do eta reduction (it's in
 Simplify.completeLam) but only if -O is on.
 
 \begin{code}
+simplRule :: SimplEnv -> CoreRule -> SimplM CoreRule
 simplRule env rule@(BuiltinRule {})
   = return rule
 simplRule env rule@(Rule { ru_bndrs = bndrs, ru_args = args, ru_rhs = rhs })
@@ -571,7 +552,7 @@ simplifyPgmIO mode switches hsc_env us hpt_rule_base
           eps <- hscEPS hsc_env ;
           let  { rule_base1 = unionRuleBase hpt_rule_base (eps_rule_base eps)
                ; rule_base2 = extendRuleBaseList rule_base1 rules
-               ; simpl_env  = mkSimplEnv mode sw_chkr 
+               ; simpl_env  = mkSimplEnv sw_chkr mode
                ; simpl_binds = {-# SCC "SimplTopBinds" #-} 
                                simplTopBinds simpl_env tagged_binds
                ; fam_envs = (eps_fam_inst_env eps, fam_inst_env) } ;
@@ -843,7 +824,7 @@ transferIdInfo exported_id local_id
   = modifyIdInfo transfer exported_id
   where
     local_info = idInfo local_id
-    transfer exp_info = exp_info `setNewStrictnessInfo` newStrictnessInfo local_info
+    transfer exp_info = exp_info `setStrictnessInfo` strictnessInfo local_info
                                 `setUnfoldingInfo`     unfoldingInfo local_info
                                 `setInlinePragInfo`    inlinePragInfo local_info
                                 `setSpecInfo`          addSpecInfo (specInfo exp_info) new_info