mkConApp,
varToCoreExpr,
- bindersOf, bindersOfBinds, rhssOfBind, rhssOfAlts, isTyVar, isId,
+ isTyVar, isId,
+ bindersOf, bindersOfBinds, rhssOfBind, rhssOfAlts,
collectBinders, collectTyBinders, collectValBinders, collectTyAndValBinders,
collectArgs, collectBindersIgnoringNotes,
coreExprCc,
noUnfolding, mkOtherCon,
unfoldingTemplate, maybeUnfoldingTemplate, otherCons,
isValueUnfolding, isEvaldUnfolding, isCheapUnfolding, isCompulsoryUnfolding,
- hasUnfolding, hasSomeUnfolding,
+ hasUnfolding, hasSomeUnfolding, neverUnfold,
-- Seq stuff
seqRules, seqExpr, seqExprs, seqUnfolding,
-- Core rules
CoreRules(..), -- Representation needed by friends
CoreRule(..), -- CoreSubst, CoreTidy, CoreFVs, PprCore only
+ IdCoreRule,
RuleName,
emptyCoreRules, isEmptyCoreRules, rulesRhsFreeVars, rulesRules,
isBuiltinRule
#include "HsVersions.h"
import CostCentre ( CostCentre, noCostCentre )
-import Var ( Var, Id, TyVar, isTyVar, isId, idType )
-import Type ( Type, UsageAnn, mkTyVarTy, isUnLiftedType, seqType )
-import Literal ( Literal(MachStr), mkMachInt )
+import Var ( Var, Id, TyVar, isTyVar, isId )
+import Type ( Type, mkTyVarTy, seqType )
+import Literal ( Literal, mkMachInt )
import DataCon ( DataCon, dataConId )
import VarSet
import Outputable
| InlineMe -- Instructs simplifer to treat the enclosed expression
-- as very small, and inline it at its call sites
-
- | TermUsg -- A term-level usage annotation
- UsageAnn -- (should not be a variable except during UsageSP inference)
\end{code}
\begin{code}
type RuleName = FAST_STRING
+type IdCoreRule = (Id,CoreRule) -- Rules don't have their leading Id inside them
data CoreRule
= Rule RuleName
| CoreUnfolding -- An unfolding with redundant cached information
CoreExpr -- Template; binder-info is correct
- Bool -- This is a top-level binding
- Bool -- exprIsCheap template (cached); it won't duplicate (much) work
- -- if you inline this in more than one place
+ Bool -- True <=> top level binding
Bool -- exprIsValue template (cached); it is ok to discard a `seq` on
-- this variable
- Bool -- exprIsBottom template (cached)
+ Bool -- True <=> doesn't waste (much) work to expand inside an inlining
+ -- Basically it's exprIsCheap
UnfoldingGuidance -- Tells about the *size* of the template.
mkOtherCon = OtherCon
seqUnfolding :: Unfolding -> ()
-seqUnfolding (CoreUnfolding e top b1 b2 b3 g)
- = seqExpr e `seq` top `seq` b1 `seq` b2 `seq` b3 `seq` seqGuidance g
+seqUnfolding (CoreUnfolding e top b1 b2 g)
+ = seqExpr e `seq` top `seq` b1 `seq` b2 `seq` seqGuidance g
seqUnfolding other = ()
seqGuidance (UnfoldIfGoodArgs n ns a b) = n `seq` sum ns `seq` a `seq` b `seq` ()
\begin{code}
unfoldingTemplate :: Unfolding -> CoreExpr
-unfoldingTemplate (CoreUnfolding expr _ _ _ _ _) = expr
-unfoldingTemplate (CompulsoryUnfolding expr) = expr
+unfoldingTemplate (CoreUnfolding expr _ _ _ _) = expr
+unfoldingTemplate (CompulsoryUnfolding expr) = expr
unfoldingTemplate other = panic "getUnfoldingTemplate"
maybeUnfoldingTemplate :: Unfolding -> Maybe CoreExpr
-maybeUnfoldingTemplate (CoreUnfolding expr _ _ _ _ _) = Just expr
-maybeUnfoldingTemplate (CompulsoryUnfolding expr) = Just expr
-maybeUnfoldingTemplate other = Nothing
+maybeUnfoldingTemplate (CoreUnfolding expr _ _ _ _) = Just expr
+maybeUnfoldingTemplate (CompulsoryUnfolding expr) = Just expr
+maybeUnfoldingTemplate other = Nothing
otherCons :: Unfolding -> [AltCon]
otherCons (OtherCon cons) = cons
isValueUnfolding :: Unfolding -> Bool
-- Returns False for OtherCon
-isValueUnfolding (CoreUnfolding _ _ _ is_evald _ _) = is_evald
-isValueUnfolding other = False
+isValueUnfolding (CoreUnfolding _ _ is_evald _ _) = is_evald
+isValueUnfolding other = False
isEvaldUnfolding :: Unfolding -> Bool
-- Returns True for OtherCon
-isEvaldUnfolding (OtherCon _) = True
-isEvaldUnfolding (CoreUnfolding _ _ _ is_evald _ _) = is_evald
-isEvaldUnfolding other = False
+isEvaldUnfolding (OtherCon _) = True
+isEvaldUnfolding (CoreUnfolding _ _ is_evald _ _) = is_evald
+isEvaldUnfolding other = False
isCheapUnfolding :: Unfolding -> Bool
-isCheapUnfolding (CoreUnfolding _ _ is_cheap _ _ _) = is_cheap
-isCheapUnfolding other = False
+isCheapUnfolding (CoreUnfolding _ _ _ is_cheap _) = is_cheap
+isCheapUnfolding other = False
isCompulsoryUnfolding :: Unfolding -> Bool
isCompulsoryUnfolding (CompulsoryUnfolding _) = True
isCompulsoryUnfolding other = False
hasUnfolding :: Unfolding -> Bool
-hasUnfolding (CoreUnfolding _ _ _ _ _ _) = True
-hasUnfolding (CompulsoryUnfolding _) = True
-hasUnfolding other = False
+hasUnfolding (CoreUnfolding _ _ _ _ _) = True
+hasUnfolding (CompulsoryUnfolding _) = True
+hasUnfolding other = False
hasSomeUnfolding :: Unfolding -> Bool
hasSomeUnfolding NoUnfolding = False
hasSomeUnfolding other = True
+
+neverUnfold :: Unfolding -> Bool
+neverUnfold NoUnfolding = True
+neverUnfold (OtherCon _) = True
+neverUnfold (CoreUnfolding _ _ _ _ UnfoldNever) = True
+neverUnfold other = False
\end{code}
type CoreArg = Arg CoreBndr
type CoreBind = Bind CoreBndr
type CoreAlt = Alt CoreBndr
-type CoreNote = Note
\end{code}
Binders are ``tagged'' with a \tr{t}: