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Commit 84fcd9d2 authored by Ronny Wichers Schreur's avatar Ronny Wichers Schreur 🏘
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local reference counts for CaseNode and DefaultNode

parent 80210ff8
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Inline Side-by-side
backend/backendconvert.icl
View file @ 84fcd9d2
......@@ -1174,7 +1174,7 @@ convertTransformedBody functionIndex lineNumber aliasDummyId body main_dcl_modul
o` convertCodeBody functionIndex lineNumber aliasDummyId body main_dcl_module_n varHeap
// otherwise
= declareVars body (aliasDummyId, varHeap)
o` convertBody functionIndex lineNumber aliasDummyId (map FP_Variable body.tb_args) body.tb_rhs main_dcl_module_n varHeap
o` convertBody True functionIndex lineNumber aliasDummyId (map FP_Variable body.tb_args) body.tb_rhs main_dcl_module_n varHeap
isCodeBlock :: Expression -> Bool
isCodeBlock (Case {case_expr=Var _, case_guards=AlgebraicPatterns _ [{ap_expr}]})
......@@ -1197,13 +1197,13 @@ where
convertBackEndBody :: Int Int Ident Int VarHeap BackEndBody -> BEMonad BERuleAltP
convertBackEndBody functionIndex lineNumber aliasDummyId main_dcl_module_n varHeap body
= declareVars body (aliasDummyId, varHeap)
o` convertBody functionIndex lineNumber aliasDummyId body.bb_args body.bb_rhs main_dcl_module_n varHeap
o` convertBody False functionIndex lineNumber aliasDummyId body.bb_args body.bb_rhs main_dcl_module_n varHeap
convertFunctionBody functionIndex lineNumber aliasDummyId (TransformedBody body) main_dcl_module_n varHeap
= convertTransformedBody functionIndex lineNumber aliasDummyId body main_dcl_module_n varHeap
convertCodeBody :: Int Int Ident TransformedBody Int VarHeap -> BEMonad BERuleAltP
convertCodeBody functionIndex lineNumber aliasDummyId body main_dcl_module_n varHeap
= convertBody functionIndex lineNumber aliasDummyId patterns expr main_dcl_module_n varHeap
= convertBody False functionIndex lineNumber aliasDummyId patterns expr main_dcl_module_n varHeap
where
patterns
= map (lookUpVar body.tb_rhs) body.tb_args
......@@ -1228,25 +1228,36 @@ convertCodeBody functionIndex lineNumber aliasDummyId body main_dcl_module_n var
codeBlock expr
= expr
ruleAlt setRefCounts line lhsDefsM lhsM rhsDefsM rhsStrictsM rhsM be
| setRefCounts
# (lhs, be)
= lhsM be
# be
= appBackEnd (BESetNodeDefRefCounts lhs) be
# (lhsDefs, be)
= lhsDefsM be
= beFunction3 (BERuleAlt line lhsDefs lhs) rhsDefsM rhsStrictsM rhsM be
// otherwise
= beRuleAlt line lhsDefsM lhsM rhsDefsM rhsStrictsM rhsM be
convertBody :: Int Int Ident [FunctionPattern] Expression Int VarHeap -> BEMonad BERuleAltP
convertBody functionIndex lineNumber aliasDummyId args (ABCCodeExpr instructions inline) main_dcl_module_n varHeap
convertBody :: Bool Int Int Ident [FunctionPattern] Expression Int VarHeap -> BEMonad BERuleAltP
convertBody _ functionIndex lineNumber aliasDummyId args (ABCCodeExpr instructions inline) main_dcl_module_n varHeap
= beNoNodeDefs ==> \noNodeDefs
-> beCodeAlt
lineNumber
(convertLhsNodeDefs args noNodeDefs varHeap)
(convertBackEndLhs functionIndex args main_dcl_module_n varHeap)
(beAbcCodeBlock inline (convertStrings instructions))
convertBody functionIndex lineNumber aliasDummyId args (AnyCodeExpr inParams outParams instructions) main_dcl_module_n varHeap
convertBody _ functionIndex lineNumber aliasDummyId args (AnyCodeExpr inParams outParams instructions) main_dcl_module_n varHeap
= beNoNodeDefs ==> \noNodeDefs
-> beCodeAlt
lineNumber
(convertLhsNodeDefs args noNodeDefs varHeap)
(convertBackEndLhs functionIndex args main_dcl_module_n varHeap)
(beAnyCodeBlock (convertCodeParameters inParams varHeap) (convertCodeParameters outParams varHeap) (convertStrings instructions))
convertBody functionIndex lineNumber aliasDummyId args rhs main_dcl_module_n varHeap
convertBody setRefCounts functionIndex lineNumber aliasDummyId args rhs main_dcl_module_n varHeap
= beNoNodeDefs ==> \noNodeDefs
-> beRuleAlt
-> ruleAlt setRefCounts
lineNumber
(convertLhsNodeDefs args noNodeDefs varHeap)
(convertBackEndLhs functionIndex args main_dcl_module_n varHeap)
......@@ -1568,7 +1579,6 @@ where
= 1
arity (Yes {glob_object={ds_arity}})
= ds_arity
// this alternative should be deleted (can't occur)
convertExpr (Conditional {if_cond=cond, if_then, if_else=Yes else}) varHeap
= beIfNode (convertExpr cond varHeap) (convertExpr if_then varHeap) (convertExpr else varHeap)
......@@ -1621,24 +1631,83 @@ instance convertCases CasePatterns where
instance convertCases [a] | convertCase a where
convertCases patterns aliasDummyId var optionalCase main_dcl_module_n varHeap
= sfoldr (beArgs o convertCase main_dcl_module_n varHeap aliasDummyId var) (convertDefaultCase optionalCase aliasDummyId main_dcl_module_n varHeap) patterns
class convertCase a :: Int VarHeap Ident BoundVar a -> BEMonad BENodeP
= sfoldr (beArgs o convertCase main_dcl_module_n (localRefCounts patterns optionalCase)
varHeap aliasDummyId var) (convertDefaultCase optionalCase aliasDummyId main_dcl_module_n varHeap) patterns
where
localRefCounts [x] No
= False
localRefCounts _ _
= True
class convertCase a :: Int Bool VarHeap Ident BoundVar a -> BEMonad BENodeP
caseNode localRefCounts arity symbolM defsM strictsM rhsM be
| localRefCounts
# be
= appBackEnd BEEnterLocalScope be
# (symbol, be)
= symbolM be
# (rhs, be)
= rhsM be
# (defs, be)
= defsM be
# (stricts, be)
= strictsM be
# (kees, be)
= accBackEnd (BECaseNode arity symbol defs stricts rhs) be
# be
= appBackEnd (BELeaveLocalScope kees) be
= (kees, be)
// otherwise
# (symbol, be)
= symbolM be
# (rhs, be)
= rhsM be
# (defs, be)
= defsM be
# (stricts, be)
= strictsM be
# (kees, be)
= accBackEnd (BECaseNode arity symbol defs stricts rhs) be
= (kees, be)
// = beCaseNode arity symbolM defsM strictsM rhsM be
defaultNode defsM strictsM rhsM be
# be
= appBackEnd BEEnterLocalScope be
# (defaul, be)
= beDefaultNode defsM strictsM rhsM be
# be
= appBackEnd (BELeaveLocalScope defaul) be
= (defaul, be)
pushNode arity var varHeap symbolM argM nodeIdsM be
# (symbol, be)
= symbolM be
# (nodeIds, be)
= nodeIdsM be
# (sequenceNumber, be)
= getVariableSequenceNumber var.var_info_ptr varHeap be
# be
= appBackEnd (BEAddNodeIdsRefCounts sequenceNumber symbol nodeIds) be
# (arg, be)
= argM be
= accBackEnd (BEPushNode arity symbol arg nodeIds) be
instance convertCase AlgebraicPattern where
convertCase main_dcl_module_n varHeap aliasDummyId var {ap_symbol={glob_module,glob_object={ds_index}}, ap_vars, ap_expr}
convertCase main_dcl_module_n localRefCounts varHeap aliasDummyId var {ap_symbol={glob_module,glob_object={ds_index}}, ap_vars, ap_expr}
| symbolArity == 0
= beCaseNode 0
= caseNode localRefCounts 0
(beConstructorSymbol glob_module ds_index)
(convertRhsNodeDefs aliasDummyId ap_expr main_dcl_module_n varHeap)
(convertRhsStrictNodeIds ap_expr varHeap)
(convertRootExpr aliasDummyId ap_expr main_dcl_module_n varHeap)
// otherwise
= beCaseNode symbolArity
= caseNode localRefCounts symbolArity
(beConstructorSymbol glob_module ds_index)
(convertRhsNodeDefs aliasDummyId ap_expr main_dcl_module_n varHeap)
(convertRhsStrictNodeIds ap_expr varHeap)
(bePushNode symbolArity
(pushNode symbolArity var varHeap
(beConstructorSymbol glob_module ds_index)
(beArgs (convertExpr (Var var) main_dcl_module_n varHeap) (beArgs (convertRootExpr aliasDummyId ap_expr main_dcl_module_n varHeap) beNoArgs))
(convertPatternVars ap_vars varHeap))
......@@ -1647,8 +1716,8 @@ instance convertCase AlgebraicPattern where
= length ap_vars // curried patterns ???
instance convertCase BasicPattern where
convertCase main_dcl_module_n varHeap aliasDummyId _ {bp_value, bp_expr}
= beCaseNode 0
convertCase main_dcl_module_n localRefCounts varHeap aliasDummyId _ {bp_value, bp_expr}
= caseNode localRefCounts 0
(convertLiteralSymbol bp_value)
(convertRhsNodeDefs aliasDummyId bp_expr main_dcl_module_n varHeap)
(convertRhsStrictNodeIds bp_expr varHeap)
......@@ -1667,7 +1736,7 @@ convertDefaultCase No _ _ varHeap
= beNoArgs
convertDefaultCase (Yes expr) aliasDummyId main_dcl_module_n varHeap
= beArgs
(beDefaultNode
(defaultNode
(convertRhsNodeDefs aliasDummyId expr main_dcl_module_n varHeap)
(convertRhsStrictNodeIds expr varHeap)
(convertRootExpr aliasDummyId expr main_dcl_module_n varHeap))
......
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