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Internals: Rename isSplittable->isPure. No functional change

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This commit is contained in:
Wilson Snyder 2011-12-15 19:13:54 -05:00
parent c4504a9221
commit 4da9b5e491
6 changed files with 38 additions and 38 deletions
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2
src/V3Ast.h
View File

@ -967,7 +967,7 @@ public:
void dumpTreeFile(const string& filename, bool append=false);
// METHODS - queries
virtual bool isSplittable() const { return true; } // Else a $display, etc, that must be ordered with other displays
virtual bool isPure() const { return true; } // Else a $display, etc, that must be ordered with other displays
virtual bool isGateOptimizable() const { return true; } // Else a AstTime etc that can't be pushed out
virtual bool isSubstOptimizable() const { return true; } // Else a AstTime etc that can't be substituted out
virtual bool isPredictOptimizable() const { return true; } // Else a AstTime etc which output can't be predicted from input

62
src/V3AstNodes.h
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@ -705,7 +705,7 @@ public:
&& !isSc() && !isPrimaryIO() && !isConst()); }
bool isStatementTemp() const { return (varType()==AstVarType::STMTTEMP); }
bool isMovableToBlock() const { return (varType()==AstVarType::BLOCKTEMP || isFuncLocal()); }
bool isPure() const { return (varType()==AstVarType::XTEMP); }
bool isXTemp() const { return (varType()==AstVarType::XTEMP); }
bool isParam() const { return (varType()==AstVarType::LPARAM || varType()==AstVarType::GPARAM); }
bool isGParam() const { return (varType()==AstVarType::GPARAM); }
bool isGenVar() const { return (varType()==AstVarType::GENVAR); }
@ -1545,7 +1545,7 @@ public:
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isOutputter() const { return true; }
// but isSplittable() true
// but isPure() true
AstCoverDecl* declp() const { return m_declp; } // Where defined
};
@ -1566,7 +1566,7 @@ struct AstCoverToggle : public AstNodeStmt {
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return true; }
virtual bool isOutputter() const { return false; } // Though the AstCoverInc under this is an outputter
// but isSplittable() true
// but isPure() true
AstCoverInc* incp() const { return op1p()->castCoverInc(); }
void incp(AstCoverInc* nodep) { setOp1p(nodep); }
AstNode* origp() const { return op2p(); }
@ -1691,7 +1691,7 @@ public:
: (string)"$"+(string)displayType().ascii()); }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; } // SPECIAL: $display has 'visual' ordering
virtual bool isPure() const { return false; } // SPECIAL: $display has 'visual' ordering
virtual bool isOutputter() const { return true; } // SPECIAL: $display makes output
virtual bool isUnlikely() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(displayType()); }
@ -1722,7 +1722,7 @@ struct AstSFormat : public AstNode {
virtual string emitC() { V3ERROR_NA; return ""; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return true; }
virtual bool isSplittable() const { return true; }
virtual bool isPure() const { return true; }
virtual bool isOutputter() const { return false; }
virtual bool cleanOut() { return false; }
virtual int instrCount() const { return instrCountPli(); }
@ -1743,7 +1743,7 @@ struct AstSysIgnore : public AstNode {
virtual string verilogKwd() const { return "$ignored"; }
virtual bool isGateOptimizable() const { return false; } // Though deleted before opt
virtual bool isPredictOptimizable() const { return false; } // Though deleted before opt
virtual bool isSplittable() const { return false; } // Though deleted before opt
virtual bool isPure() const { return false; } // Though deleted before opt
virtual bool isOutputter() const { return true; } // Though deleted before opt
virtual int instrCount() const { return instrCountPli(); }
AstNode* exprsp() const { return op1p()->castNode(); } // op1 = Expressions to output
@ -1761,7 +1761,7 @@ struct AstFClose : public AstNodeStmt {
virtual string verilogKwd() const { return "$fclose"; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual bool isUnlikely() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(); }
@ -1781,7 +1781,7 @@ struct AstFOpen : public AstNodeStmt {
virtual string verilogKwd() const { return "$fopen"; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual bool isUnlikely() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(); }
@ -1802,7 +1802,7 @@ struct AstFFlush : public AstNodeStmt {
virtual string verilogKwd() const { return "$fflush"; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual bool isUnlikely() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(); }
@ -1830,7 +1830,7 @@ public:
virtual string emitC() { V3ERROR_NA; return ""; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; } // SPECIAL: has 'visual' ordering
virtual bool isPure() const { return false; } // SPECIAL: has 'visual' ordering
virtual bool isOutputter() const { return true; } // SPECIAL: makes output
virtual bool cleanOut() { return false; }
virtual V3Hash sameHash() const { return V3Hash(text()); }
@ -1863,7 +1863,7 @@ public:
virtual string emitC() { V3ERROR_NA; return ""; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; } // SPECIAL: has 'visual' ordering
virtual bool isPure() const { return false; } // SPECIAL: has 'visual' ordering
virtual bool isOutputter() const { return true; } // SPECIAL: makes output
virtual bool cleanOut() { return false; }
virtual V3Hash sameHash() const { return V3Hash(text()); }
@ -1890,7 +1890,7 @@ public:
virtual string verilogKwd() const { return (isHex()?"$readmemh":"$readmemb"); }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual bool isUnlikely() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(); }
@ -1912,7 +1912,7 @@ struct AstSystemT : public AstNodeStmt {
virtual string verilogKwd() const { return "$system"; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual bool isUnlikely() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(); }
@ -1932,7 +1932,7 @@ struct AstSystemF : public AstNodeMath {
virtual string emitC() { return "VL_SYSTEM_%nq(%lw, %P)"; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual bool isUnlikely() const { return true; }
virtual bool cleanOut() { return true; }
@ -2040,7 +2040,7 @@ struct AstBreak : public AstNodeStmt {
ASTNODE_NODE_FUNCS(Break, BREAK)
virtual string verilogKwd() const { return "break"; };
virtual V3Hash sameHash() const { return V3Hash(); }
virtual bool isSplittable() const { return false; } // SPECIAL: We don't process code after breaks
virtual bool isPure() const { return false; } // SPECIAL: We don't process code after breaks
};
struct AstContinue : public AstNodeStmt {
@ -2049,7 +2049,7 @@ struct AstContinue : public AstNodeStmt {
ASTNODE_NODE_FUNCS(Continue, CONTINUE)
virtual string verilogKwd() const { return "continue"; };
virtual V3Hash sameHash() const { return V3Hash(); }
virtual bool isSplittable() const { return false; } // SPECIAL: We don't process code after breaks
virtual bool isPure() const { return false; } // SPECIAL: We don't process code after breaks
};
struct AstDisable : public AstNodeStmt {
@ -2061,7 +2061,7 @@ public:
ASTNODE_NODE_FUNCS(Disable, DISABLE)
virtual string name() const { return m_name; } // * = Block name
void name(const string& flag) { m_name=flag; }
virtual bool isSplittable() const { return false; } // SPECIAL: We don't process code after breaks
virtual bool isPure() const { return false; } // SPECIAL: We don't process code after breaks
};
struct AstReturn : public AstNodeStmt {
@ -2073,7 +2073,7 @@ struct AstReturn : public AstNodeStmt {
virtual string verilogKwd() const { return "return"; };
virtual V3Hash sameHash() const { return V3Hash(); }
AstNode* lhsp() const { return op1p(); }
virtual bool isSplittable() const { return false; } // SPECIAL: We don't process code after breaks
virtual bool isPure() const { return false; } // SPECIAL: We don't process code after breaks
};
struct AstGenIf : public AstNodeIf {
@ -2145,7 +2145,7 @@ public:
virtual bool same(AstNode* samep) const { // Also same if identical tree structure all the way down, but hard to detect
return labelp()==samep->castJumpGo()->labelp(); }
virtual bool isGateOptimizable() const { return false; }
virtual bool isSplittable() const { return false; } // SPECIAL: We don't process code after breaks
virtual bool isPure() const { return false; } // SPECIAL: We don't process code after breaks
AstJumpLabel* labelp() const { return m_labelp; }
};
@ -2267,7 +2267,7 @@ struct AstStop : public AstNodeStmt {
ASTNODE_NODE_FUNCS(Stop, STOP)
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; } // SPECIAL: $display has 'visual' ordering
virtual bool isPure() const { return false; } // SPECIAL: $display has 'visual' ordering
virtual bool isOutputter() const { return true; } // SPECIAL: $display makes output
virtual bool isUnlikely() const { return true; }
virtual int instrCount() const { return 0; } // Rarely executes
@ -2282,7 +2282,7 @@ struct AstFinish : public AstNodeStmt {
ASTNODE_NODE_FUNCS(Finish, FINISH)
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; } // SPECIAL: $display has 'visual' ordering
virtual bool isPure() const { return false; } // SPECIAL: $display has 'visual' ordering
virtual bool isOutputter() const { return true; } // SPECIAL: $display makes output
virtual bool isUnlikely() const { return true; }
virtual int instrCount() const { return 0; } // Rarely executes
@ -2363,7 +2363,7 @@ public:
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isOutputter() const { return true; }
// but isSplittable() true
// but isPure() true
// op1 = Statements before the value
AstNode* precondsp() const { return op1p()->castNode(); } // op1= prepare statements for condition (exec every loop)
void addPrecondsp(AstNode* newp) { addOp1p(newp); }
@ -2533,7 +2533,7 @@ struct AstUCFunc : public AstNodeMath {
virtual string emitVerilog() { V3ERROR_NA; return ""; } // Implemented specially
virtual string emitC() { V3ERROR_NA; return ""; }
AstNode* bodysp() const { return op1p()->castNode(); } // op1= expressions to print
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
virtual bool isGateOptimizable() const { return false; }
virtual bool isSubstOptimizable() const { return false; }
@ -3771,7 +3771,7 @@ struct AstScCtor : public AstNodeText {
AstScCtor(FileLine* fl, const string& textp)
: AstNodeText(fl, textp) {}
ASTNODE_NODE_FUNCS(ScCtor, SCCTOR)
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
};
@ -3779,7 +3779,7 @@ struct AstScDtor : public AstNodeText {
AstScDtor(FileLine* fl, const string& textp)
: AstNodeText(fl, textp) {}
ASTNODE_NODE_FUNCS(ScDtor, SCDTOR)
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
};
@ -3787,7 +3787,7 @@ struct AstScHdr : public AstNodeText {
AstScHdr(FileLine* fl, const string& textp)
: AstNodeText(fl, textp) {}
ASTNODE_NODE_FUNCS(ScHdr, SCHDR)
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
};
@ -3795,7 +3795,7 @@ struct AstScImp : public AstNodeText {
AstScImp(FileLine* fl, const string& textp)
: AstNodeText(fl, textp) {}
ASTNODE_NODE_FUNCS(ScImp, SCIMP)
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
};
@ -3803,7 +3803,7 @@ struct AstScImpHdr : public AstNodeText {
AstScImpHdr(FileLine* fl, const string& textp)
: AstNodeText(fl, textp) {}
ASTNODE_NODE_FUNCS(ScImpHdr, SCIMPHDR)
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
};
@ -3811,7 +3811,7 @@ struct AstScInt : public AstNodeText {
AstScInt(FileLine* fl, const string& textp)
: AstNodeText(fl, textp) {}
ASTNODE_NODE_FUNCS(ScInt, SCINT)
virtual bool isSplittable() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isPure() const { return false; } // SPECIAL: User may order w/other sigs
virtual bool isOutputter() const { return true; }
};
@ -3825,7 +3825,7 @@ struct AstUCStmt : public AstNodeStmt {
AstNode* bodysp() const { return op1p()->castNode(); } // op1= expressions to print
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return false; }
virtual bool isPure() const { return false; }
virtual bool isOutputter() const { return true; }
virtual V3Hash sameHash() const { return V3Hash(); }
virtual bool same(AstNode* samep) const { return true; }
@ -4008,7 +4008,7 @@ public:
AstNode* exprsp() const { return op1p()->castNode(); } // op1= expressions to print
virtual bool isGateOptimizable() const { return false; }
virtual bool isPredictOptimizable() const { return false; }
virtual bool isSplittable() const { return funcp()->pure(); }
virtual bool isPure() const { return funcp()->pure(); }
virtual bool isOutputter() const { return !(funcp()->pure()); }
AstCFunc* funcp() const { return m_funcp; }
string hiername() const { return m_hiername; }

4
src/V3ClkGater.cpp
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@ -862,9 +862,9 @@ class GaterVisitor : public GaterBaseVisitor {
m_stmtVscp = NULL;
m_stmtInPli = false;
}
if (!nodep->isSplittable()) {
if (!nodep->isPure()) {
// May also be a new statement (above if); if so we mark it immediately
UINFO(9," NotSplittable "<<nodep<<endl);
UINFO(9," NotPure "<<nodep<<endl);
scoreboardPli(nodep);
}
{

2
src/V3Gate.cpp
View File

@ -195,7 +195,7 @@ private:
// *** Special iterator
if (!m_isSimple) return; // Fastpath
if (!nodep->isGateOptimizable()
|| !nodep->isSplittable()) {
|| !nodep->isPure()) {
UINFO(5, "Non optimizable type: "<<nodep<<endl);
clearSimple("Non optimizable type");
}

4
src/V3Split.cpp
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@ -46,7 +46,7 @@
// v1Dly -> S1 -> {empty}
// Multiple assignments to the same variable must remain in order
//
// Also vars must not be "public" and we also scoreboard nodep->isSplittable()
// Also vars must not be "public" and we also scoreboard nodep->isPure()
//
//*************************************************************************
@ -555,7 +555,7 @@ private:
// Default
virtual void visit(AstNode* nodep, AstNUser*) {
// **** SPECIAL default type that sets PLI_ORDERING
if (!m_stmtStackps.empty() && !nodep->isSplittable()) {
if (!m_stmtStackps.empty() && !nodep->isPure()) {
UINFO(9," NotSplittable "<<nodep<<endl);
scoreboardPli();
}

2
src/V3Task.cpp
View File

@ -223,7 +223,7 @@ private:
nodep->iterateChildren(*this);
if (nodep->varp()->user4p() != m_curVxp) {
if (m_curVxp->pure()
&& !nodep->varp()->isPure()) {
&& !nodep->varp()->isXTemp()) {
m_curVxp->impure(nodep);
}
}