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Internals: Constify tristates with ConstLive, unused so no functional change

This commit is contained in:
Wilson Snyder 2010-12-29 07:56:22 -05:00
parent c8852d183f
commit ebdf8a5f3c
1 changed files with 5 additions and 3 deletions
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8
src/V3Const.cpp
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@ -1613,6 +1613,8 @@ private:
// Note V3Case::Sel requires Cond to always be conditionally executed in C to prevent core dump!
TREEOP ("AstNodeCond{$condp.isZero, $expr1p, $expr2p}", "replaceWChild(nodep,$expr2p)");
TREEOP ("AstNodeCond{$condp.isNeqZero, $expr1p, $expr2p}", "replaceWChild(nodep,$expr1p)");
TREEOPC("AstNodeCond{$condp.isZero, $expr1p.castConst, $expr2p.castConst}", "replaceWChild(nodep,$expr2p)");
TREEOPC("AstNodeCond{$condp.isNeqZero, $expr1p.castConst, $expr2p.castConst}", "replaceWChild(nodep,$expr1p)");
TREEOP ("AstNodeCond{$condp, operandsSame($expr1p,,$expr2p)}","replaceWChild(nodep,$expr1p)");
TREEOP ("AstCond{$condp->castNot(), $expr1p, $expr2p}", "AstCond{$condp->op1p(), $expr2p, $expr1p}");
TREEOP ("AstNodeCond{$condp.width1, $expr1p.width1, $expr1p.isAllOnes, $expr2p}", "AstOr {$condp, $expr2p}"); // a?1:b == a|b
@ -1792,7 +1794,7 @@ public:
// Processing Mode Enum
enum ProcMode {
PROC_PARAMS,
PROC_V_LIVE,
PROC_LIVE,
PROC_V_WARN,
PROC_V_NOWARN,
PROC_V_EXPENSIVE,
@ -1813,7 +1815,7 @@ public:
//
switch (pmode) {
case PROC_PARAMS: m_doV = true; m_doNConst = true; m_params = true; m_required = true; break;
case PROC_V_LIVE: m_doV = true; break;
case PROC_LIVE: break;
case PROC_V_WARN: m_doV = true; m_doNConst = true; m_warn = true; break;
case PROC_V_NOWARN: m_doV = true; m_doNConst = true; break;
case PROC_V_EXPENSIVE: m_doV = true; m_doNConst = true; m_doExpensive = true; break;
@ -1874,7 +1876,7 @@ void V3Const::constifyAllLive(AstNetlist* nodep) {
// This only pushes constants up, doesn't make any other edits
// IE doesn't prune dead statements, as we need to do some usability checks after this
UINFO(2,__FUNCTION__<<": "<<endl);
ConstVisitor visitor (ConstVisitor::PROC_V_LIVE);
ConstVisitor visitor (ConstVisitor::PROC_LIVE);
(void)visitor.mainAcceptEdit(nodep);
}