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Have V3Life unlink at end to prevent proposed new-iteration scheme from breaking.

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This commit is contained in:
Wilson Snyder 2009-10-14 08:26:30 -04:00
parent 1b5e1943f5
commit fe3b54bc2e
2 changed files with 13 additions and 2 deletions
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13
src/V3Life.cpp
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@ -34,6 +34,7 @@
#include <cstdarg>
#include <unistd.h>
#include <map>
#include <vector>
#include "V3Global.h"
#include "V3Life.h"
@ -53,13 +54,21 @@ class LifeState {
public:
V3Double0 m_statAssnDel; // Statistic tracking
V3Double0 m_statAssnCon; // Statistic tracking
vector<AstNode*> m_unlinkps;
public:
// CONSTRUCTORS
LifeState() {}
~LifeState() {
V3Stats::addStat("Optimizations, Lifetime assign deletions", m_statAssnDel);
V3Stats::addStat("Optimizations, Lifetime constant prop", m_statAssnCon);
for (vector<AstNode*>::iterator it = m_unlinkps.begin(); it != m_unlinkps.end(); ++it) {
(*it)->unlinkFrBack();
(*it)->deleteTree();
}
}
// METHODS
void pushUnlinkDeletep(AstNode* nodep) { m_unlinkps.push_back(nodep); }
};
//######################################################################
@ -144,9 +153,11 @@ public:
if (AstNode* oldassp = entp->assignp()) {
UINFO(7," PREV: "<<oldassp<<endl);
// Redundant assignment, in same level block
// Don't delete it now as it will confuse iteration since it maybe WAY
// above our current iteration point.
if (debug()>4) oldassp->dumpTree(cout, " REMOVE/SAMEBLK ");
entp->complexAssign();
oldassp->unlinkFrBack()->deleteTree(); oldassp=NULL;
m_statep->pushUnlinkDeletep(oldassp); oldassp=NULL;
m_statep->m_statAssnDel++;
}
}

2
src/Verilator.cpp
View File

@ -267,7 +267,7 @@ void process () {
// Loop unrolling & convert FORs to WHILEs
V3Unroll::unrollAll(v3Global.rootp());
//v3Global.rootp()->dumpTreeFile(v3Global.debugFilename("unroll.tree"));
v3Global.rootp()->dumpTreeFile(v3Global.debugFilename("unroll.tree"));
// Convert case statements to if() blocks. Must be after V3Unknown
V3Case::caseAll(v3Global.rootp());