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Support disable for loop escapes.

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This commit is contained in:
Wilson Snyder
2011-06-28 21:26:49 -04:00
parent 2e9471797d
commit 8137f41fc3
7 changed files with 59 additions and 3 deletions
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src/V3LinkJump.cpp
+21
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@@ -211,6 +211,27 @@ private:
}
nodep->unlinkFrBack(); pushDeletep(nodep); nodep=NULL;
}
virtual void visit(AstDisable* nodep, AstNUser*) {
UINFO(8," DISABLE "<<nodep<<endl);
nodep->iterateChildren(*this);
AstBegin* beginp = NULL;
for (BeginStack::reverse_iterator it = m_beginStack.rbegin(); it != m_beginStack.rend(); ++it) {
UINFO(9," UNDERBLK "<<*it<<endl);
if ((*it)->name() == nodep->name()) {
beginp = *it;
break;
}
}
//if (debug()>=9) { UINFO(0,"\n"); beginp->dumpTree(cout," labeli: "); }
if (!beginp) { nodep->v3error("disable isn't underneath a begin with name: "<<nodep->name()); }
else {
// Jump to the end of the named begin
AstJumpLabel* labelp = findAddLabel(beginp, false);
nodep->addNextHere(new AstJumpGo(nodep->fileline(), labelp));
}
nodep->unlinkFrBack(); pushDeletep(nodep); nodep=NULL;
//if (debug()>=9) { UINFO(0,"\n"); beginp->dumpTree(cout," labelo: "); }
}
virtual void visit(AstVarRef* nodep, AstNUser*) {
if (m_loopInc && nodep->varp()) nodep->varp()->usedLoopIdx(true);
}