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Add toggle coverage

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This commit is contained in:
Wilson Snyder
2008-12-12 15:34:02 -05:00
parent 6b46da0240
commit 77405ddded
26 changed files with 610 additions and 13 deletions
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src/V3Clock.cpp
+20
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@@ -282,6 +282,26 @@ private:
}
nodep->deleteTree(); nodep = NULL;
}
virtual void visit(AstCoverToggle* nodep, AstNUser*) {
//nodep->dumpTree(cout,"ct:");
//COVERTOGGLE(INC, ORIG, CHANGE) ->
// IF(ORIG ^ CHANGE) { INC; CHANGE = ORIG; }
AstNode* incp = nodep->incp()->unlinkFrBack();
AstNode* origp = nodep->origp()->unlinkFrBack();
AstNode* changep = nodep->changep()->unlinkFrBack();
AstIf* newp = new AstIf(nodep->fileline(),
new AstXor(nodep->fileline(),
origp,
changep),
incp, NULL);
// We could add another IF to detect posedges, and only increment if so.
// It's another whole branch though verus a potential memory miss.
// We'll go with the miss.
newp->addIfsp(new AstAssign(nodep->fileline(),
changep->cloneTree(false),
origp->cloneTree(false)));
nodep->replaceWith(newp); nodep->deleteTree(); nodep=NULL;
}
virtual void visit(AstInitial* nodep, AstNUser*) {
AstNode* cmtp = new AstComment(nodep->fileline(), nodep->typeName());
nodep->replaceWith(cmtp);