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Support unique0; track internally with new attributes

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This commit is contained in:
Wilson Snyder
2010-12-26 08:09:25 -05:00
parent 3e4e8feb29
commit e94fc1305b
7 changed files with 62 additions and 18 deletions
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src/V3Assert.cpp
+4 -3
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@@ -182,7 +182,7 @@ private:
for (AstCaseItem* itemp = nodep->itemsp(); itemp; itemp=itemp->nextp()->castCaseItem()) {
if (itemp->isDefault()) has_default=true;
}
if (nodep->fullPragma()) {
if (nodep->fullPragma() || nodep->priorityPragma()) {
// Simply need to add a default if there isn't one already
m_statAsFull++;
if (!has_default) {
@@ -190,7 +190,7 @@ private:
newFireAssert(nodep, "synthesis full_case, but non-match found")));
}
}
if (nodep->parallelPragma()) {
if (nodep->parallelPragma() || nodep->uniquePragma() || nodep->unique0Pragma()) {
// Need to check that one, and only one of the case items match at any moment
// If there's a default, we allow none to match, else exactly one must match
m_statAsFull++;
@@ -207,7 +207,8 @@ private:
else propp = onep;
}
}
AstNode* ohot = (has_default
bool allow_none = has_default || nodep->unique0Pragma();
AstNode* ohot = (allow_none
? (new AstOneHot0(nodep->fileline(), propp))->castNode()
: (new AstOneHot (nodep->fileline(), propp))->castNode());
AstIf* ifp = new AstIf (nodep->fileline(),