luke/verilator
1
0
Fork 0
mirror of https://github.com/verilator/verilator.git synced 2026-10-06 10:03:44 +02:00
Code Issues Packages Projects Releases Wiki Activity

Support aliases with more operands (#6501)

Browse Source
This commit is contained in:
Ryszard Rozak
2025-09-29 13:23:51 -04:00
committed by GitHub
parent 5cd8bd0356
commit 09518ee207
14 changed files with 95 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/V3LinkDot.cpp
+11 -8
View File
@@ -2311,15 +2311,18 @@ private:
// No recursion, we don't want to pick up variables
}
void visit(AstAlias* nodep) override { // ScopeVisitor::
// Track aliases; if we get a NODEVARREF(aliased_from)
// we'll need to replace it with a NODEVARREF(aliased_to)
// Track aliases
UINFOTREE(9, nodep, "", "alias");
AstVarRef* const lhsp = VN_AS(nodep->lhsp(), VarRef);
AstVarRef* const rhsp = VN_AS(nodep->rhsp(), VarRef);
AstVarScope* const fromVscp = lhsp->varScopep();
AstVarScope* const toVscp = rhsp->varScopep();
UASSERT_OBJ(fromVscp && toVscp, nodep, "Bad alias scopes");
setAliasVarScope(fromVscp, toVscp);
AstVarScope* aliasVscp = nullptr;
for (AstNode* itemp = nodep->itemsp(); itemp; itemp = itemp->nextp()) {
AstVarScope* const vscp = VN_AS(itemp, VarRef)->varScopep();
UASSERT_OBJ(vscp, nodep, "VarScope unset");
if (aliasVscp) {
setAliasVarScope(aliasVscp, vscp);
} else {
aliasVscp = vscp;
}
}
iterateChildren(nodep);
pushDeletep(nodep->unlinkFrBack());
}