================
@@ -239,6 +262,65 @@ void
DataflowAnalysisContext::addTransitiveFlowConditionConstraints(
}
}
+static void getReferencedAtoms(const Formula &F,
+ llvm::DenseSet<dataflow::Atom> &Refs) {
+ switch (F.kind()) {
+ case Formula::AtomRef:
+ Refs.insert(F.getAtom());
+ break;
+ case Formula::Literal:
+ break;
+ case Formula::Not:
+ getReferencedAtoms(*F.operands()[0], Refs);
+ break;
+ case Formula::And:
+ case Formula::Or:
+ case Formula::Implies:
+ case Formula::Equal:
+ ArrayRef<const Formula *> Operands = F.operands();
+ getReferencedAtoms(*Operands[0], Refs);
+ getReferencedAtoms(*Operands[1], Refs);
+ break;
+ }
+}
+
+SimpleLogicalContext DataflowAnalysisContext::exportLogicalContext(
+ llvm::DenseSet<dataflow::Atom> TargetTokens) const {
+ SimpleLogicalContext LC;
+
+ if (Invariant != nullptr) {
+ LC.Invariant = Invariant;
+ getReferencedAtoms(*Invariant, TargetTokens);
+ }
+
+ llvm::DenseSet<dataflow::Atom> ReachableTokens =
+ getTransitiveClosure(TargetTokens);
+
+ for (dataflow::Atom Token : ReachableTokens) {
+ // Only process the token if it is constrained. Unconstrained tokens don't
+ // have dependencies.
+ auto ConstraintsIt = FlowConditionConstraints.find(Token);
+ if (ConstraintsIt == FlowConditionConstraints.end())
+ continue;
+ LC.TokenDefs[Token] = ConstraintsIt->second;
----------------
usx95 wrote:
This looks resolved now. Thanks.
https://github.com/llvm/llvm-project/pull/152487
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