================
@@ -4014,5 +4016,33 @@ template <> struct
llvm::DenseMapInfo<llvm::FoldingSetNodeID> {
return LHS == RHS;
}
};
+// The empty/tombstone keys have a null Data, which no interned ref has, so
+// isEqual guards against comparing through their null pointer.
+template <> struct llvm::DenseMapInfo<llvm::FoldingSetNodeIDRef> {
+ static FoldingSetNodeIDRef getEmptyKey() {
+ return FoldingSetNodeIDRef(nullptr, 0);
+ }
+ static FoldingSetNodeIDRef getTombstoneKey() {
+ return FoldingSetNodeIDRef(nullptr, 1);
+ }
----------------
zwuis wrote:
Unused functions.
https://github.com/llvm/llvm-project/pull/218278
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