================
@@ -256,8 +259,12 @@ class JoinedStateBuilder {
// to enable building analyses like computation of dominators that
// initialize the state of each basic block differently.
return {AC.Analysis.typeErasedInitialElement(), AC.InitEnv.fork()};
+
if (All.size() == 1)
- return Owned.empty() ? All.front()->fork() : std::move(Owned.front());
+ // Join the environment with itself so that we can discard unwanted
----------------
ymand wrote:
This change may obviate the value of JoinedStateBuilder altogether, since a key
point was to save on copies. Once we always build a fresh one, I'm not sure the
complexity is doing much anymore. Please double check this.
https://github.com/llvm/llvm-project/pull/72850
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