================
@@ -493,8 +493,11 @@ void PthreadLockChecker::AcquireLockAux(const CallEvent
&Call,
default:
llvm_unreachable("Unknown tryLock locking semantics");
}
- assert(lockFail && lockSucc);
- C.addTransition(lockFail);
+ // The state where the lock failed can be infeasible if the constraint
+ // solver only now discovers a contradiction in the accumulated
+ // constraints; only take that transition when it is feasible.
----------------
steakhal wrote:
The fact that the repro doesn't crash on trunk also adds to this theory.
https://github.com/llvm/llvm-project/pull/210912
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