primOpStrictness PutMVarOp = ([wwPrim, wwLazy, wwPrim], False)
-primOpStrictness CatchOp = ([wwStrict, wwLazy, wwPrim], False)
+primOpStrictness CatchOp = ([wwLazy, wwLazy, wwPrim], False)
primOpStrictness RaiseOp = ([wwLazy], True) -- NB: True => result is bottom
primOpStrictness BlockAsyncExceptionsOp = ([wwLazy], False)
primOpStrictness UnblockAsyncExceptionsOp = ([wwLazy], False)