diff --git a/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift b/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift
index 00ef1fa50ec4f..e912acb492813 100644
--- a/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift
+++ b/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift
@@ -4,6 +4,9 @@
 // REQUIRES: concurrency
 // REQUIRES: distributed
 
+// FIXME(distributed): test fails on optimized build: OSS - Swift (Tools Opt+No Assert,  Stdlib Opt+DebInfo, Test Simulator) - macOS
+// REQUIRES: radar97074020
+
 import Distributed
 import FakeDistributedActorSystems
 
diff --git a/test/StringProcessing/Parse/forward-slash-regex-skipping-allowed.swift b/test/StringProcessing/Parse/forward-slash-regex-skipping-allowed.swift
index d6ba0a9d6553d..81bb00e06638f 100644
--- a/test/StringProcessing/Parse/forward-slash-regex-skipping-allowed.swift
+++ b/test/StringProcessing/Parse/forward-slash-regex-skipping-allowed.swift
@@ -8,8 +8,10 @@
 
 // Make sure we can skip in all of the below cases.
 
-// We don't appear to output a stats entry when it is 0.
-// CHECK-NOT: {{"Parse.NumFunctionsParsed"}}
+// The printing implementation differs in asserts and no-asserts builds, it will
+// either print `"Parse.NumFunctionsParsed" 0` or not print it at all. Make sure
+// we don't output any non-zero value.
+// CHECK-NOT: {{"Parse.NumFunctionsParsed" [^0]}}
 
 // Balanced `{}`, so okay.
 func a() { / {}/ }