diff --git a/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp b/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
--- a/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
+++ b/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
@@ -152,8 +152,11 @@
 const int SIG_SETMASK = 2;
 #endif
 
-#define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED \
-  (!cur_thread_init()->is_inited)
+// All tsan interceptors check for initialization and/or initialize things
+// as necessary lazily, so we can pretend everything is initialized in this
+// check to avoid double-checking for initialization (this is only necessary for
+// sanitizers that don't handle initialization on common grounds).
+#define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED false
 
 namespace __tsan {
 struct SignalDesc {