[compiler-rt] [TSan] Add interceptor for os_unfair_lock_lock_with_flags (PR #153815)

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp,c -- compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp compiler-rt/test/tsan/Darwin/os_unfair_lock.c
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp b/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp
index 91567ac55..7ab232ba0 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp
+++ b/compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp
@@ -282,9 +282,9 @@ TSAN_INTERCEPTOR(void, os_unfair_lock_lock, os_unfair_lock_t lock) {
 }
 
 // os_unfair_lock_lock_with_flags was introduced in macOS 15
-#if defined(__MAC_15_0)
-#  pragma clang diagnostic push
-#  pragma clang diagnostic ignored "-Wunguarded-availability-new"
+#  if defined(__MAC_15_0)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wunguarded-availability-new"
 // We're just intercepting this - if it doesn't exist on the platform, then the
 // process shouldn't have called it in the first place.
 TSAN_INTERCEPTOR(void, os_unfair_lock_lock_with_flags, os_unfair_lock_t lock,
@@ -296,8 +296,8 @@ TSAN_INTERCEPTOR(void, os_unfair_lock_lock_with_flags, os_unfair_lock_t lock,
   REAL(os_unfair_lock_lock_with_flags)(lock, flags);
   Acquire(thr, pc, (uptr)lock);
 }
-#  pragma clang diagnostic pop
-#endif
+#    pragma clang diagnostic pop
+#  endif
 
 TSAN_INTERCEPTOR(void, os_unfair_lock_lock_with_options, os_unfair_lock_t lock,
                  u32 options) {
diff --git a/compiler-rt/test/tsan/Darwin/os_unfair_lock.c b/compiler-rt/test/tsan/Darwin/os_unfair_lock.c
index 986c37127..7b9ba4284 100644
--- a/compiler-rt/test/tsan/Darwin/os_unfair_lock.c
+++ b/compiler-rt/test/tsan/Darwin/os_unfair_lock.c
@@ -17,7 +17,8 @@ void *Thread(void *a) {
 }
 
 void *ThreadWithFlags(void *a) {
-  if (__builtin_available(iOS 18.0, macOS 15.0, tvOS 18.0, visionOS 2.0, watchOS 11.0, *))
+  if (__builtin_available(iOS 18.0, macOS 15.0, tvOS 18.0, visionOS 2.0,
+                          watchOS 11.0, *))
     os_unfair_lock_lock_with_flags(&lock, OS_UNFAIR_LOCK_FLAG_ADAPTIVE_SPIN);
   else
     os_unfair_lock_lock(&lock);
@@ -35,11 +36,12 @@ int main() {
   pthread_join(t2, NULL);
   fprintf(stderr, "global_variable = %ld\n", global_variable);
 
-// CHECK: global_variable = 2
+  // CHECK: global_variable = 2
 
   void *(*func)(void *) = Thread;
   char flags_available = 0;
-  if (__builtin_available(iOS 18.0, macOS 15.0, tvOS 18.0, visionOS 2.0, watchOS 11.0, *)) {
+  if (__builtin_available(iOS 18.0, macOS 15.0, tvOS 18.0, visionOS 2.0,
+                          watchOS 11.0, *)) {
     func = ThreadWithFlags;
     flags_available = 1;
   }
@@ -48,7 +50,8 @@ int main() {
   pthread_create(&t2, NULL, func, NULL);
   pthread_join(t1, NULL);
   pthread_join(t2, NULL);
-  fprintf(stderr, "global_variable = %ld, os_unfair_lock_lock_with_flags %savailable\n", 
+  fprintf(stderr,
+          "global_variable = %ld, os_unfair_lock_lock_with_flags %savailable\n",
           global_variable, flags_available ? "" : "un");
 }
 

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https://github.com/llvm/llvm-project/pull/153815