diff --git a/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cc b/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cc
index 89b0e1544732..01d5bfa675fe 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cc
@@ -198,7 +198,8 @@ static T AtomicFetchXor(ThreadState *thr, uptr pc, volatile T *a, T v,
 
 template<typename T>
 static bool AtomicCAS(ThreadState *thr, uptr pc,
-    volatile T *a, T *c, T v, morder mo) {
+    volatile T *a, T *c, T v, morder mo, morder fmo) {
+  (void)fmo;
   if (IsReleaseOrder(mo))
     Release(thr, pc, (uptr)a);
   T cc = *c;
@@ -213,8 +214,8 @@ static bool AtomicCAS(ThreadState *thr, uptr pc,
 
 template<typename T>
 static T AtomicCAS(ThreadState *thr, uptr pc,
-    volatile T *a, T c, T v, morder mo) {
-  AtomicCAS(thr, pc, a, &c, v, mo);
+    volatile T *a, T c, T v, morder mo, morder fmo) {
+  AtomicCAS(thr, pc, a, &c, v, mo, fmo);
   return c;
 }
 
@@ -351,62 +352,62 @@ a64 __tsan_atomic64_fetch_xor(volatile a64 *a, a64 v, morder mo) {
 }
 
 int __tsan_atomic8_compare_exchange_strong(volatile a8 *a, a8 *c, a8 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic16_compare_exchange_strong(volatile a16 *a, a16 *c, a16 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic32_compare_exchange_strong(volatile a32 *a, a32 *c, a32 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic64_compare_exchange_strong(volatile a64 *a, a64 *c, a64 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic8_compare_exchange_weak(volatile a8 *a, a8 *c, a8 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic16_compare_exchange_weak(volatile a16 *a, a16 *c, a16 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic32_compare_exchange_weak(volatile a32 *a, a32 *c, a32 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 int __tsan_atomic64_compare_exchange_weak(volatile a64 *a, a64 *c, a64 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 a8 __tsan_atomic8_compare_exchange_val(volatile a8 *a, a8 c, a8 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 a16 __tsan_atomic16_compare_exchange_val(volatile a16 *a, a16 c, a16 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 a32 __tsan_atomic32_compare_exchange_val(volatile a32 *a, a32 c, a32 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 a64 __tsan_atomic64_compare_exchange_val(volatile a64 *a, a64 c, a64 v,
-    morder mo) {
-  SCOPED_ATOMIC(CAS, a, c, v, mo);
+    morder mo, morder fmo) {
+  SCOPED_ATOMIC(CAS, a, c, v, mo, fmo);
 }
 
 void __tsan_atomic_thread_fence(morder mo) {
diff --git a/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.h b/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.h
index b8d81af49312..2c1ce2e2fa30 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.h
+++ b/compiler-rt/lib/tsan/rtl/tsan_interface_atomic.h
@@ -106,35 +106,43 @@ __tsan_atomic64 __tsan_atomic64_fetch_xor(volatile __tsan_atomic64 *a,
     __tsan_atomic64 v, __tsan_memory_order mo);
 
 int __tsan_atomic8_compare_exchange_weak(volatile __tsan_atomic8 *a,
-    __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo);
+    __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 int __tsan_atomic16_compare_exchange_weak(volatile __tsan_atomic16 *a,
-    __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo);
+    __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 int __tsan_atomic32_compare_exchange_weak(volatile __tsan_atomic32 *a,
-    __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo);
+    __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 int __tsan_atomic64_compare_exchange_weak(volatile __tsan_atomic64 *a,
-    __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo);
+    __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 
 int __tsan_atomic8_compare_exchange_strong(volatile __tsan_atomic8 *a,
-    __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo);
+    __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 int __tsan_atomic16_compare_exchange_strong(volatile __tsan_atomic16 *a,
-    __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo);
+    __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 int __tsan_atomic32_compare_exchange_strong(volatile __tsan_atomic32 *a,
-    __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo);
+    __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 int __tsan_atomic64_compare_exchange_strong(volatile __tsan_atomic64 *a,
-    __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo);
+    __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo,
+    __tsan_memory_order fail_mo);
 
 __tsan_atomic8 __tsan_atomic8_compare_exchange_val(
     volatile __tsan_atomic8 *a, __tsan_atomic8 c, __tsan_atomic8 v,
-    __tsan_memory_order mo);
+    __tsan_memory_order mo, __tsan_memory_order fail_mo);
 __tsan_atomic16 __tsan_atomic16_compare_exchange_val(
     volatile __tsan_atomic16 *a, __tsan_atomic16 c, __tsan_atomic16 v,
-    __tsan_memory_order mo);
+    __tsan_memory_order mo, __tsan_memory_order fail_mo);
 __tsan_atomic32 __tsan_atomic32_compare_exchange_val(
     volatile __tsan_atomic32 *a, __tsan_atomic32 c, __tsan_atomic32 v,
-    __tsan_memory_order mo);
+    __tsan_memory_order mo, __tsan_memory_order fail_mo);
 __tsan_atomic64 __tsan_atomic64_compare_exchange_val(
     volatile __tsan_atomic64 *a, __tsan_atomic64 c, __tsan_atomic64 v,
-    __tsan_memory_order mo);
+    __tsan_memory_order mo, __tsan_memory_order fail_mo);
 
 void __tsan_atomic_thread_fence(__tsan_memory_order mo);
 void __tsan_atomic_signal_fence(__tsan_memory_order mo);