diff --git a/compiler-rt/lib/memprof/memprof_allocator.h b/compiler-rt/lib/memprof/memprof_allocator.h
--- a/compiler-rt/lib/memprof/memprof_allocator.h
+++ b/compiler-rt/lib/memprof/memprof_allocator.h
@@ -69,7 +69,6 @@
 using AllocatorCache = MemprofAllocator::AllocatorCache;
 
 struct MemprofThreadLocalMallocStorage {
-  uptr quarantine_cache[16];
   AllocatorCache allocator_cache;
   void CommitBack();
 
diff --git a/compiler-rt/lib/msan/msan.h b/compiler-rt/lib/msan/msan.h
--- a/compiler-rt/lib/msan/msan.h
+++ b/compiler-rt/lib/msan/msan.h
@@ -296,7 +296,6 @@
 void InitializeInterceptors();
 
 void MsanAllocatorInit();
-void MsanAllocatorThreadFinish();
 void MsanDeallocate(StackTrace *stack, void *ptr);
 
 void *msan_malloc(uptr size, StackTrace *stack);
diff --git a/compiler-rt/lib/msan/msan_allocator.h b/compiler-rt/lib/msan/msan_allocator.h
--- a/compiler-rt/lib/msan/msan_allocator.h
+++ b/compiler-rt/lib/msan/msan_allocator.h
@@ -18,7 +18,6 @@
 namespace __msan {
 
 struct MsanThreadLocalMallocStorage {
-  uptr quarantine_cache[16];
   // Allocator cache contains atomic_uint64_t which must be 8-byte aligned.
   ALIGNED(8) uptr allocator_cache[96 * (512 * 8 + 16)];  // Opaque.
   void CommitBack();