Add memcmp to aarch64 imports

But still run it to account for the version potentially increasing

ConflictSet.cpp

@@ -5128,9 +5128,6 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
     assert(writeContext.accum.entries_erased == 0);
     assert(writeContext.accum.entries_inserted == 0);
 
-    // Queue up some gc work just for (potentially) increasing the version
-    ++keyUpdates;
-
     if (oldestExtantVersion < writeVersion - kMaxCorrectVersionWindow)
         [[unlikely]] {
       if (writeVersion > newestVersionFullPrecision + kNominalVersionWindow) {
@@ -5187,10 +5184,11 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
 
     writeContext.releaseDeferred();
 
-    // Run gc at least 200% the rate we're inserting entries
+    // Run gc at least 200% the rate we're inserting entries, and at least run
+    // some gc just for potentially increasing the version.
     keyUpdates += std::max<int64_t>(writeContext.accum.entries_inserted -
                                         writeContext.accum.entries_erased,
-                                    0) *
+                                    1) *
                   2;
 
     point_writes_total.add(writeContext.accum.point_writes);

aarch64-symbol-imports.txt

@@ -5,6 +5,7 @@ __stack_chk_guard@GLIBC_2.17
 abort@GLIBC_2.17
 free@GLIBC_2.17
 malloc@GLIBC_2.17
+memcmp@GLIBC_2.17
 memcpy@GLIBC_2.17
 memmove@GLIBC_2.17
 memset@GLIBC_2.17