1 files changed, 13 insertions, 0 deletions
diff --git a/absl/hash/internal/spy_hash_state.h b/absl/hash/internal/spy_hash_state.h
index c4cc8d07337c..05c7cafeb0ee 100644
--- a/absl/hash/internal/spy_hash_state.h
+++ b/absl/hash/internal/spy_hash_state.h
@@ -146,6 +146,19 @@ class SpyHashStateImpl : public HashStateBase<SpyHashStateImpl<T>> {
   static SpyHashStateImpl combine_contiguous(SpyHashStateImpl hash_state,
                                              const unsigned char* begin,
                                              size_t size) {
+    const size_t large_chunk_stride = PiecewiseChunkSize();
+    if (size > large_chunk_stride) {
+      // Combining a large contiguous buffer must have the same effect as
+      // doing it piecewise by the stride length, followed by the (possibly
+      // empty) remainder.
+      while (size >= large_chunk_stride) {
+        hash_state = SpyHashStateImpl::combine_contiguous(
+            std::move(hash_state), begin, large_chunk_stride);
+        begin += large_chunk_stride;
+        size -= large_chunk_stride;
+      }
+    }
+
     hash_state.hash_representation_.emplace_back(
         reinterpret_cast<const char*>(begin), size);
     return hash_state;