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-rw-r--r--absl/container/internal/raw_hash_set.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/absl/container/internal/raw_hash_set.cc b/absl/container/internal/raw_hash_set.cc
index 687bcb8a..61bdb773 100644
--- a/absl/container/internal/raw_hash_set.cc
+++ b/absl/container/internal/raw_hash_set.cc
@@ -23,6 +23,8 @@ namespace absl {
ABSL_NAMESPACE_BEGIN
namespace container_internal {
+// A single block of empty control bytes for tables without any slots allocated.
+// This enables removing a branch in the hot path of find().
alignas(16) ABSL_CONST_INIT ABSL_DLL const ctrl_t kEmptyGroup[16] = {
ctrl_t::kSentinel, ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty,
ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty, ctrl_t::kEmpty,