1 files changed, 51 insertions, 2 deletions

diff --git a/third_party/abseil-cpp/absl/hash/BUILD.bazel b/third_party/abseil-cpp/absl/hash/BUILD.bazel
index ffe8c294a0..f0640d34e4 100644
--- a/third_party/abseil-cpp/absl/hash/BUILD.bazel
+++ b/third_party/abseil-cpp/absl/hash/BUILD.bazel
@@ -14,7 +14,6 @@
 # limitations under the License.
 #
 
-load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
 load(
     "//absl:copts/configure_copts.bzl",
     "ABSL_DEFAULT_COPTS",
@@ -24,7 +23,7 @@ load(
 
 package(default_visibility = ["//visibility:public"])
 
-licenses(["notice"])  # Apache 2.0
+licenses(["notice"])
 
 cc_library(
     name = "hash",
@@ -37,6 +36,8 @@ cc_library(
     linkopts = ABSL_DEFAULT_LINKOPTS,
     deps = [
         ":city",
+        ":low_level_hash",
+        "//absl/base:config",
         "//absl/base:core_headers",
         "//absl/base:endian",
         "//absl/container:fixed_array",
@@ -76,10 +77,30 @@ cc_test(
         "//absl/container:flat_hash_set",
         "//absl/meta:type_traits",
         "//absl/numeric:int128",
+        "//absl/strings:cord_test_helpers",
         "@com_google_googletest//:gtest_main",
     ],
 )
 
+cc_binary(
+    name = "hash_benchmark",
+    testonly = 1,
+    srcs = ["hash_benchmark.cc"],
+    copts = ABSL_TEST_COPTS,
+    linkopts = ABSL_DEFAULT_LINKOPTS,
+    tags = ["benchmark"],
+    visibility = ["//visibility:private"],
+    deps = [
+        ":hash",
+        "//absl/base:core_headers",
+        "//absl/random",
+        "//absl/strings",
+        "//absl/strings:cord",
+        "//absl/strings:cord_test_helpers",
+        "@com_github_google_benchmark//:benchmark_main",
+    ],
+)
+
 cc_library(
     name = "spy_hash_state",
     testonly = 1,
@@ -119,3 +140,31 @@ cc_test(
         "@com_google_googletest//:gtest_main",
     ],
 )
+
+cc_library(
+    name = "low_level_hash",
+    srcs = ["internal/low_level_hash.cc"],
+    hdrs = ["internal/low_level_hash.h"],
+    copts = ABSL_DEFAULT_COPTS,
+    linkopts = ABSL_DEFAULT_LINKOPTS,
+    visibility = ["//visibility:private"],
+    deps = [
+        "//absl/base:config",
+        "//absl/base:endian",
+        "//absl/numeric:bits",
+        "//absl/numeric:int128",
+    ],
+)
+
+cc_test(
+    name = "low_level_hash_test",
+    srcs = ["internal/low_level_hash_test.cc"],
+    copts = ABSL_TEST_COPTS,
+    linkopts = ABSL_DEFAULT_LINKOPTS,
+    visibility = ["//visibility:private"],
+    deps = [
+        ":low_level_hash",
+        "//absl/strings",
+        "@com_google_googletest//:gtest_main",
+    ],
+)