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-rw-r--r--tensorflow/core/lib/hash/hash.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/tensorflow/core/lib/hash/hash.h b/tensorflow/core/lib/hash/hash.h
index 4d3cb9cc9d..3c71e7d6cc 100644
--- a/tensorflow/core/lib/hash/hash.h
+++ b/tensorflow/core/lib/hash/hash.h
@@ -38,6 +38,10 @@ inline uint64 Hash64(const string& str) {
return Hash64(str.data(), str.size());
}
+inline uint64 Hash64Combine(uint64 a, uint64 b) {
+ return a ^ (b + 0x9e3779b97f4a7800ULL + (a << 10) + (a >> 4));
+}
+
} // namespace tensorflow
#endif // TENSORFLOW_LIB_HASH_HASH_H_