From d0c96328833127284574bfef26f96aa2e4afc91a Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Tue, 26 Sep 2017 18:29:42 -0700
Subject: Specialized double sha256 for 64 byte inputs

---
 src/bench/crypto_hash.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/bench')

diff --git a/src/bench/crypto_hash.cpp b/src/bench/crypto_hash.cpp
index adb69bc6c3..7d907eaf10 100644
--- a/src/bench/crypto_hash.cpp
+++ b/src/bench/crypto_hash.cpp
@@ -52,6 +52,14 @@ static void SHA256_32b(benchmark::State& state)
     }
 }
 
+static void SHA256D64_1024(benchmark::State& state)
+{
+    std::vector<uint8_t> in(64 * 1024, 0);
+    while (state.KeepRunning()) {
+        SHA256D64(in.data(), in.data(), 1024);
+    }
+}
+
 static void SHA512(benchmark::State& state)
 {
     uint8_t hash[CSHA512::OUTPUT_SIZE];
@@ -94,5 +102,6 @@ BENCHMARK(SHA512, 330);
 
 BENCHMARK(SHA256_32b, 4700 * 1000);
 BENCHMARK(SipHash_32b, 40 * 1000 * 1000);
+BENCHMARK(SHA256D64_1024, 7400);
 BENCHMARK(FastRandom_32bit, 110 * 1000 * 1000);
 BENCHMARK(FastRandom_1bit, 440 * 1000 * 1000);
-- 
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