commit 24c0eb1f3091f4fcb6e4cce04eda093f5bcc373a
author Treehugger Robot <treehugger-gerrit@google.com> Thu Aug 09 00:33:42 2018 +0000
committer Gerrit Code Review <noreply-gerritcodereview@google.com> Thu Aug 09 00:33:42 2018 +0000
tree 6c8657bb174b6188c335cb9a6273504299019fe4
parent 099835ad2a7c35ab9f2825b66d18742c7fcbd9be
parent 56f4511c39589a6ac6957675e9d2feb212dfb708

Merge "Add log and log2 benchmark"

benchmarks/math_benchmark.cpp

diff --git a/benchmarks/math_benchmark.cpp b/benchmarks/math_benchmark.cpp
index 8c758ac..7d258f7 100644
--- a/benchmarks/math_benchmark.cpp
+++ b/benchmarks/math_benchmark.cpp
@@ -355,6 +355,9 @@
 
 #include "logf_input.cpp"
 
+static const std::vector<double> log_input (logf_input.begin(),
+                                            logf_input.end());
+
 static void BM_math_logf_speccpu2017(benchmark::State& state) {
   f = 0.0;
   auto cin = logf_input.cbegin();
@@ -377,6 +380,28 @@
 }
 BIONIC_BENCHMARK(BM_math_logf_speccpu2017_latency);
 
+static void BM_math_log_speccpu2017(benchmark::State& state) {
+  d = 0.0;
+  auto cin = log_input.cbegin();
+  for (auto _ : state) {
+    d = log(*cin);
+    if (++cin == log_input.cend())
+      cin = log_input.cbegin();
+  }
+}
+BIONIC_BENCHMARK(BM_math_log_speccpu2017);
+
+static void BM_math_log_speccpu2017_latency(benchmark::State& state) {
+  d = 0.0;
+  auto cin = log_input.cbegin();
+  for (auto _ : state) {
+    d = log(d * zerod + *cin);
+    if (++cin == log_input.cend())
+      cin = log_input.cbegin();
+  }
+}
+BIONIC_BENCHMARK(BM_math_log_speccpu2017_latency);
+
 static void BM_math_log2f_speccpu2017(benchmark::State& state) {
   f = 0.0;
   auto cin = logf_input.cbegin();
@@ -388,6 +413,28 @@
 }
 BIONIC_BENCHMARK(BM_math_log2f_speccpu2017);
 
+static void BM_math_log2_speccpu2017_latency(benchmark::State& state) {
+  d = 0.0;
+  auto cin = log_input.cbegin();
+  for (auto _ : state) {
+    d = log2(d * zerod + *cin);
+    if (++cin == log_input.cend())
+      cin = log_input.cbegin();
+  }
+}
+BIONIC_BENCHMARK(BM_math_log2_speccpu2017_latency);
+
+static void BM_math_log2_speccpu2017(benchmark::State& state) {
+  d = 0.0;
+  auto cin = log_input.cbegin();
+  for (auto _ : state) {
+    d = log2(*cin);
+    if (++cin == log_input.cend())
+      cin = log_input.cbegin();
+  }
+}
+BIONIC_BENCHMARK(BM_math_log2_speccpu2017);
+
 static void BM_math_log2f_speccpu2017_latency(benchmark::State& state) {
   f = 0.0;
   auto cin = logf_input.cbegin();