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Merge "Add expf and exp2f benchmark"

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Treehugger Robot 2018-06-20 19:43:06 +00:00 committed by Gerrit Code Review
commit 5fbda0ddb4
2 changed files with 2465 additions and 1 deletions
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2416
benchmarks/expf_input.cpp Normal file
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50
benchmarks/math_benchmark.cpp
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@ -23,7 +23,6 @@
static const double values[] = { 1234.0, nan(""), HUGE_VAL, 0.0 };
static const char* names[] = { "1234.0", "nan", "HUGE_VAL", "0.0" };
static void SetLabel(benchmark::State& state) {
state.SetLabel(names[state.range(0)]);
}
@ -31,6 +30,9 @@ static void SetLabel(benchmark::State& state) {
// Avoid optimization.
volatile double d;
volatile double v;
volatile float f;
static float zero = 0.0f;
static void BM_math_sqrt(benchmark::State& state) {
d = 0.0;
@ -230,3 +232,49 @@ static void BM_math_sincos(benchmark::State& state) {
}
}
BIONIC_BENCHMARK(BM_math_sincos);
#include "expf_input.cpp"
static void BM_math_expf_speccpu2017(benchmark::State& state) {
f = 0.0;
auto cin = expf_input.cbegin();
for (auto _ : state) {
f = expf(*cin);
if (++cin == expf_input.cend())
cin = expf_input.cbegin();
}
}
BIONIC_BENCHMARK(BM_math_expf_speccpu2017);
static void BM_math_expf_speccpu2017_latency(benchmark::State& state) {
f = 0.0;
auto cin = expf_input.cbegin();
for (auto _ : state) {
f = expf(f * zero + *cin);
if (++cin == expf_input.cend())
cin = expf_input.cbegin();
}
}
BIONIC_BENCHMARK(BM_math_expf_speccpu2017_latency);
static void BM_math_exp2f_speccpu2017(benchmark::State& state) {
f = 0.0;
auto cin = expf_input.cbegin();
for (auto _ : state) {
f = exp2f(*cin);
if (++cin == expf_input.cend())
cin = expf_input.cbegin();
}
}
BIONIC_BENCHMARK(BM_math_exp2f_speccpu2017);
static void BM_math_exp2f_speccpu2017_latency(benchmark::State& state) {
f = 0.0;
auto cin = expf_input.cbegin();
for (auto _ : state) {
f = exp2f(f * zero + *cin);
if (++cin == expf_input.cend())
cin = expf_input.cbegin();
}
}
BIONIC_BENCHMARK(BM_math_exp2f_speccpu2017_latency);