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//===-- GPU benchmark for logf --------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "benchmarks/gpu/LibcGpuBenchmark.h"
#include "benchmarks/gpu/Random.h"
#include "hdr/stdint_proxy.h"
#include "src/__support/sign.h"
#include "src/math/logf.h"
#if defined(NVPTX_MATH_FOUND) || defined(AMDGPU_MATH_FOUND)
#include "platform.h"
#endif
#define RANDOM_INPUT_UniformExponent(T, Func, Min, Max, N) \
[](uint32_t call_index) { \
using namespace LIBC_NAMESPACE::benchmarks; \
\
const UniformExponent<T> dist(Min, Max, LIBC_NAMESPACE::Sign::POS); \
return MathPerf<T>::template run_throughput<N>(Func, dist, call_index); \
}
#define RANDOM_INPUT_UniformLinear(T, Func, Min, Max, N) \
[](uint32_t call_index) { \
using namespace LIBC_NAMESPACE::benchmarks; \
\
const UniformLinear<T> dist(Min, Max); \
return MathPerf<T>::template run_throughput<N>(Func, dist, call_index); \
}
#define BENCH(T, Name, Func, Dist, Min, Max) \
SINGLE_WAVE_BENCHMARK(LlvmLibcLogfGpuBenchmark, Name##_1, \
RANDOM_INPUT_##Dist(T, Func, Min, Max, 1)); \
SINGLE_WAVE_BENCHMARK(LlvmLibcLogfGpuBenchmark, Name##_128, \
RANDOM_INPUT_##Dist(T, Func, Min, Max, 128)); \
SINGLE_WAVE_BENCHMARK(LlvmLibcLogfGpuBenchmark, Name##_1024, \
RANDOM_INPUT_##Dist(T, Func, Min, Max, 1024)); \
SINGLE_WAVE_BENCHMARK(LlvmLibcLogfGpuBenchmark, Name##_4096, \
RANDOM_INPUT_##Dist(T, Func, Min, Max, 4096))
using LIBC_NAMESPACE::logf;
static constexpr float INV_E = 0x1.78b56362cef38p-2f; // exp(-1.0)
static constexpr float E = 0x1.5bf0a8b145769p+1f; // exp(+1.0)
BENCH(float, LogfSubnormal, logf, UniformExponent, -126, -126);
BENCH(float, LogfAroundOne, logf, UniformLinear, INV_E, E);
BENCH(float, LogfMedMag, logf, UniformExponent, -10, 10);
BENCH(float, LogfNormal, logf, UniformExponent, -125, 127);
#ifdef NVPTX_MATH_FOUND
BENCH(float, NvLogfSubnormal, __nv_logf, UniformExponent, -126, -126);
BENCH(float, NvLogfAroundOne, __nv_logf, UniformLinear, INV_E, E);
BENCH(float, NvLogfMedMag, __nv_logf, UniformExponent, -10, 10);
BENCH(float, NvLogfNormal, __nv_logf, UniformExponent, -125, 127);
#endif
#ifdef AMDGPU_MATH_FOUND
BENCH(float, AmdLogfSubnormal, __ocml_log_f32, UniformExponent, -126, -126);
BENCH(float, AmdLogfAroundOne, __ocml_log_f32, UniformLinear, INV_E, E);
BENCH(float, AmdLogfMedMag, __ocml_log_f32, UniformExponent, -10, 10);
BENCH(float, AmdLogfNormal, __ocml_log_f32, UniformExponent, -125, 127);
#endif
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