eed5f06ae8
This patch adds a new set of randomized conformance tests for single-precision bivariate math functions. The functions included in this set were selected based on the following criteria: - An implementation exists in `libc/src/math/generic` (i.e., it is not just a wrapper around a compiler built-in). - The corresponding LLVM CPU libm implementation is correctly rounded. - The function is listed in Table 65 of the OpenCL C Specification v3.0.19.
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file contains the conformance test of the powf function.
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///
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//===----------------------------------------------------------------------===//
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#include "mathtest/CommandLineExtras.hpp"
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#include "mathtest/IndexedRange.hpp"
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#include "mathtest/RandomGenerator.hpp"
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#include "mathtest/RandomState.hpp"
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#include "mathtest/TestConfig.hpp"
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#include "mathtest/TestRunner.hpp"
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#include "llvm/ADT/StringRef.h"
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#include <cstdlib>
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#include <math.h>
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static inline float powfRoundedExponent(float Base, float Exponent) {
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return powf(Base, roundf(Exponent));
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}
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namespace mathtest {
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template <> struct FunctionConfig<powf> {
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static constexpr llvm::StringRef Name = "powf (real exponents)";
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static constexpr llvm::StringRef KernelName = "powfKernel";
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// Source: The Khronos Group, The OpenCL C Specification v3.0.19, Sec. 7.4,
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// Table 65, Khronos Registry [July 10, 2025].
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static constexpr uint64_t UlpTolerance = 16;
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};
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template <> struct FunctionConfig<powfRoundedExponent> {
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static constexpr llvm::StringRef Name = "powf (integer exponents)";
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static constexpr llvm::StringRef KernelName = "powfRoundedExponentKernel";
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// Source: The Khronos Group, The OpenCL C Specification v3.0.19, Sec. 7.4,
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// Table 65, Khronos Registry [July 10, 2025].
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static constexpr uint64_t UlpTolerance = 16;
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};
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} // namespace mathtest
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int main(int argc, const char **argv) {
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llvm::cl::ParseCommandLineOptions(argc, argv,
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"Conformance test of the powf function");
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using namespace mathtest;
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uint64_t Size = 1ULL << 32;
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IndexedRange<float> RangeX;
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IndexedRange<float> RangeY;
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RandomGenerator<float, float> Generator0(SeedTy{42}, Size, RangeX, RangeY);
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RandomGenerator<float, float> Generator1(SeedTy{51}, Size, RangeX, RangeY);
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const auto Configs = cl::getTestConfigs();
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const llvm::StringRef DeviceBinaryDir = DEVICE_BINARY_DIR;
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const bool IsVerbose = cl::IsVerbose;
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bool RealExponentsPassed =
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runTests<powf>(Generator0, Configs, DeviceBinaryDir, IsVerbose);
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bool IntegerExponentsPassed = runTests<powfRoundedExponent>(
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Generator1, Configs, DeviceBinaryDir, IsVerbose);
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return (RealExponentsPassed && IntegerExponentsPassed) ? EXIT_SUCCESS
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: EXIT_FAILURE;
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}
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