// Copyright 2020, VIXL authors // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // * Neither the name of ARM Limited nor the names of its contributors may be // used to endorse or promote products derived from this software without // specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "examples.h" using namespace vixl; using namespace vixl::aarch64; // Demonstrate the use of VIXL's CPU feature detection, printing the features // that VIXL detects. #ifndef TEST_EXAMPLES int main() { // Simple native deployments should initialise CPU features using // `InferFromOS()`. If not on an AArch64 host, this returns nothing. std::cout << "==== CPUFeatures::InferFromOS() ====\n"; std::cout << CPUFeatures::InferFromOS() << "\n"; // VIXL assumes support for FP, NEON and CRC32 by default. These features were // implemented before the CPUFeatures mechanism. std::cout << "==== CPUFeatures::AArch64LegacyBaseline() ====\n"; std::cout << CPUFeatures::AArch64LegacyBaseline() << "\n"; // Retrieve a list of all supported CPU features. std::cout << "==== CPUFeatures::All() ====\n"; std::cout << CPUFeatures::All() << "\n"; return 0; } #endif