/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <array>
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#include "instruction_set_features.h"
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#include <gtest/gtest.h>
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#ifdef ART_TARGET_ANDROID
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#include <android-base/properties.h>
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#endif
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#include <android-base/logging.h>
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#include <android-base/stringprintf.h>
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namespace art {
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#ifdef ART_TARGET_ANDROID
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using android::base::StringPrintf;
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#if defined(__aarch64__)
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TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyVariant) {
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LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
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#else
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TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyVariant) {
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#endif
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// Take the default set of instruction features from the build.
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std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
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InstructionSetFeatures::FromCppDefines());
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// Read the variant property.
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std::string key = StringPrintf("dalvik.vm.isa.%s.variant", GetInstructionSetString(kRuntimeISA));
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std::string dex2oat_isa_variant = android::base::GetProperty(key, "");
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if (!dex2oat_isa_variant.empty()) {
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// Use features from property to build InstructionSetFeatures and check against build's
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// features.
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std::string error_msg;
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std::unique_ptr<const InstructionSetFeatures> property_features(
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InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
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ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
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EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
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<< "System property features: " << *property_features.get()
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<< "\nFeatures from build: " << *instruction_set_features.get();
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}
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}
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#if defined(__aarch64__)
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TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyString) {
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LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
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#else
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TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyString) {
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#endif
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// Take the default set of instruction features from the build.
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std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
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InstructionSetFeatures::FromCppDefines());
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// Read the variant property.
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std::string variant_key = StringPrintf("dalvik.vm.isa.%s.variant",
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GetInstructionSetString(kRuntimeISA));
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std::string dex2oat_isa_variant = android::base::GetProperty(variant_key, "");
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if (!dex2oat_isa_variant.empty()) {
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// Read the features property.
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std::string features_key = StringPrintf("dalvik.vm.isa.%s.features",
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GetInstructionSetString(kRuntimeISA));
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std::string dex2oat_isa_features = android::base::GetProperty(features_key, "");
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if (!dex2oat_isa_features.empty()) {
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// Use features from property to build InstructionSetFeatures and check against build's
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// features.
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std::string error_msg;
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std::unique_ptr<const InstructionSetFeatures> base_features(
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InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
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ASSERT_TRUE(base_features.get() != nullptr) << error_msg;
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std::unique_ptr<const InstructionSetFeatures> property_features(
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base_features->AddFeaturesFromString(dex2oat_isa_features, &error_msg));
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ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
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EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
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<< "System property features: " << *property_features.get()
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<< "\nFeatures from build: " << *instruction_set_features.get();
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}
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}
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}
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#if defined(__arm__)
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TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromCpuInfo) {
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LOG(WARNING) << "Test disabled due to buggy ARM kernels";
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#else
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TEST(InstructionSetFeaturesTest, FeaturesFromCpuInfo) {
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#endif
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// Take the default set of instruction features from the build.
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std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
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InstructionSetFeatures::FromCppDefines());
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// Check we get the same instruction set features using /proc/cpuinfo.
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std::unique_ptr<const InstructionSetFeatures> cpuinfo_features(
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InstructionSetFeatures::FromCpuInfo());
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EXPECT_TRUE(cpuinfo_features->HasAtLeast(instruction_set_features.get()))
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<< "CPU Info features: " << *cpuinfo_features.get()
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<< "\nFeatures from build: " << *instruction_set_features.get();
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}
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#endif
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#ifndef ART_TARGET_ANDROID
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TEST(InstructionSetFeaturesTest, HostFeaturesFromCppDefines) {
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std::string error_msg;
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std::unique_ptr<const InstructionSetFeatures> default_features(
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InstructionSetFeatures::FromVariant(kRuntimeISA, "default", &error_msg));
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ASSERT_TRUE(error_msg.empty());
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std::unique_ptr<const InstructionSetFeatures> cpp_features(
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InstructionSetFeatures::FromCppDefines());
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EXPECT_TRUE(cpp_features->HasAtLeast(default_features.get()))
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<< "Default variant features: " << *default_features.get()
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<< "\nFeatures from build: " << *cpp_features.get();
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}
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#endif
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#if defined(__arm__)
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TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromHwcap) {
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LOG(WARNING) << "Test disabled due to buggy ARM kernels";
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#else
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TEST(InstructionSetFeaturesTest, FeaturesFromHwcap) {
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#endif
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// Take the default set of instruction features from the build.
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std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
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InstructionSetFeatures::FromCppDefines());
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// Check we get the same instruction set features using AT_HWCAP.
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std::unique_ptr<const InstructionSetFeatures> hwcap_features(
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InstructionSetFeatures::FromHwcap());
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EXPECT_TRUE(hwcap_features->HasAtLeast(instruction_set_features.get()))
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<< "Hwcap features: " << *hwcap_features.get()
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<< "\nFeatures from build: " << *instruction_set_features.get();
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}
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TEST(InstructionSetFeaturesTest, FeaturesFromAssembly) {
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// Take the default set of instruction features from the build.
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std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
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InstructionSetFeatures::FromCppDefines());
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// Check we get the same instruction set features using assembly tests.
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std::unique_ptr<const InstructionSetFeatures> assembly_features(
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InstructionSetFeatures::FromAssembly());
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EXPECT_TRUE(assembly_features->HasAtLeast(instruction_set_features.get()))
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<< "Assembly features: " << *assembly_features.get()
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<< "\nFeatures from build: " << *instruction_set_features.get();
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}
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TEST(InstructionSetFeaturesTest, FeaturesFromRuntimeDetection) {
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if (!InstructionSetFeatures::IsRuntimeDetectionSupported()) {
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EXPECT_EQ(InstructionSetFeatures::FromRuntimeDetection(), nullptr);
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}
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}
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// The instruction set feature string must not contain 'default' together with
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// other feature names.
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//
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// Test that InstructionSetFeatures::AddFeaturesFromString returns nullptr and
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// an error is reported when the value 'default' is specified together
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// with other feature names in an instruction set feature string.
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TEST(InstructionSetFeaturesTest, AddFeaturesFromStringWithDefaultAndOtherNames) {
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std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
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InstructionSetFeatures::FromCppDefines());
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std::vector<std::string> invalid_feature_strings = {
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"a,default",
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"default,a",
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"a,default,b",
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"a,b,default",
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"default,a,b,c",
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"a,b,default,c,d",
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"a, default ",
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" default , a",
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"a, default , b",
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"default,runtime"
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};
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for (const std::string& invalid_feature_string : invalid_feature_strings) {
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std::string error_msg;
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EXPECT_EQ(cpp_defined_features->AddFeaturesFromString(invalid_feature_string, &error_msg),
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nullptr) << " Invalid feature string: '" << invalid_feature_string << "'";
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EXPECT_EQ(error_msg,
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"Specific instruction set feature(s) cannot be used when 'default' is used.");
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}
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}
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// The instruction set feature string must not contain 'runtime' together with
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// other feature names.
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//
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// Test that InstructionSetFeatures::AddFeaturesFromString returns nullptr and
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// an error is reported when the value 'runtime' is specified together
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// with other feature names in an instruction set feature string.
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TEST(InstructionSetFeaturesTest, AddFeaturesFromStringWithRuntimeAndOtherNames) {
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std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
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InstructionSetFeatures::FromCppDefines());
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std::vector<std::string> invalid_feature_strings = {
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"a,runtime",
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"runtime,a",
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"a,runtime,b",
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"a,b,runtime",
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"runtime,a,b,c",
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"a,b,runtime,c,d",
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"a, runtime ",
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" runtime , a",
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"a, runtime , b",
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"runtime,default"
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};
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for (const std::string& invalid_feature_string : invalid_feature_strings) {
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std::string error_msg;
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EXPECT_EQ(cpp_defined_features->AddFeaturesFromString(invalid_feature_string, &error_msg),
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nullptr) << " Invalid feature string: '" << invalid_feature_string << "'";
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EXPECT_EQ(error_msg,
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"Specific instruction set feature(s) cannot be used when 'runtime' is used.");
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}
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}
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// Spaces and multiple commas are ignores in a instruction set feature string.
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//
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// Test that a use of spaces and multiple commas with 'default' and 'runtime'
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// does not cause errors.
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TEST(InstructionSetFeaturesTest, AddFeaturesFromValidStringContainingDefaultOrRuntime) {
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std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
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InstructionSetFeatures::FromCppDefines());
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std::vector<std::string> valid_feature_strings = {
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"default",
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",,,default",
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"default,,,,",
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",,,default,,,,",
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"default, , , ",
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" , , ,default",
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" , , ,default, , , ",
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" default , , , ",
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",,,runtime",
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"runtime,,,,",
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",,,runtime,,,,",
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"runtime, , , ",
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" , , ,runtime",
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" , , ,runtime, , , ",
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" runtime , , , "
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};
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for (const std::string& valid_feature_string : valid_feature_strings) {
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std::string error_msg;
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EXPECT_NE(cpp_defined_features->AddFeaturesFromString(valid_feature_string, &error_msg),
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nullptr) << " Valid feature string: '" << valid_feature_string << "'";
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EXPECT_TRUE(error_msg.empty()) << error_msg;
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}
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}
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// Spaces and multiple commas are ignores in a instruction set feature string.
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//
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// Test that a use of spaces and multiple commas without any feature names
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// causes errors.
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TEST(InstructionSetFeaturesTest, AddFeaturesFromInvalidStringWithoutFeatureNames) {
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std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
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InstructionSetFeatures::FromCppDefines());
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std::vector<std::string> invalid_feature_strings = {
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" ",
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" ",
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",",
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",,",
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" , , ,,,,,,",
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"\t",
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" \t ",
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",",
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",,",
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" , , ,,,,,,"
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};
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for (const std::string& invalid_feature_string : invalid_feature_strings) {
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std::string error_msg;
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EXPECT_EQ(cpp_defined_features->AddFeaturesFromString(invalid_feature_string, &error_msg),
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nullptr) << " Invalid feature string: '" << invalid_feature_string << "'";
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EXPECT_EQ(error_msg, "No instruction set features specified");
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}
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}
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TEST(InstructionSetFeaturesTest, AddFeaturesFromStringRuntime) {
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std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
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InstructionSetFeatures::FromCppDefines());
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std::string error_msg;
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const std::unique_ptr<const InstructionSetFeatures> features =
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cpp_defined_features->AddFeaturesFromString("runtime", &error_msg);
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EXPECT_NE(features, nullptr);
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EXPECT_TRUE(error_msg.empty()) << error_msg;
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if (!InstructionSetFeatures::IsRuntimeDetectionSupported()) {
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EXPECT_TRUE(features->Equals(cpp_defined_features.get()));
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}
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}
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} // namespace art
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