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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "instruction_set_features_arm.h"
#include "gtest/gtest.h"
namespace art {
TEST(ArmInstructionSetFeaturesTest, ArmFeaturesFromVariant) {
// Build features for a 32-bit ARM krait processor.
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> krait_features(
InstructionSetFeatures::FromVariant(InstructionSet::kArm, "krait", &error_msg));
ASSERT_TRUE(krait_features.get() != nullptr) << error_msg;
ASSERT_EQ(krait_features->GetInstructionSet(), InstructionSet::kArm);
EXPECT_TRUE(krait_features->Equals(krait_features.get()));
EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("div,atomic_ldrd_strd,-armv8a", krait_features->GetFeatureString().c_str());
EXPECT_EQ(krait_features->AsBitmap(), 3U);
// Build features for a 32-bit ARM kryo processor.
std::unique_ptr<const InstructionSetFeatures> kryo_features(
InstructionSetFeatures::FromVariant(InstructionSet::kArm, "kryo", &error_msg));
ASSERT_TRUE(kryo_features.get() != nullptr) << error_msg;
ASSERT_EQ(kryo_features->GetInstructionSet(), InstructionSet::kArm);
EXPECT_TRUE(kryo_features->Equals(kryo_features.get()));
EXPECT_TRUE(kryo_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_TRUE(kryo_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("div,atomic_ldrd_strd,armv8a", kryo_features->GetFeatureString().c_str());
EXPECT_EQ(kryo_features->AsBitmap(), 7U);
// Build features for a 32-bit ARMv7 processor.
std::unique_ptr<const InstructionSetFeatures> generic_features(
InstructionSetFeatures::FromVariant(InstructionSet::kArm, "generic", &error_msg));
ASSERT_TRUE(generic_features.get() != nullptr) << error_msg;
EXPECT_TRUE(generic_features->Equals(generic_features.get()));
EXPECT_FALSE(generic_features->Equals(krait_features.get()));
EXPECT_FALSE(krait_features->Equals(generic_features.get()));
EXPECT_FALSE(generic_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_FALSE(generic_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("-div,-atomic_ldrd_strd,-armv8a", generic_features->GetFeatureString().c_str());
EXPECT_EQ(generic_features->AsBitmap(), 0U);
// ARM6 is not a supported architecture variant.
std::unique_ptr<const InstructionSetFeatures> arm6_features(
InstructionSetFeatures::FromVariant(InstructionSet::kArm, "arm6", &error_msg));
EXPECT_TRUE(arm6_features.get() == nullptr);
EXPECT_NE(error_msg.size(), 0U);
}
TEST(ArmInstructionSetFeaturesTest, ArmAddFeaturesFromString) {
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> base_features(
InstructionSetFeatures::FromVariant(InstructionSet::kArm, "generic", &error_msg));
ASSERT_TRUE(base_features.get() != nullptr) << error_msg;
// Build features for a 32-bit ARM with LPAE and div processor.
std::unique_ptr<const InstructionSetFeatures> krait_features(
base_features->AddFeaturesFromString("atomic_ldrd_strd,div", &error_msg));
ASSERT_TRUE(krait_features.get() != nullptr) << error_msg;
ASSERT_EQ(krait_features->GetInstructionSet(), InstructionSet::kArm);
EXPECT_TRUE(krait_features->Equals(krait_features.get()));
EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("div,atomic_ldrd_strd,-armv8a", krait_features->GetFeatureString().c_str());
EXPECT_EQ(krait_features->AsBitmap(), 3U);
// Build features for a 32-bit ARM with LPAE and div processor.
std::unique_ptr<const InstructionSetFeatures> kryo_features(
base_features->AddFeaturesFromString("atomic_ldrd_strd,div", &error_msg));
ASSERT_TRUE(kryo_features.get() != nullptr) << error_msg;
ASSERT_EQ(kryo_features->GetInstructionSet(), InstructionSet::kArm);
EXPECT_TRUE(kryo_features->Equals(krait_features.get()));
EXPECT_TRUE(kryo_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_TRUE(kryo_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("div,atomic_ldrd_strd,-armv8a", kryo_features->GetFeatureString().c_str());
EXPECT_EQ(kryo_features->AsBitmap(), 3U);
// Build features for a 32-bit ARM processor with LPAE and div flipped.
std::unique_ptr<const InstructionSetFeatures> denver_features(
base_features->AddFeaturesFromString("div,atomic_ldrd_strd,armv8a", &error_msg));
ASSERT_TRUE(denver_features.get() != nullptr) << error_msg;
EXPECT_TRUE(denver_features->Equals(denver_features.get()));
EXPECT_FALSE(denver_features->Equals(krait_features.get()));
EXPECT_TRUE(denver_features->HasAtLeast(krait_features.get()));
EXPECT_FALSE(krait_features->Equals(denver_features.get()));
EXPECT_TRUE(denver_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_TRUE(denver_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("div,atomic_ldrd_strd,armv8a", denver_features->GetFeatureString().c_str());
EXPECT_EQ(denver_features->AsBitmap(), 7U);
// Build features for a 32-bit default ARM processor.
std::unique_ptr<const InstructionSetFeatures> generic_features(
base_features->AddFeaturesFromString("default", &error_msg));
ASSERT_TRUE(generic_features.get() != nullptr) << error_msg;
EXPECT_TRUE(generic_features->Equals(generic_features.get()));
EXPECT_FALSE(generic_features->Equals(krait_features.get()));
EXPECT_FALSE(krait_features->Equals(generic_features.get()));
EXPECT_FALSE(generic_features->AsArmInstructionSetFeatures()->HasDivideInstruction());
EXPECT_FALSE(generic_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd());
EXPECT_STREQ("-div,-atomic_ldrd_strd,-armv8a", generic_features->GetFeatureString().c_str());
EXPECT_EQ(generic_features->AsBitmap(), 0U);
}
} // namespace art
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