Ian Rogers | d582fa4 | 2014-11-05 23:46:43 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "instruction_set_features_arm.h" |
| 18 | |
| 19 | #include "gtest/gtest.h" |
| 20 | |
| 21 | namespace art { |
| 22 | |
| 23 | TEST(ArmInstructionSetFeaturesTest, ArmFeaturesFromVariant) { |
| 24 | // Build features for a 32-bit ARM krait processor. |
| 25 | std::string error_msg; |
| 26 | std::unique_ptr<const InstructionSetFeatures> krait_features( |
| 27 | InstructionSetFeatures::FromVariant(kArm, "krait", &error_msg)); |
| 28 | ASSERT_TRUE(krait_features.get() != nullptr) << error_msg; |
| 29 | |
| 30 | ASSERT_EQ(krait_features->GetInstructionSet(), kArm); |
| 31 | EXPECT_TRUE(krait_features->Equals(krait_features.get())); |
| 32 | EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasDivideInstruction()); |
| 33 | EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()); |
| 34 | EXPECT_STREQ("smp,div,atomic_ldrd_strd", krait_features->GetFeatureString().c_str()); |
| 35 | EXPECT_EQ(krait_features->AsBitmap(), 7U); |
| 36 | |
| 37 | // Build features for a 32-bit ARM denver processor. |
| 38 | std::unique_ptr<const InstructionSetFeatures> denver_features( |
| 39 | InstructionSetFeatures::FromVariant(kArm, "denver", &error_msg)); |
| 40 | ASSERT_TRUE(denver_features.get() != nullptr) << error_msg; |
| 41 | |
| 42 | EXPECT_TRUE(denver_features->Equals(denver_features.get())); |
| 43 | EXPECT_TRUE(denver_features->Equals(krait_features.get())); |
| 44 | EXPECT_TRUE(krait_features->Equals(denver_features.get())); |
| 45 | EXPECT_TRUE(denver_features->AsArmInstructionSetFeatures()->HasDivideInstruction()); |
| 46 | EXPECT_TRUE(denver_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()); |
| 47 | EXPECT_STREQ("smp,div,atomic_ldrd_strd", denver_features->GetFeatureString().c_str()); |
| 48 | EXPECT_EQ(denver_features->AsBitmap(), 7U); |
| 49 | |
| 50 | // Build features for a 32-bit ARMv7 processor. |
| 51 | std::unique_ptr<const InstructionSetFeatures> arm7_features( |
| 52 | InstructionSetFeatures::FromVariant(kArm, "arm7", &error_msg)); |
| 53 | ASSERT_TRUE(arm7_features.get() != nullptr) << error_msg; |
| 54 | |
| 55 | EXPECT_TRUE(arm7_features->Equals(arm7_features.get())); |
| 56 | EXPECT_FALSE(arm7_features->Equals(krait_features.get())); |
| 57 | EXPECT_FALSE(krait_features->Equals(arm7_features.get())); |
| 58 | EXPECT_FALSE(arm7_features->AsArmInstructionSetFeatures()->HasDivideInstruction()); |
| 59 | EXPECT_FALSE(arm7_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()); |
| 60 | EXPECT_STREQ("smp,-div,-atomic_ldrd_strd", arm7_features->GetFeatureString().c_str()); |
| 61 | EXPECT_EQ(arm7_features->AsBitmap(), 1U); |
| 62 | |
| 63 | // ARM6 is not a supported architecture variant. |
| 64 | std::unique_ptr<const InstructionSetFeatures> arm6_features( |
| 65 | InstructionSetFeatures::FromVariant(kArm, "arm6", &error_msg)); |
| 66 | EXPECT_TRUE(arm6_features.get() == nullptr); |
| 67 | EXPECT_NE(error_msg.size(), 0U); |
| 68 | } |
| 69 | |
| 70 | TEST(ArmInstructionSetFeaturesTest, ArmAddFeaturesFromString) { |
| 71 | std::string error_msg; |
| 72 | std::unique_ptr<const InstructionSetFeatures> base_features( |
| 73 | InstructionSetFeatures::FromVariant(kArm, "arm7", &error_msg)); |
| 74 | ASSERT_TRUE(base_features.get() != nullptr) << error_msg; |
| 75 | |
| 76 | // Build features for a 32-bit ARM with LPAE and div processor. |
| 77 | std::unique_ptr<const InstructionSetFeatures> krait_features( |
| 78 | base_features->AddFeaturesFromString("atomic_ldrd_strd,div", &error_msg)); |
| 79 | ASSERT_TRUE(krait_features.get() != nullptr) << error_msg; |
| 80 | |
| 81 | ASSERT_EQ(krait_features->GetInstructionSet(), kArm); |
| 82 | EXPECT_TRUE(krait_features->Equals(krait_features.get())); |
| 83 | EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasDivideInstruction()); |
| 84 | EXPECT_TRUE(krait_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()); |
| 85 | EXPECT_STREQ("smp,div,atomic_ldrd_strd", krait_features->GetFeatureString().c_str()); |
| 86 | EXPECT_EQ(krait_features->AsBitmap(), 7U); |
| 87 | |
| 88 | // Build features for a 32-bit ARM processor with LPAE and div flipped. |
| 89 | std::unique_ptr<const InstructionSetFeatures> denver_features( |
| 90 | base_features->AddFeaturesFromString("div,atomic_ldrd_strd", &error_msg)); |
| 91 | ASSERT_TRUE(denver_features.get() != nullptr) << error_msg; |
| 92 | |
| 93 | EXPECT_TRUE(denver_features->Equals(denver_features.get())); |
| 94 | EXPECT_TRUE(denver_features->Equals(krait_features.get())); |
| 95 | EXPECT_TRUE(krait_features->Equals(denver_features.get())); |
| 96 | EXPECT_TRUE(denver_features->AsArmInstructionSetFeatures()->HasDivideInstruction()); |
| 97 | EXPECT_TRUE(denver_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()); |
| 98 | EXPECT_STREQ("smp,div,atomic_ldrd_strd", denver_features->GetFeatureString().c_str()); |
| 99 | EXPECT_EQ(denver_features->AsBitmap(), 7U); |
| 100 | |
| 101 | // Build features for a 32-bit default ARM processor. |
| 102 | std::unique_ptr<const InstructionSetFeatures> arm7_features( |
| 103 | base_features->AddFeaturesFromString("default", &error_msg)); |
| 104 | ASSERT_TRUE(arm7_features.get() != nullptr) << error_msg; |
| 105 | |
| 106 | EXPECT_TRUE(arm7_features->Equals(arm7_features.get())); |
| 107 | EXPECT_FALSE(arm7_features->Equals(krait_features.get())); |
| 108 | EXPECT_FALSE(krait_features->Equals(arm7_features.get())); |
| 109 | EXPECT_FALSE(arm7_features->AsArmInstructionSetFeatures()->HasDivideInstruction()); |
| 110 | EXPECT_FALSE(arm7_features->AsArmInstructionSetFeatures()->HasAtomicLdrdAndStrd()); |
| 111 | EXPECT_STREQ("smp,-div,-atomic_ldrd_strd", arm7_features->GetFeatureString().c_str()); |
| 112 | EXPECT_EQ(arm7_features->AsBitmap(), 1U); |
| 113 | } |
| 114 | |
| 115 | } // namespace art |