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_x86.h"
18 
19 #include <gtest/gtest.h>
20 
21 namespace art {
22 
TEST(X86InstructionSetFeaturesTest,X86FeaturesFromDefaultVariant)23 TEST(X86InstructionSetFeaturesTest, X86FeaturesFromDefaultVariant) {
24   std::string error_msg;
25   std::unique_ptr<const InstructionSetFeatures> x86_features(
26       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "default", &error_msg));
27   ASSERT_TRUE(x86_features.get() != nullptr) << error_msg;
28   EXPECT_EQ(x86_features->GetInstructionSet(), InstructionSet::kX86);
29   EXPECT_TRUE(x86_features->Equals(x86_features.get()));
30   EXPECT_STREQ("-ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
31                x86_features->GetFeatureString().c_str());
32   EXPECT_EQ(x86_features->AsBitmap(), 0U);
33 }
34 
TEST(X86InstructionSetFeaturesTest,X86FeaturesFromAtomVariant)35 TEST(X86InstructionSetFeaturesTest, X86FeaturesFromAtomVariant) {
36   // Build features for a 32-bit x86 atom processor.
37   std::string error_msg;
38   std::unique_ptr<const InstructionSetFeatures> x86_features(
39       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "atom", &error_msg));
40   ASSERT_TRUE(x86_features.get() != nullptr) << error_msg;
41   EXPECT_EQ(x86_features->GetInstructionSet(), InstructionSet::kX86);
42   EXPECT_TRUE(x86_features->Equals(x86_features.get()));
43   EXPECT_STREQ("ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
44                x86_features->GetFeatureString().c_str());
45   EXPECT_EQ(x86_features->AsBitmap(), 1U);
46 
47   // Build features for a 32-bit x86 default processor.
48   std::unique_ptr<const InstructionSetFeatures> x86_default_features(
49       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "default", &error_msg));
50   ASSERT_TRUE(x86_default_features.get() != nullptr) << error_msg;
51   EXPECT_EQ(x86_default_features->GetInstructionSet(), InstructionSet::kX86);
52   EXPECT_TRUE(x86_default_features->Equals(x86_default_features.get()));
53   EXPECT_STREQ("-ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
54                x86_default_features->GetFeatureString().c_str());
55   EXPECT_EQ(x86_default_features->AsBitmap(), 0U);
56 
57   // Build features for a 64-bit x86-64 atom processor.
58   std::unique_ptr<const InstructionSetFeatures> x86_64_features(
59       InstructionSetFeatures::FromVariant(InstructionSet::kX86_64, "atom", &error_msg));
60   ASSERT_TRUE(x86_64_features.get() != nullptr) << error_msg;
61   EXPECT_EQ(x86_64_features->GetInstructionSet(), InstructionSet::kX86_64);
62   EXPECT_TRUE(x86_64_features->Equals(x86_64_features.get()));
63   EXPECT_STREQ("ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
64                x86_64_features->GetFeatureString().c_str());
65   EXPECT_EQ(x86_64_features->AsBitmap(), 1U);
66 
67   EXPECT_FALSE(x86_64_features->Equals(x86_features.get()));
68   EXPECT_FALSE(x86_64_features->Equals(x86_default_features.get()));
69   EXPECT_FALSE(x86_features->Equals(x86_default_features.get()));
70 }
71 
TEST(X86InstructionSetFeaturesTest,X86FeaturesFromSandybridgeVariant)72 TEST(X86InstructionSetFeaturesTest, X86FeaturesFromSandybridgeVariant) {
73   // Build features for a 32-bit x86 sandybridge processor.
74   std::string error_msg;
75   std::unique_ptr<const InstructionSetFeatures> x86_features(
76       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "sandybridge", &error_msg));
77   ASSERT_TRUE(x86_features.get() != nullptr) << error_msg;
78   EXPECT_EQ(x86_features->GetInstructionSet(), InstructionSet::kX86);
79   EXPECT_TRUE(x86_features->Equals(x86_features.get()));
80   EXPECT_STREQ("ssse3,sse4.1,sse4.2,-avx,-avx2,popcnt",
81                x86_features->GetFeatureString().c_str());
82   EXPECT_EQ(x86_features->AsBitmap(), 39U);
83 
84   // Build features for a 32-bit x86 default processor.
85   std::unique_ptr<const InstructionSetFeatures> x86_default_features(
86       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "default", &error_msg));
87   ASSERT_TRUE(x86_default_features.get() != nullptr) << error_msg;
88   EXPECT_EQ(x86_default_features->GetInstructionSet(), InstructionSet::kX86);
89   EXPECT_TRUE(x86_default_features->Equals(x86_default_features.get()));
90   EXPECT_STREQ("-ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
91                x86_default_features->GetFeatureString().c_str());
92   EXPECT_EQ(x86_default_features->AsBitmap(), 0U);
93 
94   // Build features for a 64-bit x86-64 sandybridge processor.
95   std::unique_ptr<const InstructionSetFeatures> x86_64_features(
96       InstructionSetFeatures::FromVariant(InstructionSet::kX86_64, "sandybridge", &error_msg));
97   ASSERT_TRUE(x86_64_features.get() != nullptr) << error_msg;
98   EXPECT_EQ(x86_64_features->GetInstructionSet(), InstructionSet::kX86_64);
99   EXPECT_TRUE(x86_64_features->Equals(x86_64_features.get()));
100   EXPECT_STREQ("ssse3,sse4.1,sse4.2,-avx,-avx2,popcnt",
101                x86_64_features->GetFeatureString().c_str());
102   EXPECT_EQ(x86_64_features->AsBitmap(), 39U);
103 
104   EXPECT_FALSE(x86_64_features->Equals(x86_features.get()));
105   EXPECT_FALSE(x86_64_features->Equals(x86_default_features.get()));
106   EXPECT_FALSE(x86_features->Equals(x86_default_features.get()));
107 }
108 
TEST(X86InstructionSetFeaturesTest,X86FeaturesFromSilvermontVariant)109 TEST(X86InstructionSetFeaturesTest, X86FeaturesFromSilvermontVariant) {
110   // Build features for a 32-bit x86 silvermont processor.
111   std::string error_msg;
112   std::unique_ptr<const InstructionSetFeatures> x86_features(
113       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "silvermont", &error_msg));
114   ASSERT_TRUE(x86_features.get() != nullptr) << error_msg;
115   EXPECT_EQ(x86_features->GetInstructionSet(), InstructionSet::kX86);
116   EXPECT_TRUE(x86_features->Equals(x86_features.get()));
117   EXPECT_STREQ("ssse3,sse4.1,sse4.2,-avx,-avx2,popcnt",
118                x86_features->GetFeatureString().c_str());
119   EXPECT_EQ(x86_features->AsBitmap(), 39U);
120 
121   // Build features for a 32-bit x86 default processor.
122   std::unique_ptr<const InstructionSetFeatures> x86_default_features(
123       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "default", &error_msg));
124   ASSERT_TRUE(x86_default_features.get() != nullptr) << error_msg;
125   EXPECT_EQ(x86_default_features->GetInstructionSet(), InstructionSet::kX86);
126   EXPECT_TRUE(x86_default_features->Equals(x86_default_features.get()));
127   EXPECT_STREQ("-ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
128                x86_default_features->GetFeatureString().c_str());
129   EXPECT_EQ(x86_default_features->AsBitmap(), 0U);
130 
131   // Build features for a 64-bit x86-64 silvermont processor.
132   std::unique_ptr<const InstructionSetFeatures> x86_64_features(
133       InstructionSetFeatures::FromVariant(InstructionSet::kX86_64, "silvermont", &error_msg));
134   ASSERT_TRUE(x86_64_features.get() != nullptr) << error_msg;
135   EXPECT_EQ(x86_64_features->GetInstructionSet(), InstructionSet::kX86_64);
136   EXPECT_TRUE(x86_64_features->Equals(x86_64_features.get()));
137   EXPECT_STREQ("ssse3,sse4.1,sse4.2,-avx,-avx2,popcnt",
138                x86_64_features->GetFeatureString().c_str());
139   EXPECT_EQ(x86_64_features->AsBitmap(), 39U);
140 
141   EXPECT_FALSE(x86_64_features->Equals(x86_features.get()));
142   EXPECT_FALSE(x86_64_features->Equals(x86_default_features.get()));
143   EXPECT_FALSE(x86_features->Equals(x86_default_features.get()));
144 }
145 
TEST(X86InstructionSetFeaturesTest,X86FeaturesFromKabylakeVariant)146 TEST(X86InstructionSetFeaturesTest, X86FeaturesFromKabylakeVariant) {
147   // Build features for a 32-bit kabylake x86 processor.
148   std::string error_msg;
149   std::unique_ptr<const InstructionSetFeatures> x86_features(
150       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "kabylake", &error_msg));
151   ASSERT_TRUE(x86_features.get() != nullptr) << error_msg;
152   EXPECT_EQ(x86_features->GetInstructionSet(), InstructionSet::kX86);
153   EXPECT_TRUE(x86_features->Equals(x86_features.get()));
154   EXPECT_STREQ("ssse3,sse4.1,sse4.2,avx,avx2,popcnt",
155                x86_features->GetFeatureString().c_str());
156   EXPECT_EQ(x86_features->AsBitmap(), 63U);
157 
158   // Build features for a 32-bit x86 default processor.
159   std::unique_ptr<const InstructionSetFeatures> x86_default_features(
160       InstructionSetFeatures::FromVariant(InstructionSet::kX86, "default", &error_msg));
161   ASSERT_TRUE(x86_default_features.get() != nullptr) << error_msg;
162   EXPECT_EQ(x86_default_features->GetInstructionSet(), InstructionSet::kX86);
163   EXPECT_TRUE(x86_default_features->Equals(x86_default_features.get()));
164   EXPECT_STREQ("-ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt",
165                x86_default_features->GetFeatureString().c_str());
166   EXPECT_EQ(x86_default_features->AsBitmap(), 0U);
167 
168   // Build features for a 64-bit x86-64 kabylake processor.
169   std::unique_ptr<const InstructionSetFeatures> x86_64_features(
170       InstructionSetFeatures::FromVariant(InstructionSet::kX86_64, "kabylake", &error_msg));
171   ASSERT_TRUE(x86_64_features.get() != nullptr) << error_msg;
172   EXPECT_EQ(x86_64_features->GetInstructionSet(), InstructionSet::kX86_64);
173   EXPECT_TRUE(x86_64_features->Equals(x86_64_features.get()));
174   EXPECT_STREQ("ssse3,sse4.1,sse4.2,avx,avx2,popcnt",
175                x86_64_features->GetFeatureString().c_str());
176   EXPECT_EQ(x86_64_features->AsBitmap(), 63U);
177 
178   EXPECT_FALSE(x86_64_features->Equals(x86_features.get()));
179   EXPECT_FALSE(x86_64_features->Equals(x86_default_features.get()));
180   EXPECT_FALSE(x86_features->Equals(x86_default_features.get()));
181   }
182 }  // namespace art
183