1 /* 2 * Copyright (C) 2015 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 "arch/context.h" 18 #include "art_method-inl.h" 19 #include "jni.h" 20 #include "oat_quick_method_header.h" 21 #include "scoped_thread_state_change-inl.h" 22 #include "stack.h" 23 #include "thread.h" 24 25 namespace art { 26 27 namespace { 28 29 class TestVisitor : public StackVisitor { 30 public: 31 TestVisitor(Thread* thread, Context* context) 32 REQUIRES_SHARED(Locks::mutator_lock_) 33 : StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames) {} 34 35 bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) { 36 ArtMethod* m = GetMethod(); 37 std::string m_name(m->GetName()); 38 39 if (m_name.compare("mergeOk") == 0) { 40 uint32_t value = 0; 41 42 CHECK(GetVReg(m, 0, kIntVReg, &value)); 43 CHECK_EQ(value, 0u); 44 45 CHECK(GetVReg(m, 1, kIntVReg, &value)); 46 CHECK_EQ(value, 1u); 47 48 CHECK(GetVReg(m, 2, kIntVReg, &value)); 49 CHECK_EQ(value, 2u); 50 51 CHECK(GetVReg(m, 3, kIntVReg, &value)); 52 CHECK_EQ(value, 1u); 53 54 CHECK(GetVReg(m, 4, kIntVReg, &value)); 55 CHECK_EQ(value, 2u); 56 did_check_ = true; 57 } else if (m_name.compare("mergeNotOk") == 0) { 58 uint32_t value = 0; 59 60 CHECK(GetVReg(m, 0, kIntVReg, &value)); 61 CHECK_EQ(value, 0u); 62 63 CHECK(GetVReg(m, 1, kIntVReg, &value)); 64 CHECK_EQ(value, 1u); 65 66 bool success = GetVReg(m, 2, kIntVReg, &value); 67 if (!IsShadowFrame() && GetCurrentOatQuickMethodHeader()->IsOptimized()) { 68 CHECK(!success); 69 } 70 71 CHECK(GetVReg(m, 3, kIntVReg, &value)); 72 CHECK_EQ(value, 1u); 73 74 CHECK(GetVReg(m, 4, kFloatVReg, &value)); 75 uint32_t cast = bit_cast<uint32_t, float>(4.0f); 76 CHECK_EQ(value, cast); 77 did_check_ = true; 78 } else if (m_name.compare("phiEquivalent") == 0) { 79 uint32_t value = 0; 80 81 CHECK(GetVReg(m, 0, kIntVReg, &value)); 82 // Quick doesn't like this one on x64. 83 CHECK_EQ(value, 0u); 84 85 CHECK(GetVReg(m, 1, kIntVReg, &value)); 86 CHECK_EQ(value, 1u); 87 88 CHECK(GetVReg(m, 2, kFloatVReg, &value)); 89 CHECK_EQ(value, 1u); 90 91 did_check_ = true; 92 } else if (m_name.compare("mergeReferences") == 0) { 93 uint32_t value = 0; 94 95 CHECK(GetVReg(m, 0, kIntVReg, &value)); 96 CHECK_EQ(value, 0u); 97 98 CHECK(GetVReg(m, 1, kIntVReg, &value)); 99 CHECK_EQ(value, 1u); 100 101 CHECK(GetVReg(m, 2, kReferenceVReg, &value)); 102 CHECK_EQ(value, 0u); 103 104 CHECK(GetVReg(m, 3, kReferenceVReg, &value)); 105 CHECK_NE(value, 0u); 106 107 did_check_ = true; 108 } else if (m_name.compare("phiAllEquivalents") == 0) { 109 uint32_t value = 0; 110 111 CHECK(GetVReg(m, 0, kIntVReg, &value)); 112 CHECK_EQ(value, 0u); 113 114 CHECK(GetVReg(m, 1, kIntVReg, &value)); 115 CHECK_EQ(value, 1u); 116 117 CHECK(GetVReg(m, 2, kReferenceVReg, &value)); 118 CHECK_EQ(value, 0u); 119 120 did_check_ = true; 121 } 122 123 return true; 124 } 125 126 bool did_check_ = false; 127 }; 128 129 extern "C" JNIEXPORT void JNICALL Java_PhiLiveness_regsNativeCall( 130 JNIEnv*, jclass value ATTRIBUTE_UNUSED) { 131 ScopedObjectAccess soa(Thread::Current()); 132 std::unique_ptr<Context> context(Context::Create()); 133 TestVisitor visitor(soa.Self(), context.get()); 134 visitor.WalkStack(); 135 CHECK(visitor.did_check_); 136 } 137 138 extern "C" JNIEXPORT void JNICALL Java_PhiLiveness_regsNativeCallWithParameters( 139 JNIEnv*, jclass value ATTRIBUTE_UNUSED, jobject main, jint int_value, jfloat float_value) { 140 ScopedObjectAccess soa(Thread::Current()); 141 std::unique_ptr<Context> context(Context::Create()); 142 CHECK(soa.Decode<mirror::Object>(main) == nullptr); 143 CHECK_EQ(int_value, 0); 144 int32_t cast = bit_cast<int32_t, float>(float_value); 145 CHECK_EQ(cast, 0); 146 TestVisitor visitor(soa.Self(), context.get()); 147 visitor.WalkStack(); 148 CHECK(visitor.did_check_); 149 } 150 151 } // namespace 152 153 } // namespace art 154
