Revert "Revert "Quick: Rewrite type inference pass.""
Fix the type of the ArtMethod* SSA register.
Bug: 19419671
This reverts commit 1b717f63847de8762e7f7bdd6708fdfae9d24a67.
Change-Id: Ie4da3c03a0e0334a39a24718f6dc31f9255cfb53
diff --git a/compiler/utils/test_dex_file_builder.h b/compiler/utils/test_dex_file_builder.h
new file mode 100644
index 0000000..ab039aa
--- /dev/null
+++ b/compiler/utils/test_dex_file_builder.h
@@ -0,0 +1,372 @@
+/*
+ * Copyright (C) 2015 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.
+ */
+
+#ifndef ART_COMPILER_UTILS_TEST_DEX_FILE_BUILDER_H_
+#define ART_COMPILER_UTILS_TEST_DEX_FILE_BUILDER_H_
+
+#include <cstring>
+#include <set>
+#include <map>
+#include <vector>
+
+#include "dex_file.h"
+#include "utils.h"
+
+namespace art {
+
+class TestDexFileBuilder {
+ public:
+ TestDexFileBuilder()
+ : strings_(), types_(), fields_(), protos_(), dex_file_data_() {
+ }
+
+ void AddString(const std::string& str) {
+ CHECK(dex_file_data_.empty());
+ auto it = strings_.emplace(str, IdxAndDataOffset()).first;
+ CHECK_LT(it->first.length(), 128u); // Don't allow multi-byte length in uleb128.
+ }
+
+ void AddType(const std::string& descriptor) {
+ CHECK(dex_file_data_.empty());
+ AddString(descriptor);
+ types_.emplace(descriptor, 0u);
+ }
+
+ void AddField(const std::string& class_descriptor, const std::string& type,
+ const std::string& name) {
+ CHECK(dex_file_data_.empty());
+ AddType(class_descriptor);
+ AddType(type);
+ AddString(name);
+ FieldKey key = { class_descriptor, type, name };
+ fields_.emplace(key, 0u);
+ }
+
+ void AddMethod(const std::string& class_descriptor, const std::string& signature,
+ const std::string& name) {
+ CHECK(dex_file_data_.empty());
+ AddType(class_descriptor);
+ AddString(name);
+
+ ProtoKey proto_key = CreateProtoKey(signature);
+ AddString(proto_key.shorty);
+ AddType(proto_key.return_type);
+ for (const auto& arg_type : proto_key.args) {
+ AddType(arg_type);
+ }
+ auto it = protos_.emplace(proto_key, IdxAndDataOffset()).first;
+ const ProtoKey* proto = &it->first; // Valid as long as the element remains in protos_.
+
+ MethodKey method_key = {
+ class_descriptor, name, proto
+ };
+ methods_.emplace(method_key, 0u);
+ }
+
+ // NOTE: The builder holds the actual data, so it must live as long as the dex file.
+ std::unique_ptr<const DexFile> Build(const std::string& dex_location) {
+ CHECK(dex_file_data_.empty());
+ union {
+ uint8_t data[sizeof(DexFile::Header)];
+ uint64_t force_alignment;
+ } header_data;
+ std::memset(header_data.data, 0, sizeof(header_data.data));
+ DexFile::Header* header = reinterpret_cast<DexFile::Header*>(&header_data.data);
+ std::copy_n(DexFile::kDexMagic, 4u, header->magic_);
+ std::copy_n(DexFile::kDexMagicVersion, 4u, header->magic_ + 4u);
+ header->header_size_ = sizeof(header);
+ header->endian_tag_ = DexFile::kDexEndianConstant;
+ header->link_size_ = 0u; // Unused.
+ header->link_off_ = 0u; // Unused.
+ header->map_off_ = 0u; // Unused.
+
+ uint32_t data_section_size = 0u;
+
+ uint32_t string_ids_offset = sizeof(DexFile::Header);
+ uint32_t string_idx = 0u;
+ for (auto& entry : strings_) {
+ entry.second.idx = string_idx;
+ string_idx += 1u;
+ entry.second.data_offset = data_section_size;
+ data_section_size += entry.first.length() + 1u /* length */ + 1u /* null-terminator */;
+ }
+ header->string_ids_size_ = strings_.size();
+ header->string_ids_off_ = strings_.empty() ? 0u : string_ids_offset;
+
+ uint32_t type_ids_offset = string_ids_offset + strings_.size() * sizeof(DexFile::StringId);
+ uint32_t type_idx = 0u;
+ for (auto& entry : types_) {
+ entry.second = type_idx;
+ type_idx += 1u;
+ }
+ header->type_ids_size_ = types_.size();
+ header->type_ids_off_ = types_.empty() ? 0u : type_ids_offset;
+
+ uint32_t proto_ids_offset = type_ids_offset + types_.size() * sizeof(DexFile::TypeId);
+ uint32_t proto_idx = 0u;
+ for (auto& entry : protos_) {
+ entry.second.idx = proto_idx;
+ proto_idx += 1u;
+ size_t num_args = entry.first.args.size();
+ if (num_args != 0u) {
+ entry.second.data_offset = RoundUp(data_section_size, 4u);
+ data_section_size = entry.second.data_offset + 4u + num_args * sizeof(DexFile::TypeItem);
+ } else {
+ entry.second.data_offset = 0u;
+ }
+ }
+ header->proto_ids_size_ = protos_.size();
+ header->proto_ids_off_ = protos_.empty() ? 0u : proto_ids_offset;
+
+ uint32_t field_ids_offset = proto_ids_offset + protos_.size() * sizeof(DexFile::ProtoId);
+ uint32_t field_idx = 0u;
+ for (auto& entry : fields_) {
+ entry.second = field_idx;
+ field_idx += 1u;
+ }
+ header->field_ids_size_ = fields_.size();
+ header->field_ids_off_ = fields_.empty() ? 0u : field_ids_offset;
+
+ uint32_t method_ids_offset = field_ids_offset + fields_.size() * sizeof(DexFile::FieldId);
+ uint32_t method_idx = 0u;
+ for (auto& entry : methods_) {
+ entry.second = method_idx;
+ method_idx += 1u;
+ }
+ header->method_ids_size_ = methods_.size();
+ header->method_ids_off_ = methods_.empty() ? 0u : method_ids_offset;
+
+ // No class defs.
+ header->class_defs_size_ = 0u;
+ header->class_defs_off_ = 0u;
+
+ uint32_t data_section_offset = method_ids_offset + methods_.size() * sizeof(DexFile::MethodId);
+ header->data_size_ = data_section_size;
+ header->data_off_ = (data_section_size != 0u) ? data_section_offset : 0u;
+
+ uint32_t total_size = data_section_offset + data_section_size;
+
+ dex_file_data_.resize(total_size);
+ std::memcpy(&dex_file_data_[0], header_data.data, sizeof(DexFile::Header));
+
+ for (const auto& entry : strings_) {
+ CHECK_LT(entry.first.size(), 128u);
+ uint32_t raw_offset = data_section_offset + entry.second.data_offset;
+ dex_file_data_[raw_offset] = static_cast<uint8_t>(entry.first.size());
+ std::memcpy(&dex_file_data_[raw_offset + 1], entry.first.c_str(), entry.first.size() + 1);
+ Write32(string_ids_offset + entry.second.idx * sizeof(DexFile::StringId), raw_offset);
+ }
+
+ for (const auto& entry : types_) {
+ Write32(type_ids_offset + entry.second * sizeof(DexFile::TypeId), GetStringIdx(entry.first));
+ ++type_idx;
+ }
+
+ for (const auto& entry : protos_) {
+ size_t num_args = entry.first.args.size();
+ uint32_t type_list_offset =
+ (num_args != 0u) ? data_section_offset + entry.second.data_offset : 0u;
+ uint32_t raw_offset = proto_ids_offset + entry.second.idx * sizeof(DexFile::ProtoId);
+ Write32(raw_offset + 0u, GetStringIdx(entry.first.shorty));
+ Write16(raw_offset + 4u, GetTypeIdx(entry.first.return_type));
+ Write32(raw_offset + 8u, type_list_offset);
+ if (num_args != 0u) {
+ CHECK_NE(entry.second.data_offset, 0u);
+ Write32(type_list_offset, num_args);
+ for (size_t i = 0; i != num_args; ++i) {
+ Write16(type_list_offset + 4u + i * sizeof(DexFile::TypeItem),
+ GetTypeIdx(entry.first.args[i]));
+ }
+ }
+ }
+
+ for (const auto& entry : fields_) {
+ uint32_t raw_offset = field_ids_offset + entry.second * sizeof(DexFile::FieldId);
+ Write16(raw_offset + 0u, GetTypeIdx(entry.first.class_descriptor));
+ Write16(raw_offset + 2u, GetTypeIdx(entry.first.type));
+ Write32(raw_offset + 4u, GetStringIdx(entry.first.name));
+ }
+
+ for (const auto& entry : methods_) {
+ uint32_t raw_offset = method_ids_offset + entry.second * sizeof(DexFile::MethodId);
+ Write16(raw_offset + 0u, GetTypeIdx(entry.first.class_descriptor));
+ auto it = protos_.find(*entry.first.proto);
+ CHECK(it != protos_.end());
+ Write16(raw_offset + 2u, it->second.idx);
+ Write32(raw_offset + 4u, GetStringIdx(entry.first.name));
+ }
+
+ // Leave checksum and signature as zeros.
+
+ std::string error_msg;
+ std::unique_ptr<const DexFile> dex_file(DexFile::Open(
+ &dex_file_data_[0], dex_file_data_.size(), dex_location, 0u, nullptr, &error_msg));
+ CHECK(dex_file != nullptr) << error_msg;
+ return std::move(dex_file);
+ }
+
+ uint32_t GetStringIdx(const std::string& type) {
+ auto it = strings_.find(type);
+ CHECK(it != strings_.end());
+ return it->second.idx;
+ }
+
+ uint32_t GetTypeIdx(const std::string& type) {
+ auto it = types_.find(type);
+ CHECK(it != types_.end());
+ return it->second;
+ }
+
+ uint32_t GetFieldIdx(const std::string& class_descriptor, const std::string& type,
+ const std::string& name) {
+ FieldKey key = { class_descriptor, type, name };
+ auto it = fields_.find(key);
+ CHECK(it != fields_.end());
+ return it->second;
+ }
+
+ uint32_t GetMethodIdx(const std::string& class_descriptor, const std::string& signature,
+ const std::string& name) {
+ ProtoKey proto_key = CreateProtoKey(signature);
+ MethodKey method_key = { class_descriptor, name, &proto_key };
+ auto it = methods_.find(method_key);
+ CHECK(it != methods_.end());
+ return it->second;
+ }
+
+ private:
+ struct IdxAndDataOffset {
+ uint32_t idx;
+ uint32_t data_offset;
+ };
+
+ struct FieldKey {
+ const std::string class_descriptor;
+ const std::string type;
+ const std::string name;
+ };
+ struct FieldKeyComparator {
+ bool operator()(const FieldKey& lhs, const FieldKey& rhs) const {
+ if (lhs.class_descriptor != rhs.class_descriptor) {
+ return lhs.class_descriptor < rhs.class_descriptor;
+ }
+ if (lhs.name != rhs.name) {
+ return lhs.name < rhs.name;
+ }
+ return lhs.type < rhs.type;
+ }
+ };
+
+ struct ProtoKey {
+ std::string shorty;
+ std::string return_type;
+ std::vector<std::string> args;
+ };
+ struct ProtoKeyComparator {
+ bool operator()(const ProtoKey& lhs, const ProtoKey& rhs) const {
+ if (lhs.return_type != rhs.return_type) {
+ return lhs.return_type < rhs.return_type;
+ }
+ size_t min_args = std::min(lhs.args.size(), rhs.args.size());
+ for (size_t i = 0; i != min_args; ++i) {
+ if (lhs.args[i] != rhs.args[i]) {
+ return lhs.args[i] < rhs.args[i];
+ }
+ }
+ return lhs.args.size() < rhs.args.size();
+ }
+ };
+
+ struct MethodKey {
+ std::string class_descriptor;
+ std::string name;
+ const ProtoKey* proto;
+ };
+ struct MethodKeyComparator {
+ bool operator()(const MethodKey& lhs, const MethodKey& rhs) const {
+ if (lhs.class_descriptor != rhs.class_descriptor) {
+ return lhs.class_descriptor < rhs.class_descriptor;
+ }
+ if (lhs.name != rhs.name) {
+ return lhs.name < rhs.name;
+ }
+ return ProtoKeyComparator()(*lhs.proto, *rhs.proto);
+ }
+ };
+
+ ProtoKey CreateProtoKey(const std::string& signature) {
+ CHECK_EQ(signature[0], '(');
+ const char* args = signature.c_str() + 1;
+ const char* args_end = std::strchr(args, ')');
+ CHECK(args_end != nullptr);
+ const char* return_type = args_end + 1;
+
+ ProtoKey key = {
+ std::string() + ((*return_type == '[') ? 'L' : *return_type),
+ return_type,
+ std::vector<std::string>()
+ };
+ while (args != args_end) {
+ key.shorty += (*args == '[') ? 'L' : *args;
+ const char* arg_start = args;
+ while (*args == '[') {
+ ++args;
+ }
+ if (*args == 'L') {
+ do {
+ ++args;
+ CHECK_NE(args, args_end);
+ } while (*args != ';');
+ }
+ ++args;
+ key.args.emplace_back(arg_start, args);
+ }
+ return key;
+ }
+
+ void Write32(size_t offset, uint32_t value) {
+ CHECK_LE(offset + 4u, dex_file_data_.size());
+ CHECK_EQ(dex_file_data_[offset + 0], 0u);
+ CHECK_EQ(dex_file_data_[offset + 1], 0u);
+ CHECK_EQ(dex_file_data_[offset + 2], 0u);
+ CHECK_EQ(dex_file_data_[offset + 3], 0u);
+ dex_file_data_[offset + 0] = static_cast<uint8_t>(value >> 0);
+ dex_file_data_[offset + 1] = static_cast<uint8_t>(value >> 8);
+ dex_file_data_[offset + 2] = static_cast<uint8_t>(value >> 16);
+ dex_file_data_[offset + 3] = static_cast<uint8_t>(value >> 24);
+ }
+
+ void Write16(size_t offset, uint32_t value) {
+ CHECK_LE(value, 0xffffu);
+ CHECK_LE(offset + 2u, dex_file_data_.size());
+ CHECK_EQ(dex_file_data_[offset + 0], 0u);
+ CHECK_EQ(dex_file_data_[offset + 1], 0u);
+ dex_file_data_[offset + 0] = static_cast<uint8_t>(value >> 0);
+ dex_file_data_[offset + 1] = static_cast<uint8_t>(value >> 8);
+ }
+
+ std::map<std::string, IdxAndDataOffset> strings_;
+ std::map<std::string, uint32_t> types_;
+ std::map<FieldKey, uint32_t, FieldKeyComparator> fields_;
+ std::map<ProtoKey, IdxAndDataOffset, ProtoKeyComparator> protos_;
+ std::map<MethodKey, uint32_t, MethodKeyComparator> methods_;
+
+ std::vector<uint8_t> dex_file_data_;
+};
+
+} // namespace art
+
+#endif // ART_COMPILER_UTILS_TEST_DEX_FILE_BUILDER_H_