ART: Use CmdlineParser in dex2oat
Refactor dex2oat and the compiler to use the cmdline parser. In
an effort to standardize command-line parsing and make it easier
to add new properties in a principled manner.
Test: m test-art-host
Change-Id: Ia077a56234dbf579d7ca3430fef325b57aa06333
diff --git a/compiler/driver/compiler_options.cc b/compiler/driver/compiler_options.cc
index 538845d..b6cedff 100644
--- a/compiler/driver/compiler_options.cc
+++ b/compiler/driver/compiler_options.cc
@@ -18,7 +18,13 @@
#include <fstream>
+#include "android-base/stringprintf.h"
+
+#include "base/variant_map.h"
+#include "cmdline_parser.h"
+#include "compiler_options_map-inl.h"
#include "runtime.h"
+#include "simple_compiler_options_map.h"
namespace art {
@@ -71,115 +77,50 @@
(kIsTargetBuild || IsCoreImage() || Runtime::Current()->UseJitCompilation());
}
-void CompilerOptions::ParseHugeMethodMax(const StringPiece& option, UsageFn Usage) {
- ParseUintOption(option, "--huge-method-max", &huge_method_threshold_, Usage);
-}
-
-void CompilerOptions::ParseLargeMethodMax(const StringPiece& option, UsageFn Usage) {
- ParseUintOption(option, "--large-method-max", &large_method_threshold_, Usage);
-}
-
-void CompilerOptions::ParseSmallMethodMax(const StringPiece& option, UsageFn Usage) {
- ParseUintOption(option, "--small-method-max", &small_method_threshold_, Usage);
-}
-
-void CompilerOptions::ParseTinyMethodMax(const StringPiece& option, UsageFn Usage) {
- ParseUintOption(option, "--tiny-method-max", &tiny_method_threshold_, Usage);
-}
-
-void CompilerOptions::ParseNumDexMethods(const StringPiece& option, UsageFn Usage) {
- ParseUintOption(option, "--num-dex-methods", &num_dex_methods_threshold_, Usage);
-}
-
-void CompilerOptions::ParseInlineMaxCodeUnits(const StringPiece& option, UsageFn Usage) {
- ParseUintOption(option, "--inline-max-code-units", &inline_max_code_units_, Usage);
-}
-
-void CompilerOptions::ParseDumpInitFailures(const StringPiece& option,
- UsageFn Usage ATTRIBUTE_UNUSED) {
- DCHECK(option.starts_with("--dump-init-failures="));
- std::string file_name = option.substr(strlen("--dump-init-failures=")).data();
- init_failure_output_.reset(new std::ofstream(file_name));
+bool CompilerOptions::ParseDumpInitFailures(const std::string& option, std::string* error_msg) {
+ init_failure_output_.reset(new std::ofstream(option));
if (init_failure_output_.get() == nullptr) {
- LOG(ERROR) << "Failed to allocate ofstream";
+ *error_msg = "Failed to construct std::ofstream";
+ return false;
} else if (init_failure_output_->fail()) {
- LOG(ERROR) << "Failed to open " << file_name << " for writing the initialization "
- << "failures.";
+ *error_msg = android::base::StringPrintf(
+ "Failed to open %s for writing the initialization failures.", option.c_str());
init_failure_output_.reset();
- }
-}
-
-void CompilerOptions::ParseRegisterAllocationStrategy(const StringPiece& option,
- UsageFn Usage) {
- DCHECK(option.starts_with("--register-allocation-strategy="));
- StringPiece choice = option.substr(strlen("--register-allocation-strategy=")).data();
- if (choice == "linear-scan") {
- register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorLinearScan;
- } else if (choice == "graph-color") {
- register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorGraphColor;
- } else {
- Usage("Unrecognized register allocation strategy. Try linear-scan, or graph-color.");
- }
-}
-
-bool CompilerOptions::ParseCompilerOption(const StringPiece& option, UsageFn Usage) {
- if (option.starts_with("--compiler-filter=")) {
- const char* compiler_filter_string = option.substr(strlen("--compiler-filter=")).data();
- if (!CompilerFilter::ParseCompilerFilter(compiler_filter_string, &compiler_filter_)) {
- Usage("Unknown --compiler-filter value %s", compiler_filter_string);
- }
- } else if (option == "--compile-pic") {
- compile_pic_ = true;
- } else if (option.starts_with("--huge-method-max=")) {
- ParseHugeMethodMax(option, Usage);
- } else if (option.starts_with("--large-method-max=")) {
- ParseLargeMethodMax(option, Usage);
- } else if (option.starts_with("--small-method-max=")) {
- ParseSmallMethodMax(option, Usage);
- } else if (option.starts_with("--tiny-method-max=")) {
- ParseTinyMethodMax(option, Usage);
- } else if (option.starts_with("--num-dex-methods=")) {
- ParseNumDexMethods(option, Usage);
- } else if (option.starts_with("--inline-max-code-units=")) {
- ParseInlineMaxCodeUnits(option, Usage);
- } else if (option == "--generate-debug-info" || option == "-g") {
- generate_debug_info_ = true;
- } else if (option == "--no-generate-debug-info") {
- generate_debug_info_ = false;
- } else if (option == "--generate-mini-debug-info") {
- generate_mini_debug_info_ = true;
- } else if (option == "--no-generate-mini-debug-info") {
- generate_mini_debug_info_ = false;
- } else if (option == "--generate-build-id") {
- generate_build_id_ = true;
- } else if (option == "--no-generate-build-id") {
- generate_build_id_ = false;
- } else if (option == "--debuggable") {
- debuggable_ = true;
- } else if (option.starts_with("--top-k-profile-threshold=")) {
- ParseDouble(option.data(), '=', 0.0, 100.0, &top_k_profile_threshold_, Usage);
- } else if (option == "--abort-on-hard-verifier-error") {
- abort_on_hard_verifier_failure_ = true;
- } else if (option == "--no-abort-on-hard-verifier-error") {
- abort_on_hard_verifier_failure_ = false;
- } else if (option.starts_with("--dump-init-failures=")) {
- ParseDumpInitFailures(option, Usage);
- } else if (option.starts_with("--dump-cfg=")) {
- dump_cfg_file_name_ = option.substr(strlen("--dump-cfg=")).data();
- } else if (option == "--dump-cfg-append") {
- dump_cfg_append_ = true;
- } else if (option.starts_with("--register-allocation-strategy=")) {
- ParseRegisterAllocationStrategy(option, Usage);
- } else if (option.starts_with("--verbose-methods=")) {
- // TODO: rather than switch off compiler logging, make all VLOG(compiler) messages
- // conditional on having verbose methods.
- gLogVerbosity.compiler = false;
- Split(option.substr(strlen("--verbose-methods=")).ToString(), ',', &verbose_methods_);
- } else {
- // Option not recognized.
return false;
}
return true;
}
+bool CompilerOptions::ParseRegisterAllocationStrategy(const std::string& option,
+ std::string* error_msg) {
+ if (option == "linear-scan") {
+ register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorLinearScan;
+ } else if (option == "graph-color") {
+ register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorGraphColor;
+ } else {
+ *error_msg = "Unrecognized register allocation strategy. Try linear-scan, or graph-color.";
+ return false;
+ }
+ return true;
+}
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wframe-larger-than="
+
+bool CompilerOptions::ParseCompilerOptions(const std::vector<std::string>& options,
+ bool ignore_unrecognized,
+ std::string* error_msg) {
+ auto parser = CreateSimpleParser(ignore_unrecognized);
+ CmdlineResult parse_result = parser.Parse(options);
+ if (!parse_result.IsSuccess()) {
+ *error_msg = parse_result.GetMessage();
+ return false;
+ }
+
+ SimpleParseArgumentMap args = parser.ReleaseArgumentsMap();
+ return ReadCompilerOptions(args, this, error_msg);
+}
+
+#pragma GCC diagnostic pop
+
} // namespace art
diff --git a/compiler/driver/compiler_options.h b/compiler/driver/compiler_options.h
index a9372c4..311dbd5 100644
--- a/compiler/driver/compiler_options.h
+++ b/compiler/driver/compiler_options.h
@@ -231,7 +231,9 @@
return no_inline_from_;
}
- bool ParseCompilerOption(const StringPiece& option, UsageFn Usage);
+ bool ParseCompilerOptions(const std::vector<std::string>& options,
+ bool ignore_unrecognized,
+ std::string* error_msg);
void SetNonPic() {
compile_pic_ = false;
@@ -258,7 +260,7 @@
}
private:
- void ParseDumpInitFailures(const StringPiece& option, UsageFn Usage);
+ bool ParseDumpInitFailures(const std::string& option, std::string* error_msg);
void ParseDumpCfgPasses(const StringPiece& option, UsageFn Usage);
void ParseInlineMaxCodeUnits(const StringPiece& option, UsageFn Usage);
void ParseNumDexMethods(const StringPiece& option, UsageFn Usage);
@@ -266,7 +268,7 @@
void ParseSmallMethodMax(const StringPiece& option, UsageFn Usage);
void ParseLargeMethodMax(const StringPiece& option, UsageFn Usage);
void ParseHugeMethodMax(const StringPiece& option, UsageFn Usage);
- void ParseRegisterAllocationStrategy(const StringPiece& option, UsageFn Usage);
+ bool ParseRegisterAllocationStrategy(const std::string& option, std::string* error_msg);
CompilerFilter::Filter compiler_filter_;
size_t huge_method_threshold_;
@@ -327,6 +329,9 @@
friend class CommonCompilerTest;
friend class verifier::VerifierDepsTest;
+ template <class Base>
+ friend bool ReadCompilerOptions(Base& map, CompilerOptions* options, std::string* error_msg);
+
DISALLOW_COPY_AND_ASSIGN(CompilerOptions);
};
diff --git a/compiler/driver/compiler_options_map-inl.h b/compiler/driver/compiler_options_map-inl.h
new file mode 100644
index 0000000..9cb818a
--- /dev/null
+++ b/compiler/driver/compiler_options_map-inl.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2017 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_DRIVER_COMPILER_OPTIONS_MAP_INL_H_
+#define ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_INL_H_
+
+#include "compiler_options_map.h"
+
+#include <memory>
+
+#include "android-base/logging.h"
+#include "android-base/macros.h"
+#include "android-base/stringprintf.h"
+
+#include "base/macros.h"
+#include "cmdline_parser.h"
+#include "compiler_options.h"
+
+namespace art {
+
+template <class Base>
+inline bool ReadCompilerOptions(Base& map, CompilerOptions* options, std::string* error_msg) {
+ if (map.Exists(Base::CompilerFilter)) {
+ CompilerFilter::Filter compiler_filter;
+ if (!CompilerFilter::ParseCompilerFilter(map.Get(Base::CompilerFilter)->c_str(),
+ &compiler_filter)) {
+ *error_msg = android::base::StringPrintf("Unknown --compiler-filter value %s",
+ map.Get(Base::CompilerFilter)->c_str());
+ return false;
+ }
+ options->SetCompilerFilter(compiler_filter);
+ }
+ if (map.Exists(Base::PIC)) {
+ options->compile_pic_ = true;
+ }
+ map.AssignIfExists(Base::HugeMethodMaxThreshold, &options->huge_method_threshold_);
+ map.AssignIfExists(Base::LargeMethodMaxThreshold, &options->large_method_threshold_);
+ map.AssignIfExists(Base::SmallMethodMaxThreshold, &options->small_method_threshold_);
+ map.AssignIfExists(Base::TinyMethodMaxThreshold, &options->tiny_method_threshold_);
+ map.AssignIfExists(Base::NumDexMethodsThreshold, &options->num_dex_methods_threshold_);
+ map.AssignIfExists(Base::InlineMaxCodeUnitsThreshold, &options->inline_max_code_units_);
+ map.AssignIfExists(Base::GenerateDebugInfo, &options->generate_debug_info_);
+ map.AssignIfExists(Base::GenerateMiniDebugInfo, &options->generate_mini_debug_info_);
+ map.AssignIfExists(Base::GenerateBuildID, &options->generate_build_id_);
+ if (map.Exists(Base::Debuggable)) {
+ options->debuggable_ = true;
+ }
+ map.AssignIfExists(Base::TopKProfileThreshold, &options->top_k_profile_threshold_);
+ map.AssignIfExists(Base::AbortOnHardVerifierFailure, &options->abort_on_hard_verifier_failure_);
+ if (map.Exists(Base::DumpInitFailures)) {
+ if (!options->ParseDumpInitFailures(*map.Get(Base::DumpInitFailures), error_msg)) {
+ return false;
+ }
+ }
+ map.AssignIfExists(Base::DumpCFG, &options->dump_cfg_file_name_);
+ if (map.Exists(Base::DumpCFGAppend)) {
+ options->dump_cfg_append_ = true;
+ }
+ if (map.Exists(Base::RegisterAllocationStrategy)) {
+ if (!options->ParseRegisterAllocationStrategy(*map.Get(Base::DumpInitFailures), error_msg)) {
+ return false;
+ }
+ }
+ map.AssignIfExists(Base::VerboseMethods, &options->verbose_methods_);
+
+ return true;
+}
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wframe-larger-than="
+
+template <typename Map, typename Builder>
+inline void AddCompilerOptionsArgumentParserOptions(Builder& b) {
+ b.
+ Define("--compiler-filter=_")
+ .template WithType<std::string>()
+ .IntoKey(Map::CompilerFilter)
+
+ .Define("--compile-pic")
+ .IntoKey(Map::PIC)
+
+ .Define("--huge-method-max=_")
+ .template WithType<unsigned int>()
+ .IntoKey(Map::HugeMethodMaxThreshold)
+ .Define("--large-method-max=_")
+ .template WithType<unsigned int>()
+ .IntoKey(Map::LargeMethodMaxThreshold)
+ .Define("--small-method-max=_")
+ .template WithType<unsigned int>()
+ .IntoKey(Map::SmallMethodMaxThreshold)
+ .Define("--tiny-method-max=_")
+ .template WithType<unsigned int>()
+ .IntoKey(Map::TinyMethodMaxThreshold)
+ .Define("--num-dex-methods=_")
+ .template WithType<unsigned int>()
+ .IntoKey(Map::NumDexMethodsThreshold)
+ .Define("--inline-max-code-units=_")
+ .template WithType<unsigned int>()
+ .IntoKey(Map::InlineMaxCodeUnitsThreshold)
+
+ .Define({"--generate-debug-info", "-g", "--no-generate-debug-info"})
+ .WithValues({true, true, false})
+ .IntoKey(Map::GenerateDebugInfo)
+ .Define({"--generate-mini-debug-info", "--no-generate-mini-debug-info"})
+ .WithValues({true, false})
+ .IntoKey(Map::GenerateMiniDebugInfo)
+
+ .Define({"--generate-build-id", "--no-generate-build-id"})
+ .WithValues({true, false})
+ .IntoKey(Map::GenerateBuildID)
+
+ .Define("--debuggable")
+ .IntoKey(Map::Debuggable)
+
+ .Define("--top-k-profile-threshold=_")
+ .template WithType<double>().WithRange(0.0, 100.0)
+ .IntoKey(Map::TopKProfileThreshold)
+
+ .Define({"--abort-on-hard-verifier-error", "--no-abort-on-hard-verifier-error"})
+ .WithValues({true, false})
+ .IntoKey(Map::AbortOnHardVerifierFailure)
+
+ .Define("--dump-init-failures=_")
+ .template WithType<std::string>()
+ .IntoKey(Map::DumpInitFailures)
+
+ .Define("--dump-cfg=_")
+ .template WithType<std::string>()
+ .IntoKey(Map::DumpCFG)
+ .Define("--dump-cfg-append")
+ .IntoKey(Map::DumpCFGAppend)
+
+ .Define("--register-allocation-strategy=_")
+ .template WithType<std::string>()
+ .IntoKey(Map::RegisterAllocationStrategy)
+
+ .Define("--verbose-methods=_")
+ .template WithType<ParseStringList<','>>()
+ .IntoKey(Map::VerboseMethods);
+}
+
+#pragma GCC diagnostic pop
+
+} // namespace art
+
+#endif // ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_INL_H_
diff --git a/compiler/driver/compiler_options_map-storage.h b/compiler/driver/compiler_options_map-storage.h
new file mode 100644
index 0000000..756598d
--- /dev/null
+++ b/compiler/driver/compiler_options_map-storage.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 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_DRIVER_COMPILER_OPTIONS_MAP_STORAGE_H_
+#define ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_STORAGE_H_
+
+// Assumes:
+// * #include "compiler_options_map.h"
+// * namespace art
+//
+// Usage:
+// #define COMPILER_OPTIONS_MAP_TYPE TheTypeOfTheMap
+// #define COMPILER_OPTIONS_MAP_KEY_TYPE TheTypeOfTheMapsKey
+// #include "driver/compiler_options_map-storage.h
+
+#ifndef COMPILER_OPTIONS_MAP_TYPE
+#error "Expected COMPILER_OPTIONS_MAP_TYPE"
+#endif
+
+#ifndef COMPILER_OPTIONS_MAP_KEY_TYPE
+#error "Expected COMPILER_OPTIONS_MAP_KEY_TYPE"
+#endif
+
+#define COMPILER_OPTIONS_KEY(Type, Name, ...) \
+ template <typename Base, template <typename TV> class KeyType> \
+ const KeyType<Type> CompilerOptionsMap<Base, KeyType>::Name {__VA_ARGS__}; // NOLINT [readability/braces] [4]
+#include <driver/compiler_options_map.def>
+
+template struct CompilerOptionsMap<COMPILER_OPTIONS_MAP_TYPE, COMPILER_OPTIONS_MAP_KEY_TYPE>;
+
+#undef COMPILER_OPTIONS_MAP_TYPE
+#undef COMPILER_OPTIONS_MAP_KEY_TYPE
+
+#endif // ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_STORAGE_H_
+#undef ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_STORAGE_H_ // Guard is only for cpplint
diff --git a/compiler/driver/compiler_options_map.def b/compiler/driver/compiler_options_map.def
new file mode 100644
index 0000000..570bc5a
--- /dev/null
+++ b/compiler/driver/compiler_options_map.def
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 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 COMPILER_OPTIONS_KEY
+#error "Please #define COMPILER_OPTIONS_KEY before #including this file"
+#define COMPILER_OPTIONS_KEY(...) // Don't display errors in this file in IDEs.
+#endif
+
+// This file defines the list of keys for CompilerOptionsMap.
+// These can be used with CompilerOptionsMap.Get/Set/etc, once that template class has been
+// instantiated.
+//
+// Column Descriptions:
+// <<Type>> <<Key Name>> (<<Default Value>>)
+//
+// Default values are only used by Map::GetOrDefault(K<T>).
+// If a default value is omitted here, T{} is used as the default value, which is
+// almost-always the value of the type as if it was memset to all 0.
+//
+// Please keep the columns aligned if possible when adding new rows.
+//
+
+// Parse-able keys from the command line.
+
+// TODO: Add type parser.
+COMPILER_OPTIONS_KEY (std::string, CompilerFilter)
+COMPILER_OPTIONS_KEY (Unit, PIC)
+COMPILER_OPTIONS_KEY (unsigned int, HugeMethodMaxThreshold)
+COMPILER_OPTIONS_KEY (unsigned int, LargeMethodMaxThreshold)
+COMPILER_OPTIONS_KEY (unsigned int, SmallMethodMaxThreshold)
+COMPILER_OPTIONS_KEY (unsigned int, TinyMethodMaxThreshold)
+COMPILER_OPTIONS_KEY (unsigned int, NumDexMethodsThreshold)
+COMPILER_OPTIONS_KEY (unsigned int, InlineMaxCodeUnitsThreshold)
+COMPILER_OPTIONS_KEY (bool, GenerateDebugInfo)
+COMPILER_OPTIONS_KEY (bool, GenerateMiniDebugInfo)
+COMPILER_OPTIONS_KEY (bool, GenerateBuildID)
+COMPILER_OPTIONS_KEY (Unit, Debuggable)
+COMPILER_OPTIONS_KEY (double, TopKProfileThreshold)
+COMPILER_OPTIONS_KEY (bool, AbortOnHardVerifierFailure)
+COMPILER_OPTIONS_KEY (std::string, DumpInitFailures)
+COMPILER_OPTIONS_KEY (std::string, DumpCFG)
+COMPILER_OPTIONS_KEY (Unit, DumpCFGAppend)
+// TODO: Add type parser.
+COMPILER_OPTIONS_KEY (std::string, RegisterAllocationStrategy)
+COMPILER_OPTIONS_KEY (ParseStringList<','>, VerboseMethods)
+
+#undef COMPILER_OPTIONS_KEY
diff --git a/compiler/driver/compiler_options_map.h b/compiler/driver/compiler_options_map.h
new file mode 100644
index 0000000..b9bc8b6
--- /dev/null
+++ b/compiler/driver/compiler_options_map.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2017 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_DRIVER_COMPILER_OPTIONS_MAP_H_
+#define ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_H_
+
+#include <string>
+#include <vector>
+
+#include "base/variant_map.h"
+#include "cmdline_types.h"
+
+namespace art {
+
+// Defines a type-safe heterogeneous key->value map. This is to be used as the base for
+// an extended map.
+template <typename Base, template <typename TV> class KeyType>
+struct CompilerOptionsMap : VariantMap<Base, KeyType> {
+ // Make the next many usages of Key slightly shorter to type.
+ template <typename TValue>
+ using Key = KeyType<TValue>;
+
+ // List of key declarations, shorthand for 'static const Key<T> Name'
+#define COMPILER_OPTIONS_KEY(Type, Name, ...) static const Key<Type> (Name);
+#include "compiler_options_map.def"
+};
+
+#undef DECLARE_KEY
+
+} // namespace art
+
+#endif // ART_COMPILER_DRIVER_COMPILER_OPTIONS_MAP_H_
diff --git a/compiler/driver/simple_compiler_options_map.h b/compiler/driver/simple_compiler_options_map.h
new file mode 100644
index 0000000..3860da9
--- /dev/null
+++ b/compiler/driver/simple_compiler_options_map.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+// This file declares a completion of the CompilerOptionsMap and should be included into a
+// .cc file, only.
+
+#ifndef ART_COMPILER_DRIVER_SIMPLE_COMPILER_OPTIONS_MAP_H_
+#define ART_COMPILER_DRIVER_SIMPLE_COMPILER_OPTIONS_MAP_H_
+
+#include <memory>
+
+#include "compiler_options_map-inl.h"
+#include "base/variant_map.h"
+
+namespace art {
+
+template <typename TValue>
+struct SimpleParseArgumentMapKey : VariantMapKey<TValue> {
+ SimpleParseArgumentMapKey() {}
+ explicit SimpleParseArgumentMapKey(TValue default_value)
+ : VariantMapKey<TValue>(std::move(default_value)) {}
+ // Don't ODR-use constexpr default values, which means that Struct::Fields
+ // that are declared 'static constexpr T Name = Value' don't need to have a matching definition.
+};
+
+struct SimpleParseArgumentMap : CompilerOptionsMap<SimpleParseArgumentMap,
+ SimpleParseArgumentMapKey> {
+ // This 'using' line is necessary to inherit the variadic constructor.
+ using CompilerOptionsMap<SimpleParseArgumentMap, SimpleParseArgumentMapKey>::CompilerOptionsMap;
+};
+
+#define COMPILER_OPTIONS_MAP_TYPE SimpleParseArgumentMap
+#define COMPILER_OPTIONS_MAP_KEY_TYPE SimpleParseArgumentMapKey
+#include "compiler_options_map-storage.h"
+
+using Parser = CmdlineParser<SimpleParseArgumentMap, SimpleParseArgumentMapKey>;
+
+static inline Parser CreateSimpleParser(bool ignore_unrecognized) {
+ std::unique_ptr<Parser::Builder> parser_builder =
+ std::unique_ptr<Parser::Builder>(new Parser::Builder());
+
+ AddCompilerOptionsArgumentParserOptions<SimpleParseArgumentMap>(*parser_builder);
+
+ parser_builder->IgnoreUnrecognized(ignore_unrecognized);
+
+ return parser_builder->Build();
+}
+
+} // namespace art
+
+#endif // ART_COMPILER_DRIVER_SIMPLE_COMPILER_OPTIONS_MAP_H_