| /* |
| * Copyright (C) 2014 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. |
| */ |
| |
| #include "compiler.h" |
| |
| #include <android-base/logging.h> |
| |
| #include "base/macros.h" |
| #include "code_item_accessors-inl.h" |
| #include "driver/compiler_driver.h" |
| #include "optimizing/optimizing_compiler.h" |
| #include "utils.h" |
| |
| namespace art { |
| |
| Compiler* Compiler::Create(CompilerDriver* driver, Compiler::Kind kind) { |
| switch (kind) { |
| case kQuick: |
| // TODO: Remove Quick in options. |
| case kOptimizing: |
| return CreateOptimizingCompiler(driver); |
| |
| default: |
| LOG(FATAL) << "UNREACHABLE"; |
| UNREACHABLE(); |
| } |
| } |
| |
| bool Compiler::IsPathologicalCase(const DexFile::CodeItem& code_item, |
| uint32_t method_idx, |
| const DexFile& dex_file) { |
| /* |
| * Skip compilation for pathologically large methods - either by instruction count or num vregs. |
| * Dalvik uses 16-bit uints for instruction and register counts. We'll limit to a quarter |
| * of that, which also guarantees we cannot overflow our 16-bit internal Quick SSA name space. |
| */ |
| CodeItemDataAccessor accessor(&dex_file, &code_item); |
| if (accessor.InsnsSizeInCodeUnits() >= UINT16_MAX / 4) { |
| LOG(INFO) << "Method exceeds compiler instruction limit: " |
| << accessor.InsnsSizeInCodeUnits() |
| << " in " << dex_file.PrettyMethod(method_idx); |
| return true; |
| } |
| if (accessor.RegistersSize() >= UINT16_MAX / 4) { |
| LOG(INFO) << "Method exceeds compiler virtual register limit: " |
| << accessor.RegistersSize() << " in " << dex_file.PrettyMethod(method_idx); |
| return true; |
| } |
| return false; |
| } |
| |
| } // namespace art |