You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
2.1 KiB
61 lines
2.1 KiB
/* |
|
* 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 "base/logging.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. |
|
*/ |
|
if (code_item.insns_size_in_code_units_ >= UINT16_MAX / 4) { |
|
LOG(INFO) << "Method exceeds compiler instruction limit: " |
|
<< code_item.insns_size_in_code_units_ |
|
<< " in " << dex_file.PrettyMethod(method_idx); |
|
return true; |
|
} |
|
if (code_item.registers_size_ >= UINT16_MAX / 4) { |
|
LOG(INFO) << "Method exceeds compiler virtual register limit: " |
|
<< code_item.registers_size_ << " in " << dex_file.PrettyMethod(method_idx); |
|
return true; |
|
} |
|
return false; |
|
} |
|
|
|
} // namespace art
|
|
|