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/*
* 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.
*/
#ifndef ART_COMPILER_OPTIMIZING_OPTIMIZING_COMPILER_STATS_H_
#define ART_COMPILER_OPTIMIZING_OPTIMIZING_COMPILER_STATS_H_
#include <atomic>
#include <iomanip>
#include <string>
#include <type_traits>
#include <android-base/logging.h>
#include "base/atomic.h"
#include "base/globals.h"
namespace art {
enum class MethodCompilationStat {
kAttemptBytecodeCompilation = 0,
kAttemptIntrinsicCompilation,
kCompiledNativeStub,
kCompiledIntrinsic,
kCompiledBytecode,
kCHAInline,
kInlinedInvoke,
kReplacedInvokeWithSimplePattern,
kInstructionSimplifications,
kInstructionSimplificationsArch,
kUnresolvedMethod,
kUnresolvedField,
kUnresolvedFieldNotAFastAccess,
kRemovedCheckedCast,
kRemovedDeadInstruction,
kRemovedNullCheck,
kNotCompiledSkipped,
kNotCompiledInvalidBytecode,
kNotCompiledThrowCatchLoop,
kNotCompiledAmbiguousArrayOp,
kNotCompiledHugeMethod,
kNotCompiledLargeMethodNoBranches,
kNotCompiledMalformedOpcode,
kNotCompiledNoCodegen,
kNotCompiledPathological,
kNotCompiledSpaceFilter,
kNotCompiledUnhandledInstruction,
kNotCompiledUnsupportedIsa,
kNotCompiledVerificationError,
kNotCompiledVerifyAtRuntime,
kNotCompiledIrreducibleLoopAndStringInit,
kNotCompiledPhiEquivalentInOsr,
kInlinedMonomorphicCall,
kInlinedPolymorphicCall,
kMonomorphicCall,
kPolymorphicCall,
kMegamorphicCall,
kBooleanSimplified,
kIntrinsicRecognized,
kLoopInvariantMoved,
kLoopVectorized,
kLoopVectorizedIdiom,
kSelectGenerated,
kRemovedInstanceOf,
kInlinedInvokeVirtualOrInterface,
kImplicitNullCheckGenerated,
kExplicitNullCheckGenerated,
kSimplifyIf,
kSimplifyThrowingInvoke,
kInstructionSunk,
kNotInlinedUnresolvedEntrypoint,
kNotInlinedDexCache,
kNotInlinedStackMaps,
kNotInlinedEnvironmentBudget,
kNotInlinedInstructionBudget,
kNotInlinedLoopWithoutExit,
kNotInlinedIrreducibleLoop,
kNotInlinedAlwaysThrows,
kNotInlinedInfiniteLoop,
kNotInlinedTryCatch,
kNotInlinedRegisterAllocator,
kNotInlinedCannotBuild,
kNotInlinedNotVerified,
kNotInlinedCodeItem,
kNotInlinedWont,
kNotInlinedRecursiveBudget,
kNotInlinedProxy,
kConstructorFenceGeneratedNew,
kConstructorFenceGeneratedFinal,
kConstructorFenceRemovedLSE,
kConstructorFenceRemovedPFRA,
kConstructorFenceRemovedCFRE,
kBitstringTypeCheck,
kJitOutOfMemoryForCommit,
kLastStat
};
std::ostream& operator<<(std::ostream& os, const MethodCompilationStat& rhs);
class OptimizingCompilerStats {
public:
OptimizingCompilerStats() {
// The std::atomic<> default constructor leaves values uninitialized, so initialize them now.
Reset();
}
void RecordStat(MethodCompilationStat stat, uint32_t count = 1) {
size_t stat_index = static_cast<size_t>(stat);
DCHECK_LT(stat_index, arraysize(compile_stats_));
compile_stats_[stat_index] += count;
}
uint32_t GetStat(MethodCompilationStat stat) const {
size_t stat_index = static_cast<size_t>(stat);
DCHECK_LT(stat_index, arraysize(compile_stats_));
return compile_stats_[stat_index];
}
void Log() const {
uint32_t compiled_intrinsics = GetStat(MethodCompilationStat::kCompiledIntrinsic);
uint32_t compiled_native_stubs = GetStat(MethodCompilationStat::kCompiledNativeStub);
uint32_t bytecode_attempts =
GetStat(MethodCompilationStat::kAttemptBytecodeCompilation);
if (compiled_intrinsics == 0u && compiled_native_stubs == 0u && bytecode_attempts == 0u) {
LOG(INFO) << "Did not compile any method.";
} else {
uint32_t compiled_bytecode_methods =
GetStat(MethodCompilationStat::kCompiledBytecode);
// Successful intrinsic compilation preempts other compilation attempts but failed intrinsic
// compilation shall still count towards bytecode or native stub compilation attempts.
uint32_t num_compilation_attempts =
compiled_intrinsics + compiled_native_stubs + bytecode_attempts;
uint32_t num_successful_compilations =
compiled_intrinsics + compiled_native_stubs + compiled_bytecode_methods;
float compiled_percent = num_successful_compilations * 100.0f / num_compilation_attempts;
LOG(INFO) << "Attempted compilation of "
<< num_compilation_attempts << " methods: " << std::fixed << std::setprecision(2)
<< compiled_percent << "% (" << num_successful_compilations << ") compiled.";
for (size_t i = 0; i < arraysize(compile_stats_); ++i) {
if (compile_stats_[i] != 0) {
LOG(INFO) << "OptStat#" << static_cast<MethodCompilationStat>(i) << ": "
<< compile_stats_[i];
}
}
}
}
void AddTo(OptimizingCompilerStats* other_stats) {
for (size_t i = 0; i != arraysize(compile_stats_); ++i) {
uint32_t count = compile_stats_[i];
if (count != 0) {
other_stats->RecordStat(static_cast<MethodCompilationStat>(i), count);
}
}
}
void Reset() {
for (std::atomic<uint32_t>& stat : compile_stats_) {
stat = 0u;
}
}
private:
std::atomic<uint32_t> compile_stats_[static_cast<size_t>(MethodCompilationStat::kLastStat)];
DISALLOW_COPY_AND_ASSIGN(OptimizingCompilerStats);
};
inline void MaybeRecordStat(OptimizingCompilerStats* compiler_stats,
MethodCompilationStat stat,
uint32_t count = 1) {
if (compiler_stats != nullptr) {
compiler_stats->RecordStat(stat, count);
}
}
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_OPTIMIZING_COMPILER_STATS_H_
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