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-rw-r--r--runtime/jit/jit-inl.h69
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diff --git a/runtime/jit/jit-inl.h b/runtime/jit/jit-inl.h
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--- a/runtime/jit/jit-inl.h
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-/*
- * Copyright 2018 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_RUNTIME_JIT_JIT_INL_H_
-#define ART_RUNTIME_JIT_JIT_INL_H_
-
-#include "jit/jit.h"
-
-#include "art_method.h"
-#include "base/bit_utils.h"
-#include "thread.h"
-#include "runtime-inl.h"
-
-namespace art {
-namespace jit {
-
-inline bool Jit::ShouldUsePriorityThreadWeight(Thread* self) {
- return self->IsJitSensitiveThread() && Runtime::Current()->InJankPerceptibleProcessState();
-}
-
-inline void Jit::AddSamples(Thread* self,
- ArtMethod* method,
- uint16_t samples,
- bool with_backedges) {
- if (Jit::ShouldUsePriorityThreadWeight(self)) {
- samples *= PriorityThreadWeight();
- }
- uint32_t old_count = method->GetCounter();
- uint32_t new_count = old_count + samples;
-
- // The full check is fairly expensive so we just add to hotness most of the time,
- // and we do the full check only when some of the higher bits of the count change.
- // NB: The method needs to see the transitions of the counter past the thresholds.
- uint32_t old_batch = RoundDown(old_count, kJitSamplesBatchSize); // Clear lower bits.
- uint32_t new_batch = RoundDown(new_count, kJitSamplesBatchSize); // Clear lower bits.
- if (UNLIKELY(old_batch == 0)) {
- // For low sample counts, we check every time (which is important for tests).
- if (!MaybeCompileMethod(self, method, old_count, new_count, with_backedges)) {
- // Tests may check that the counter is 0 for methods that we never compile.
- return; // Ignore the samples for now and retry later.
- }
- } else if (UNLIKELY(old_batch != new_batch)) {
- // For high sample counts, we check only when we move past the batch boundary.
- if (!MaybeCompileMethod(self, method, old_batch, new_batch, with_backedges)) {
- // OSR compilation will ignore the samples if they don't have backedges.
- return; // Ignore the samples for now and retry later.
- }
- }
-
- method->SetCounter(new_count);
-}
-
-} // namespace jit
-} // namespace art
-
-#endif // ART_RUNTIME_JIT_JIT_INL_H_