2049e188c6
If v8_enable_runtime_call_stats == false, we don't need TracingFlags::is_runtime_stats_enabled and can save a bit of code and needless overhead. Bug: v8:11299 Change-Id: Ia5ec51c29b2408b77b65984c5bba0ae16e0de243 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3024155 Reviewed-by: Patrick Thier <pthier@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#75983}
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_LOGGING_TRACING_FLAGS_H_
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#define V8_LOGGING_TRACING_FLAGS_H_
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#include <atomic>
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#include "src/base/macros.h"
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namespace v8 {
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namespace internal {
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// This struct contains a set of flags that can be modified from multiple
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// threads at runtime unlike the normal FLAG_-like flags which are not modified
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// after V8 instance is initialized.
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struct TracingFlags {
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static V8_EXPORT_PRIVATE std::atomic_uint runtime_stats;
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static V8_EXPORT_PRIVATE std::atomic_uint gc;
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static V8_EXPORT_PRIVATE std::atomic_uint gc_stats;
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static V8_EXPORT_PRIVATE std::atomic_uint ic_stats;
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static V8_EXPORT_PRIVATE std::atomic_uint zone_stats;
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#ifdef V8_RUNTIME_CALL_STATS
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static bool is_runtime_stats_enabled() {
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return runtime_stats.load(std::memory_order_relaxed) != 0;
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}
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#endif
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static bool is_gc_enabled() {
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return gc.load(std::memory_order_relaxed) != 0;
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}
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static bool is_gc_stats_enabled() {
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return gc_stats.load(std::memory_order_relaxed) != 0;
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}
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static bool is_ic_stats_enabled() {
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return ic_stats.load(std::memory_order_relaxed) != 0;
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}
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static bool is_zone_stats_enabled() {
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return zone_stats.load(std::memory_order_relaxed) != 0;
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}
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};
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} // namespace internal
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} // namespace v8
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#endif // V8_LOGGING_TRACING_FLAGS_H_
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