diff --git a/lldb/include/lldb/Utility/Timer.h b/lldb/include/lldb/Utility/Timer.h index 91f9c57c03c1..edc064b23b57 100644 --- a/lldb/include/lldb/Utility/Timer.h +++ b/lldb/include/lldb/Utility/Timer.h @@ -25,6 +25,7 @@ public: class Category { public: explicit Category(const char *category_name); + llvm::StringRef GetName() { return m_name; } private: friend class Timer; diff --git a/lldb/source/Utility/Timer.cpp b/lldb/source/Utility/Timer.cpp index d55c9863117b..7ead51069529 100644 --- a/lldb/source/Utility/Timer.cpp +++ b/lldb/source/Utility/Timer.cpp @@ -7,6 +7,8 @@ //===----------------------------------------------------------------------===// #include "lldb/Utility/Timer.h" #include "lldb/Utility/Stream.h" +#include "llvm/Support/ManagedStatic.h" +#include "llvm/Support/Signposts.h" #include #include @@ -28,6 +30,9 @@ typedef std::vector TimerStack; static std::atomic g_categories; } // end of anonymous namespace +/// Allows llvm::Timer to emit signposts when supported. +static llvm::ManagedStatic Signposts; + std::atomic Timer::g_quiet(true); std::atomic Timer::g_display_depth(0); static std::mutex &GetFileMutex() { @@ -54,6 +59,7 @@ void Timer::SetQuiet(bool value) { g_quiet = value; } Timer::Timer(Timer::Category &category, const char *format, ...) : m_category(category), m_total_start(std::chrono::steady_clock::now()) { + Signposts->startInterval(this, m_category.GetName()); TimerStack &stack = GetTimerStackForCurrentThread(); stack.push_back(this); @@ -80,6 +86,8 @@ Timer::~Timer() { auto total_dur = stop_time - m_total_start; auto timer_dur = total_dur - m_child_duration; + Signposts->endInterval(this, m_category.GetName()); + TimerStack &stack = GetTimerStackForCurrentThread(); if (g_quiet && stack.size() <= g_display_depth) { std::lock_guard lock(GetFileMutex());