1 files changed, 0 insertions, 165 deletions
diff --git a/lib/profiler/profiler.h b/lib/profiler/profiler.h
deleted file mode 100644
index c71f63c..0000000
--- a/lib/profiler/profiler.h
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright (c) the JPEG XL Project Authors. All rights reserved.
-//
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#ifndef LIB_PROFILER_PROFILER_H_
-#define LIB_PROFILER_PROFILER_H_
-
-// High precision, low overhead time measurements. Returns exact call counts and
-// total elapsed time for user-defined 'zones' (code regions, i.e. C++ scopes).
-//
-// Usage: instrument regions of interest: { PROFILER_ZONE("name"); /*code*/ } or
-// void FuncToMeasure() { PROFILER_FUNC; /*code*/ }.
-// After all threads have exited any zones, invoke PROFILER_PRINT_RESULTS() to
-// print call counts and average durations [CPU cycles] to stdout, sorted in
-// descending order of total duration.
-
-// If zero, this file has no effect and no measurements will be recorded.
-#ifndef PROFILER_ENABLED
-#define PROFILER_ENABLED 0
-#endif
-#if PROFILER_ENABLED
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <hwy/aligned_allocator.h>
-#include <hwy/base.h>
-
-#include "lib/profiler/tsc_timer.h"
-
-#if HWY_COMPILER_MSVC
-#define PROFILER_PUBLIC
-#else
-#define PROFILER_PUBLIC __attribute__((visibility("default")))
-#endif
-
-namespace profiler {
-
-// Represents zone entry/exit events. POD.
-#pragma pack(push, 1)
-struct Packet {
-  // Computing a hash or string table is likely too expensive, and offsets
-  // from other libraries' string literals can be too large to combine them and
-  // a full-resolution timestamp into 64 bits.
-  uint64_t timestamp;
-  const char* name;  // nullptr for exit packets
-#if UINTPTR_MAX <= 0xFFFFFFFFu
-  uint32_t padding;
-#endif
-};
-#pragma pack(pop)
-static_assert(sizeof(Packet) == 16, "Wrong Packet size");
-
-class Results;  // pImpl
-
-// Per-thread packet storage, dynamically allocated and aligned.
-class ThreadSpecific {
-  static constexpr size_t kBufferCapacity = 64 / sizeof(Packet);
-
- public:
-  PROFILER_PUBLIC explicit ThreadSpecific();
-  PROFILER_PUBLIC ~ThreadSpecific();
-
-  // Depends on Zone => defined out of line.
-  PROFILER_PUBLIC void ComputeOverhead();
-
-  HWY_INLINE void WriteEntry(const char* name) { Write(name, TicksBefore()); }
-  HWY_INLINE void WriteExit() { Write(nullptr, TicksAfter()); }
-
-  PROFILER_PUBLIC void AnalyzeRemainingPackets();
-
-  // Accessors instead of public member for well-defined data layout.
-  void SetNext(ThreadSpecific* next) { next_ = next; }
-  ThreadSpecific* GetNext() const { return next_; }
-
-  Results& GetResults() { return *results_; }
-
- private:
-  PROFILER_PUBLIC void FlushBuffer();
-
-  // Write packet to buffer/storage, emptying them as needed.
-  void Write(const char* name, const uint64_t timestamp) {
-    if (buffer_size_ == kBufferCapacity) {  // Full
-      FlushBuffer();
-    }
-    buffer_[buffer_size_].name = name;
-    buffer_[buffer_size_].timestamp = timestamp;
-    ++buffer_size_;
-  }
-
-  // Write-combining buffer to avoid cache pollution. Must be the first
-  // non-static member to ensure cache-line alignment.
-  Packet buffer_[kBufferCapacity];
-  size_t buffer_size_ = 0;
-
-  // Contiguous storage for zone enter/exit packets.
-  const size_t max_packets_;
-  hwy::AlignedFreeUniquePtr<Packet[]> packets_;
-  size_t num_packets_;
-
-  // Linked list of all threads.
-  ThreadSpecific* next_ = nullptr;  // Owned, never released.
-
-  hwy::AlignedUniquePtr<Results> results_;
-};
-
-// RAII zone enter/exit recorder constructed by PROFILER_ZONE; also
-// responsible for initializing ThreadSpecific.
-class Zone {
- public:
-  HWY_NOINLINE explicit Zone(const char* name) {
-    HWY_FENCE;
-    ThreadSpecific* HWY_RESTRICT thread_specific = GetThreadSpecific();
-    if (HWY_UNLIKELY(thread_specific == nullptr)) {
-      thread_specific = InitThreadSpecific();
-    }
-
-    thread_specific->WriteEntry(name);
-  }
-
-  HWY_NOINLINE ~Zone() { GetThreadSpecific()->WriteExit(); }
-
-  // Call exactly once after all threads have exited all zones.
-  PROFILER_PUBLIC static void PrintResults();
-
- private:
-  // Returns reference to the thread's ThreadSpecific pointer (initially null).
-  // Function-local static avoids needing a separate definition.
-  static ThreadSpecific*& GetThreadSpecific() {
-    static thread_local ThreadSpecific* thread_specific;
-    return thread_specific;
-  }
-
-  // Non time-critical.
-  PROFILER_PUBLIC ThreadSpecific* InitThreadSpecific();
-};
-
-// Creates a zone starting from here until the end of the current scope.
-// Timestamps will be recorded when entering and exiting the zone.
-// To ensure the name pointer remains valid, we require it to be a string
-// literal (by merging with ""). We also compare strings by address.
-#define PROFILER_ZONE(name)             \
-  HWY_FENCE;                            \
-  const ::profiler::Zone zone("" name); \
-  HWY_FENCE
-
-// Creates a zone for an entire function (when placed at its beginning).
-// Shorter/more convenient than ZONE.
-#define PROFILER_FUNC                    \
-  HWY_FENCE;                             \
-  const ::profiler::Zone zone(__func__); \
-  HWY_FENCE
-
-#define PROFILER_PRINT_RESULTS ::profiler::Zone::PrintResults
-
-}  // namespace profiler
-
-#else  // !PROFILER_ENABLED
-#define PROFILER_ZONE(name)
-#define PROFILER_FUNC
-#define PROFILER_PRINT_RESULTS()
-#endif
-
-#endif  // LIB_PROFILER_PROFILER_H_