Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/ProfileData/ProfileCommon.h b/linux-x64/clang/include/llvm/ProfileData/ProfileCommon.h
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+//===- ProfileCommon.h - Common profiling APIs. -----------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains data structures and functions common to both instrumented
+// and sample profiling.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_PROFILEDATA_PROFILECOMMON_H
+#define LLVM_PROFILEDATA_PROFILECOMMON_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/IR/ProfileSummary.h"
+#include "llvm/ProfileData/InstrProf.h"
+#include "llvm/Support/Error.h"
+#include <algorithm>
+#include <cstdint>
+#include <functional>
+#include <map>
+#include <memory>
+#include <vector>
+
+namespace llvm {
+
+namespace sampleprof {
+
+class FunctionSamples;
+
+} // end namespace sampleprof
+
+inline const char *getHotSectionPrefix() { return ".hot"; }
+inline const char *getUnlikelySectionPrefix() { return ".unlikely"; }
+
+class ProfileSummaryBuilder {
+private:
+ /// We keep track of the number of times a count (block count or samples)
+ /// appears in the profile. The map is kept sorted in the descending order of
+ /// counts.
+ std::map<uint64_t, uint32_t, std::greater<uint64_t>> CountFrequencies;
+ std::vector<uint32_t> DetailedSummaryCutoffs;
+
+protected:
+ SummaryEntryVector DetailedSummary;
+ uint64_t TotalCount = 0;
+ uint64_t MaxCount = 0;
+ uint64_t MaxFunctionCount = 0;
+ uint32_t NumCounts = 0;
+ uint32_t NumFunctions = 0;
+
+ ProfileSummaryBuilder(std::vector<uint32_t> Cutoffs)
+ : DetailedSummaryCutoffs(std::move(Cutoffs)) {}
+ ~ProfileSummaryBuilder() = default;
+
+ inline void addCount(uint64_t Count);
+ void computeDetailedSummary();
+
+public:
+ /// \brief A vector of useful cutoff values for detailed summary.
+ static const ArrayRef<uint32_t> DefaultCutoffs;
+};
+
+class InstrProfSummaryBuilder final : public ProfileSummaryBuilder {
+ uint64_t MaxInternalBlockCount = 0;
+
+ inline void addEntryCount(uint64_t Count);
+ inline void addInternalCount(uint64_t Count);
+
+public:
+ InstrProfSummaryBuilder(std::vector<uint32_t> Cutoffs)
+ : ProfileSummaryBuilder(std::move(Cutoffs)) {}
+
+ void addRecord(const InstrProfRecord &);
+ std::unique_ptr<ProfileSummary> getSummary();
+};
+
+class SampleProfileSummaryBuilder final : public ProfileSummaryBuilder {
+public:
+ SampleProfileSummaryBuilder(std::vector<uint32_t> Cutoffs)
+ : ProfileSummaryBuilder(std::move(Cutoffs)) {}
+
+ void addRecord(const sampleprof::FunctionSamples &FS);
+ std::unique_ptr<ProfileSummary> getSummary();
+};
+
+/// This is called when a count is seen in the profile.
+void ProfileSummaryBuilder::addCount(uint64_t Count) {
+ TotalCount += Count;
+ if (Count > MaxCount)
+ MaxCount = Count;
+ NumCounts++;
+ CountFrequencies[Count]++;
+}
+
+} // end namespace llvm
+
+#endif // LLVM_PROFILEDATA_PROFILECOMMON_H