[llvm] r254687 - Revert "[llvm-profdata] Add support for weighted merge of profile data"

Nathan Slingerland via llvm-commits llvm-commits at lists.llvm.org
Thu Dec 3 18:13:59 PST 2015


Author: slingn
Date: Thu Dec  3 20:13:58 2015
New Revision: 254687

URL: http://llvm.org/viewvc/llvm-project?rev=254687&view=rev
Log:
Revert "[llvm-profdata] Add support for weighted merge of profile data"

This reverts commit b7250858d96b8ce567681214273ac0e62713c661.

Reverting in order to investigate Windows test failure.

Removed:
    llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-bar.profdata
    llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-foo.profdata
    llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-bar.proftext
    llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-foo.proftext
    llvm/trunk/test/tools/llvm-profdata/weight-instr.test
    llvm/trunk/test/tools/llvm-profdata/weight-sample.test
Modified:
    llvm/trunk/docs/CommandGuide/llvm-profdata.rst
    llvm/trunk/include/llvm/ProfileData/InstrProf.h
    llvm/trunk/include/llvm/ProfileData/InstrProfWriter.h
    llvm/trunk/include/llvm/ProfileData/SampleProf.h
    llvm/trunk/lib/ProfileData/InstrProfWriter.cpp
    llvm/trunk/tools/llvm-profdata/llvm-profdata.cpp
    llvm/trunk/unittests/ProfileData/InstrProfTest.cpp

Modified: llvm/trunk/docs/CommandGuide/llvm-profdata.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/CommandGuide/llvm-profdata.rst?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/docs/CommandGuide/llvm-profdata.rst (original)
+++ llvm/trunk/docs/CommandGuide/llvm-profdata.rst Thu Dec  3 20:13:58 2015
@@ -28,7 +28,7 @@ MERGE
 SYNOPSIS
 ^^^^^^^^
 
-:program:`llvm-profdata merge` [*options*] [*filename[:weight]...*]
+:program:`llvm-profdata merge` [*options*] [*filenames...*]
 
 DESCRIPTION
 ^^^^^^^^^^^
@@ -37,10 +37,6 @@ DESCRIPTION
 generated by PGO instrumentation and merges them together into a single
 indexed profile data file.
 
-The profile counts in each input file can be scaled (multiplied) by specifying
-``<filename>:<weight>``, where `<weight>` is a decimal integer >= 1.
-A default weight of 1 is assumed if only `<filename>` is given.
-
 OPTIONS
 ^^^^^^^
 

Modified: llvm/trunk/include/llvm/ProfileData/InstrProf.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ProfileData/InstrProf.h?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ProfileData/InstrProf.h (original)
+++ llvm/trunk/include/llvm/ProfileData/InstrProf.h Thu Dec  3 20:13:58 2015
@@ -218,8 +218,7 @@ struct InstrProfValueSiteRecord {
   }
 
   /// Merge data from another InstrProfValueSiteRecord
-  /// Optionally scale merged counts by \p Weight.
-  void mergeValueData(InstrProfValueSiteRecord &Input, uint64_t Weight = 1) {
+  void mergeValueData(InstrProfValueSiteRecord &Input) {
     this->sortByTargetValues();
     Input.sortByTargetValues();
     auto I = ValueData.begin();
@@ -229,11 +228,7 @@ struct InstrProfValueSiteRecord {
       while (I != IE && I->Value < J->Value)
         ++I;
       if (I != IE && I->Value == J->Value) {
-        // TODO: Check for counter overflow and return error if it occurs.
-        uint64_t JCount = J->Count;
-        if (Weight > 1)
-          JCount = SaturatingMultiply(JCount, Weight);
-        I->Count = SaturatingAdd(I->Count, JCount);
+        I->Count = SaturatingAdd(I->Count, J->Count);
         ++I;
         continue;
       }
@@ -279,8 +274,7 @@ struct InstrProfRecord {
                            ValueMapType *HashKeys);
 
   /// Merge the counts in \p Other into this one.
-  /// Optionally scale merged counts by \p Weight.
-  inline instrprof_error merge(InstrProfRecord &Other, uint64_t Weight = 1);
+  inline instrprof_error merge(InstrProfRecord &Other);
 
   /// Used by InstrProfWriter: update the value strings to commoned strings in
   /// the writer instance.
@@ -332,9 +326,7 @@ private:
   }
 
   // Merge Value Profile data from Src record to this record for ValueKind.
-  // Scale merged value counts by \p Weight.
-  instrprof_error mergeValueProfData(uint32_t ValueKind, InstrProfRecord &Src,
-                                     uint64_t Weight) {
+  instrprof_error mergeValueProfData(uint32_t ValueKind, InstrProfRecord &Src) {
     uint32_t ThisNumValueSites = getNumValueSites(ValueKind);
     uint32_t OtherNumValueSites = Src.getNumValueSites(ValueKind);
     if (ThisNumValueSites != OtherNumValueSites)
@@ -344,7 +336,7 @@ private:
     std::vector<InstrProfValueSiteRecord> &OtherSiteRecords =
         Src.getValueSitesForKind(ValueKind);
     for (uint32_t I = 0; I < ThisNumValueSites; I++)
-      ThisSiteRecords[I].mergeValueData(OtherSiteRecords[I], Weight);
+      ThisSiteRecords[I].mergeValueData(OtherSiteRecords[I]);
     return instrprof_error::success;
   }
 };
@@ -430,8 +422,7 @@ void InstrProfRecord::updateStrings(Inst
       VData.Value = (uint64_t)StrTab->insertString((const char *)VData.Value);
 }
 
-instrprof_error InstrProfRecord::merge(InstrProfRecord &Other,
-                                       uint64_t Weight) {
+instrprof_error InstrProfRecord::merge(InstrProfRecord &Other) {
   // If the number of counters doesn't match we either have bad data
   // or a hash collision.
   if (Counts.size() != Other.Counts.size())
@@ -441,19 +432,13 @@ instrprof_error InstrProfRecord::merge(I
 
   for (size_t I = 0, E = Other.Counts.size(); I < E; ++I) {
     bool ResultOverflowed;
-    uint64_t OtherCount = Other.Counts[I];
-    if (Weight > 1) {
-      OtherCount = SaturatingMultiply(OtherCount, Weight, ResultOverflowed);
-      if (ResultOverflowed)
-        Result = instrprof_error::counter_overflow;
-    }
-    Counts[I] = SaturatingAdd(Counts[I], OtherCount, ResultOverflowed);
+    Counts[I] = SaturatingAdd(Counts[I], Other.Counts[I], ResultOverflowed);
     if (ResultOverflowed)
       Result = instrprof_error::counter_overflow;
   }
 
   for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; ++Kind) {
-    instrprof_error MergeValueResult = mergeValueProfData(Kind, Other, Weight);
+    instrprof_error MergeValueResult = mergeValueProfData(Kind, Other);
     if (MergeValueResult != instrprof_error::success)
       Result = MergeValueResult;
   }

Modified: llvm/trunk/include/llvm/ProfileData/InstrProfWriter.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ProfileData/InstrProfWriter.h?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ProfileData/InstrProfWriter.h (original)
+++ llvm/trunk/include/llvm/ProfileData/InstrProfWriter.h Thu Dec  3 20:13:58 2015
@@ -39,8 +39,8 @@ public:
   void updateStringTableReferences(InstrProfRecord &I);
   /// Add function counts for the given function. If there are already counts
   /// for this function and the hash and number of counts match, each counter is
-  /// summed. Optionally scale counts by \p Weight.
-  std::error_code addRecord(InstrProfRecord &&I, uint64_t Weight = 1);
+  /// summed.
+  std::error_code addRecord(InstrProfRecord &&I);
   /// Write the profile to \c OS
   void write(raw_fd_ostream &OS);
   /// Write the profile in text format to \c OS

Modified: llvm/trunk/include/llvm/ProfileData/SampleProf.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ProfileData/SampleProf.h?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ProfileData/SampleProf.h (original)
+++ llvm/trunk/include/llvm/ProfileData/SampleProf.h Thu Dec  3 20:13:58 2015
@@ -173,25 +173,19 @@ public:
   SampleRecord() : NumSamples(0), CallTargets() {}
 
   /// Increment the number of samples for this record by \p S.
-  /// Optionally scale sample count \p S by \p Weight.
   ///
   /// Sample counts accumulate using saturating arithmetic, to avoid wrapping
   /// around unsigned integers.
-  void addSamples(uint64_t S, uint64_t Weight = 1) {
-    if (Weight > 1)
-      S = SaturatingMultiply(S, Weight);
+  void addSamples(uint64_t S) {
     NumSamples = SaturatingAdd(NumSamples, S);
   }
 
   /// Add called function \p F with samples \p S.
-  /// Optionally scale sample count \p S by \p Weight.
   ///
   /// Sample counts accumulate using saturating arithmetic, to avoid wrapping
   /// around unsigned integers.
-  void addCalledTarget(StringRef F, uint64_t S, uint64_t Weight = 1) {
+  void addCalledTarget(StringRef F, uint64_t S) {
     uint64_t &TargetSamples = CallTargets[F];
-    if (Weight > 1)
-      S = SaturatingMultiply(S, Weight);
     TargetSamples = SaturatingAdd(TargetSamples, S);
   }
 
@@ -202,11 +196,10 @@ public:
   const CallTargetMap &getCallTargets() const { return CallTargets; }
 
   /// Merge the samples in \p Other into this record.
-  /// Optionally scale sample counts by \p Weight.
-  void merge(const SampleRecord &Other, uint64_t Weight = 1) {
-    addSamples(Other.getSamples(), Weight);
+  void merge(const SampleRecord &Other) {
+    addSamples(Other.getSamples());
     for (const auto &I : Other.getCallTargets())
-      addCalledTarget(I.first(), I.second, Weight);
+      addCalledTarget(I.first(), I.second);
   }
 
   void print(raw_ostream &OS, unsigned Indent) const;
@@ -233,26 +226,16 @@ public:
   FunctionSamples() : TotalSamples(0), TotalHeadSamples(0) {}
   void print(raw_ostream &OS = dbgs(), unsigned Indent = 0) const;
   void dump() const;
-  void addTotalSamples(uint64_t Num, uint64_t Weight = 1) {
-    if (Weight > 1)
-      Num = SaturatingMultiply(Num, Weight);
-    TotalSamples += Num;
-  }
-  void addHeadSamples(uint64_t Num, uint64_t Weight = 1) {
-    if (Weight > 1)
-      Num = SaturatingMultiply(Num, Weight);
-    TotalHeadSamples += Num;
-  }
-  void addBodySamples(uint32_t LineOffset, uint32_t Discriminator, uint64_t Num,
-                      uint64_t Weight = 1) {
-    BodySamples[LineLocation(LineOffset, Discriminator)].addSamples(Num,
-                                                                    Weight);
+  void addTotalSamples(uint64_t Num) { TotalSamples += Num; }
+  void addHeadSamples(uint64_t Num) { TotalHeadSamples += Num; }
+  void addBodySamples(uint32_t LineOffset, uint32_t Discriminator,
+                      uint64_t Num) {
+    BodySamples[LineLocation(LineOffset, Discriminator)].addSamples(Num);
   }
   void addCalledTargetSamples(uint32_t LineOffset, uint32_t Discriminator,
-                              std::string FName, uint64_t Num,
-                              uint64_t Weight = 1) {
-    BodySamples[LineLocation(LineOffset, Discriminator)].addCalledTarget(
-        FName, Num, Weight);
+                              std::string FName, uint64_t Num) {
+    BodySamples[LineLocation(LineOffset, Discriminator)].addCalledTarget(FName,
+                                                                         Num);
   }
 
   /// Return the number of samples collected at the given location.
@@ -301,19 +284,18 @@ public:
   }
 
   /// Merge the samples in \p Other into this one.
-  /// Optionally scale samples by \p Weight.
-  void merge(const FunctionSamples &Other, uint64_t Weight = 1) {
-    addTotalSamples(Other.getTotalSamples(), Weight);
-    addHeadSamples(Other.getHeadSamples(), Weight);
+  void merge(const FunctionSamples &Other) {
+    addTotalSamples(Other.getTotalSamples());
+    addHeadSamples(Other.getHeadSamples());
     for (const auto &I : Other.getBodySamples()) {
       const LineLocation &Loc = I.first;
       const SampleRecord &Rec = I.second;
-      BodySamples[Loc].merge(Rec, Weight);
+      BodySamples[Loc].merge(Rec);
     }
     for (const auto &I : Other.getCallsiteSamples()) {
       const CallsiteLocation &Loc = I.first;
       const FunctionSamples &Rec = I.second;
-      functionSamplesAt(Loc).merge(Rec, Weight);
+      functionSamplesAt(Loc).merge(Rec);
     }
   }
 

Modified: llvm/trunk/lib/ProfileData/InstrProfWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ProfileData/InstrProfWriter.cpp?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/lib/ProfileData/InstrProfWriter.cpp (original)
+++ llvm/trunk/lib/ProfileData/InstrProfWriter.cpp Thu Dec  3 20:13:58 2015
@@ -98,8 +98,7 @@ void InstrProfWriter::updateStringTableR
   I.updateStrings(&StringTable);
 }
 
-std::error_code InstrProfWriter::addRecord(InstrProfRecord &&I,
-                                           uint64_t Weight) {
+std::error_code InstrProfWriter::addRecord(InstrProfRecord &&I) {
   updateStringTableReferences(I);
   auto &ProfileDataMap = FunctionData[I.Name];
 
@@ -114,18 +113,9 @@ std::error_code InstrProfWriter::addReco
     // We've never seen a function with this name and hash, add it.
     Dest = std::move(I);
     Result = instrprof_error::success;
-    if (Weight > 1) {
-      for (auto &Count : Dest.Counts) {
-        bool Overflowed;
-        Count = SaturatingMultiply(Count, Weight, Overflowed);
-        if (Overflowed && Result == instrprof_error::success) {
-          Result = instrprof_error::counter_overflow;
-        }
-      }
-    }
   } else {
     // We're updating a function we've seen before.
-    Result = Dest.merge(I, Weight);
+    Result = Dest.merge(I);
   }
 
   // We keep track of the max function count as we go for simplicity.

Removed: llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-bar.profdata
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-bar.profdata?rev=254686&view=auto
==============================================================================
Binary files llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-bar.profdata (original) and llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-bar.profdata (removed) differ

Removed: llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-foo.profdata
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-foo.profdata?rev=254686&view=auto
==============================================================================
Binary files llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-foo.profdata (original) and llvm/trunk/test/tools/llvm-profdata/Inputs/weight-instr-foo.profdata (removed) differ

Removed: llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-bar.proftext
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-bar.proftext?rev=254686&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-bar.proftext (original)
+++ llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-bar.proftext (removed)
@@ -1,8 +0,0 @@
-bar:1772037:35370
- 17: 35370
- 18: 35370
- 19: 7005
- 20: 29407
- 21: 12170
- 23: 18150 bar:19829
- 25: 36666

Removed: llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-foo.proftext
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-foo.proftext?rev=254686&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-foo.proftext (original)
+++ llvm/trunk/test/tools/llvm-profdata/Inputs/weight-sample-foo.proftext (removed)
@@ -1,8 +0,0 @@
-foo:1763288:35327
- 7: 35327
- 8: 35327
- 9: 6930
- 10: 29341
- 11: 11906
- 13: 18185 foo:19531
- 15: 36458

Removed: llvm/trunk/test/tools/llvm-profdata/weight-instr.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-profdata/weight-instr.test?rev=254686&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-profdata/weight-instr.test (original)
+++ llvm/trunk/test/tools/llvm-profdata/weight-instr.test (removed)
@@ -1,55 +0,0 @@
-Tests for weighted merge of instrumented profiles.
-
-1- Merge the foo and bar profiles with unity weight and verify the combined output
-RUN: llvm-profdata merge --instr %p/Inputs/weight-instr-bar.profdata:1 %p/Inputs/weight-instr-foo.profdata:1 -o %t
-RUN: llvm-profdata show --instr -all-functions %t | FileCheck %s --check-prefix=WEIGHT1
-WEIGHT1: Counters:
-WEIGHT1:   usage:
-WEIGHT1:     Hash: 0x0000000000000000
-WEIGHT1:     Counters: 1
-WEIGHT1:     Function count: 0
-WEIGHT1:   foo:
-WEIGHT1:     Hash: 0x000000000000028a
-WEIGHT1:     Counters: 3
-WEIGHT1:     Function count: 866988873
-WEIGHT1:   bar:
-WEIGHT1:     Hash: 0x000000000000028a
-WEIGHT1:     Counters: 3
-WEIGHT1:     Function count: 866988873
-WEIGHT1:   main:
-WEIGHT1:     Hash: 0x7d31c47ea98f8248
-WEIGHT1:     Counters: 60
-WEIGHT1:     Function count: 2
-WEIGHT1: Functions shown: 4
-WEIGHT1: Total functions: 4
-WEIGHT1: Maximum function count: 866988873
-WEIGHT1: Maximum internal block count: 267914296
-
-2- Merge the foo and bar profiles with weight 3x and 5x respectively and verify the combined output
-RUN: llvm-profdata merge --instr %p/Inputs/weight-instr-bar.profdata:3 %p/Inputs/weight-instr-foo.profdata:5 -o %t
-RUN: llvm-profdata show --instr -all-functions %t | FileCheck %s --check-prefix=WEIGHT2
-WEIGHT2: Counters:
-WEIGHT2:   usage:
-WEIGHT2:     Hash: 0x0000000000000000
-WEIGHT2:     Counters: 1
-WEIGHT2:     Function count: 0
-WEIGHT2:   foo:
-WEIGHT2:     Hash: 0x000000000000028a
-WEIGHT2:     Counters: 3
-WEIGHT2:     Function count: 4334944365
-WEIGHT2:   bar:
-WEIGHT2:     Hash: 0x000000000000028a
-WEIGHT2:     Counters: 3
-WEIGHT2:     Function count: 2600966619
-WEIGHT2:   main:
-WEIGHT2:     Hash: 0x7d31c47ea98f8248
-WEIGHT2:     Counters: 60
-WEIGHT2:     Function count: 8
-WEIGHT2: Functions shown: 4
-WEIGHT2: Total functions: 4
-WEIGHT2: Maximum function count: 4334944365
-WEIGHT2: Maximum internal block count: 1339571480
-
-3- Bad merge: foo and bar profiles with invalid weights
-RUN: not llvm-profdata merge --instr %p/Inputs/weight-instr-bar.profdata:3 %p/Inputs/weight-instr-foo.profdata:-5 -o %t.out 2>&1 | FileCheck %s --check-prefix=ERROR3
-ERROR3: error: Input weight must be a positive integer.

Removed: llvm/trunk/test/tools/llvm-profdata/weight-sample.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-profdata/weight-sample.test?rev=254686&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-profdata/weight-sample.test (original)
+++ llvm/trunk/test/tools/llvm-profdata/weight-sample.test (removed)
@@ -1,43 +0,0 @@
-Tests for weighted merge of sample profiles.
-
-1- Merge the foo and bar profiles with unity weight and verify the combined output
-RUN: llvm-profdata merge --sample --text %p/Inputs/weight-sample-bar.proftext:1 %p/Inputs/weight-sample-foo.proftext:1 -o - | FileCheck %s --check-prefix=WEIGHT1
-WEIGHT1: foo:1763288:35327
-WEIGHT1:  7: 35327
-WEIGHT1:  8: 35327
-WEIGHT1:  9: 6930
-WEIGHT1:  10: 29341
-WEIGHT1:  11: 11906
-WEIGHT1:  13: 18185 foo:19531
-WEIGHT1:  15: 36458
-WEIGHT1: bar:1772037:35370
-WEIGHT1:  17: 35370
-WEIGHT1:  18: 35370
-WEIGHT1:  19: 7005
-WEIGHT1:  20: 29407
-WEIGHT1:  21: 12170
-WEIGHT1:  23: 18150 bar:19829
-WEIGHT1:  25: 36666
-
-2- Merge the foo and bar profiles with weight 3x and 5x respectively and verify the combined output
-RUN: llvm-profdata merge --sample --text %p/Inputs/weight-sample-bar.proftext:3 %p/Inputs/weight-sample-foo.proftext:5 -o - | FileCheck %s --check-prefix=WEIGHT2
-WEIGHT2: foo:8816440:176635
-WEIGHT2:  7: 176635
-WEIGHT2:  8: 176635
-WEIGHT2:  9: 34650
-WEIGHT2:  10: 146705
-WEIGHT2:  11: 59530
-WEIGHT2:  13: 90925 foo:97655
-WEIGHT2:  15: 182290
-WEIGHT2: bar:5316111:106110
-WEIGHT2:  17: 106110
-WEIGHT2:  18: 106110
-WEIGHT2:  19: 21015
-WEIGHT2:  20: 88221
-WEIGHT2:  21: 36510
-WEIGHT2:  23: 54450 bar:59487
-WEIGHT2:  25: 109998
-
-3- Bad merge: foo and bar profiles with invalid weights
-RUN: not llvm-profdata merge --sample --text %p/Inputs/weight-sample-bar.proftext:3 %p/Inputs/weight-sample-foo.proftext:-5 -o %t.out 2>&1 | FileCheck %s --check-prefix=ERROR3
-ERROR3: error: Input weight must be a positive integer.

Modified: llvm/trunk/tools/llvm-profdata/llvm-profdata.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-profdata/llvm-profdata.cpp?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-profdata/llvm-profdata.cpp (original)
+++ llvm/trunk/tools/llvm-profdata/llvm-profdata.cpp Thu Dec  3 20:13:58 2015
@@ -12,7 +12,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/SmallSet.h"
-#include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/ProfileData/InstrProfReader.h"
@@ -28,7 +27,6 @@
 #include "llvm/Support/PrettyStackTrace.h"
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/raw_ostream.h"
-#include <tuple>
 
 using namespace llvm;
 
@@ -95,17 +93,7 @@ static void handleMergeWriterError(std::
   }
 }
 
-struct WeightedFile {
-  StringRef Filename;
-  uint64_t Weight;
-
-  WeightedFile() {}
-
-  WeightedFile(StringRef F, uint64_t W) : Filename{F}, Weight{W} {}
-};
-typedef SmallVector<WeightedFile, 5> WeightedFileVector;
-
-static void mergeInstrProfile(const WeightedFileVector &Inputs,
+static void mergeInstrProfile(const cl::list<std::string> &Inputs,
                               StringRef OutputFilename,
                               ProfileFormat OutputFormat) {
   if (OutputFilename.compare("-") == 0)
@@ -121,21 +109,21 @@ static void mergeInstrProfile(const Weig
 
   InstrProfWriter Writer;
   SmallSet<std::error_code, 4> WriterErrorCodes;
-  for (const auto &Input : Inputs) {
-    auto ReaderOrErr = InstrProfReader::create(Input.Filename);
+  for (const auto &Filename : Inputs) {
+    auto ReaderOrErr = InstrProfReader::create(Filename);
     if (std::error_code ec = ReaderOrErr.getError())
-      exitWithErrorCode(ec, Input.Filename);
+      exitWithErrorCode(ec, Filename);
 
     auto Reader = std::move(ReaderOrErr.get());
     for (auto &I : *Reader) {
-      if (std::error_code EC = Writer.addRecord(std::move(I), Input.Weight)) {
+      if (std::error_code EC = Writer.addRecord(std::move(I))) {
         // Only show hint the first time an error occurs.
         bool firstTime = WriterErrorCodes.insert(EC).second;
-        handleMergeWriterError(EC, Input.Filename, I.Name, firstTime);
+        handleMergeWriterError(EC, Filename, I.Name, firstTime);
       }
     }
     if (Reader->hasError())
-      exitWithErrorCode(Reader->getError(), Input.Filename);
+      exitWithErrorCode(Reader->getError(), Filename);
   }
   if (OutputFormat == PF_Text)
     Writer.writeText(Output);
@@ -147,7 +135,7 @@ static sampleprof::SampleProfileFormat F
     sampleprof::SPF_None, sampleprof::SPF_Text, sampleprof::SPF_Binary,
     sampleprof::SPF_GCC};
 
-static void mergeSampleProfile(const WeightedFileVector &Inputs,
+static void mergeSampleProfile(const cl::list<std::string> &Inputs,
                                StringRef OutputFilename,
                                ProfileFormat OutputFormat) {
   using namespace sampleprof;
@@ -159,11 +147,11 @@ static void mergeSampleProfile(const Wei
   auto Writer = std::move(WriterOrErr.get());
   StringMap<FunctionSamples> ProfileMap;
   SmallVector<std::unique_ptr<sampleprof::SampleProfileReader>, 5> Readers;
-  for (const auto &Input : Inputs) {
+  for (const auto &Filename : Inputs) {
     auto ReaderOrErr =
-        SampleProfileReader::create(Input.Filename, getGlobalContext());
+        SampleProfileReader::create(Filename, getGlobalContext());
     if (std::error_code EC = ReaderOrErr.getError())
-      exitWithErrorCode(EC, Input.Filename);
+      exitWithErrorCode(EC, Filename);
 
     // We need to keep the readers around until after all the files are
     // read so that we do not lose the function names stored in each
@@ -172,7 +160,7 @@ static void mergeSampleProfile(const Wei
     Readers.push_back(std::move(ReaderOrErr.get()));
     const auto Reader = Readers.back().get();
     if (std::error_code EC = Reader->read())
-      exitWithErrorCode(EC, Input.Filename);
+      exitWithErrorCode(EC, Filename);
 
     StringMap<FunctionSamples> &Profiles = Reader->getProfiles();
     for (StringMap<FunctionSamples>::iterator I = Profiles.begin(),
@@ -180,38 +168,15 @@ static void mergeSampleProfile(const Wei
          I != E; ++I) {
       StringRef FName = I->first();
       FunctionSamples &Samples = I->second;
-      ProfileMap[FName].merge(Samples, Input.Weight);
+      ProfileMap[FName].merge(Samples);
     }
   }
   Writer->write(ProfileMap);
 }
 
-static void parseInputFiles(const cl::list<std::string> &Inputs,
-                            WeightedFileVector &WeightedInputs) {
-  WeightedInputs.reserve(Inputs.size());
-
-  for (StringRef Input : Inputs) {
-    StringRef FileName;
-    StringRef WeightStr;
-    std::tie(FileName, WeightStr) = Input.rsplit(':');
-    if (WeightStr.empty() || sys::fs::exists(Input)) {
-      // No weight specified or valid path containing delimiter.
-      WeightedInputs.push_back(WeightedFile(Input, 1));
-    } else {
-      // Input weight specified.
-      uint64_t Weight;
-      if (WeightStr.getAsInteger(10, Weight) || Weight < 1) {
-        // Invalid input weight.
-        exitWithError("Input weight must be a positive integer.");
-      }
-      WeightedInputs.push_back(WeightedFile(FileName, Weight));
-    }
-  }
-}
-
 static int merge_main(int argc, const char *argv[]) {
   cl::list<std::string> Inputs(cl::Positional, cl::Required, cl::OneOrMore,
-                               cl::desc("<filename[:weight]...>"));
+                               cl::desc("<filenames...>"));
 
   cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
                                       cl::init("-"), cl::Required,
@@ -233,13 +198,10 @@ static int merge_main(int argc, const ch
 
   cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
 
-  WeightedFileVector WeightedInputs;
-  parseInputFiles(Inputs, WeightedInputs);
-
   if (ProfileKind == instr)
-    mergeInstrProfile(WeightedInputs, OutputFilename, OutputFormat);
+    mergeInstrProfile(Inputs, OutputFilename, OutputFormat);
   else
-    mergeSampleProfile(WeightedInputs, OutputFilename, OutputFormat);
+    mergeSampleProfile(Inputs, OutputFilename, OutputFormat);
 
   return 0;
 }

Modified: llvm/trunk/unittests/ProfileData/InstrProfTest.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ProfileData/InstrProfTest.cpp?rev=254687&r1=254686&r2=254687&view=diff
==============================================================================
--- llvm/trunk/unittests/ProfileData/InstrProfTest.cpp (original)
+++ llvm/trunk/unittests/ProfileData/InstrProfTest.cpp Thu Dec  3 20:13:58 2015
@@ -490,24 +490,4 @@ TEST_F(InstrProfTest, get_max_function_c
   ASSERT_EQ(1ULL << 63, Reader->getMaximumFunctionCount());
 }
 
-TEST_F(InstrProfTest, get_weighted_function_counts) {
-  InstrProfRecord Record1("foo", 0x1234, {1, 2});
-  InstrProfRecord Record2("foo", 0x1235, {3, 4});
-  Writer.addRecord(std::move(Record1), 3);
-  Writer.addRecord(std::move(Record2), 5);
-  auto Profile = Writer.writeBuffer();
-  readProfile(std::move(Profile));
-
-  std::vector<uint64_t> Counts;
-  ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1234, Counts)));
-  ASSERT_EQ(2U, Counts.size());
-  ASSERT_EQ(3U, Counts[0]);
-  ASSERT_EQ(6U, Counts[1]);
-
-  ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1235, Counts)));
-  ASSERT_EQ(2U, Counts.size());
-  ASSERT_EQ(15U, Counts[0]);
-  ASSERT_EQ(20U, Counts[1]);
-}
-
 } // end anonymous namespace




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