llvm-reduce: Fix inconsistencies between int/unsigned usage (standardize on int)

llvm-svn: 372270

7 files changed, 32 insertions, 31 deletions

diff --git a/llvm/tools/llvm-reduce/deltas/Delta.cpp b/llvm/tools/llvm-reduce/deltas/Delta.cpp
index 0b5571f74de..0642241ddeb 100644
--- a/llvm/tools/llvm-reduce/deltas/Delta.cpp
+++ b/llvm/tools/llvm-reduce/deltas/Delta.cpp
@@ -44,8 +44,8 @@ bool IsReduced(Module &M, TestRunner &Test, SmallString<128> &CurrentFilepath) {
 }
 
 /// Counts the amount of lines for a given file
-static unsigned getLines(StringRef Filepath) {
-  unsigned Lines = 0;
+static int getLines(StringRef Filepath) {
+  int Lines = 0;
   std::string CurrLine;
   std::ifstream FileStream(Filepath);
 
@@ -66,7 +66,7 @@ static bool increaseGranularity(std::vector<Chunk> &Chunks) {
     if (C.end - C.begin == 0)
       NewChunks.push_back(C);
     else {
-      unsigned Half = (C.begin + C.end) / 2;
+      int Half = (C.begin + C.end) / 2;
       NewChunks.push_back({C.begin, Half});
       NewChunks.push_back({Half + 1, C.end});
       SplitOne = true;
@@ -88,9 +88,10 @@ static bool increaseGranularity(std::vector<Chunk> &Chunks) {
 /// reduces the amount of chunks that are considered interesting by the
 /// given test.
 void llvm::runDeltaPass(
-    TestRunner &Test, unsigned Targets,
+    TestRunner &Test, int Targets,
     std::function<void(const std::vector<Chunk> &, Module *)>
         ExtractChunksFromModule) {
+  assert(Targets >= 0);
   if (!Targets) {
     errs() << "\nNothing to reduce\n";
     return;
diff --git a/llvm/tools/llvm-reduce/deltas/Delta.h b/llvm/tools/llvm-reduce/deltas/Delta.h
index d6cf52f8d63..dbb18e4bd07 100644
--- a/llvm/tools/llvm-reduce/deltas/Delta.h
+++ b/llvm/tools/llvm-reduce/deltas/Delta.h
@@ -23,11 +23,11 @@
 namespace llvm {
 
 struct Chunk {
-  unsigned begin;
-  unsigned end;
+  int begin;
+  int end;
 
   /// Helper function to verify if a given Target-index is inside the Chunk
-  bool contains(unsigned Index) const { return Index >= begin && Index <= end; }
+  bool contains(int Index) const { return Index >= begin && Index <= end; }
 
   void print() const {
     errs() << "[" << begin;
@@ -68,7 +68,7 @@ struct Chunk {
 ///
 /// Other implementations of the Delta Debugging algorithm can also be found in
 /// the CReduce, Delta, and Lithium projects.
-void runDeltaPass(TestRunner &Test, unsigned Targets,
+void runDeltaPass(TestRunner &Test, int Targets,
                   std::function<void(const std::vector<Chunk> &, Module *)>
                       ExtractChunksFromModule);
 } // namespace llvm
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp b/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp
index 34977f33a90..f5f14b83f42 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp
@@ -42,7 +42,7 @@ static void replaceFunctionCalls(Function &OldF, Function &NewF,
 /// accordingly. It also removes allocations of out-of-chunk arguments.
 static void extractArgumentsFromModule(std::vector<Chunk> ChunksToKeep,
                                        Module *Program) {
-  unsigned I = 0, ArgCount = 0;
+  int I = 0, ArgCount = 0;
   std::set<Argument *> ArgsToKeep;
   std::vector<Function *> Funcs;
   // Get inside-chunk arguments, as well as their parent function
@@ -50,7 +50,7 @@ static void extractArgumentsFromModule(std::vector<Chunk> ChunksToKeep,
     if (!F.isDeclaration()) {
       Funcs.push_back(&F);
       for (auto &A : F.args())
-        if (I < ChunksToKeep.size()) {
+        if (I < (int)ChunksToKeep.size()) {
           if (ChunksToKeep[I].contains(++ArgCount))
             ArgsToKeep.insert(&A);
           if (ChunksToKeep[I].end == ArgCount)
@@ -120,6 +120,6 @@ static int countArguments(Module *Program) {
 
 void llvm::reduceArgumentsDeltaPass(TestRunner &Test) {
   outs() << "*** Reducing Arguments...\n";
-  unsigned ArgCount = countArguments(Test.getProgram());
+  int ArgCount = countArguments(Test.getProgram());
   runDeltaPass(Test, ArgCount, extractArgumentsFromModule);
 }
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceBasicBlocks.cpp b/llvm/tools/llvm-reduce/deltas/ReduceBasicBlocks.cpp
index 538394eb879..1f5957ef911 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceBasicBlocks.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceBasicBlocks.cpp
@@ -78,12 +78,12 @@ static void removeUninterestingBBsFromSwitch(SwitchInst &SwInst,
 /// @returns the Module stripped of out-of-chunk functions
 static void extractBasicBlocksFromModule(std::vector<Chunk> ChunksToKeep,
                                          Module *Program) {
-  unsigned I = 0, BBCount = 0;
+  int I = 0, BBCount = 0;
   std::set<BasicBlock *> BBsToKeep;
 
   for (auto &F : *Program)
     for (auto &BB : F)
-      if (I < ChunksToKeep.size()) {
+      if (I < (int)ChunksToKeep.size()) {
         if (ChunksToKeep[I].contains(++BBCount))
           BBsToKeep.insert(&BB);
         if (ChunksToKeep[I].end == BBCount)
@@ -120,7 +120,7 @@ static void extractBasicBlocksFromModule(std::vector<Chunk> ChunksToKeep,
 }
 
 /// Counts the amount of basic blocks and prints their name & respective index
-static unsigned countBasicBlocks(Module *Program) {
+static int countBasicBlocks(Module *Program) {
   // TODO: Silence index with --quiet flag
   outs() << "----------------------------\n";
   int BBCount = 0;
@@ -137,6 +137,6 @@ static unsigned countBasicBlocks(Module *Program) {
 
 void llvm::reduceBasicBlocksDeltaPass(TestRunner &Test) {
   outs() << "*** Reducing Basic Blocks...\n";
-  unsigned BBCount = countBasicBlocks(Test.getProgram());
+  int BBCount = countBasicBlocks(Test.getProgram());
   runDeltaPass(Test, BBCount, extractBasicBlocksFromModule);
 }
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceFunctions.cpp b/llvm/tools/llvm-reduce/deltas/ReduceFunctions.cpp
index 84dc842d972..3382f35a945 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceFunctions.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceFunctions.cpp
@@ -25,9 +25,9 @@ static void extractFunctionsFromModule(const std::vector<Chunk> &ChunksToKeep,
                                        Module *Program) {
   // Get functions inside desired chunks
   std::set<Function *> FuncsToKeep;
-  unsigned I = 0, FunctionCount = 0;
+  int I = 0, FunctionCount = 0;
   for (auto &F : *Program)
-    if (I < ChunksToKeep.size()) {
+    if (I < (int)ChunksToKeep.size()) {
       if (ChunksToKeep[I].contains(++FunctionCount))
         FuncsToKeep.insert(&F);
       if (FunctionCount == ChunksToKeep[I].end)
@@ -57,11 +57,11 @@ static void extractFunctionsFromModule(const std::vector<Chunk> &ChunksToKeep,
 
 /// Counts the amount of non-declaration functions and prints their
 /// respective name & index
-static unsigned countFunctions(Module *Program) {
+static int countFunctions(Module *Program) {
   // TODO: Silence index with --quiet flag
   errs() << "----------------------------\n";
   errs() << "Function Index Reference:\n";
-  unsigned FunctionCount = 0;
+  int FunctionCount = 0;
   for (auto &F : *Program)
     errs() << "\t" << ++FunctionCount << ": " << F.getName() << "\n";
 
@@ -71,7 +71,7 @@ static unsigned countFunctions(Module *Program) {
 
 void llvm::reduceFunctionsDeltaPass(TestRunner &Test) {
   errs() << "*** Reducing Functions...\n";
-  unsigned Functions = countFunctions(Test.getProgram());
+  int Functions = countFunctions(Test.getProgram());
   runDeltaPass(Test, Functions, extractFunctionsFromModule);
   errs() << "----------------------------\n";
 }
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceGlobalVars.cpp b/llvm/tools/llvm-reduce/deltas/ReduceGlobalVars.cpp
index b2c78d17078..5732208ee0a 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceGlobalVars.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceGlobalVars.cpp
@@ -21,9 +21,9 @@ static void extractGVsFromModule(std::vector<Chunk> ChunksToKeep,
                                  Module *Program) {
   // Get GVs inside desired chunks
   std::set<GlobalVariable *> GVsToKeep;
-  unsigned I = 0, GVCount = 0;
+  int I = 0, GVCount = 0;
   for (auto &GV : Program->globals())
-    if (GV.hasInitializer() && I < ChunksToKeep.size()) {
+    if (GV.hasInitializer() && I < (int)ChunksToKeep.size()) {
       if (ChunksToKeep[I].contains(++GVCount))
         GVsToKeep.insert(&GV);
       if (GVCount == ChunksToKeep[I].end)
@@ -69,6 +69,6 @@ static int countGVs(Module *Program) {
 
 void llvm::reduceGlobalsDeltaPass(TestRunner &Test) {
   outs() << "*** Reducing GVs...\n";
-  unsigned GVCount = countGVs(Test.getProgram());
+  int GVCount = countGVs(Test.getProgram());
   runDeltaPass(Test, GVCount, extractGVsFromModule);
 }
diff --git a/llvm/tools/llvm-reduce/deltas/ReduceMetadata.cpp b/llvm/tools/llvm-reduce/deltas/ReduceMetadata.cpp
index 56e69ce873d..4ea223546ef 100644
--- a/llvm/tools/llvm-reduce/deltas/ReduceMetadata.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceMetadata.cpp
@@ -21,7 +21,7 @@ using namespace llvm;
 
 /// Adds all Unnamed Metadata Nodes that are inside desired Chunks to set
 template <class T>
-static void getChunkMetadataNodes(T &MDUser, unsigned &I,
+static void getChunkMetadataNodes(T &MDUser, int &I,
                                   const std::vector<Chunk> &ChunksToKeep,
                                   std::set<MDNode *> &SeenNodes,
                                   std::set<MDNode *> &NodesToKeep) {
@@ -29,10 +29,10 @@ static void getChunkMetadataNodes(T &MDUser, unsigned &I,
   MDUser.getAllMetadata(MDs);
   for (auto &MD : MDs) {
     SeenNodes.insert(MD.second);
-    if (I < ChunksToKeep.size()) {
+    if (I < (int)ChunksToKeep.size()) {
       if (ChunksToKeep[I].contains(SeenNodes.size()))
         NodesToKeep.insert(MD.second);
-      if (ChunksToKeep[I].end == SeenNodes.size())
+      if (ChunksToKeep[I].end == (int)SeenNodes.size())
         ++I;
     }
   }
@@ -55,7 +55,7 @@ static void extractMetadataFromModule(const std::vector<Chunk> &ChunksToKeep,
                                       Module *Program) {
   std::set<MDNode *> SeenNodes;
   std::set<MDNode *> NodesToKeep;
-  unsigned I = 0;
+  int I = 0;
 
   // Add chunk MDNodes used by GVs, Functions, and Instructions to set
   for (auto &GV : Program->globals())
@@ -84,10 +84,10 @@ static void extractMetadataFromModule(const std::vector<Chunk> &ChunksToKeep,
   unsigned MetadataCount = SeenNodes.size();
   std::vector<NamedMDNode *> NamedNodesToDelete;
   for (auto &MD : Program->named_metadata()) {
-    if (I < ChunksToKeep.size()) {
+    if (I < (int)ChunksToKeep.size()) {
       if (!ChunksToKeep[I].contains(++MetadataCount))
         NamedNodesToDelete.push_back(&MD);
-      if (ChunksToKeep[I].end == SeenNodes.size())
+      if (ChunksToKeep[I].end == (int)SeenNodes.size())
         ++I;
     } else
       NamedNodesToDelete.push_back(&MD);
@@ -111,7 +111,7 @@ static void addMetadataToSet(T &MDUser, std::set<MDNode *> &UnnamedNodes) {
 }
 
 /// Returns the amount of Named and Unnamed Metadata Nodes
-static unsigned countMetadataTargets(Module *Program) {
+static int countMetadataTargets(Module *Program) {
   std::set<MDNode *> UnnamedNodes;
   int NamedMetadataNodes = Program->named_metadata_size();
 
@@ -132,7 +132,7 @@ static unsigned countMetadataTargets(Module *Program) {
 
 void llvm::reduceMetadataDeltaPass(TestRunner &Test) {
   outs() << "*** Reducing Metadata...\n";
-  unsigned MDCount = countMetadataTargets(Test.getProgram());
+  int MDCount = countMetadataTargets(Test.getProgram());
   runDeltaPass(Test, MDCount, extractMetadataFromModule);
   outs() << "----------------------------\n";
 }