Delete more dead code.

Found by gcc 6.

llvm-svn: 273402

4 files changed, 0 insertions, 80 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
index 9e3cf3041a0..dd4e7e27a96 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
@@ -58,7 +58,6 @@ namespace {
     // operators inevitably call FAddendCoef's constructor which is not cheap.
     void operator=(const FAddendCoef &A);
     void operator+=(const FAddendCoef &A);
-    void operator-=(const FAddendCoef &A);
     void operator*=(const FAddendCoef &S);
 
     bool isOne() const { return isInt() && IntVal == 1; }
@@ -279,27 +278,6 @@ void FAddendCoef::operator+=(const FAddendCoef &That) {
   T.add(createAPFloatFromInt(T.getSemantics(), That.IntVal), RndMode);
 }
 
-void FAddendCoef::operator-=(const FAddendCoef &That) {
-  enum APFloat::roundingMode RndMode = APFloat::rmNearestTiesToEven;
-  if (isInt() == That.isInt()) {
-    if (isInt())
-      IntVal -= That.IntVal;
-    else
-      getFpVal().subtract(That.getFpVal(), RndMode);
-    return;
-  }
-
-  if (isInt()) {
-    const APFloat &T = That.getFpVal();
-    convertToFpType(T.getSemantics());
-    getFpVal().subtract(T, RndMode);
-    return;
-  }
-
-  APFloat &T = getFpVal();
-  T.subtract(createAPFloatFromInt(T.getSemantics(), IntVal), RndMode);
-}
-
 void FAddendCoef::operator*=(const FAddendCoef &That) {
   if (That.isOne())
     return;
diff --git a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index 6b2df2a1d9d..df48897f2c7 100644
--- a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -99,8 +99,6 @@ private:
   Constant *getEmitFunctionFunc();
   Constant *getEmitArcsFunc();
   Constant *getSummaryInfoFunc();
-  Constant *getDeleteWriteoutFunctionListFunc();
-  Constant *getDeleteFlushFunctionListFunc();
   Constant *getEndFileFunc();
 
   // Create or retrieve an i32 state value that is used to represent the
@@ -817,16 +815,6 @@ Constant *GCOVProfiler::getSummaryInfoFunc() {
   return M->getOrInsertFunction("llvm_gcda_summary_info", FTy);
 }
 
-Constant *GCOVProfiler::getDeleteWriteoutFunctionListFunc() {
-  FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), false);
-  return M->getOrInsertFunction("llvm_delete_writeout_function_list", FTy);
-}
-
-Constant *GCOVProfiler::getDeleteFlushFunctionListFunc() {
-  FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), false);
-  return M->getOrInsertFunction("llvm_delete_flush_function_list", FTy);
-}
-
 Constant *GCOVProfiler::getEndFileFunc() {
   FunctionType *FTy = FunctionType::get(Type::getVoidTy(*Ctx), false);
   return M->getOrInsertFunction("llvm_gcda_end_file", FTy);
diff --git a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp
index 6e74a733d11..5dc0de25971 100644
--- a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp
@@ -403,11 +403,9 @@ public:
 
 private:
   void splitInnerLoopLatch(Instruction *);
-  void splitOuterLoopLatch();
   void splitInnerLoopHeader();
   bool adjustLoopLinks();
   void adjustLoopPreheaders();
-  void adjustOuterLoopPreheader();
   bool adjustLoopBranches();
   void updateIncomingBlock(BasicBlock *CurrBlock, BasicBlock *OldPred,
                            BasicBlock *NewPred);
@@ -1074,13 +1072,6 @@ void LoopInterchangeTransform::splitInnerLoopLatch(Instruction *Inc) {
   InnerLoopLatch = SplitBlock(InnerLoopLatchPred, Inc, DT, LI);
 }
 
-void LoopInterchangeTransform::splitOuterLoopLatch() {
-  BasicBlock *OuterLoopLatch = OuterLoop->getLoopLatch();
-  BasicBlock *OuterLatchLcssaPhiBlock = OuterLoopLatch;
-  OuterLoopLatch = SplitBlock(OuterLatchLcssaPhiBlock,
-                              OuterLoopLatch->getFirstNonPHI(), DT, LI);
-}
-
 void LoopInterchangeTransform::splitInnerLoopHeader() {
 
   // Split the inner loop header out. Here make sure that the reduction PHI's
@@ -1125,13 +1116,6 @@ static void moveBBContents(BasicBlock *FromBB, Instruction *InsertBefore) {
                 FromBB->getTerminator()->getIterator());
 }
 
-void LoopInterchangeTransform::adjustOuterLoopPreheader() {
-  BasicBlock *OuterLoopPreHeader = OuterLoop->getLoopPreheader();
-  BasicBlock *InnerPreHeader = InnerLoop->getLoopPreheader();
-
-  moveBBContents(OuterLoopPreHeader, InnerPreHeader->getTerminator());
-}
-
 void LoopInterchangeTransform::updateIncomingBlock(BasicBlock *CurrBlock,
                                                    BasicBlock *OldPred,
                                                    BasicBlock *NewPred) {
diff --git a/llvm/lib/Transforms/Utils/ValueMapper.cpp b/llvm/lib/Transforms/Utils/ValueMapper.cpp
index 7b95ac04b5f..2eade8cbe8e 100644
--- a/llvm/lib/Transforms/Utils/ValueMapper.cpp
+++ b/llvm/lib/Transforms/Utils/ValueMapper.cpp
@@ -144,20 +144,6 @@ public:
   /// (not an MDNode, or MDNode::isResolved() returns true).
   Metadata *mapMetadata(const Metadata *MD);
 
-  // Map LocalAsMetadata, which never gets memoized.
-  //
-  // If the referenced local is not mapped, the principled return is nullptr.
-  // However, optimization passes sometimes move metadata operands *before* the
-  // SSA values they reference.  To prevent crashes in \a RemapInstruction(),
-  // return "!{}" when RF_IgnoreMissingLocals is not set.
-  //
-  // \note Adding a mapping for LocalAsMetadata is unsupported.  Add a mapping
-  // to the value map for the SSA value in question instead.
-  //
-  // FIXME: Once we have a verifier check for forward references to SSA values
-  // through metadata operands, always return nullptr on unmapped locals.
-  Metadata *mapLocalAsMetadata(const LocalAsMetadata &LAM);
-
   void scheduleMapGlobalInitializer(GlobalVariable &GV, Constant &Init,
                                     unsigned MCID);
   void scheduleMapAppendingVariable(GlobalVariable &GV, Constant *InitPrefix,
@@ -817,22 +803,6 @@ Optional<Metadata *> Mapper::mapSimpleMetadata(const Metadata *MD) {
   return None;
 }
 
-Metadata *Mapper::mapLocalAsMetadata(const LocalAsMetadata &LAM) {
-  // Lookup the mapping for the value itself, and return the appropriate
-  // metadata.
-  if (Value *V = mapValue(LAM.getValue())) {
-    if (V == LAM.getValue())
-      return const_cast<LocalAsMetadata *>(&LAM);
-    return ValueAsMetadata::get(V);
-  }
-
-  // FIXME: always return nullptr once Verifier::verifyDominatesUse() ensures
-  // metadata operands only reference defined SSA values.
-  return (Flags & RF_IgnoreMissingLocals)
-             ? nullptr
-             : MDTuple::get(LAM.getContext(), None);
-}
-
 Metadata *Mapper::mapMetadata(const Metadata *MD) {
   assert(MD && "Expected valid metadata");
   assert(!isa<LocalAsMetadata>(MD) && "Unexpected local metadata");