Remove unnecessary copying or replace it with moves in a bunch of places.

NFC.

llvm-svn: 219061

5 files changed, 11 insertions, 7 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
index ff4cf0218ab..1b0bb325b5a 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h
@@ -221,7 +221,9 @@ public:
   SmallVectorImpl<RangeSpan> &getRanges() { return CURanges; }
 
   /// addRangeList - Add an address range list to the list of range lists.
-  void addRangeList(RangeSpanList Ranges) { CURangeLists.push_back(Ranges); }
+  void addRangeList(RangeSpanList Ranges) {
+    CURangeLists.push_back(std::move(Ranges));
+  }
 
   /// getRangeLists - Get the vector of range lists.
   const SmallVectorImpl<RangeSpanList> &getRangeLists() const {
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index dd932ebd80e..95825e6571e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -1881,7 +1881,8 @@ ExpandBVWithShuffles(SDNode *Node, SelectionDAG &DAG,
                                          ShuffleVec.data());
         else if (!TLI.isShuffleMaskLegal(ShuffleVec, VT))
           return false;
-        NewIntermedVals.push_back(std::make_pair(Shuffle, FinalIndices));
+        NewIntermedVals.push_back(
+            std::make_pair(Shuffle, std::move(FinalIndices)));
       }
 
       // If we had an odd number of defined values, then append the last
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9bd5dfea0a6..91b1022eb70 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -2617,12 +2617,12 @@ bool SelectionDAGBuilder::handleBitTestsSwitchCase(CaseRec& CR,
 
   BitTestBlock BTB(lowBound, cmpRange, SV,
                    -1U, MVT::Other, (CR.CaseBB == SwitchBB),
-                   CR.CaseBB, Default, BTC);
+                   CR.CaseBB, Default, std::move(BTC));
 
   if (CR.CaseBB == SwitchBB)
     visitBitTestHeader(BTB, SwitchBB);
 
-  BitTestCases.push_back(BTB);
+  BitTestCases.push_back(std::move(BTB));
 
   return true;
 }
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 6ecddc1608a..236f1a67990 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -276,9 +276,9 @@ private:
     BitTestBlock(APInt F, APInt R, const Value* SV,
                  unsigned Rg, MVT RgVT, bool E,
                  MachineBasicBlock* P, MachineBasicBlock* D,
-                 const BitTestInfo& C):
+                 BitTestInfo C):
       First(F), Range(R), SValue(SV), Reg(Rg), RegVT(RgVT), Emitted(E),
-      Parent(P), Default(D), Cases(C) { }
+      Parent(P), Default(D), Cases(std::move(C)) { }
     APInt First;
     APInt Range;
     const Value *SValue;
diff --git a/llvm/lib/CodeGen/StackMaps.cpp b/llvm/lib/CodeGen/StackMaps.cpp
index adbb38e8b55..a32a7c150c4 100644
--- a/llvm/lib/CodeGen/StackMaps.cpp
+++ b/llvm/lib/CodeGen/StackMaps.cpp
@@ -235,7 +235,8 @@ void StackMaps::recordStackMapOpers(const MachineInstr &MI, uint64_t ID,
     MCSymbolRefExpr::Create(AP.CurrentFnSym, OutContext),
     OutContext);
 
-  CSInfos.push_back(CallsiteInfo(CSOffsetExpr, ID, Locations, LiveOuts));
+  CSInfos.emplace_back(CSOffsetExpr, ID, std::move(Locations),
+                       std::move(LiveOuts));
 
   // Record the stack size of the current function.
   const MachineFrameInfo *MFI = AP.MF->getFrameInfo();