[llvm][NFC] Use move instead of copy

Summary: For functions that accept an rvalue reference type
parameter, use move to avoid copying the parameter.

These were found when implementing CppCoreGuideline F.18 in
clang-tidy.

Committed on behalf of ccotter (Chris Cotter)

Reviewers: Michael137 thieta

Differential Revision: https://reviews.llvm.org/D142825

Author: ccotter

llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp

@@ -488,10 +488,10 @@ void CodeViewDebug::recordLocalVariable(LocalVariable &&Var,
     // This variable was inlined. Associate it with the InlineSite.
     const DISubprogram *Inlinee = Var.DIVar->getScope()->getSubprogram();
     InlineSite &Site = getInlineSite(InlinedAt, Inlinee);
-    Site.InlinedLocals.emplace_back(Var);
+    Site.InlinedLocals.emplace_back(std::move(Var));
   } else {
     // This variable goes into the corresponding lexical scope.
-    ScopeVariables[LS].emplace_back(Var);
+    ScopeVariables[LS].emplace_back(std::move(Var));
   }
 }
 

llvm/lib/MC/MCParser/MasmParser.cpp

@@ -151,14 +151,14 @@ struct IntFieldInfo {
 
   IntFieldInfo() = default;
   IntFieldInfo(const SmallVector<const MCExpr *, 1> &V) { Values = V; }
-  IntFieldInfo(SmallVector<const MCExpr *, 1> &&V) { Values = V; }
+  IntFieldInfo(SmallVector<const MCExpr *, 1> &&V) { Values = std::move(V); }
 };
 struct RealFieldInfo {
   SmallVector<APInt, 1> AsIntValues;
 
   RealFieldInfo() = default;
   RealFieldInfo(const SmallVector<APInt, 1> &V) { AsIntValues = V; }
-  RealFieldInfo(SmallVector<APInt, 1> &&V) { AsIntValues = V; }
+  RealFieldInfo(SmallVector<APInt, 1> &&V) { AsIntValues = std::move(V); }
 };
 struct StructFieldInfo {
   std::vector<StructInitializer> Initializers;
@@ -269,12 +269,12 @@ FieldInitializer::FieldInitializer(FieldType FT) : FT(FT) {
 
 FieldInitializer::FieldInitializer(SmallVector<const MCExpr *, 1> &&Values)
     : FT(FT_INTEGRAL) {
-  new (&IntInfo) IntFieldInfo(Values);
+  new (&IntInfo) IntFieldInfo(std::move(Values));
 }
 
 FieldInitializer::FieldInitializer(SmallVector<APInt, 1> &&AsIntValues)
     : FT(FT_REAL) {
-  new (&RealInfo) RealFieldInfo(AsIntValues);
+  new (&RealInfo) RealFieldInfo(std::move(AsIntValues));
 }
 
 FieldInitializer::FieldInitializer(