[AST][NFC] Pack CXXBoolLiteralExpr

Use the newly available space in Stmt.
This saves 8 bytes per CXXBoolLiteralExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@347062 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/ExprCXX.h b/include/clang/AST/ExprCXX.h
index 13ece0d6d3aee2776085cac2b8e3c7685c202aad..ea070523468f462a7af115bcd2fea8b7ce1073d9 100644 (file)
--- a/include/clang/AST/ExprCXX.h
+++ b/include/clang/AST/ExprCXX.h
@@ -548,26 +548,25 @@ public:
 
 /// A boolean literal, per ([C++ lex.bool] Boolean literals).
 class CXXBoolLiteralExpr : public Expr {
-  bool Value;
-  SourceLocation Loc;
-
 public:
-  CXXBoolLiteralExpr(bool val, QualType Ty, SourceLocation l)
+  CXXBoolLiteralExpr(bool Val, QualType Ty, SourceLocation Loc)
       : Expr(CXXBoolLiteralExprClass, Ty, VK_RValue, OK_Ordinary, false, false,
-             false, false),
-        Value(val), Loc(l) {}
+             false, false) {
+    CXXBoolLiteralExprBits.Value = Val;
+    CXXBoolLiteralExprBits.Loc = Loc;
+  }
 
   explicit CXXBoolLiteralExpr(EmptyShell Empty)
       : Expr(CXXBoolLiteralExprClass, Empty) {}
 
-  bool getValue() const { return Value; }
-  void setValue(bool V) { Value = V; }
+  bool getValue() const { return CXXBoolLiteralExprBits.Value; }
+  void setValue(bool V) { CXXBoolLiteralExprBits.Value = V; }
 
-  SourceLocation getBeginLoc() const LLVM_READONLY { return Loc; }
-  SourceLocation getEndLoc() const LLVM_READONLY { return Loc; }
+  SourceLocation getBeginLoc() const { return getLocation(); }
+  SourceLocation getEndLoc() const { return getLocation(); }
 
-  SourceLocation getLocation() const { return Loc; }
-  void setLocation(SourceLocation L) { Loc = L; }
+  SourceLocation getLocation() const { return CXXBoolLiteralExprBits.Loc; }
+  void setLocation(SourceLocation L) { CXXBoolLiteralExprBits.Loc = L; }
 
   static bool classof(const Stmt *T) {
     return T->getStmtClass() == CXXBoolLiteralExprClass;

diff --git a/include/clang/AST/Stmt.h b/include/clang/AST/Stmt.h
index 79a66460408d870b13aebf6b9955c332aed52145..ad77c27e2ce9f1e6893fb245624bd79db5bb8e7d 100644 (file)
--- a/include/clang/AST/Stmt.h
+++ b/include/clang/AST/Stmt.h
@@ -502,6 +502,18 @@ protected:
 
   //===--- C++ Expression bitfields classes ---===//
 
+  class CXXBoolLiteralExprBitfields {
+    friend class CXXBoolLiteralExpr;
+
+    unsigned : NumExprBits;
+
+    /// The value of the boolean literal.
+    unsigned Value : 1;
+
+    /// The location of the boolean literal.
+    SourceLocation Loc;
+  };
+
   class TypeTraitExprBitfields {
     friend class ASTStmtReader;
     friend class ASTStmtWriter;
@@ -600,6 +612,7 @@ protected:
     PseudoObjectExprBitfields PseudoObjectExprBits;
 
     // C++ Expressions
+    CXXBoolLiteralExprBitfields CXXBoolLiteralExprBits;
     TypeTraitExprBitfields TypeTraitExprBits;
     ExprWithCleanupsBitfields ExprWithCleanupsBits;