Shuffle members of DesignatedInitExpr to avoid padding.

40 -> 32 bytes on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151495 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/Expr.h b/include/clang/AST/Expr.h
index e053fd70027c57a519154d17a42c27e8a2a540dc..5acee7848a4b7370a5e1d4aae86d8f01015f0301 100644 (file)
--- a/include/clang/AST/Expr.h
+++ b/include/clang/AST/Expr.h
@@ -3667,15 +3667,15 @@ private:
   /// The number of designators in this initializer expression.
   unsigned NumDesignators : 15;
 
-  /// \brief The designators in this designated initialization
-  /// expression.
-  Designator *Designators;
-
   /// The number of subexpressions of this initializer expression,
   /// which contains both the initializer and any additional
   /// expressions used by array and array-range designators.
   unsigned NumSubExprs : 16;
 
+  /// \brief The designators in this designated initialization
+  /// expression.
+  Designator *Designators;
+
 
   DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators,
                      const Designator *Designators,
@@ -3685,7 +3685,7 @@ private:
 
   explicit DesignatedInitExpr(unsigned NumSubExprs)
     : Expr(DesignatedInitExprClass, EmptyShell()),
-      NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { }
+      NumDesignators(0), NumSubExprs(NumSubExprs), Designators(0) { }
 
 public:
   /// A field designator, e.g., ".x".