contrib/llvm/tools/clang/lib/AST/DeclOpenMP.cpp

   1 //===--- DeclOpenMP.cpp - Declaration OpenMP AST Node Implementation ------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 /// \file
  10 /// \brief This file implements OMPThreadPrivateDecl class.
  11 ///
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "clang/AST/ASTContext.h"
  15 #include "clang/AST/DeclBase.h"
  16 #include "clang/AST/Decl.h"
  17 #include "clang/AST/DeclOpenMP.h"
  18 #include "clang/AST/Expr.h"
  19
  20 using namespace clang;
  21
  22 //===----------------------------------------------------------------------===//
  23 // OMPThreadPrivateDecl Implementation.
  24 //===----------------------------------------------------------------------===//
  25
  26 void OMPThreadPrivateDecl::anchor() { }
  27
  28 OMPThreadPrivateDecl *OMPThreadPrivateDecl::Create(ASTContext &C,
  29                                                    DeclContext *DC,
  30                                                    SourceLocation L,
  31                                                    ArrayRef<DeclRefExpr *> VL) {
  32   unsigned Size = sizeof(OMPThreadPrivateDecl) +
  33                   (VL.size() * sizeof(DeclRefExpr *));
  34
  35   void *Mem = C.Allocate(Size, llvm::alignOf<OMPThreadPrivateDecl>());
  36   OMPThreadPrivateDecl *D = new (Mem) OMPThreadPrivateDecl(OMPThreadPrivate,
  37                                                            DC, L);
  38   D->NumVars = VL.size();
  39   D->setVars(VL);
  40   return D;
  41 }
  42
  43 OMPThreadPrivateDecl *OMPThreadPrivateDecl::CreateDeserialized(ASTContext &C,
  44                                                                unsigned ID,
  45                                                                unsigned N) {
  46   unsigned Size = sizeof(OMPThreadPrivateDecl) + (N * sizeof(DeclRefExpr *));
  47
  48   void *Mem = AllocateDeserializedDecl(C, ID, Size);
  49   OMPThreadPrivateDecl *D = new (Mem) OMPThreadPrivateDecl(OMPThreadPrivate,
  50                                                            0, SourceLocation());
  51   D->NumVars = N;
  52   return D;
  53 }
  54
  55 void OMPThreadPrivateDecl::setVars(ArrayRef<DeclRefExpr *> VL) {
  56   assert(VL.size() == NumVars &&
  57          "Number of variables is not the same as the preallocated buffer");
  58   DeclRefExpr **Vars = reinterpret_cast<DeclRefExpr **>(this + 1);
  59   std::copy(VL.begin(), VL.end(), Vars);
  60 }