Revert predefined decl tracking.

r158085 added some logic to track predefined declarations.  The main reason we
had predefined declarations in the input was because the __builtin_va_list
declarations were injected into the preprocessor input.  As of r158592 we 
explicitly build the __builtin_va_list declarations.  Therefore the predefined
decl tracking is no longer needed.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158732 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 20 deletions

diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index 8eb386b8dc..603bfebfd3 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -591,9 +591,6 @@ class SourceManager : public RefCountedBase<SourceManager> {
   /// \brief The file ID for the precompiled preamble there is one.
   FileID PreambleFileID;
 
-  /// \brief The file ID for the preprocessor's predefines.
-  FileID PredefinesFileID;
-
   // Statistics for -print-stats.
   mutable unsigned NumLinearScans, NumBinaryProbes;
 
@@ -638,14 +635,6 @@ public:
     MainFileID = createFileIDForMemBuffer(Buffer);
     return MainFileID;
   }
-  
-  /// \brief Create the FileID for a memory buffer that contains the
-  /// preprocessor's predefines.
-  FileID createPredefinesFileIDForMemBuffer(const llvm::MemoryBuffer *Buffer) {
-    assert(PredefinesFileID.isInvalid() && "PredefinesFileID already set!");
-    PredefinesFileID = createFileIDForMemBuffer(Buffer);
-    return PredefinesFileID;
-  }
 
   //===--------------------------------------------------------------------===//
   // MainFileID creation and querying methods.
@@ -654,9 +643,6 @@ public:
   /// getMainFileID - Returns the FileID of the main source file.
   FileID getMainFileID() const { return MainFileID; }
 
-  /// \brief Returns the FileID of the preprocessor predefines buffer.
-  FileID getPredefinesFileID() const { return PredefinesFileID; }
-
   /// createMainFileID - Create the FileID for the main source file.
   FileID createMainFileID(const FileEntry *SourceFile, 
                           SrcMgr::CharacteristicKind Kind = SrcMgr::C_User) {
@@ -1138,12 +1124,6 @@ public:
     return getFileID(Loc) == getMainFileID();
   }
 
-  /// isFromPredefines - Returns true if the provided SourceLocation is
-  ///   within the processor's predefines buffer.
-  bool isFromPredefines(SourceLocation Loc) const {
-    return getFileID(Loc) == getPredefinesFileID();
-  }
-
   /// isInSystemHeader - Returns if a SourceLocation is in a system header.
   bool isInSystemHeader(SourceLocation Loc) const {
     return getFileCharacteristic(Loc) != SrcMgr::C_User;