[modules] Remove CXX_BASE_SPECIFIERS_OFFSETS table. Instead of storing an ID of

a table entry in the corresponding decl, store an offset from the current
record to the relevant CXX_BASE_SPECIFIERS record. This results in fewer
indirections and a minor .pcm file size reduction.

llvm-svn: 266266

1 files changed, 0 insertions, 23 deletions

diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 947df5e4448..5c4371bfefb 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -3053,17 +3053,6 @@ ASTReader::ReadASTBlock(ModuleFile &F, unsigned ClientLoadCapabilities) {
       F.ObjCCategories.swap(Record);
       break;
 
-    case CXX_BASE_SPECIFIER_OFFSETS: {
-      if (F.LocalNumCXXBaseSpecifiers != 0) {
-        Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file");
-        return Failure;
-      }
-
-      F.LocalNumCXXBaseSpecifiers = Record[0];
-      F.CXXBaseSpecifiersOffsets = (const uint32_t *)Blob.data();
-      break;
-    }
-
     case DIAG_PRAGMA_MAPPINGS:
       if (F.PragmaDiagMappings.empty())
         F.PragmaDiagMappings.swap(Record);
@@ -6312,18 +6301,6 @@ ASTReader::GetExternalCXXCtorInitializers(uint64_t Offset) {
   return ReadCXXCtorInitializers(*Loc.F, Record, Idx);
 }
 
-uint64_t ASTReader::readCXXBaseSpecifiers(ModuleFile &M,
-                                          const RecordData &Record,
-                                          unsigned &Idx) {
-  if (Idx >= Record.size() || Record[Idx] > M.LocalNumCXXBaseSpecifiers) {
-    Error("malformed AST file: missing C++ base specifier");
-    return 0;
-  }
-
-  unsigned LocalID = Record[Idx++];
-  return getGlobalBitOffset(M, M.CXXBaseSpecifiersOffsets[LocalID - 1]);
-}
-
 CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) {
   RecordLocation Loc = getLocalBitOffset(Offset);
   BitstreamCursor &Cursor = Loc.F->DeclsCursor;