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-rw-r--r--lib/Serialization/ASTReader.cpp24
1 files changed, 12 insertions, 12 deletions
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index f31fb751ab..884cc1556b 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -2033,6 +2033,13 @@ ASTReader::ReadASTBlock(PerFileData &F) {
}
F.TypeOffsets = (const uint32_t *)BlobStart;
F.LocalNumTypes = Record[0];
+
+ // Introduce the global -> local mapping for types within this
+ // AST file.
+ GlobalTypeMap.insert(std::make_pair(getTotalNumTypes() + 1,
+ std::make_pair(&F,
+ -getTotalNumTypes())));
+ TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes);
break;
case DECL_OFFSET:
@@ -2551,14 +2558,12 @@ ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName,
}
// Allocate space for loaded slocentries, identifiers, decls and types.
- unsigned TotalNumTypes = 0, TotalNumPreallocatedPreprocessingEntities = 0;
+ unsigned TotalNumPreallocatedPreprocessingEntities = 0;
for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
TotalNumSLocEntries += Chain[I]->LocalNumSLocEntries;
- TotalNumTypes += Chain[I]->LocalNumTypes;
TotalNumPreallocatedPreprocessingEntities +=
Chain[I]->NumPreallocatedPreprocessingEntities;
}
- TypesLoaded.resize(TotalNumTypes);
if (PP) {
PP->getHeaderSearchInfo().SetExternalLookup(this);
if (TotalNumPreallocatedPreprocessingEntities > 0) {
@@ -3157,15 +3162,10 @@ void ASTReader::ReadPragmaDiagnosticMappings(Diagnostic &Diag) {
/// \brief Get the correct cursor and offset for loading a type.
ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) {
- PerFileData *F = 0;
- for (unsigned I = 0, N = Chain.size(); I != N; ++I) {
- F = Chain[N - I - 1];
- if (Index < F->LocalNumTypes)
- break;
- Index -= F->LocalNumTypes;
- }
- assert(F && F->LocalNumTypes > Index && "Broken chain");
- return RecordLocation(F, F->TypeOffsets[Index]);
+ GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index+1);
+ assert(I != GlobalTypeMap.end() && "Corrupted global type map");
+ return RecordLocation(I->second.first,
+ I->second.first->TypeOffsets[Index + I->second.second]);
}
/// \brief Read and return the type with the given index..