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Avoid writing a VTABLE_USES record in PCH if there are no entries. 

llvm-svn: 110122
This commit is contained in:
Argyrios Kyrtzidis 2010-08-03 17:29:52 +00:00
parent 052c23cd2f
commit edee67f335
2 changed files with 16 additions and 12 deletions
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16
clang/lib/Frontend/PCHReader.cpp
View File

@ -3133,13 +3133,15 @@ void PCHReader::InitializeSema(Sema &S) {
// If there were any VTable uses, deserialize the information and add it
// to Sema's vector and map of VTable uses.
unsigned Idx = 0;
for (unsigned I = 0, N = VTableUses[Idx++]; I != N; ++I) {
CXXRecordDecl *Class = cast<CXXRecordDecl>(GetDecl(VTableUses[Idx++]));
SourceLocation Loc = ReadSourceLocation(VTableUses, Idx);
bool DefinitionRequired = VTableUses[Idx++];
SemaObj->VTableUses.push_back(std::make_pair(Class, Loc));
SemaObj->VTablesUsed[Class] = DefinitionRequired;
if (!VTableUses.empty()) {
unsigned Idx = 0;
for (unsigned I = 0, N = VTableUses[Idx++]; I != N; ++I) {
CXXRecordDecl *Class = cast<CXXRecordDecl>(GetDecl(VTableUses[Idx++]));
SourceLocation Loc = ReadSourceLocation(VTableUses, Idx);
bool DefinitionRequired = VTableUses[Idx++];
SemaObj->VTableUses.push_back(std::make_pair(Class, Loc));
SemaObj->VTablesUsed[Class] = DefinitionRequired;
}
}
// If there were any dynamic classes declarations, deserialize them

12
clang/lib/Frontend/PCHWriter.cpp
View File

@ -2196,11 +2196,13 @@ void PCHWriter::WritePCHCore(Sema &SemaRef, MemorizeStatCalls *StatCalls,
// Build a record containing all of the VTable uses information.
RecordData VTableUses;
VTableUses.push_back(SemaRef.VTableUses.size());
for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
if (!SemaRef.VTableUses.empty()) {
VTableUses.push_back(SemaRef.VTableUses.size());
for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
}
}
// Build a record containing all of dynamic classes declarations.