Method Pool in modules: we make sure that if a module contains an entry for
a selector, the entry should be complete, containing everything introduced by
that module and all modules it imports.
Before writing out the method pool of a module, we sync up the out of date
selectors by pulling in methods for the selectors, from all modules it imports.
In ReadMethodPool, after pulling in the method pool entry for module A, this
lets us skip the modules that module A imports.
rdar://problem/25900131
llvm-svn: 268091
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 910f5dc..aa672b3 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -3606,6 +3606,9 @@
Id != IdEnd; ++Id)
Id->second->setOutOfDate(true);
}
+ // Mark selectors as out of date.
+ for (auto Sel : SelectorGeneration)
+ SelectorOutOfDate[Sel.first] = true;
// Resolve any unresolved module exports.
for (unsigned I = 0, N = UnresolvedModuleRefs.size(); I != N; ++I) {
@@ -7139,6 +7142,7 @@
unsigned &Generation = SelectorGeneration[Sel];
unsigned PriorGeneration = Generation;
Generation = getGeneration();
+ SelectorOutOfDate[Sel] = false;
// Search for methods defined with this selector.
++NumMethodPoolLookups;
@@ -7170,6 +7174,11 @@
addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second);
}
+void ASTReader::updateOutOfDateSelector(Selector Sel) {
+ if (SelectorOutOfDate[Sel])
+ ReadMethodPool(Sel);
+}
+
void ASTReader::ReadKnownNamespaces(
SmallVectorImpl<NamespaceDecl *> &Namespaces) {
Namespaces.clear();