Lazy deserialization of function bodies for PCH files. For the Carbon
"Hello, World!", this takes us from deserializing 6469
statements/expressions down to deserializing 1
statement/expression. It only translated into a 1% improvement on the
Carbon-prefixed 403.gcc, but (a) it's the right thing to do, and (b)
we expect this to matter more once we lazily deserialize identifiers.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69407 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 5d49d70..8bda323 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -308,8 +308,8 @@
//===----------------------------------------------------------------------===//
void FunctionDecl::Destroy(ASTContext& C) {
- if (Body)
- Body->Destroy(C);
+ if (Body && Body.isOffset())
+ Body.get(C.getExternalSource())->Destroy(C);
for (param_iterator I=param_begin(), E=param_end(); I!=E; ++I)
(*I)->Destroy(C);
@@ -325,7 +325,7 @@
for (const FunctionDecl *FD = this; FD != 0; FD = FD->PreviousDeclaration) {
if (FD->Body) {
Definition = FD;
- return cast<CompoundStmt>(FD->Body);
+ return cast<CompoundStmt>(FD->Body.get(Context.getExternalSource()));
}
}
@@ -334,8 +334,9 @@
CompoundStmt *FunctionDecl::getBodyIfAvailable() const {
for (const FunctionDecl *FD = this; FD != 0; FD = FD->PreviousDeclaration) {
- if (FD->Body)
- return cast<CompoundStmt>(FD->Body);
+ if (FD->Body && !FD->Body.isOffset()) {
+ return cast<CompoundStmt>(FD->Body.get(0));
+ }
}
return 0;