Reinstate the code for emitting an initial debug type for a struct,
to handle the case where the struct is only forward-declared. In
this case, a temporary MDNode is not needed and not desired.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111842 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 81947f9..6b79b3e 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -977,6 +977,17 @@
unsigned Line = getLineNumber(ID->getLocation());
unsigned RuntimeLang = TheCU.getLanguage();
+ // If this is just a forward declaration, return a special forward-declaration
+ // debug type.
+ if (ID->isForwardDecl()) {
+ llvm::DICompositeType FwdDecl =
+ DebugFactory.CreateCompositeType(Tag, Unit, ID->getName(),
+ DefUnit, Line, 0, 0, 0, 0,
+ llvm::DIType(), llvm::DIArray(),
+ RuntimeLang);
+ return FwdDecl;
+ }
+
// To handle recursive interface, we
// first generate a debug descriptor for the struct as a forward declaration.
// Then (if it is a definition) we go through and get debug info for all of
@@ -985,10 +996,6 @@
// uses of the forward declaration with the final definition.
llvm::DIType FwdDecl = DebugFactory.CreateTemporaryType();
- // If this is just a forward declaration, return it.
- if (ID->isForwardDecl())
- return FwdDecl;
-
llvm::MDNode *MN = FwdDecl;
llvm::TrackingVH<llvm::MDNode> FwdDeclNode = MN;
// Otherwise, insert it into the TypeCache so that recursive uses will find