From a5e4d30942a5489d8889c58f420f3fa48f6a468d Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 6 Feb 2008 04:51:19 +0000
Subject: [PATCH] Finish off the refactoring of type handling stuff.  Now we
 recompile every tag decl after it has been completed

llvm-svn: 46798
---
 clang/CodeGen/ModuleBuilder.cpp | 12 +++++++++++-
 clang/test/CodeGen/types.c      |  9 +++++++--
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/clang/CodeGen/ModuleBuilder.cpp b/clang/CodeGen/ModuleBuilder.cpp
index c59ef447e660..8d3207a19cec 100644
--- a/clang/CodeGen/ModuleBuilder.cpp
+++ b/clang/CodeGen/ModuleBuilder.cpp
@@ -71,9 +71,19 @@ namespace {
         // FIXME: implement C++ linkage, C linkage works mostly by C
         // language reuse already.
       } else {
-        Builder->EmitType(cast<TypeDecl>(D));
+        assert(isa<TypeDecl>(D) && "Unknown top level decl");
+        // TODO: handle debug info?
       }
     }
+    
+    /// HandleTagDeclDefinition - This callback is invoked each time a TagDecl
+    /// (e.g. struct, union, enum, class) is completed.  This allows the client to
+    /// hack on the type, which can occur at any point in the file (because these
+    /// can be defined in declspecs).
+    virtual void HandleTagDeclDefinition(TagDecl *D) {
+      Builder->EmitType(D);
+    }
+    
   };
 }
 
diff --git a/clang/test/CodeGen/types.c b/clang/test/CodeGen/types.c
index 01286e89621c..2bbcec106a7d 100644
--- a/clang/test/CodeGen/types.c
+++ b/clang/test/CodeGen/types.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s
+// RUN: clang -emit-llvm <%s
 
 struct FileName {
     struct FileName *next;
@@ -10,7 +10,12 @@ struct ieeeExternal {
 } *exthead;
 
 
-void f()
+void test1()
 {
     struct ieeeExternal *exttmp = exthead;
 }
+
+struct MpegEncContext;
+typedef struct MpegEncContext {int pb;} MpegEncContext;
+static void test2(void) {MpegEncContext s; s.pb;}
+