From 730e175910936eae49e65caea8b2ba81c67edff7 Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Wed, 6 Oct 2010 17:00:02 +0000
Subject: [PATCH] Issue deprecated warning when typeof uses typedef based on
 underlying type's deprecatedness.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@115800 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Sema/SemaType.cpp             |  5 ++++-
 test/Sema/typeof-use-deprecated.c | 13 +++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/lib/Sema/SemaType.cpp b/lib/Sema/SemaType.cpp
index 4d1256577d..b86dce06b4 100644
--- a/lib/Sema/SemaType.cpp
+++ b/lib/Sema/SemaType.cpp
@@ -339,6 +339,10 @@ static QualType ConvertDeclSpecToType(Sema &TheSema,
     // FIXME: Preserve type source info.
     Result = TheSema.GetTypeFromParser(DS.getRepAsType());
     assert(!Result.isNull() && "Didn't get a type for typeof?");
+    if (!Result->isDependentType())
+      if (const TagType *TT = Result->getAs<TagType>())
+        TheSema.DiagnoseUseOfDecl(TT->getDecl(), 
+                                  DS.getTypeSpecTypeLoc());
     // TypeQuals handled by caller.
     Result = Context.getTypeOfType(Result);
     break;
@@ -2213,7 +2217,6 @@ QualType Sema::BuildTypeofExprType(Expr *E) {
   }
   if (!E->isTypeDependent()) {
     QualType T = E->getType();
-    // FIXME. Issue warning for types built from deprecated types as well.
     if (const TagType *TT = T->getAs<TagType>())
       DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc());
   }
diff --git a/test/Sema/typeof-use-deprecated.c b/test/Sema/typeof-use-deprecated.c
index 2e080bae1f..238e5019f1 100644
--- a/test/Sema/typeof-use-deprecated.c
+++ b/test/Sema/typeof-use-deprecated.c
@@ -11,3 +11,16 @@ typeof(     u) z; // expected-warning {{'un' is deprecated}}
 enum E{ one} __attribute__((deprecated))  e; // expected-warning {{'E' is deprecated}} 
 
 typeof( e) w; // expected-warning {{'E' is deprecated}}
+
+struct foo { int x; } __attribute__((deprecated));
+typedef struct foo bar __attribute__((deprecated));
+bar x1;	// expected-warning {{'bar' is deprecated}}
+
+int main() { typeof(x1) y; }	// expected-warning {{'foo' is deprecated}}
+
+struct gorf { int x; };
+typedef struct gorf T __attribute__((deprecated));
+T t;	// expected-warning {{'T' is deprecated}}
+void wee() { typeof(t) y; }
+
+
-- 
2.40.0