[cfe-commits] r85532 - in /cfe/trunk: lib/Sema/SemaOverload.cpp test/SemaTemplate/instantiate-cast.cpp

[Douglas Gregor]

Author: dgregor
Date: Thu Oct 29 18:08:22 2009
New Revision: 85532

URL: http://llvm.org/viewvc/llvm-project?rev=85532&view=rev
Log:
We may need to instantiate a class template specialization as part of a derived-to-base pointer case

Modified:
    cfe/trunk/lib/Sema/SemaOverload.cpp
    cfe/trunk/test/SemaTemplate/instantiate-cast.cpp

Modified: cfe/trunk/lib/Sema/SemaOverload.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaOverload.cpp?rev=85532&r1=85531&r2=85532&view=diff

==============================================================================
--- cfe/trunk/lib/Sema/SemaOverload.cpp (original)
+++ cfe/trunk/lib/Sema/SemaOverload.cpp Thu Oct 29 18:08:22 2009
@@ -999,6 +999,7 @@
   // here. That is handled by CheckPointerConversion.
   if (getLangOptions().CPlusPlus &&
       FromPointeeType->isRecordType() && ToPointeeType->isRecordType() &&
+      !RequireCompleteType(From->getLocStart(), FromPointeeType, PDiag()) &&
       IsDerivedFrom(FromPointeeType, ToPointeeType)) {
     ConvertedType = BuildSimilarlyQualifiedPointerType(FromTypePtr,
                                                        ToPointeeType,

Modified: cfe/trunk/test/SemaTemplate/instantiate-cast.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaTemplate/instantiate-cast.cpp?rev=85532&r1=85531&r2=85532&view=diff

==============================================================================
--- cfe/trunk/test/SemaTemplate/instantiate-cast.cpp (original)
+++ cfe/trunk/test/SemaTemplate/instantiate-cast.cpp Thu Oct 29 18:08:22 2009
@@ -96,7 +96,6 @@
 template struct FunctionalCast1<int, float>;
 template struct FunctionalCast1<A, int>; // expected-note{{instantiation}}
 
-#if 0
 // Generates temporaries, which we cannot handle yet.
 template<int N, long M>
 struct FunctionalCast2 {
@@ -106,4 +105,13 @@
 };
 
 template struct FunctionalCast2<1, 3>;
-#endif
+
+// ---------------------------------------------------------------------
+// implicit casting
+// ---------------------------------------------------------------------
+template<typename T>
+struct Derived2 : public Base { };
+
+void test_derived_to_base(Base *&bp, Derived2<int> *dp) {
+  bp = dp;
+}