[cfe-commits] r163848 - /cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp

[Douglas Gregor]

Author: dgregor
Date: Thu Sep 13 17:01:49 2012
New Revision: 163848

URL: http://llvm.org/viewvc/llvm-project?rev=163848&view=rev
Log:
Actually rebuild function types properly when adjusting the function
type of an instantiation.

Modified:
    cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp

Modified: cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp?rev=163848&r1=163847&r2=163848&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp (original)
+++ cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp Thu Sep 13 17:01:49 2012
@@ -1017,10 +1017,19 @@
 static QualType adjustFunctionTypeForInstantiation(ASTContext &Context,
                                                    FunctionDecl *D,
                                                    TypeSourceInfo *TInfo) {
-  const FunctionType *OrigFunc = D->getType()->castAs<FunctionType>();
-  const FunctionType *NewFunc = TInfo->getType()->castAs<FunctionType>();
-  return QualType(Context.adjustFunctionType(NewFunc, OrigFunc->getExtInfo()),
-                  0);
+  const FunctionProtoType *OrigFunc
+    = D->getType()->castAs<FunctionProtoType>();
+  const FunctionProtoType *NewFunc
+    = TInfo->getType()->castAs<FunctionProtoType>();
+  if (OrigFunc->getExtInfo() == NewFunc->getExtInfo())
+    return TInfo->getType();
+
+  FunctionProtoType::ExtProtoInfo NewEPI = NewFunc->getExtProtoInfo();
+  NewEPI.ExtInfo = OrigFunc->getExtInfo();
+  return Context.getFunctionType(NewFunc->getResultType(),
+                                 NewFunc->arg_type_begin(),
+                                 NewFunc->getNumArgs(),
+                                 NewEPI);
 }
 
 /// Normal class members are of more specific types and therefore


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