re PR c++/45651 (ICE in import_export_decl, at cp/decl2.c:2344)

	PR c++/45651
	* pt.c (instantiate_decl): Don't clear DECL_INTERFACE_KNOWN on
	!TREE_PUBLIC decls.

From-SVN: r170807

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index ad998d3db199cb509f5443bc30cdf1319b722852..dafef233d77b2593bf0e9830c0b6d2d1dd12b863 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2011-03-08  Jason Merrill  <jason@redhat.com>
+
+       PR c++/45651
+       * pt.c (instantiate_decl): Don't clear DECL_INTERFACE_KNOWN on
+       !TREE_PUBLIC decls.
+
 2010-05-27  Jason Merrill  <jason@redhat.com>
 
        PR c++/43555

diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 434e0cf8bfffc8305b2b68dd03af79ddf06b5f69..6c5b2c0d291ea639219d598205a6b436616a7da0 100644 (file)
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -14870,8 +14870,13 @@ instantiate_decl (tree d, int defer_ok,
   if (!pattern_defined && expl_inst_class_mem_p
       && DECL_EXPLICIT_INSTANTIATION (d))
     {
-      DECL_NOT_REALLY_EXTERN (d) = 0;
-      DECL_INTERFACE_KNOWN (d) = 0;
+      /* Leave linkage flags alone on instantiations with anonymous
+        visibility.  */
+      if (TREE_PUBLIC (d))
+       {
+         DECL_NOT_REALLY_EXTERN (d) = 0;
+         DECL_INTERFACE_KNOWN (d) = 0;
+       }
       SET_DECL_IMPLICIT_INSTANTIATION (d);
     }
 

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f5661ff2db5a86d57be952eef2656db9a192cd6c..b3f0d169331e635cc66b788a32e9ad0b1cd1ed0e 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2011-03-08  Jason Merrill  <jason@redhat.com>
+
+       * g++.dg/template/anon5.C: New.
+
 2011-01-12  Eric Botcazou  <ebotcazou@adacore.com>
 
        PR testsuite/33033

diff --git a/gcc/testsuite/g++.dg/template/anon5.C b/gcc/testsuite/g++.dg/template/anon5.C
new file mode 100644 (file)
index 0000000..34599c0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/anon5.C
@@ -0,0 +1,6 @@
+// PR c++/45651
+
+namespace { template <int T> struct A {}; }
+template <int T> struct B { void f(A<T>); };
+template struct B<1>;
+template<int T> void B<T>::f(A<T>) {}