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PR c++/20212
authormmitchel <mmitchel@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 6 Apr 2005 15:55:00 +0000 (15:55 +0000)
committermmitchel <mmitchel@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 6 Apr 2005 15:55:00 +0000 (15:55 +0000)
* pt.c (regenerate_decl_from_template): Copy attributes for
parameters from the pattern to the instantiation.

PR c++/20212
* g++.dg/warn/Wunused-11.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@97726 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/cp/ChangeLog
gcc/cp/pt.c
gcc/testsuite/ChangeLog
gcc/testsuite/g++.dg/warn/Wunused-11.C [new file with mode: 0644]

index 4987454..39e5a45 100644 (file)
@@ -1,3 +1,9 @@
+2005-04-06  Mark Mitchell  <mark@codesourcery.com>
+
+       PR c++/20212
+       * pt.c (regenerate_decl_from_template): Copy attributes for
+       parameters from the pattern to the instantiation.
+
 2005-04-05  Mark Mitchell  <mark@codesourcery.com>
 
        PR c++/20734
index b609ecf..a6f8ad2 100644 (file)
@@ -11190,6 +11190,7 @@ regenerate_decl_from_template (tree decl, tree tmpl)
       while (decl_parm)
        {
          tree parm_type;
+         tree attributes;
 
          if (DECL_NAME (decl_parm) != DECL_NAME (pattern_parm))
            DECL_NAME (decl_parm) = DECL_NAME (pattern_parm);
@@ -11198,6 +11199,12 @@ regenerate_decl_from_template (tree decl, tree tmpl)
          parm_type = type_decays_to (parm_type);
          if (!same_type_p (TREE_TYPE (decl_parm), parm_type))
            TREE_TYPE (decl_parm) = parm_type;
+         attributes = DECL_ATTRIBUTES (pattern_parm);
+         if (DECL_ATTRIBUTES (decl_parm) != attributes)
+           {
+             DECL_ATTRIBUTES (decl_parm) = attributes;
+             cplus_decl_attributes (&decl_parm, attributes, /*flags=*/0);
+           }
          decl_parm = TREE_CHAIN (decl_parm);
          pattern_parm = TREE_CHAIN (pattern_parm);
        }
index baced95..e70b4b2 100644 (file)
@@ -1,3 +1,8 @@
+2005-04-06  Mark Mitchell  <mark@codesourcery.com>
+
+       PR c++/20212
+       * g++.dg/warn/Wunused-11.C: New test.
+
 2005-04-06  Bernd Schmidt  <bernd.schmidt@analog.com>
 
        * gcc.c-torture/execute/20020720-1.x: Disable on bfin*-*.
diff --git a/gcc/testsuite/g++.dg/warn/Wunused-11.C b/gcc/testsuite/g++.dg/warn/Wunused-11.C
new file mode 100644 (file)
index 0000000..4a151d2
--- /dev/null
@@ -0,0 +1,11 @@
+// PR c++/20212
+// { dg-options "-O2 -Wunused -Wextra" }
+
+template<int> void f(int);
+void g(int i)
+{
+  f<0>(i);
+}
+template<int> void f(int i __attribute__((unused)) )
+{}
+