re PR c++/19980 (ICE on invalid template declaration)

	PR c++/19980
	* decl.c (start_preparsed_function): Robustify.

	* g++.dg/template/redecl3.C: New test.

From-SVN: r96872

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index bb0c547eeb8a21e268a8fff29f010290a667057f..73dd59fde704da313ddab65ca85e7d5c6fbe5400 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2005-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+       PR c++/19980
+       * decl.c (start_preparsed_function): Robustify.
+
 2005-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
        PR c++/20499

diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 4887080fa30d5b034c5cc63eded60f0108f2c41c..1c4568da9d237ad737e0ad665edba60a5f2c418b 100644 (file)
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -10009,7 +10009,12 @@ start_preparsed_function (tree decl1, tree attrs, int flags)
      class scope, current_class_type will be NULL_TREE until set above
      by push_nested_class.)  */
   if (processing_template_decl)
-    decl1 = push_template_decl (decl1);
+    {
+      /* FIXME: Handle error_mark_node more gracefully.  */
+      tree newdecl1 = push_template_decl (decl1);
+      if (newdecl1 != error_mark_node)
+        decl1 = newdecl1;
+    }
 
   /* We are now in the scope of the function being defined.  */
   current_function_decl = decl1;

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3909d568423f4aae95e1b2e17f21f11ea55fdfa4..51f81b9f551909b56ff64a60665ed1ccb9666078 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+       PR c++/19980
+       * g++.dg/template/redecl3.C: New test.
+
 2005-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
        PR c++/20499

diff --git a/gcc/testsuite/g++.dg/template/redecl3.C b/gcc/testsuite/g++.dg/template/redecl3.C
new file mode 100644 (file)
index 0000000..029f9e6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/redecl3.C
@@ -0,0 +1,7 @@
+// PR c++/19980
+// Origin: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
+
+// { dg-do compile }
+
+int foo;                    // { dg-error "previous declaration" }
+template<int> void foo() {} // { dg-error "redeclared" }