varasm.c (const_hash): Handle FDESC_EXPR like ADDR_EXPR.

	* varasm.c (const_hash): Handle FDESC_EXPR like ADDR_EXPR.
	(compare_constant): Likewise.
	(output_addressed_constants): Likewise.

	* g++.dg/opt/vt1.C: New test.

From-SVN: r54459

gcc/ChangeLog

 2002-06-10  Jakub Jelinek  <jakub@redhat.com>
 
+	* varasm.c (const_hash): Handle FDESC_EXPR like ADDR_EXPR.
+	(compare_constant): Likewise.
+	(output_addressed_constants): Likewise.
+
+2002-06-10  Jakub Jelinek  <jakub@redhat.com>
+
 	* cfgcleanup.c (try_optimize_cfg): Make sure merge_blocks doesn't
 	merge bb with itself.
 

gcc/testsuite/ChangeLog

@@ -2,6 +2,8 @@
 
 	* gcc.c-torture/compile/20020605-1.c: New test.
 
+	* g++.dg/opt/vt1.C: New test.
+
 2002-06-07  Roger Sayle  <roger@eyesopen.com>
 
 	* gcc.dg/20020607-2.c: New test case.

gcc/testsuite/g++.dg/opt/vt1.C

+// Test whether vtable for S is not put into read-only section.
+// { dg-do compile }
+// { dg-options "-O2 -fpic -fno-rtti" }
+// Origin: Jakub Jelinek <jakub@redhat.com>
+
+struct S
+{
+  virtual void vm (void) {};
+} x;
+
+// { dg-final { scan-assembler-not "section.*_ZTV1S.*\"\[^w\"\]*\"" } }

gcc/varasm.c

@@ -2320,6 +2320,7 @@ const_hash (exp)
 	}
 
     case ADDR_EXPR:
+    case FDESC_EXPR:
       {
 	struct addr_const value;
 
@@ -2485,6 +2486,7 @@ compare_constant (t1, t2)
 	}
 
     case ADDR_EXPR:
+    case FDESC_EXPR:
       {
 	struct addr_const value1, value2;
 
@@ -3653,6 +3655,7 @@ output_addressed_constants (exp)
   switch (TREE_CODE (exp))
     {
     case ADDR_EXPR:
+    case FDESC_EXPR:
       /* Go inside any operations that get_inner_reference can handle and see
 	 if what's inside is a constant: no need to do anything here for
 	 addresses of variables or functions.  */