re PR c++/33601 (ICE with pointers to members using "const C" as the class identifier)

2007-10-26  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/33601
	* tree.c (build_offset_type): Build canonical type based on the
	TYPE_MAIN_VARIANT of the base type.

2007-10-26  Douglas Gregor  <doug.gregor@gmail.com>

	* g++.dg/other/pr33601.C: New.

From-SVN: r129659

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 626f83e..6e49d2d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-10-26  Douglas Gregor  <doug.gregor@gmail.com>
+
+       PR c++/33601
+       * tree.c (build_offset_type): Build canonical type based on the
+       TYPE_MAIN_VARIANT of the base type.
+
 2007-10-26  Daniel Jacobowitz  <dan@codesourcery.com>
 
        * reorg.c (emit_delay_sequence): Move insn locator from the

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 02339a0..4ec601f 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2007-10-26  Douglas Gregor  <doug.gregor@gmail.com>
+
+       * g++.dg/other/pr33601.C: New.
+
 2007-10-26  Paolo Carlini  <pcarlini@suse.de>
 
        PR c++/31988

diff --git a/gcc/testsuite/g++.dg/other/pr33601.C b/gcc/testsuite/g++.dg/other/pr33601.C
new file mode 100644 (file)
index 0000000..0c17009
--- /dev/null
+++ b/gcc/testsuite/g++.dg/other/pr33601.C
@@ -0,0 +1,8 @@
+struct A
+{
+  int membervar;
+};
+
+typedef const A type;
+
+int type::* getmemberptr() { return &type::membervar; }

diff --git a/gcc/tree.c b/gcc/tree.c
index 88ec29e..24e758f 100644 (file)
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -5949,10 +5949,10 @@ build_offset_type (tree basetype, tree type)
       if (TYPE_STRUCTURAL_EQUALITY_P (basetype)
          || TYPE_STRUCTURAL_EQUALITY_P (type))
        SET_TYPE_STRUCTURAL_EQUALITY (t);
-      else if (TYPE_CANONICAL (basetype) != basetype
+      else if (TYPE_CANONICAL (TYPE_MAIN_VARIANT (basetype)) != basetype
               || TYPE_CANONICAL (type) != type)
        TYPE_CANONICAL (t) 
-         = build_offset_type (TYPE_CANONICAL (basetype), 
+         = build_offset_type (TYPE_CANONICAL (TYPE_MAIN_VARIANT (basetype)),
                               TYPE_CANONICAL (type));
     }