* rtl.h (REG_VTABLE_REF): New.

        * rtl.c (reg_note_name): Add it.
        * combine.c (distribute_notes): Handle it.
        * final.c (final_scan_insn): Handle it.
        * tree.def (VTABLE_REF): New.
        * expr.c (expand_expr): Handle it.
        * varasm.c (assemble_vtable_entry, assemble_vtable_inherit): New.
        * output.h: Declare them.
cp/
        * class.c (build_vtable_entry_ref): Create a VTABLE_REF instead
        of an asm statement.
        (build_vtbl_ref_1): Split out from build_vtbl_ref.
        (build_vfn_ref): Use it to handle vtable descriptors before
        calling build_vtable_entry_ref.
        * decl2.c (output_vtable_inherit): Use assemble_vtable_inherit.
testsuite/
        * g++.old-deja/g++.other/crash18.C: Add -S to options.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46195 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/tree.def b/gcc/tree.def
index 4b155b0796c..8a02e5b2f60 100644
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -374,6 +374,13 @@ DEFTREECODE (ARRAY_REF, "array_ref", 'r', 2)
    of the range is taken from the type of the expression.  */
 DEFTREECODE (ARRAY_RANGE_REF, "array_range_ref", 'r', 2)
 
+/* Vtable indexing.  Carries data useful for emitting information
+   for vtable garbage collection.
+   Operand 0: an array_ref (or equivalent expression)
+   Operand 1: the vtable base (must be a var_decl)
+   Operand 2: index into vtable (must be an integer_cst).  */
+DEFTREECODE (VTABLE_REF, "vtable_ref", 'r', 3)
+
 /* Constructor: return an aggregate value made from specified components.
    In C, this is used only for structure and array initializers.
    Also used for SET_TYPE in Chill (and potentially Pascal).