https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69336
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Not fixed with r232508. Fixed with the suggested
Index: gcc/tree-ssa-scopedtables.c
===================================================================
--- gcc/tree-ssa-scopedtables.c (revision 232508)
+++ gcc/tree-ssa-scopedtables.c (working copy)
@@ -214,7 +214,7 @@ avail_expr_hash (class expr_hash_elt *p)
{
/* T could potentially be a switch index or a goto dest. */
tree t = expr->ops.single.rhs;
- if (TREE_CODE (t) == MEM_REF || TREE_CODE (t) == ARRAY_REF)
+ if (TREE_CODE (t) == MEM_REF || handled_component_p (t))
{
/* Make equivalent statements of both these kinds hash together.
Dealing with both MEM_REF and ARRAY_REF allows us not to care
@@ -251,9 +251,9 @@ avail_expr_hash (class expr_hash_elt *p)
static bool
equal_mem_array_ref_p (tree t0, tree t1)
{
- if (TREE_CODE (t0) != MEM_REF && TREE_CODE (t0) != ARRAY_REF)
+ if (TREE_CODE (t0) != MEM_REF && ! handled_component_p (t0))
return false;
- if (TREE_CODE (t1) != MEM_REF && TREE_CODE (t1) != ARRAY_REF)
+ if (TREE_CODE (t1) != MEM_REF && ! handled_component_p (t1))
return false;
if (!types_compatible_p (TREE_TYPE (t0), TREE_TYPE (t1)))
