https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127000
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
0x000000000273a3c5 in gimple_simplify_CONVERT_EXPR (res_op=0x7fffffffaee0,
seq=0x0, valueize=0x1de0038 <rpo_vn_valueize(tree_node*)>, code=...,
type=<pointer_type 0x7ffff741e7e0 fp_t_2>, _p0=<ssa_name 0x7ffff74242c0 3>)
at gimple-match-6.cc:8475
8475 tem = build_fold_addr_expr_with_type
Value returned is $13 = (tree_node *) 0x7ffff74145a0
/* Canonicalize (T *)(ptr - ptr-cst) to &MEM[ptr + -ptr-cst]. */
(simplify
(convert (pointer_diff @0 INTEGER_CST@1))
(if (POINTER_TYPE_P (type))
{ build_fold_addr_expr_with_type
(build2 (MEM_REF, char_type_node, @0,
wide_int_to_tree (ptr_type_node, wi::neg (wi::to_wide (@1)))),
type); }))
that doesn't really work.
