https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68259
Bug ID: 68259
Summary: [6 Regression][UBSAN] ICE tree check: expected
record_type or union_type or qual_union_type or
array_type, have reference_type in
reverse_storage_order_for_component_p, at tree.h:4392
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
Created attachment 36670
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36670&action=edit
test.ii, compile with: g++ -S -O0 -fsanitize=undefined
Compiling attached test case with today's GCC trunk using
g++ -S -O0 -fsanitize=undefined
fails as follows:
test.ii:77:1: internal compiler error: tree check: expected record_type or
union_type or qual_union_type or array_type, have reference_type in
reverse_storage_order_for_component_p, at tree.h:4392
}
^
0xf7589c tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/tree.c:9587
0xa10907 tree_check4(tree_node*, char const*, int, char const*, tree_code,
tree_code, tree_code, tree_code)
../../gcc/tree.h:3002
0xa10907 reverse_storage_order_for_component_p
../../gcc/tree.h:4392
0xa10907 get_inner_reference(tree_node*, long*, long*, tree_node**,
machine_mode*, int*, int*, int*, bool)
../../gcc/expr.c:6901
0x8e6182 get_object_alignment_2
../../gcc/builtins.c:261
0x8e5f63 get_pointer_alignment_1(tree_node*, unsigned int*, unsigned long*)
../../gcc/builtins.c:429
0x8e687b get_pointer_alignment(tree_node*)
../../gcc/builtins.c:498
0x8c80e1 ubsan_maybe_instrument_reference_or_call
../../gcc/c-family/c-ubsan.c:414
0x8c9c02 ubsan_maybe_instrument_reference(tree_node*)
../../gcc/c-family/c-ubsan.c:441
0x81d6ca cp_genericize_r
../../gcc/cp/cp-gimplify.c:1319
