https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105166
Bug ID: 105166
Summary: [12 Regression] ICE in ao_ref_init_from_ptr_and_range,
at tree-ssa-alias.cc:863
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started between 20211107 and 20211114, at -O1+ :
$ cat z1.c
bar (foo, a)
int (**foo) ();
{
(foo)[1] = bar;
foo[1] (1);
}
$ gcc-12-20220403 -c z1.c -O2
z1.c:1:1: warning: return type defaults to 'int' [-Wimplicit-int]
1 | bar (foo, a)
| ^~~
z1.c: In function 'bar':
z1.c:1:1: warning: type of 'a' defaults to 'int' [-Wimplicit-int]
during GIMPLE pass: dse
z1.c:1:1: internal compiler error: in ao_ref_init_from_ptr_and_range, at
tree-ssa-alias.cc:863
0xcfd747 ao_ref_init_from_ptr_and_range(ao_ref*, tree_node*, bool, poly_int<1u,
long>, poly_int<1u, long>, poly_int<1u, long>)
../../gcc/tree-ssa-alias.cc:863
0xa1080b modref_access_node::get_ao_ref(gcall const*, ao_ref*) const
../../gcc/ipa-modref-tree.cc:688
0xd03eb3 stmt_kills_ref_p(gimple*, ao_ref*)
../../gcc/tree-ssa-alias.cc:3461
0xd28b56 dse_classify_store(ao_ref*, gimple*, bool, simple_bitmap_def*, bool*,
tree_node*)
../../gcc/tree-ssa-dse.cc:1053
0xd2aecf dse_optimize_stmt
../../gcc/tree-ssa-dse.cc:1385
0xd2aecf execute
../../gcc/tree-ssa-dse.cc:1491
