https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101534
Bug ID: 101534
Summary: ICE in create_tailcall_accumulator, at
tree-tailcall.c:1083
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: ---
Affects versions down to at least r5, at -O2+ :
$ cat z1.c
typedef int V __attribute__ ((vector_size (2 * sizeof (int))));
V
foo (void)
{
V v = { };
return v - foo();
}
$ gcc-12-20210718 -c z1.c -O1
$
$ gcc-12-20210718 -c z1.c -O2
during GIMPLE pass: tailr
z1.c: In function 'foo':
z1.c:7:1: internal compiler error: in fold_convert_loc, at fold-const.c:2542
7 | }
| ^
0xa3ce55 fold_convert_loc(unsigned int, tree_node*, tree_node*)
../../gcc/fold-const.c:2542
0x106c4fd create_tailcall_accumulator
../../gcc/tree-tailcall.c:1083
0x106ef5e tree_optimize_tail_calls_1
../../gcc/tree-tailcall.c:1166
