https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100418
--- Comment #10 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code:
int kgd_get_dense_grid_point_double_mesh_mesh_i;
int kgd_get_dense_grid_point_double_mesh_mesh_address[3];
kgd_get_dense_grid_point_double_mesh_mesh() {
for (; kgd_get_dense_grid_point_double_mesh_mesh_i;
kgd_get_dense_grid_point_double_mesh_mesh_i++) {
kgd_get_dense_grid_point_double_mesh_mesh_address
[kgd_get_dense_grid_point_double_mesh_mesh_i] =
(kgd_get_dense_grid_point_double_mesh_mesh_i - 1) / 2;
}
get_grid_point_single_mesh(kgd_get_dense_grid_point_double_mesh_mesh_address);
}
$ /home/dcb/gcc/results/bin/gcc -c -w -O3 -march=bdver2 bug716.c
bug716.c: In function ‘kgd_get_dense_grid_point_double_mesh_mesh’:
bug716.c:11:1: error: unrecognizable insn:
11 | }
| ^
(insn 22 21 23 5 (set (reg:V2SI 95 [ vect_patt_5.16 ])
(if_then_else:V2SI (reg:V2SI 105)
(reg:V2SI 93 [ _40 ])
(reg:V2SI 94 [ vect__1.14 ]))) -1
(nil))
during RTL pass: vregs
bug716.c:11:1: internal compiler error: in extract_insn, at recog.c:2770
