[Bug target/94438] [8/9/10 Regression] ICE: verify_gimple failed: position plus size exceeds size of referenced object in 'bit_field_ref' with -mavx512vbmi -mavx512vl
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Apr 1 11:12:03 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94438
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2020-04-01
CC| |jakub at gcc dot gnu.org
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Adjusted testcase so that it doesn't use uninitialized var:
typedef __attribute__ ((__vector_size__ (sizeof (__int128)))) __int128 V;
void
foo (V w)
{
V v = 0 <= (0 >= w);
}
And:
typedef __attribute__ ((__vector_size__ (4 * sizeof (__int128)))) __int128 V;
void
foo (V w)
{
V v = 0 <= (0 >= w);
}
ICEs in another spot (only -mavx512vbmi is needed for this one):
during RTL pass: expand
pr94438-2.c: In function ‘foo’:
pr94438-2.c:6:11: internal compiler error: in expand_vec_cond_expr, at
optabs.c:5884
6 | V v = 0 <= (0 >= w);
| ~~^~~~~~~~~~~
0x10edd07 expand_vec_cond_expr(tree_node*, tree_node*, tree_node*, tree_node*,
rtx_def*)
../../gcc/optabs.c:5882
0xd20e4b do_store_flag
../../gcc/expr.c:12148
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