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tcg: Fix expansion of INDEX_op_not_vec

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This operation can always be emitted, even if we need to
fall back to xor. Adjust the assertions to match.

Backports commit 11978f6f58f1d3d66429f7ff897524f693d823ce from qemu
This commit is contained in:
Richard Henderson 2019-08-08 19:23:01 -04:00 committed by Lioncash
parent 6f8c8046d8
commit 955661ad7b
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1 changed files with 6 additions and 0 deletions
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6
qemu/tcg/tcg-op-vec.c
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@ -92,6 +92,9 @@ bool tcg_can_emit_vecop_list(const TCGOpcode *list,
case INDEX_op_bitsel_vec:
/* These opcodes are mandatory and should not be listed. */
g_assert_not_reached();
case INDEX_op_not_vec:
/* These opcodes have generic expansions using the above. */
g_assert_not_reached();
default:
break;
}
@ -440,11 +443,14 @@ static bool do_op2(TCGContext *s, unsigned vece, TCGv_vec r, TCGv_vec a, TCGOpco
void tcg_gen_not_vec(TCGContext *s, unsigned vece, TCGv_vec r, TCGv_vec a)
{
const TCGOpcode *hold_list = tcg_swap_vecop_list(s, NULL);
if (!TCG_TARGET_HAS_not_vec || !do_op2(s, vece, r, a, INDEX_op_not_vec)) {
TCGv_vec t = tcg_const_ones_vec_matching(s, r);
tcg_gen_xor_vec(s, 0, r, a, t);
tcg_temp_free_vec(s, t);
}
tcg_swap_vecop_list(s, hold_list);
}
void tcg_gen_neg_vec(TCGContext *s, unsigned vece, TCGv_vec r, TCGv_vec a)