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tcg: Do not recreate INDEX_op_neg_vec unless supported 

Use tcg_can_emit_vec_op instead of just TCG_TARGET_HAS_neg_vec,
so that we check the type and vece for the actual operation.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-04-20 00:27:24 +00:00
parent e1227bb6e5
commit ac383dde33
1 changed files with 6 additions and 2 deletions
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8
tcg/optimize.c
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@ -734,9 +734,13 @@ void tcg_optimize(TCGContext *s)
} else if (opc == INDEX_op_sub_i64) {
neg_op = INDEX_op_neg_i64;
have_neg = TCG_TARGET_HAS_neg_i64;
} else {
} else if (TCG_TARGET_HAS_neg_vec) {
TCGType type = TCGOP_VECL(op) + TCG_TYPE_V64;
unsigned vece = TCGOP_VECE(op);
neg_op = INDEX_op_neg_vec;
have_neg = TCG_TARGET_HAS_neg_vec;
have_neg = tcg_can_emit_vec_op(neg_op, type, vece) > 0;
} else {
break;
}
if (!have_neg) {
break;