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tcg/aarch64: Support bswap flags

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Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-06-12 23:25:16 -07:00
parent dfa24dfa09
commit 8fcfc6bff6
1 changed files with 12 additions and 0 deletions
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12
tcg/aarch64/tcg-target.c.inc
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@ -2177,12 +2177,24 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_rev(s, TCG_TYPE_I64, MO_64, a0, a1);
break;
case INDEX_op_bswap32_i64:
tcg_out_rev(s, TCG_TYPE_I32, MO_32, a0, a1);
if (a2 & TCG_BSWAP_OS) {
tcg_out_sxt(s, TCG_TYPE_I64, MO_32, a0, a0);
}
break;
case INDEX_op_bswap32_i32:
tcg_out_rev(s, TCG_TYPE_I32, MO_32, a0, a1);
break;
case INDEX_op_bswap16_i64:
case INDEX_op_bswap16_i32:
tcg_out_rev(s, TCG_TYPE_I32, MO_16, a0, a1);
if (a2 & TCG_BSWAP_OS) {
/* Output must be sign-extended. */
tcg_out_sxt(s, ext, MO_16, a0, a0);
} else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
/* Output must be zero-extended, but input isn't. */
tcg_out_uxt(s, MO_16, a0, a0);
}
break;
case INDEX_op_ext8s_i64: