From 8fcfc6bff61f1faf0a530b4fae292931a39cc32b Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 12 Jun 2021 23:25:16 -0700 Subject: [PATCH] tcg/aarch64: Support bswap flags MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- tcg/aarch64/tcg-target.c.inc | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc index 8619e54fca..72aa7e0e74 100644 --- a/tcg/aarch64/tcg-target.c.inc +++ b/tcg/aarch64/tcg-target.c.inc @@ -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: -- 2.30.2