From 0d57d36af5de88f86e4ec1e1abc716209f791f8f Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sun, 13 Jun 2021 12:34:30 -0700 Subject: tcg/tci: Support bswap flags MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The existing interpreter zero-extends, ignoring high bits. Simply add a separate sign-extension opcode if required. Ensure that the interpreter supports ext16s when bswap16 is enabled. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/tci/tcg-target.c.inc | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'tcg/tci') diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc index 9651e7a..0cb16aa 100644 --- a/tcg/tci/tcg-target.c.inc +++ b/tcg/tci/tcg-target.c.inc @@ -597,6 +597,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg args[TCG_MAX_OP_ARGS], const int const_args[TCG_MAX_OP_ARGS]) { + TCGOpcode exts; + switch (opc) { case INDEX_op_exit_tb: tcg_out_op_p(s, opc, (void *)args[0]); @@ -710,13 +712,28 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, CASE_64(ext32u) /* Optional (TCG_TARGET_HAS_ext32u_i64). */ CASE_64(ext_i32) CASE_64(extu_i32) - CASE_32_64(bswap16) /* Optional (TCG_TARGET_HAS_bswap16_*). */ - CASE_32_64(bswap32) /* Optional (TCG_TARGET_HAS_bswap32_*). */ - CASE_64(bswap64) /* Optional (TCG_TARGET_HAS_bswap64_i64). */ CASE_32_64(ctpop) /* Optional (TCG_TARGET_HAS_ctpop_*). */ + case INDEX_op_bswap32_i32: /* Optional (TCG_TARGET_HAS_bswap32_i32). */ + case INDEX_op_bswap64_i64: /* Optional (TCG_TARGET_HAS_bswap64_i64). */ tcg_out_op_rr(s, opc, args[0], args[1]); break; + case INDEX_op_bswap16_i32: /* Optional (TCG_TARGET_HAS_bswap16_i32). */ + exts = INDEX_op_ext16s_i32; + goto do_bswap; + case INDEX_op_bswap16_i64: /* Optional (TCG_TARGET_HAS_bswap16_i64). */ + exts = INDEX_op_ext16s_i64; + goto do_bswap; + case INDEX_op_bswap32_i64: /* Optional (TCG_TARGET_HAS_bswap32_i64). */ + exts = INDEX_op_ext32s_i64; + do_bswap: + /* The base tci bswaps zero-extend, and ignore high bits. */ + tcg_out_op_rr(s, opc, args[0], args[1]); + if (args[2] & TCG_BSWAP_OS) { + tcg_out_op_rr(s, exts, args[0], args[0]); + } + break; + CASE_32_64(add2) CASE_32_64(sub2) tcg_out_op_rrrrrr(s, opc, args[0], args[1], args[2], -- cgit v1.1