From c6a98619f7179a3564008ea9c9b3672821a6812f Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 5 Apr 2023 18:40:44 -0700 Subject: [PATCH] tcg/mips: Conditionalize tcg_out_exts_i32_i64 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Since TCG_TYPE_I32 values are kept sign-extended in registers, we need not extend if the register matches. This is already relied upon by comparisons. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/mips/tcg-target.c.inc | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc index 346c614354..a83ebe8729 100644 --- a/tcg/mips/tcg-target.c.inc +++ b/tcg/mips/tcg-target.c.inc @@ -582,7 +582,9 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rs) static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg rd, TCGReg rs) { - tcg_out_ext32s(s, rd, rs); + if (rd != rs) { + tcg_out_ext32s(s, rd, rs); + } } static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg rd, TCGReg rs) -- 2.30.2