From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34788) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dIjoI-0002gZ-7h for qemu-devel@nongnu.org; Wed, 07 Jun 2017 18:52:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dIjoF-0000he-L2 for qemu-devel@nongnu.org; Wed, 07 Jun 2017 18:52:18 -0400 Received: from mail-yw0-x241.google.com ([2607:f8b0:4002:c05::241]:35105) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dIjoF-0000hV-H6 for qemu-devel@nongnu.org; Wed, 07 Jun 2017 18:52:15 -0400 Received: by mail-yw0-x241.google.com with SMTP id p144so1302950ywp.2 for ; Wed, 07 Jun 2017 15:52:15 -0700 (PDT) From: Pranith Kumar Date: Wed, 7 Jun 2017 18:52:10 -0400 Message-Id: <20170607225212.23714-2-bobby.prani@gmail.com> In-Reply-To: <20170607225212.23714-1-bobby.prani@gmail.com> References: <20170607225212.23714-1-bobby.prani@gmail.com> Subject: [Qemu-devel] [RFC PATCH 1/3] tcg/aarch64: Introduce and use jump to register List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: alex.bennee@linaro.org Cc: qemu-devel@nongnu.org, rth@twiddle.net Signed-off-by: Pranith Kumar --- tcg/aarch64/tcg-target.inc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index 1fa3bccc89..ab0a8caa03 100644 --- a/tcg/aarch64/tcg-target.inc.c +++ b/tcg/aarch64/tcg-target.inc.c @@ -819,6 +819,12 @@ static inline void tcg_out_goto(TCGContext *s, tcg_insn_unit *target) tcg_out_insn(s, 3206, B, offset); } +static inline void tcg_out_goto_register(TCGContext *s, intptr_t target) +{ + tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_TMP, target); + tcg_out_insn(s, 3207, BR, TCG_REG_TMP); +} + static inline void tcg_out_goto_noaddr(TCGContext *s) { /* We pay attention here to not modify the branch target by reading from @@ -1364,10 +1370,10 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_exit_tb: /* Reuse the zeroing that exists for goto_ptr. */ if (a0 == 0) { - tcg_out_goto(s, s->code_gen_epilogue); + tcg_out_goto_register(s, (intptr_t)(s->code_gen_epilogue)); } else { tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_X0, a0); - tcg_out_goto(s, tb_ret_addr); + tcg_out_goto_register(s, (intptr_t)(tb_ret_addr)); } break; -- 2.13.0