From patchwork Tue Dec 14 08:01:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: WANG Xuerui X-Patchwork-Id: 12675605 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0599FC433F5 for ; Tue, 14 Dec 2021 08:24:11 +0000 (UTC) Received: from localhost ([::1]:56086 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mx36Y-0005bv-4z for qemu-devel@archiver.kernel.org; Tue, 14 Dec 2021 03:24:10 -0500 Received: from eggs.gnu.org ([209.51.188.92]:35894) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mx2mw-00078y-Iu for qemu-devel@nongnu.org; Tue, 14 Dec 2021 03:03:54 -0500 Received: from mail.xen0n.name ([115.28.160.31]:48656 helo=mailbox.box.xen0n.name) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mx2ms-0000Wj-VG for qemu-devel@nongnu.org; Tue, 14 Dec 2021 03:03:54 -0500 Received: from ld50.lan (unknown [101.88.31.179]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by mailbox.box.xen0n.name (Postfix) with ESMTPSA id 52F0B60610; Tue, 14 Dec 2021 16:03:34 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1639469014; bh=/2sga6hpOcAljMbKsWO5RWjxLhaPYLtiwIRh+W51Uag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nVQ9KSJJAFElevBHVPeWh9bpHAwTG5k6piUt17xL/aPKRPHsz8T2IIPT/mIHRFRKn NehLQbM1+tqCCMq963tF6JXHewSooVknnL6nd1TfnaRk4trLAf17TSXIh6nJJi8Ex9 9+6m+afzBwJoUr2SZ4Bi+cBhFCIp+CRMtIlMuOEM= From: WANG Xuerui To: qemu-devel@nongnu.org Subject: [PATCH v9 21/31] tcg/loongarch64: Implement tcg_out_call Date: Tue, 14 Dec 2021 16:01:44 +0800 Message-Id: <20211214080154.196350-22-git@xen0n.name> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211214080154.196350-1-git@xen0n.name> References: <20211214080154.196350-1-git@xen0n.name> MIME-Version: 1.0 Received-SPF: pass client-ip=115.28.160.31; envelope-from=git@xen0n.name; helo=mailbox.box.xen0n.name X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , XiaoJuan Yang , Richard Henderson , =?utf-8?q?Philippe_Mathie?= =?utf-8?q?u-Daud=C3=A9?= , Laurent Vivier , WANG Xuerui , =?utf-8?q?Alex_Benn=C3=A9e?= , Song Gao Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: WANG Xuerui Reviewed-by: Richard Henderson --- tcg/loongarch64/tcg-target.c.inc | 34 ++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index 682bf76ceb..e470d7e145 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -532,6 +532,39 @@ static void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGReg arg1, tcg_out32(s, encode_djsk16_insn(op, arg1, arg2, 0)); } +static void tcg_out_call_int(TCGContext *s, const tcg_insn_unit *arg, bool tail) +{ + TCGReg link = tail ? TCG_REG_ZERO : TCG_REG_RA; + ptrdiff_t offset = tcg_pcrel_diff(s, arg); + + tcg_debug_assert((offset & 3) == 0); + if (offset == sextreg(offset, 0, 28)) { + /* short jump: +/- 256MiB */ + if (tail) { + tcg_out_opc_b(s, offset >> 2); + } else { + tcg_out_opc_bl(s, offset >> 2); + } + } else if (offset == sextreg(offset, 0, 38)) { + /* long jump: +/- 256GiB */ + tcg_target_long lo = sextreg(offset, 0, 18); + tcg_target_long hi = offset - lo; + tcg_out_opc_pcaddu18i(s, TCG_REG_TMP0, hi >> 18); + tcg_out_opc_jirl(s, link, TCG_REG_TMP0, lo >> 2); + } else { + /* far jump: 64-bit */ + tcg_target_long lo = sextreg((tcg_target_long)arg, 0, 18); + tcg_target_long hi = (tcg_target_long)arg - lo; + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP0, hi); + tcg_out_opc_jirl(s, link, TCG_REG_TMP0, lo >> 2); + } +} + +static void tcg_out_call(TCGContext *s, const tcg_insn_unit *arg) +{ + tcg_out_call_int(s, arg, false); +} + /* * Entry-points */ @@ -882,6 +915,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ case INDEX_op_mov_i64: + case INDEX_op_call: /* Always emitted via tcg_out_call. */ default: g_assert_not_reached(); }