From patchwork Mon Sep 20 08:04:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: WANG Xuerui X-Patchwork-Id: 12505409 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD196C433FE for ; Mon, 20 Sep 2021 14:07:32 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 024A46109E for ; Mon, 20 Sep 2021 14:07:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 024A46109E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen0n.name Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:42550 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mSJxD-0007I2-3n for qemu-devel@archiver.kernel.org; Mon, 20 Sep 2021 10:07:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49280) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mSEOn-0007hc-2R for qemu-devel@nongnu.org; Mon, 20 Sep 2021 04:11:37 -0400 Received: from [115.28.160.31] (port=35560 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 1mSEOj-0005Dx-4A for qemu-devel@nongnu.org; Mon, 20 Sep 2021 04:11:36 -0400 Received: from ld50.lan (unknown [101.88.25.142]) (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 3524C63406; Mon, 20 Sep 2021 16:06:05 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1632125165; bh=YMTlbote+jZVGnAyPC9IZ5S0JP/N577aC42WFM/ARxE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qqYT8x2bXQVgqORA2A/PuSD4urZZKzKfFJwiNB2Ln5/AnAg8nWOLsgdqfZoz7Qite a6krojO0c8ORviV5dmSkNEwzdYgW/6M5k2RgY6MCmEYx2SoNlEbig2T7O2juNNURRj WLFQXmYFBRyJ0ywyQKPkFObKqJobAZRv9LyO+eNg= From: WANG Xuerui To: qemu-devel@nongnu.org Subject: [PATCH 21/30] tcg/loongarch: Implement tcg_out_call Date: Mon, 20 Sep 2021 16:04:42 +0800 Message-Id: <20210920080451.408655-22-git@xen0n.name> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920080451.408655-1-git@xen0n.name> References: <20210920080451.408655-1-git@xen0n.name> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 115.28.160.31 (failed) Received-SPF: pass client-ip=115.28.160.31; envelope-from=git@xen0n.name; helo=mailbox.box.xen0n.name X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 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, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 20 Sep 2021 09:57:24 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: WANG Xuerui Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: WANG Xuerui --- tcg/loongarch/tcg-target.c.inc | 37 ++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/tcg/loongarch/tcg-target.c.inc b/tcg/loongarch/tcg-target.c.inc index fb0143474a..01c6002fdb 100644 --- a/tcg/loongarch/tcg-target.c.inc +++ b/tcg/loongarch/tcg-target.c.inc @@ -457,6 +457,42 @@ 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); + int ret; + + tcg_debug_assert((offset & 2) == 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 (TCG_TARGET_REG_BITS == 32 || offset == (int32_t)offset) { + /* long jump: +/- 2GiB */ + tcg_out_opc_pcaddu12i(s, TCG_REG_TMP0, 0); + tcg_out_opc_jirl(s, link, TCG_REG_TMP0, 0); + ret = reloc_call(s->code_ptr - 2, arg); + tcg_debug_assert(ret == true); + } else if (TCG_TARGET_REG_BITS == 64) { + /* far jump: 64-bit */ + tcg_target_long imm = sextreg((tcg_target_long)arg, 0, 12); + tcg_target_long base = (tcg_target_long)arg - imm; + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP0, base); + tcg_out_opc_jirl(s, link, TCG_REG_TMP0, imm >> 2); + } else { + g_assert_not_reached(); + } +} + +static void tcg_out_call(TCGContext *s, const tcg_insn_unit *arg) +{ + tcg_out_call_int(s, arg, false); +} + /* * Entry-points */ @@ -779,6 +815,7 @@ 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(); }