From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA3FCC433EF for ; Thu, 7 Oct 2021 20:12:51 +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 744E5610EA for ; Thu, 7 Oct 2021 20:12:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 744E5610EA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:41244 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mYZl4-00071d-J4 for qemu-devel@archiver.kernel.org; Thu, 07 Oct 2021 16:12:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60564) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mYZXE-0007Ux-9t for qemu-devel@nongnu.org; Thu, 07 Oct 2021 15:58:32 -0400 Received: from mail-pj1-x1035.google.com ([2607:f8b0:4864:20::1035]:56184) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mYZXB-0003ov-BB for qemu-devel@nongnu.org; Thu, 07 Oct 2021 15:58:31 -0400 Received: by mail-pj1-x1035.google.com with SMTP id on6so5709499pjb.5 for ; Thu, 07 Oct 2021 12:58:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=vXYOXdBBhu+PFiEaUei1HZkdWwxN5pXliAXyOtaR620=; b=H+oxasSvNkKSEj6plXgulPfArKjXZubKZiJeqM5E9JrlGP0LhAgAmuKhQimDtwEGuk kTcS0Eo6mAfifuh/U2UAmO5sWATTfmzVXxemHVpA+njgfiniZOZXpn+W8xJ5A0Ah8Xgc VCfby6N5UOqfGB6R5VRf7I6I1k7SqZqMQ/HhlFuC3LwDrnmlsJdHJMkcIwoS+DeGhU8u 7xexGCb+BIN9GqXLCZecivC16IN4O//5ZlnFmPV06MUi9X3Pb+1IzTl7/Wh09qL8AjhP ic0PXDXtP6gKRnNYzDgnNVEAepirDGGGHFqoxV4FgladWxEBd5Np1Nv8Omu0UwXIxtp4 TrBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vXYOXdBBhu+PFiEaUei1HZkdWwxN5pXliAXyOtaR620=; b=Y00vaVjTBPCvtoYlDqnoPNg1UxleRWyjZZxU1cClQ/WqYMQU8jaltF/26twVo2cNca NepVwGK5P7f1ziDpCxbvlD38434gMcJI4baVIzMiQ5og2pXqV/YFzSd2Gbzzbaw23V+Y p1kFmp+ypRXHHgqiNc7tuqkg8Mq1/I5oV0thDnKfQl6Ph1XlonOeJt55PZAtnX0XaO7M a5etazuD7Y/kBNKHGQgxSc9EasfmpeWo9CffXrWwIESxJn3C7pebopPFB1NDDUsBUxBj okvsZdJiAUKksl+WhVh9QcWHKMdFv87jbBc/iy4M7Ykb95sw+oEIq2wZ10ZQPPFmCrza EzQA== X-Gm-Message-State: AOAM533zFjc5YPeh1/BKS/6IV7jBxlOETk3YYYbRXVDXHji5QVjuRsX7 /Cslio/znsUEn0k+WaeFdd8LCCVAc+uvPQ== X-Google-Smtp-Source: ABdhPJxoaNXiXYnchzCsp32XBxokkinDfG2qMt1bsOEGOfrCf8Y9/MXw5NNO12a89t3kMOvN/gX0BA== X-Received: by 2002:a17:90b:3782:: with SMTP id mz2mr7727606pjb.160.1633636707730; Thu, 07 Oct 2021 12:58:27 -0700 (PDT) Received: from localhost.localdomain ([71.212.134.125]) by smtp.gmail.com with ESMTPSA id t2sm8995380pjf.1.2021.10.07.12.58.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Oct 2021 12:58:27 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 40/48] tcg/optimize: Expand fold_addsub2_i32 to 64-bit ops Date: Thu, 7 Oct 2021 12:54:48 -0700 Message-Id: <20211007195456.1168070-41-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211007195456.1168070-1-richard.henderson@linaro.org> References: <20211007195456.1168070-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1035; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1035.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Rename to fold_addsub2. Use Int128 to implement the wider operation. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/optimize.c | 64 +++++++++++++++++++++++++++++++++----------------- 1 file changed, 43 insertions(+), 21 deletions(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index 0011ac31ec..5e662ad8f7 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -838,37 +838,59 @@ static bool fold_add(OptContext *ctx, TCGOp *op) return false; } -static bool fold_addsub2_i32(OptContext *ctx, TCGOp *op, bool add) +static bool fold_addsub2(OptContext *ctx, TCGOp *op, bool add) { if (arg_is_const(op->args[2]) && arg_is_const(op->args[3]) && arg_is_const(op->args[4]) && arg_is_const(op->args[5])) { - uint32_t al = arg_info(op->args[2])->val; - uint32_t ah = arg_info(op->args[3])->val; - uint32_t bl = arg_info(op->args[4])->val; - uint32_t bh = arg_info(op->args[5])->val; - uint64_t a = ((uint64_t)ah << 32) | al; - uint64_t b = ((uint64_t)bh << 32) | bl; + uint64_t al = arg_info(op->args[2])->val; + uint64_t ah = arg_info(op->args[3])->val; + uint64_t bl = arg_info(op->args[4])->val; + uint64_t bh = arg_info(op->args[5])->val; TCGArg rl, rh; - TCGOp *op2 = tcg_op_insert_before(ctx->tcg, op, INDEX_op_mov_i32); + TCGOp *op2; - if (add) { - a += b; + if (ctx->type == TCG_TYPE_I32) { + uint64_t a = deposit64(al, 32, 32, ah); + uint64_t b = deposit64(bl, 32, 32, bh); + + if (add) { + a += b; + } else { + a -= b; + } + + al = sextract64(a, 0, 32); + ah = sextract64(a, 32, 32); } else { - a -= b; + Int128 a = int128_make128(al, ah); + Int128 b = int128_make128(bl, bh); + + if (add) { + a = int128_add(a, b); + } else { + a = int128_sub(a, b); + } + + al = int128_getlo(a); + ah = int128_gethi(a); } rl = op->args[0]; rh = op->args[1]; - tcg_opt_gen_movi(ctx, op, rl, (int32_t)a); - tcg_opt_gen_movi(ctx, op2, rh, (int32_t)(a >> 32)); + + /* The proper opcode is supplied by tcg_opt_gen_mov. */ + op2 = tcg_op_insert_before(ctx->tcg, op, 0); + + tcg_opt_gen_movi(ctx, op, rl, al); + tcg_opt_gen_movi(ctx, op2, rh, ah); return true; } return false; } -static bool fold_add2_i32(OptContext *ctx, TCGOp *op) +static bool fold_add2(OptContext *ctx, TCGOp *op) { - return fold_addsub2_i32(ctx, op, true); + return fold_addsub2(ctx, op, true); } static bool fold_and(OptContext *ctx, TCGOp *op) @@ -1707,9 +1729,9 @@ static bool fold_sub(OptContext *ctx, TCGOp *op) return false; } -static bool fold_sub2_i32(OptContext *ctx, TCGOp *op) +static bool fold_sub2(OptContext *ctx, TCGOp *op) { - return fold_addsub2_i32(ctx, op, false); + return fold_addsub2(ctx, op, false); } static bool fold_tcg_ld(OptContext *ctx, TCGOp *op) @@ -1855,8 +1877,8 @@ void tcg_optimize(TCGContext *s) CASE_OP_32_64_VEC(add): done = fold_add(&ctx, op); break; - case INDEX_op_add2_i32: - done = fold_add2_i32(&ctx, op); + CASE_OP_32_64(add2): + done = fold_add2(&ctx, op); break; CASE_OP_32_64_VEC(and): done = fold_and(&ctx, op); @@ -1991,8 +2013,8 @@ void tcg_optimize(TCGContext *s) CASE_OP_32_64_VEC(sub): done = fold_sub(&ctx, op); break; - case INDEX_op_sub2_i32: - done = fold_sub2_i32(&ctx, op); + CASE_OP_32_64(sub2): + done = fold_sub2(&ctx, op); break; CASE_OP_32_64_VEC(xor): done = fold_xor(&ctx, op); -- 2.25.1