From patchwork Fri Jul 19 01:07:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 13736805 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 AF3F1C3DA64 for ; Fri, 19 Jul 2024 01:09:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sUc6k-0005nV-Gf; Thu, 18 Jul 2024 21:08:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sUc6F-00047L-L8 for qemu-devel@nongnu.org; Thu, 18 Jul 2024 21:08:04 -0400 Received: from mail-pl1-x629.google.com ([2607:f8b0:4864:20::629]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sUc6B-0000tr-Cd for qemu-devel@nongnu.org; Thu, 18 Jul 2024 21:07:54 -0400 Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-1fc611a0f8cso9825165ad.2 for ; Thu, 18 Jul 2024 18:07:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1721351270; x=1721956070; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=xqmmPMBGBkj8EkL2sBghBJ5bQR2DDW9j3L8Pj6+n++Q=; b=yUzvaTX5AVJHx5ho1YSJXenhVWf/8ZRR/bJgKGxfnvZMom07oXG+bu+TX3GrTkUsDO V+2TwwJx62tMXO9q4EtRzmfjxk0WMhie4YhN5NIKqk6nbjTxDg9GoYRBMAfAhutRinS1 ToKnceAsGpZ5Prnp1rUtTeS+uFP11QtpPjLrpeMPi8RSmGlLl2f8favFu6H2yz9S1SO8 Dyk10r1l7Q0zDRgagw0jUGyFfZlVEpabo04gb6BkPqRdBu8yP10847r1GJMaYEQJxnVk aDoxSCPlNYpOo4sfoyimekos0FD8zQFDKzMt+EdnOkbg+ANQ5ZprXKstuwwPZufETJX7 m37g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721351270; x=1721956070; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xqmmPMBGBkj8EkL2sBghBJ5bQR2DDW9j3L8Pj6+n++Q=; b=W6BPBqxOz2oNxM2qzAF7v2+rQb8FFX1YRsDE6UN6k5Ed/1fE2mBdhkQrq8HsliCCt/ Xhc9mvBkU6P9F5W1+OPWmjnYm4zfnRnlaOoskmBVMqNcB4OkS8oa4f3zoiNvpIeymVQq /L1gIrtMcSoQYwHDrtOeFBN46vVUmp6svDE2rbTKPKWqJcwPstwBPZz3ANFHwDxoh3Ad ZhQTBl4ojEHn+3BqfqUN6V3F3sw/xKFPlND27+1Z2Lm6ss5iU6d5Gm6astB3eLXRw5X3 pfoidLGctEWY1RVkDD93Ji+4WVW84+7sS3cu3+Zy0Ge2YRWecQCzIB6oiHz1CsWghN5g Kl6A== X-Gm-Message-State: AOJu0YyAW12CZJTRs5uEuLLXow0Bzv8dA2UGpvSjkJSX14j3SwrYTNIF jphGAIW1aBw/2vd9KDk0WVmsB71m3B8VsH/ICb5sExJUTDrAtqoJhPXVrDpHNnG0N2T/9REOGfE zhvtvKg== X-Google-Smtp-Source: AGHT+IGIks0RAD5g2qiuDVYD4SHobQIeZA2XH06sKSjd1vbzdOY+l1aECfdIH0117zW+wInRsYl57w== X-Received: by 2002:a17:902:e751:b0:1fd:6677:69b4 with SMTP id d9443c01a7336-1fd66776de8mr1859415ad.49.1721351269676; Thu, 18 Jul 2024 18:07:49 -0700 (PDT) Received: from stoup.. ([203.56.128.103]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fd64d07ad9sm2067415ad.177.2024.07.18.18.07.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jul 2024 18:07:49 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, qemu-ppc@nongu.org, qemu-s390x@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 10/12] target/s390x: Use user_or_likely in access_memmove Date: Fri, 19 Jul 2024 11:07:05 +1000 Message-ID: <20240719010707.1319675-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240719010707.1319675-1-richard.henderson@linaro.org> References: <20240719010707.1319675-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::629; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x629.google.com X-Spam_score_int: 37 X-Spam_score: 3.7 X-Spam_bar: +++ X-Spam_report: (3.7 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, SUSPICIOUS_RECIPS=2.51 autolearn=no 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Invert the conditional, indent the block, and use the macro that expands to true for user-only. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/s390x/tcg/mem_helper.c | 54 +++++++++++++++++------------------ 1 file changed, 26 insertions(+), 28 deletions(-) diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index 5311a15a09..331a35b2e5 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -296,41 +296,39 @@ static void access_memmove(CPUS390XState *env, S390Access *desta, S390Access *srca, uintptr_t ra) { int len = desta->size1 + desta->size2; - int diff; assert(len == srca->size1 + srca->size2); /* Fallback to slow access in case we don't have access to all host pages */ - if (unlikely(!desta->haddr1 || (desta->size2 && !desta->haddr2) || - !srca->haddr1 || (srca->size2 && !srca->haddr2))) { - int i; + if (user_or_likely(desta->haddr1 && + srca->haddr1 && + (!desta->size2 || desta->haddr2) && + (!srca->size2 || srca->haddr2))) { + int diff = desta->size1 - srca->size1; - for (i = 0; i < len; i++) { - uint8_t byte = access_get_byte(env, srca, i, ra); - - access_set_byte(env, desta, i, byte, ra); - } - return; - } - - diff = desta->size1 - srca->size1; - if (likely(diff == 0)) { - memmove(desta->haddr1, srca->haddr1, srca->size1); - if (unlikely(srca->size2)) { - memmove(desta->haddr2, srca->haddr2, srca->size2); - } - } else if (diff > 0) { - memmove(desta->haddr1, srca->haddr1, srca->size1); - memmove(desta->haddr1 + srca->size1, srca->haddr2, diff); - if (likely(desta->size2)) { - memmove(desta->haddr2, srca->haddr2 + diff, desta->size2); + if (likely(diff == 0)) { + memmove(desta->haddr1, srca->haddr1, srca->size1); + if (unlikely(srca->size2)) { + memmove(desta->haddr2, srca->haddr2, srca->size2); + } + } else if (diff > 0) { + memmove(desta->haddr1, srca->haddr1, srca->size1); + memmove(desta->haddr1 + srca->size1, srca->haddr2, diff); + if (likely(desta->size2)) { + memmove(desta->haddr2, srca->haddr2 + diff, desta->size2); + } + } else { + diff = -diff; + memmove(desta->haddr1, srca->haddr1, desta->size1); + memmove(desta->haddr2, srca->haddr1 + desta->size1, diff); + if (likely(srca->size2)) { + memmove(desta->haddr2 + diff, srca->haddr2, srca->size2); + } } } else { - diff = -diff; - memmove(desta->haddr1, srca->haddr1, desta->size1); - memmove(desta->haddr2, srca->haddr1 + desta->size1, diff); - if (likely(srca->size2)) { - memmove(desta->haddr2 + diff, srca->haddr2, srca->size2); + for (int i = 0; i < len; i++) { + uint8_t byte = access_get_byte(env, srca, i, ra); + access_set_byte(env, desta, i, byte, ra); } } }