From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by sourceware.org (Postfix) with ESMTPS id 3DC85384AB79 for ; Mon, 27 May 2024 14:05:17 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 3DC85384AB79 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 3DC85384AB79 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2a00:1450:4864:20::62b ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1716818719; cv=none; b=FHQk9cEzyVsVOBvqoiKAx8JrKs9fdZWRxZXAnQs1h+QHdluwTlvTGZLUPg4m2zEoEij4JxjK+Edound9fknVpqBmcPyB862FUiPucbz/5GVttkcFO47HqHyf1ZUhy4XUrqF+0RkWmorxGY+LWoCS3GUMwjCYKR2gkACpoDHCf/0= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1716818719; c=relaxed/simple; bh=S88ows84il/28Qu5kY2/zHukvolZD7s8MZ6qqKKUfVw=; h=DKIM-Signature:MIME-Version:From:Date:Message-ID:Subject:To; b=BWv3MRMvb4wVtxL1EaMVU56eG2bZpvHQo5Bo62LO0w1jFRHL+ej1HTrFP4tjBg1Pi7d8V+IetQbmThVzeddkFtkHY8zXNKQNd2m5TdI3ix5aXJ6L8OR7VKm6dc+uiCgghhlSyeXyHNo40FtStyjfzOJkt8Q0QaWZ5YGc+IImg1s= ARC-Authentication-Results: i=1; server2.sourceware.org Received: by mail-ej1-x62b.google.com with SMTP id a640c23a62f3a-a6267778b3aso226743866b.3 for ; Mon, 27 May 2024 07:05:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1716818716; x=1717423516; darn=gcc.gnu.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=KPwwLxPPzAET9yEPQw2uS/jF2VmNWyMnIX0HTCgzdsM=; b=U7WQj0oFwuCThYoVKPMIpIAf0oe+t8ro214XdWTpNe4ciKnVpFMcv2CrihXwP8v9MO qNIF5bxevyZZHbsogi3yN1uKoiT4GZ0yckJhh/4pkQIQDpI4ohkv36UmVhzCUd/fll0v G1wYSvpp59J5bnvYJXRowGK3WQPAm4yV/xuMkaEVM+i0pujut8gvIbkCkIszLp4VWdKC /FhNkaF3/U/qhkqyMpVNhKHGSvoHp/EaHJrqu+NmI63hebrHdufsA3sm3USgzlFAfSCu JLiaxnreOfJ1a+OdXaiFD5kvOR9ENADO3Dho+NQ4FnQBoPue98aja79gy1cn/CN/GX/Q tmQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716818716; x=1717423516; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=KPwwLxPPzAET9yEPQw2uS/jF2VmNWyMnIX0HTCgzdsM=; b=TggapCyHVgHFXcGErXGyZyEcdRhaPl28N8CEEWwEyEpqGXw8eDyKUUOjBiokjHeU0B n/RWwhg/pG5DKoWJCFmzLLC8vrARoFYnnRlMbvjxUmwtd1qrJ7hWikzLD3yKTGk46gHj QGiCooVWKsgYSetWQqbXtLKrizreV9tPmAHdUXQ6YBLmv385dREKeXgqV5+fDgrjhNq0 pn4XzEzwJ9WLu7D38dj/7xHBu7htdyjB16rvQvedLx4rSbGcV1zgJBAJCTNDhBHnKUYX jqPukaaT55f2TZUHScZrAgeeukFey7OyFUsi/FS2nKtFWZYqzzmuG7c0L3h9isXfi28+ h0jQ== X-Forwarded-Encrypted: i=1; AJvYcCXSl/OubGnub5y9N7E2vrAl5uGnKzGBDtR7O8T2vhxPT6G8IXlqaIUuDiscr6zGD0X/PJhYVzBi8Nxo0Ces048sSeVXRZ+mUw== X-Gm-Message-State: AOJu0YxtP44QHpofS/ZRTN3ZXmR1FT8hhTz3d4Y//i70XGubAHIAj86L fVTpbdFkAMLs2Xi/Sx5sUpIVynNCvoqMDzfqC5SWNQYPMj8v0XPMum23l7VHQUaSvIK/iSR7iO0 96B0lF5qhXzIcVu25zBzt3xAyNrw= X-Google-Smtp-Source: AGHT+IGOGMbOZflyhLsPN7L7Jd7oNW52ghhZ9xdN6jIRMNGnK3cXO/SILcbVcPFzN04r+6Xe/kv7XDZP57lgwp8+JsI= X-Received: by 2002:a17:906:bb0d:b0:a60:c58e:d323 with SMTP id a640c23a62f3a-a62641c48c0mr601623066b.10.1716818715419; Mon, 27 May 2024 07:05:15 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Kito Cheng Date: Mon, 27 May 2024 22:05:04 +0800 Message-ID: Subject: Re: [PATCH v3] RISC-V: Introduce -mvector-strict-align. To: Robin Dapp Cc: Palmer Dabbelt , jeffreyalaw@gmail.com, gcc-patches@gcc.gnu.org, juzhe.zhong@rivai.ai Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-3.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: > @@ -9536,6 +9549,12 @@ riscv_override_options_internal (struct gcc_options *opts) > riscv_slow_unaligned_access_p = (cpu->tune_param->slow_unaligned_access > || TARGET_STRICT_ALIGN); > > + /* By default, when -mno-vector-strict-align is not specified, do not allow > + unaligned vector memory accesses except if -mtune's setting explicitly > + allows it. */ > + riscv_vector_unaligned_access_p = rvv_vector_strict_align == 0 || opts->x_rvv_vector_strict_align rather than rvv_vector_strict_align, rvv_vector_strict_align is alias of global_options.x_rvv_vector_strict_align > + cpu->tune_param->vector_unaligned_access; > + > /* Make a note if user explicitly passed -mstrict-align for later > builtin macro generation. Can't use target_flags_explicitly since > it is set even for -mno-strict-align. */