From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtpbgsg1.qq.com (smtpbgsg1.qq.com [54.254.200.92]) by sourceware.org (Postfix) with ESMTPS id 4F3423858D20 for ; Fri, 14 Apr 2023 06:39:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 4F3423858D20 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=rivai.ai Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=rivai.ai X-QQ-mid: bizesmtp83t1681454363tad9fmfp Received: from LAPTOP-EPITNQBU ( [58.60.1.20]) by bizesmtp.qq.com (ESMTP) with id ; Fri, 14 Apr 2023 14:39:22 +0800 (CST) X-QQ-SSF: 01400000000000F0O000000A0000000 X-QQ-FEAT: znfcQSa1hKYool3ynvNeef3ZpXHstK/NyKVOjIdQu0hi68VGld1u22y/fjbFb w3lx+TceEDX5YP7tH9ErDDmWq6h424z7iQhpJDSJA6wv4u/aFuT8mBOQry6/uYPIcJgo7YS po71c/evy8fCH0G7HD/Nr3+m3OIYVlpEUDWE2fcO2Iejpec63EouIAbERzqdJ0mFRHYZfJn SPV0Lt759z6rqK+fD9bTdE/oIV/UHR3u33cKQf+K3jq9s2UM/fBg6lMUXOof2om661lTnxJ +lqS/DDfgjlpfkVeSo9HU8eWEgjpdU1emPBO64cCEG+RketzJr6FbChB9uwC223UVBLgWG6 xQf8LF4KzKLrVufslhMOhcxMdnO77M6GeLkL27j5M08+6i/csg8V1uD9KBop3zqXIJqWC5G YGAb2buh29cXVxkuvWt/CNk+qvnWYkKF X-QQ-GoodBg: 2 X-BIZMAIL-ID: 1661654783412047956 Date: Fri, 14 Apr 2023 14:39:22 +0800 From: "juzhe.zhong@rivai.ai" To: linkw Cc: gcc-patches , jeffreyalaw , rdapp , richard.sandiford , rguenther Subject: Re: Re: [PATCH] VECT: Add WHILE_LEN pattern for decrement IV support for auto-vectorization References: <20230407014741.139387-1-juzhe.zhong@rivai.ai>, <63723855B0BF2130+2023041120125573846623@rivai.ai>, , , <139DA38AFC9CA5B5+2023041216004591287739@rivai.ai>, , , , , , , <8D9731A1540E082A+202304122122129793085@rivai.ai>, <0fb64ee1-1bf6-2a5f-4214-7567af5facbd@linux.ibm.com>, <9D802FBA3E3A18CE+2023041321440689154856@rivai.ai>, , <2E7B1DB75F2F78AE+2023041411394350100020@rivai.ai>, <7f9a1d2e-84af-95a5-76b9-bb50a458842c@linux.ibm.com> X-Priority: 3 X-GUID: 47FA1414-9176-4D4C-BB22-B62075C19D49 X-Has-Attach: no X-Mailer: Foxmail 7.2.16.188[cn] Mime-Version: 1.0 Message-ID: Content-Type: multipart/alternative; boundary="----=_001_NextPart755325084852_=----" X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:rivai.ai:qybglogicsvr:qybglogicsvr7 X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,HTML_MESSAGE,KAM_DMARC_STATUS,KAM_SHORT,RCVD_IN_BARRACUDACENTRAL,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,RCVD_IN_SORBS_WEB,SPF_HELO_PASS,SPF_PASS,TXREP,T_KAM_HTML_FONT_INVALID,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: This is a multi-part message in MIME format. ------=_001_NextPart755325084852_=---- Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 Pj4gWWVhaCwgTUlOX0VYUFIgaXMgZW5vdWdoIGZvciBJQk0gcG9ydHMsIGJ1 dCB3aXRoIHNlZWluZyB0aGUgc3BlY2lhbCBzZW1hbnRpYyBvZiB2c2V0dmxp IG9uDQo+PiAidmwgPSBjZWlsKEFWTCAvIDIpIGZvciBWTE1BWCA8IEFWTCA8 IDIqVkxNQVgiLCBJJ20gbm90IHN1cmUgaWYgaXQncyBhIGdvb2QgaWRlYSBm b3IgUlYsIGl0IHNlZW1zDQo+PiB0byBwdXQgdGhlIGJ1cmRlbiB0byBSViBi YWNrZW5kLiAgRm9yIG9uZSBjYXNlIHRoYXQgdGhlIGl0ZXJhdGlvbiBjb3Vu dCBpcyBrbm93biwgb24gdGhlIGVudmlyb25tZW50DQo+PiB3aXRoIHRoZSBh Ym92ZSBjYXBhYmlsaXR5LCB1c2luZyB0aGUgdmVjdG9yIHNldHRpbmcgYXMg WzFdLCBhc3N1bWluZyB0aGUgZ2l2ZW4gaXRlcmF0aW9ucyBpcyAxMCwNCj4+ IGZ1bGx5IHVucm9sbGVkLCB3aGVuIHVzaW5nIE1JTl9FWFBSLCB0aGUgbGVu Z3RocyBmb3IgdHdvIGl0ZXJhdGlvbnMgd291bGQgYmUgZm9sZGVkIGludG8g OC8yLCB3aGlsZQ0KPj4gdXNpbmcgV0hJTEVfTEVOIGFydGlmaWNpYWwgZm9s ZGluZyBjYW4gbWFrZSB0aGUgbGVuZ3RocyBiZSA1LzUuICBJIGFzc3VtZWQg dGhhdCBvbiB0aGUgZW52aXJvbm1lbnQNCj4+IHdpdGggdGhlIGFib3ZlIGNh cGFiaWxpdHkgNS81IGlzIG9wdGltYWwgdGhhbiA4LzI/IHRoYXQgbWVhbnMg aWYgd2UgdXNlIE1JTiB0aGVuIFJWIGJhY2tlbmQgaGFzIHRvDQo+PiB0cnkg dG8gbWFrZSA4LzIgdG8gNS81LiAgT3IgaXQncyB0cml2aWFsIHNpbmNlIFJW IGJhY2tlbmQgYWxyZWFkeSBzdXBwb3J0cyBhbmQgcGxhbnMgdG8gc3VwcG9y dCB0aGlzDQo+PiBraW5kIG9mIHZzZXR2bGkgbG9hZCByZS1iYWxhbmNpbmc/ DQpUaGlzIGlzIGEgdHJpdmlhbCBwb3dlciBvcHRpbWl6YXRpb24gZmVhdHVy ZSBvZiBSVlYuIEkgZG9uJ3QgdGhpbmsgbWFraW5nIGl0IGluIG1pZGRsZS1l bmQgaXMgYSBnb29kIGlkZWENCnNpbmNlIHRoZSBtaWRkbGUtZW5kIGlzIHN1 cHBvc2VkIHRvIGJlIHRvdGFsbHkgdGFyZ2V0LWluZGVwZW5kZW50LiBBbmQg SSBmaWd1cmVkIG91dCByZS1iYWxhbmNpbmcNCnZzZXR2bGkgaXMgbm90IGRp ZmZpY3VsdCB0byBkbyB0aGF0IGluIFJJU0MtViBwb3J0LiANCg0KDQo+PiBZ ZXMsIGlmIHlvdSBkb24ndCBuZWVkIFdISUxFX0xFTiwgdGhpcyBwcm9wb3Nh bCBpcyBtb3JlIGxpa2UgdG8gZW5oYW5jZSB0aGUgY3VycmVudCBwYXJ0aWFs DQo+PiB2ZWN0b3JpemF0aW9uIHdpdGggbGVuZ3RoIChtYWlubHkgb24gbGVu Z3RoIHByZXBhcmF0aW9uIGFuZCBsb29wIGNvbnRyb2wpLiAgQnV0IHdoeSB3 b3VsZCB3ZSBuZWVkDQo+PiBhIG5ldyB0YXJnZXQgaG9vaz8gIFlvdSB3YW50 IHRvIGtlZXAgdGhlIGV4aXN0aW5nIGxlbmd0aCBoYW5kbGluZ3MgaW4gdmVj dF9zZXRfbG9vcF9jb250cm9sc19kaXJlY3RseQ0KPj4gdW5jaGFuZ2VkPyBp dCBzZWVtcyBub3QgbmVjZXNzYXJ5LiAgSUlVQywgbm90IHJlcXVpcmluZyBX SElMRV9MRU4gYWxzbyBtZWFucyB0aGF0IHRoaXMgcGF0Y2gNCj4+IGRvZXNu J3QgbmVjZXNzYXJpbHkgYmxvY2sgdGhlIG90aGVyIFJWIGJhY2tlbmQgcGF0 Y2hlcyBvbiB2ZWN0b3Igd2l0aCBsZW5ndGggZXhwbG9pdGF0aW9uIHNpbmNl DQo+PiB0aGUgZXhpc3RpbmcgdmVjdG9yIHdpdGggbGVuZ3RoIHN1cHBvcnQg YWxyZWFkeSB3b3JrcyB3ZWxsIG9uIGZ1bmN0aW9uYWxpdHkuDQpPaywgSSBn ZXQgeW91ciBwb2ludC4gSSBhbSBnb25uYSByZWZpbmUgdGhlIHBhdGNoIHRv IG1ha2UgaXQgd29yayBmb3IgYm90aCBSVlYgYW5kIElCTS4NCg0KVGhhbmtz IGFsbCB5b3VyIGNvbW1lbnRzLg0KDQoNCmp1emhlLnpob25nQHJpdmFpLmFp DQogDQpGcm9tOiBLZXdlbi5MaW4NCkRhdGU6IDIwMjMtMDQtMTQgMTQ6MzEN ClRvOiBqdXpoZS56aG9uZ0ByaXZhaS5haQ0KQ0M6IGdjYy1wYXRjaGVzOyBq ZWZmcmV5YWxhdzsgcmRhcHA7IHJpY2hhcmQuc2FuZGlmb3JkOyByZ3VlbnRo ZXINClN1YmplY3Q6IFJlOiBbUEFUQ0hdIFZFQ1Q6IEFkZCBXSElMRV9MRU4g cGF0dGVybiBmb3IgZGVjcmVtZW50IElWIHN1cHBvcnQgZm9yIGF1dG8tdmVj dG9yaXphdGlvbg0KSGkgSnV6aGUsDQogDQpvbiAyMDIzLzQvMTQgMTE6Mzks IGp1emhlLnpob25nQHJpdmFpLmFpIHdyb3RlOg0KPiBBbmQgYWxzbyBJIGFs cmVhZHkgZGVjaWRlZCB0byBtYWtlIHJlbW92ZSBXSElMRV9MRU4gcGF0dGVy biBzaW5jZSBpdCBzZWVtcyB0byBiZSB1bm5lY2Vzc2FyeS4NCj4gQW5kIGFz IFJpY2hhcmQgc2FpZCwgaXQncyBqdXN0IGEgc2ltcGxlIGFpcnRobWV0aWMg YW5kIGl0J3Mgbm90IHdvcnRod2hpbGUgdG8gZG8gdGhhdC4NCj4gPiBTbywg SSBwbGFuIHRvIHJlcGxhY2UgV0hJTEVfTEVOIGludG8gTUlOX0VYUFIgYW5k IG1ha2UgZXZlcnl0aGluZyBSVlYgc3BlY2lmaWMgZG9uZSBpbiBSSVNDLVYg cG9ydC4NCiANClllYWgsIE1JTl9FWFBSIGlzIGVub3VnaCBmb3IgSUJNIHBv cnRzLCBidXQgd2l0aCBzZWVpbmcgdGhlIHNwZWNpYWwgc2VtYW50aWMgb2Yg dnNldHZsaSBvbg0KInZsID0gY2VpbChBVkwgLyAyKSBmb3IgVkxNQVggPCBB VkwgPCAyKlZMTUFYIiwgSSdtIG5vdCBzdXJlIGlmIGl0J3MgYSBnb29kIGlk ZWEgZm9yIFJWLCBpdCBzZWVtcw0KdG8gcHV0IHRoZSBidXJkZW4gdG8gUlYg YmFja2VuZC4gIEZvciBvbmUgY2FzZSB0aGF0IHRoZSBpdGVyYXRpb24gY291 bnQgaXMga25vd24sIG9uIHRoZSBlbnZpcm9ubWVudA0Kd2l0aCB0aGUgYWJv dmUgY2FwYWJpbGl0eSwgdXNpbmcgdGhlIHZlY3RvciBzZXR0aW5nIGFzIFsx XSwgYXNzdW1pbmcgdGhlIGdpdmVuIGl0ZXJhdGlvbnMgaXMgMTAsDQpmdWxs eSB1bnJvbGxlZCwgd2hlbiB1c2luZyBNSU5fRVhQUiwgdGhlIGxlbmd0aHMg Zm9yIHR3byBpdGVyYXRpb25zIHdvdWxkIGJlIGZvbGRlZCBpbnRvIDgvMiwg d2hpbGUNCnVzaW5nIFdISUxFX0xFTiBhcnRpZmljaWFsIGZvbGRpbmcgY2Fu IG1ha2UgdGhlIGxlbmd0aHMgYmUgNS81LiAgSSBhc3N1bWVkIHRoYXQgb24g dGhlIGVudmlyb25tZW50DQp3aXRoIHRoZSBhYm92ZSBjYXBhYmlsaXR5IDUv NSBpcyBvcHRpbWFsIHRoYW4gOC8yPyB0aGF0IG1lYW5zIGlmIHdlIHVzZSBN SU4gdGhlbiBSViBiYWNrZW5kIGhhcyB0bw0KdHJ5IHRvIG1ha2UgOC8yIHRv IDUvNS4gIE9yIGl0J3MgdHJpdmlhbCBzaW5jZSBSViBiYWNrZW5kIGFscmVh ZHkgc3VwcG9ydHMgYW5kIHBsYW5zIHRvIHN1cHBvcnQgdGhpcw0Ka2luZCBv ZiB2c2V0dmxpIGxvYWQgcmUtYmFsYW5jaW5nPw0KIA0KWzFdIGh0dHBzOi8v Z2NjLmdudS5vcmcvcGlwZXJtYWlsL2djYy1wYXRjaGVzLzIwMjMtQXByaWwv NjE1NjM0Lmh0bWwNCiANCj4gSSB0aGluayBpdCdzIG1vcmUgcmVhc29uYWJs ZSBmb3IgSUJNIHVzZSBhbmQgbW9yZSB0YXJnZXQgdXNlIGluIHRoZSBmdXR1 cmUuDQo+IA0KIA0KSWYgUlYgbmVlZHMgV0hJTEVfTEVOLCBJTUhPIHRoZXkg Y2FuIGNvLWV4aXN0LCBsaWtlOiBmb3IgcG9ydHMgZGVmaW5pbmcgbGVuX3ts b2FkLHN0b3JlfSBidXQgbm8NCndoaWxlX2xlbiwgdXNlIE1JTjsgZm9yIHBv cnRzIGRlZmluaW5nIHdoaWxlX2xlbiwgdGhlbiB1c2UgV0hJTEVfTEVOLg0K IA0KPiBTbywgdGhpcyBwYXRjaCB3aWxsIG5lZWQgdG8gY2hhbmdlZCBhcyAi aW50cm9kdWNlIGEgbmV3IGZsb3cgdG8gZG8gdmVjdG9yaXphdGlvbiBsb29w IGNvbnRyb2wiIHdoaWNoIGlzIGEgbmV3IGxvb3AgY29udHJvbCBmbG93DQo+ IHdpdGggc2F0dXJhdGluZyBzdWJ0cmFjdGluZyBuIGRvd24gdG8gemVybywg YW5kIGFkZCBhIHRhcmdldCBob29rIGZvciBpdCBzbyB0aGF0IHdlIGNhbiBz d2l0Y2ggdG8gdGhpcyBmbG93ID8NCiANClllcywgaWYgeW91IGRvbid0IG5l ZWQgV0hJTEVfTEVOLCB0aGlzIHByb3Bvc2FsIGlzIG1vcmUgbGlrZSB0byBl bmhhbmNlIHRoZSBjdXJyZW50IHBhcnRpYWwNCnZlY3Rvcml6YXRpb24gd2l0 aCBsZW5ndGggKG1haW5seSBvbiBsZW5ndGggcHJlcGFyYXRpb24gYW5kIGxv b3AgY29udHJvbCkuICBCdXQgd2h5IHdvdWxkIHdlIG5lZWQNCmEgbmV3IHRh cmdldCBob29rPyAgWW91IHdhbnQgdG8ga2VlcCB0aGUgZXhpc3RpbmcgbGVu Z3RoIGhhbmRsaW5ncyBpbiB2ZWN0X3NldF9sb29wX2NvbnRyb2xzX2RpcmVj dGx5DQp1bmNoYW5nZWQ/IGl0IHNlZW1zIG5vdCBuZWNlc3NhcnkuICBJSVVD LCBub3QgcmVxdWlyaW5nIFdISUxFX0xFTiBhbHNvIG1lYW5zIHRoYXQgdGhp cyBwYXRjaA0KZG9lc24ndCBuZWNlc3NhcmlseSBibG9jayB0aGUgb3RoZXIg UlYgYmFja2VuZCBwYXRjaGVzIG9uIHZlY3RvciB3aXRoIGxlbmd0aCBleHBs b2l0YXRpb24gc2luY2UNCnRoZSBleGlzdGluZyB2ZWN0b3Igd2l0aCBsZW5n dGggc3VwcG9ydCBhbHJlYWR5IHdvcmtzIHdlbGwgb24gZnVuY3Rpb25hbGl0 eS4NCiANCkJSLA0KS2V3ZW4NCiANCg== ------=_001_NextPart755325084852_=------