From patchwork Thu Jan 12 04:25:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takayuki 'January June' Suwa X-Patchwork-Id: 42251 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp3687688wrt; Wed, 11 Jan 2023 20:26:55 -0800 (PST) X-Google-Smtp-Source: AMrXdXvV+sVaolIi6iXYVHRDj++yqKqBzlBqwwggqR8/5qhZvq6EdBpDmtvkJDS6mkx3CtYdjoE+ X-Received: by 2002:a17:907:4d6:b0:84d:3a95:cdf5 with SMTP id vz22-20020a17090704d600b0084d3a95cdf5mr11965346ejb.10.1673497615071; Wed, 11 Jan 2023 20:26:55 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673497615; cv=none; d=google.com; s=arc-20160816; b=R3/mlE3esx0+gtnAgtatBo4kbL3FGrbp82yo+ktjNWCiFXsstKE58FirrltEe+A665 RzOtMbyetW6l5WfCRcTbgSkbPgCba2jXhkE3W4VjTx4CXMGqMMKbN1my+bidfESfpdoz ptf408HgN4lbScLhgQqpAJK1tz2rZDxtD66k0q5DrcCmYclz+AP7/NjdFE9jyQQr50VF Ac+zFowrWJy49DudVOh4bonJ//wNlkfQP63kWZBwMyZH7pzNSwWaIreG/jhAesOh7zzT 7vVxtTbg3HxeiajL1x7ThzxsWyjXXUzGWSW32VJTUEdNsBBeQhT6TsZwyT88ebVv4NOM 7rnA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:reply-to:from:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence:references :content-transfer-encoding:subject:cc:to:user-agent:mime-version :date:message-id:dmarc-filter:delivered-to:dkim-signature :dkim-filter; bh=gMIMU6u2vBNKV4S0qFnjbdmWlR+TtB8QmkNIxWgtggo=; b=hg0x7rq1Gcp6KuW6q+my/FIzodzMiaft5opVhi1R9H+GFs0+y0cmbTE+MfcN3PkWLi 2HncCKDEqpkFetpkYkzWDeyjhThvBra/0X9Vpez2HH/Q68VJPFqW/+XqgeZGXLisUcl3 b1pi5bF8MmYCoxUdAFLjjqyC2teEFCoZtSgaJgHUkahvqRHdDttnvqUI647OH/j88tUx ofIg5jawCtNIlDvQqtZ/sme7J3uNgKOlCRu1baG6d3+yzDS4bAdPawLi7NftOnw0+npf ca/WAPDeONwzgkTbcsD6323u/i4OaYpU48CXKe7y5QnPwDXDybhnynXuqWmyyZAOE2FM LmUg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=PgPKm7hk; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from sourceware.org (server2.sourceware.org. [2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id h10-20020a056402280a00b00443088b40b7si22237582ede.123.2023.01.11.20.26.54 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jan 2023 20:26:55 -0800 (PST) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=PgPKm7hk; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id DC3B0385B52C for ; Thu, 12 Jan 2023 04:26:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DC3B0385B52C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1673497613; bh=gMIMU6u2vBNKV4S0qFnjbdmWlR+TtB8QmkNIxWgtggo=; h=Date:To:Cc:Subject:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=PgPKm7hkxuByydSZL3gS8AukQLDVj347IiYkz6RgNTO8Jy1GrL870NpPWIvVFhQpa 02ZLBY5vlKPyf6R4vVyC77jtNjkBVkSQF6A4eMaZxLDy72OL0U+Ti71+Tv7hmLy5Qw Qlkd71NT3sr0J+Dd/zLbh4LTfQZE3/G+NvpVcTy4= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from sonicconh6003-vm1.mail.ssk.yahoo.co.jp (sonicconh6003-vm1.mail.ssk.yahoo.co.jp [182.22.37.42]) by sourceware.org (Postfix) with ESMTPS id E2C423858D35 for ; Thu, 12 Jan 2023 04:26:07 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org E2C423858D35 X-YMail-OSG: 8HmTiskVM1nigenpg1fdNph_BLWZ4YDnpieAX1jsrGVniCXCzji758C4Z05.r4i uAOJxTI7MboogQuhw2DdHSzEUwI2jFDO1iLE6ZTSzh5bV6reVjjtcjtcnFlD9mqRnJq_xP6BiJax Rum5NrqMQFTw0hxhx5ibTNPROnLvo2gDPGgSTlIlwSf2Ciq1mgARnxwJZmH7J5D0vSC1bZRH96N7 hklBo9yo7LwjAzr1.82q49iijIimAqeEsb0omJvDfTwzJJPFzu2zxUnuZE1BgeB0cDGjjPtG9rAQ cl0HWmDjFlSzwfaXrTnsh6zgHKqUeI1rRHRR_lSbUku.6XE.wkEs2ApujGejQN2tU0ZVTfJWzJlN VrLgbK8Pn.EYIEv.4KJinxgqrJbZMVFTUqPUrOOmpvnaLvP1i.0.E0iEVfeFxUkyA8E_Pz16Z.2J hhgK9DTIXjCL3P0tZXA7VYBLF54ZQWg6L0au1na2nhc7kC2UaluRhdNKy1EuCGwNhPzM_FgClQdy Wvc8OYwzUo.P7XwyHc.gGlVqU3k6ZtI5HB07V5op59jqswE0.xIbMcBEvFMvaxIGvVBo8HxGBEf5 TaruOErPEmW1ah2ychTO3Ar_RdnI4dVDtyOliZjQ_faTKDRIQGNjnbhbiiNzQTgnqq6K8yT3xWE2 ITVTa7HErQGCBXoFAQKvra2K_tb66uBx8AV8R5jporZPhkhKG.Q2roHqPCgXTw5gQ80wXRiLcES1 3I9LKnAIcuo._musWY1fvF31EOPNpXHcHXTji_jbu3nCOckW_Lk1Tcvx8VHbr8UVOKLZrS7E_O62 UZtnZHrVr7oN5j2mWQ.nKzwYyXCO0DFas0TuuNwQb5SlhFBMWAKGv7QE3EC7Rmub3MEKXwWcgd.N 1_0EmMzy.UFdRRgeT_ZAVONEim7rbL4ffdMuAy_AfNY83nUOS6ZiqOUk26FmRv51bWndtzOWmq1W RqkjXmik- Received: from sonicgw.mail.yahoo.co.jp by sonicconh6003.mail.ssk.yahoo.co.jp with HTTP; Thu, 12 Jan 2023 04:26:03 +0000 Received: by smtphe5001.mail.kks.ynwp.yahoo.co.jp (YJ Hermes SMTP Server) with ESMTPA ID 3de18a13078614ebaf115c7a15cb6cd7; Thu, 12 Jan 2023 13:25:59 +0900 (JST) Message-ID: <92692f27-76e3-ce45-bc25-95b9a7d2b64f@yahoo.co.jp> Date: Thu, 12 Jan 2023 13:25:58 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 To: GCC Patches Cc: Max Filippov Subject: [PATCH 1/2] xtensa: Tune "*btrue" insn pattern References: <92692f27-76e3-ce45-bc25-95b9a7d2b64f.ref@yahoo.co.jp> X-Spam-Status: No, score=-11.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Takayuki 'January June' Suwa via Gcc-patches From: Takayuki 'January June' Suwa Reply-To: Takayuki 'January June' Suwa Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754789435398264589?= X-GMAIL-MSGID: =?utf-8?q?1754789435398264589?= This branch instruction has short encoding if EQ/NE comparison against immediate zero when the Code Density Option is enabled, but its "length" attribute was only for normal encoding. This patch fixes it. This patch also prevents undesireable replacement the comparison immediate zero of the instruction (short encoding, as mentioned above) with a register that has value of zero (normal encoding) by the postreload pass. gcc/ChangeLog: * config/xtensa/xtensa.md (*btrue): Correct value of the attribute "length" that depends on TARGET_DENSITY and operands, and add '?' character to the register constraint of the compared operand. --- gcc/config/xtensa/xtensa.md | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md index db1d68ee658..b4989832169 100644 --- a/gcc/config/xtensa/xtensa.md +++ b/gcc/config/xtensa/xtensa.md @@ -1679,7 +1679,7 @@ [(set (pc) (if_then_else (match_operator 3 "branch_operator" [(match_operand:SI 0 "register_operand" "r,r") - (match_operand:SI 1 "branch_operand" "K,r")]) + (match_operand:SI 1 "branch_operand" "K,?r")]) (label_ref (match_operand 2 "" "")) (pc)))] "" @@ -1688,7 +1688,14 @@ } [(set_attr "type" "jump,jump") (set_attr "mode" "none") - (set_attr "length" "3,3")]) + (set (attr "length") + (if_then_else (match_test "TARGET_DENSITY + && CONST_INT_P (operands[1]) + && INTVAL (operands[1]) == 0 + && (GET_CODE (operands[3]) == EQ + || GET_CODE (operands[3]) == NE)") + (const_int 2) + (const_int 3)))]) (define_insn "*ubtrue" [(set (pc) From patchwork Thu Jan 12 04:26:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takayuki 'January June' Suwa X-Patchwork-Id: 42252 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp3687930wrt; Wed, 11 Jan 2023 20:27:51 -0800 (PST) X-Google-Smtp-Source: AMrXdXtXaJHMIvG+bP+3OBqf1rGjFt3Q7YlBwm26sPQUz6jslBQ/kQuPmaRb/8fVNYHmn0TSwOJT X-Received: by 2002:a50:8d8d:0:b0:469:15eb:16fa with SMTP id r13-20020a508d8d000000b0046915eb16famr61821365edh.13.1673497671104; Wed, 11 Jan 2023 20:27:51 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673497671; cv=none; d=google.com; s=arc-20160816; b=RXk3BCe2J0LBTF43+yoN8LqZiRMDJaclQE+zsNlY1e0J+fDy0Mhfo8Im/1dvep9TxA ftVBpyj6zhQkeWA2qrbgen1AyE49OfirdegcPl2RH08x5GD9cIJOmMnbseJSW+9HwegB sUO0Hkd8yo50VeRKrRKpWnzHbKAC1eSFDPlcL2iXFKEqN5ZYRRaGACnSS7zR/Qnz5z4+ udX274lyV8t+RAlW4A3kmib2l8qcHfOmhaUcl2s4hF0XkRfjfYfvah1wn6IhLN02fm8c eUfSQO8g5zpXCuYzEta6ML7dILCt6hsMRHHXL0FlaJ5ZnRzbF5RLXr7945j/6FZ879RB n22Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:reply-to:from:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence:references :content-transfer-encoding:subject:cc:to:user-agent:mime-version :date:message-id:dmarc-filter:delivered-to:dkim-signature :dkim-filter; bh=dgAJJ2IWOmFDsbueVc83orSGguMHHrk+JbtR+1Plxs0=; b=rTAnTga/fgG9xJj4D21iDxB1ONe52Rszs7968pfFm3nnbNVmeL1KW2qgbUZPBSkCrh ieSNO9/QFpFjDUViStUIJGWL4yaFwM10f9MTJ4AjlnkbbHai8OhZAQj+1oIU1NXLlW7s SBPHiXO+47952/dmljEZsEKDr8Av93juP2QNTuUIbSFD3nW+KEcNIXieKuvO3EkyhxYn pPvkIxsmW+HZXHDABkh/7qF4Ay/rvl7FcukQjYY84lri6vK80G54MEzzJbZopCc8/u16 QEZPpu7SSwxgzhs4H25uiiIiUZxu/pwPuNTv70Vf/K2kdgXvmAX1WByarzrLCRn0m6u6 omAQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=UR68P3Hg; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from sourceware.org (ip-8-43-85-97.sourceware.org. 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Thu, 12 Jan 2023 04:26:45 +0000 Received: by smtphe5006.mail.kks.ynwp.yahoo.co.jp (YJ Hermes SMTP Server) with ESMTPA ID 4af41384d4fe308683cd1350d1b18f61; Thu, 12 Jan 2023 13:26:44 +0900 (JST) Message-ID: Date: Thu, 12 Jan 2023 13:26:42 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 To: GCC Patches Cc: Max Filippov Subject: [PATCH 2/2] xtensa: Optimize ctzsi2 and ffssi2 a bit References: X-Spam-Status: No, score=-12.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Takayuki 'January June' Suwa via Gcc-patches From: Takayuki 'January June' Suwa Reply-To: Takayuki 'January June' Suwa Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754789493604305332?= X-GMAIL-MSGID: =?utf-8?q?1754789493604305332?= This patch saves one byte when the Code Density Option is enabled, gcc/ChangeLog: * config/xtensa/xtensa.md (ctzsi2, ffssi2): Rearrange the emitting codes. --- gcc/config/xtensa/xtensa.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md index b4989832169..764da63f91c 100644 --- a/gcc/config/xtensa/xtensa.md +++ b/gcc/config/xtensa/xtensa.md @@ -477,8 +477,8 @@ emit_insn (gen_negsi2 (temp, operands[1])); emit_insn (gen_andsi3 (temp, temp, operands[1])); emit_insn (gen_clzsi2 (temp, temp)); - emit_insn (gen_negsi2 (temp, temp)); - emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (31))); + emit_move_insn (operands[0], GEN_INT (31)); + emit_insn (gen_subsi3 (operands[0], operands[0], temp)); DONE; }) @@ -491,8 +491,8 @@ emit_insn (gen_negsi2 (temp, operands[1])); emit_insn (gen_andsi3 (temp, temp, operands[1])); emit_insn (gen_clzsi2 (temp, temp)); - emit_insn (gen_negsi2 (temp, temp)); - emit_insn (gen_addsi3 (operands[0], temp, GEN_INT (32))); + emit_move_insn (operands[0], GEN_INT (32)); + emit_insn (gen_subsi3 (operands[0], operands[0], temp)); DONE; })