From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by sourceware.org (Postfix) with ESMTPS id 89BBE3856089 for ; Tue, 25 Jul 2023 18:02:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 89BBE3856089 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=rivosinc.com Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1bb893e6365so18099865ad.2 for ; Tue, 25 Jul 2023 11:02:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20221208.gappssmtp.com; s=20221208; t=1690308148; x=1690912948; 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=ySsarLmN6glX6i/j5JaTrnP/cxealARQ6GVTF6XlQyg=; b=ku2GQYygPg2EzoxL5jG+bkTTxdnPl8tPeKQd3T8qqK1L4d3yrjBlgzCpUvHl33Vp4C ojKjmG4tZMvviDIJBfPYnDfz+IsKtq62/SxDX3ePa7lp+GXUvXS0d2YZ4YD0XtF1sEL0 8I7lV4EX6bwRk1SENRGrJYRE9YbgQRETy0FkoO/EU6VLLoy8vMEuHuDdrKYDqAujc2Py EgNmRwi/wkG6qKrlb6ztKUn9socIcL9aItTwl/oe+F2hr3dzvYbynm8mI1mTsIGARE1f GogTVl+O6JYcV0DiWd9CvUn6mnuVfuzA33nrNEwUBzBJPGxa0Er+lPhF2anVekvLSrNf OpGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690308148; x=1690912948; 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=ySsarLmN6glX6i/j5JaTrnP/cxealARQ6GVTF6XlQyg=; b=jqyoFYkczZSA0xuJMu9SvulHQ4W22lIGK7dek/fh9kRLZqYgrCdv39WBTqEZQqlqrE i8pMNAZRBKuj04gUlMdRhw8v0OMJAr1/I64cYMzd83uBTSA69jxCDDnF2sU+rljjVCmn fiwUl7APaNDnqD3e4vKRUfkobmSKoctsL8E8ud028tK+46pf2OrWFU0/db+Hm3+mnAej 9KJGXmOWiX+xeXkIRv7gHgfqZ00qp3dC8jQiNDgM3C/P5DUZ3P/hUUtMcoSeA6HKqIc0 /gS1DEqU78sKFzMTlQx40u5vi3noWK/R0e3B0W4i5N0jwhc18Qhd0mzEBr6nNohaNzJf n16A== X-Gm-Message-State: ABy/qLbFA5gW19/UYYdyLidQO8UUoMQ5bnTvr9yHWmFGqXKvLMLsCIJu CwIlHNdc9kQsBBlU9oTnG8ELN5W+ne9kKmU+ya0= X-Google-Smtp-Source: APBJJlEjX80Q7M+ZxuhHmWHVVOAPHJ4JJdM/X7bJvOG/oYHsMeNi3V4PeChdRwi7zEJDWnGe4kWCrQ== X-Received: by 2002:a17:903:1106:b0:1bb:1e69:28be with SMTP id n6-20020a170903110600b001bb1e6928bemr14671297plh.42.1690308148122; Tue, 25 Jul 2023 11:02:28 -0700 (PDT) Received: from patrick-ThinkPad-X1-Carbon-Gen-8.hq.rivosinc.com ([50.221.140.188]) by smtp.gmail.com with ESMTPSA id p1-20020a1709028a8100b001b3ce619e2esm11283352plo.179.2023.07.25.11.02.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Jul 2023 11:02:27 -0700 (PDT) From: Patrick O'Neill To: gcc-patches@gcc.gnu.org Cc: jeffreyalaw@gmail.com, palmer@rivosinc.com, vineetg@rivosinc.com, andrew@sifive.com, kito.cheng@sifive.com, dlustig@nvidia.com, cmuellner@gcc.gnu.org, andrea@rivosinc.com, hboehm@google.com, Patrick O'Neill Subject: [gcc13 backport 03/12] RISC-V: Enforce subword atomic LR/SC SEQ_CST Date: Tue, 25 Jul 2023 11:01:57 -0700 Message-Id: <20230725180206.284777-4-patrick@rivosinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230725180206.284777-1-patrick@rivosinc.com> References: <20230427162301.1151333-1-patrick@rivosinc.com> <20230725180206.284777-1-patrick@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-13.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,GIT_PATCH_0,KAM_SHORT,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Replace LR.aq/SC.rl pairs with the SEQ_CST LR.aqrl/SC.rl pairs recommended by table A.6 of the ISA manual. 2023-04-27 Patrick O'Neill gcc/ChangeLog: * config/riscv/sync.md: Change LR.aq/SC.rl pairs into sequentially consistent LR.aqrl/SC.rl pairs. Signed-off-by: Patrick O'Neill --- gcc/config/riscv/sync.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/gcc/config/riscv/sync.md b/gcc/config/riscv/sync.md index 19274528262..0c83ef04607 100644 --- a/gcc/config/riscv/sync.md +++ b/gcc/config/riscv/sync.md @@ -109,7 +109,7 @@ "TARGET_ATOMIC && TARGET_INLINE_SUBWORD_ATOMIC" { return "1:\;" - "lr.w.aq\t%0, %1\;" + "lr.w.aqrl\t%0, %1\;" "\t%5, %0, %2\;" "and\t%5, %5, %3\;" "and\t%6, %0, %4\;" @@ -173,7 +173,7 @@ "TARGET_ATOMIC && TARGET_INLINE_SUBWORD_ATOMIC" { return "1:\;" - "lr.w.aq\t%0, %1\;" + "lr.w.aqrl\t%0, %1\;" "and\t%5, %0, %2\;" "not\t%5, %5\;" "and\t%5, %5, %3\;" @@ -278,7 +278,7 @@ "TARGET_ATOMIC && TARGET_INLINE_SUBWORD_ATOMIC" { return "1:\;" - "lr.w.aq\t%0, %1\;" + "lr.w.aqrl\t%0, %1\;" "and\t%4, %0, %3\;" "or\t%4, %4, %2\;" "sc.w.rl\t%4, %4, %1\;" @@ -443,7 +443,7 @@ "TARGET_ATOMIC && TARGET_INLINE_SUBWORD_ATOMIC" { return "1:\;" - "lr.w.aq\t%0, %1\;" + "lr.w.aqrl\t%0, %1\;" "and\t%6, %0, %4\;" "bne\t%6, %z2, 1f\;" "and\t%6, %0, %5\;" -- 2.34.1