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bh=2lVGu00lXqmNBx7mlXY91VOh3ORAFwpSJmvc/C86l9g=; b=ViupnrzW46OgI4XIYfcvIcLLrKFfq8tyzlX6TviMY5ecDaV43nnKbPufaclSanWP6H wTV7rB/5fztsBaXzkhcip250xDDfZIO3ozuhR9IRGrgEvtJRlMMoYykMOb8JfqRAq5TN lfBsTqSUiRLUJZgY3tIRlpVdZUWjuTB1SQxgiEjiAkNqB4i7be7kATb6vwLeIXJBlJa0 9WHl/33Pm9Od33yUm+lNl8I8hBFfItBPWHYUVIlT4AQWQgN0gLhYD7I2Au9LVu3kv/B1 3psnTSZ/oKi7MxzyWTxT0trdzaLmIS5WlExxUbVIaWw+9JJsxBw6jkEjxNUSJoRoqynn VqLg== X-Gm-Message-State: AJIora/tL3zXVd1DM9cuSZjhR8F9w+4OWzw8X9091uj0zeTk+LuQ+gPy EFohsmOojZ2yQ1U0QBaqbo3oTiWQFa4= X-Received: by 2002:a5d:6483:0:b0:21d:99c5:cb6e with SMTP id o3-20020a5d6483000000b0021d99c5cb6emr22823386wri.592.1658145643527; Mon, 18 Jul 2022 05:00:43 -0700 (PDT) Received: from fatty.nomansland ([193.187.151.25]) by smtp.gmail.com with ESMTPSA id h7-20020adf9cc7000000b0021d8faf57d5sm11049233wre.74.2022.07.18.05.00.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Jul 2022 05:00:43 -0700 (PDT) To: gcc-patches@gcc.gnu.org Subject: [committed 2/2] libgcc/arc: Update udivmodsi4 and make the lib safe for rf16 Date: Mon, 18 Jul 2022 15:00:36 +0300 Message-Id: <20220718120036.3290240-2-claziss@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220718120036.3290240-1-claziss@gmail.com> References: <20220718120036.3290240-1-claziss@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-12.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, KAM_NUMSUBJECT, 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: Claudiu Zissulescu via Gcc-patches From: "Li, Pan2 via Gcc-patches" Reply-To: Claudiu Zissulescu Cc: fbedard@synopsys.com, Claudiu Zissulescu 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?1738691875486351438?= X-GMAIL-MSGID: =?utf-8?q?1738691875486351438?= From: Claudiu Zissulescu The ARC soft udivmodsi4 algorithm and as well as using umodsi3 for reduced register set configurations are wrong. libgcc/ * config/arc/lib2funcs.c (udivmodsi4): Update AND mask. * config/arc/lib1funcs.S (umodsi3): Don't use it for RF16 configurations. --- libgcc/config/arc/lib1funcs.S | 2 ++ libgcc/config/arc/lib2funcs.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/libgcc/config/arc/lib1funcs.S b/libgcc/config/arc/lib1funcs.S index 14fd1d2f303..b06361257d1 100644 --- a/libgcc/config/arc/lib1funcs.S +++ b/libgcc/config/arc/lib1funcs.S @@ -936,6 +936,7 @@ SYM(__divsi3): #endif /* L_divsi3 */ +#ifndef __ARC_RF16__ #ifdef L_umodsi3 .section .text .align 4 @@ -950,6 +951,7 @@ SYM(__umodsi3): ENDFUNC(__umodsi3) #endif /* L_umodsi3 */ +#endif /* !__ARC_RF16__ */ #ifdef L_modsi3 .section .text diff --git a/libgcc/config/arc/lib2funcs.c b/libgcc/config/arc/lib2funcs.c index 70727b55365..8cba45172b2 100644 --- a/libgcc/config/arc/lib2funcs.c +++ b/libgcc/config/arc/lib2funcs.c @@ -59,7 +59,7 @@ udivmodsi4 (nint32_t num, nint32_t den, word_t modwanted) nint32_t bit = 1; nint32_t res = 0; - while (den < num && bit && !(den & (1LL << 63))) + while (den < num && bit && !(den & (1L << 31))) { den <<= 1; bit <<= 1;