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[108.223.40.66]) by smtp.gmail.com with ESMTPSA id n9-v6sm3919610pfg.21.2018.09.12.09.58.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Sep 2018 09:58:18 -0700 (PDT) Date: Wed, 12 Sep 2018 09:58:17 -0700 From: Guenter Roeck To: Vineet Gupta Cc: linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARCv2: build: use mcpu=hs38 iso generic mcpu=archs Message-ID: <20180912165817.GA5118@roeck-us.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Fri, Sep 07, 2018 at 03:13:10PM -0700, Vineet Gupta wrote: > helps gcc with better instruction selections such as 64-bit multiply MPYD > > before > ------ > 82c34b58 : > 82c34b58: ld r2,[0x83068d00] > 82c34b60: add_s r2,r2,0x7530 > 82c34b66: mov_s r0,0x989680 > 82c34b6c: mpymu r5,r2,r0 > 82c34b70: mpy r4,r2,r0 > 82c34b74: mov_s r0,r4 > 82c34b76: j_s.d [blink] > 82c34b78: mov_s r1,r5 > 82c34b7a: nop_s > > after > ------ > 82c34b7c : > 82c34b7c: ld r0,[0x83064d00] > 82c34b84: add_s r0,r0,0x7530 > 82c34b8a: mpydu r0,r0,0x989680 > 82c34b92: j_s [blink] > > Signed-off-by: Vineet Gupta This patch causes my arc2 test builds to fail Building arc:axs103_defconfig ... failed -------------- Error log: standard input}: Assembler messages: {standard input}:154: Error: inappropriate arguments for opcode 'st' {standard input}:157: Error: Insn j_s has a jump/branch instruction j_s in its delay slot. {standard input}:186: Error: inappropriate arguments for opcode 'st' make[3]: *** [net/core/dev.o] Error 1 make[2]: *** [net/core] Error 2 Building arc:nsim_hs_smp_defconfig ... failed -------------- Error log: {standard input}: Assembler messages: {standard input}:218: Error: inappropriate arguments for opcode 'st' {standard input}:9329: Error: inappropriate arguments for opcode 'st' Building arc:vdk_hs38_smp_defconfig ... failed -------------- Error log: {standard input}: Assembler messages: {standard input}:9629: Error: inappropriate arguments for opcode 'st' {standard input}:9883: Error: inappropriate arguments for opcode 'st' I use a toolchain based on gcc 7.3.0 and binutils 2.30. What version of gcc and binutils do I need for the builds to complete ? Thanks, Guenter