From mboxrd@z Thu Jan 1 00:00:00 1970 From: cov@codeaurora.org (Christopher Covington) Date: Thu, 24 Mar 2016 10:36:48 -0400 Subject: [PATCH 1/2] ARM64:VDSO: Improve gettimeofday, don't use udiv In-Reply-To: <1457898620-1867-2-git-send-email-apinski@cavium.com> References: <1457898620-1867-1-git-send-email-apinski@cavium.com> <1457898620-1867-2-git-send-email-apinski@cavium.com> Message-ID: <56F3FB80.50402@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 03/13/2016 03:50 PM, Andrew Pinski wrote: > On many cores, udiv with a large value is slow, expand instead > the division out to be what GCC would have generated for the > divide by 1000. This like checking object code into version control. Why not write in C and let GCC perform the generation? Thanks, Cov -- Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project