From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:32769) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g87sH-0006Dr-AD for qemu-devel@nongnu.org; Thu, 04 Oct 2018 13:57:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1g87s3-0005gE-74 for qemu-devel@nongnu.org; Thu, 04 Oct 2018 13:57:14 -0400 Received: from mail-oi1-x244.google.com ([2607:f8b0:4864:20::244]:38497) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1g87s2-0005eN-Lj for qemu-devel@nongnu.org; Thu, 04 Oct 2018 13:57:07 -0400 Received: by mail-oi1-x244.google.com with SMTP id u197-v6so8228630oif.5 for ; Thu, 04 Oct 2018 10:57:05 -0700 (PDT) From: Richard Henderson Date: Thu, 4 Oct 2018 12:56:56 -0500 Message-Id: <20181004175700.20847-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v3 0/4] softfloat: Fix division List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: alex.bennee@linaro.org, cota@braap.org Changes from v2: * Add shift128Left. I had been using shortShift128Left, with a shift of 64, which lead to undefined behaviour. Which I suspect is exactly the Heisenbug Alex saw. I did keep the R-b tags I had already applied. r~ Richard Henderson (4): softfloat: Fix division softfloat: Specialize udiv_qrnnd for x86_64 softfloat: Specialize udiv_qrnnd for s390x softfloat: Specialize udiv_qrnnd for ppc64 include/fpu/softfloat-macros.h | 62 +++++++++++++++++++++++++++++----- fpu/softfloat.c | 35 ++++++++++++++----- 2 files changed, 80 insertions(+), 17 deletions(-) -- 2.17.1