From patchwork Fri Mar 11 18:12:23 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 86439 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id BF5ABB6FBB for ; Sat, 12 Mar 2011 05:13:51 +1100 (EST) Received: from localhost ([127.0.0.1]:54461 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Py6qR-0002xL-8Y for incoming@patchwork.ozlabs.org; Fri, 11 Mar 2011 13:13:47 -0500 Received: from [140.186.70.92] (port=46778 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Py6pI-0002tm-8Q for qemu-devel@nongnu.org; Fri, 11 Mar 2011 13:12:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Py6pH-0005mh-7P for qemu-devel@nongnu.org; Fri, 11 Mar 2011 13:12:36 -0500 Received: from mnementh.archaic.org.uk ([81.2.115.146]:53506) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Py6pG-0005kF-W2 for qemu-devel@nongnu.org; Fri, 11 Mar 2011 13:12:35 -0500 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.72) (envelope-from ) id 1Py6p9-0005kC-1f; Fri, 11 Mar 2011 18:12:27 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Fri, 11 Mar 2011 18:12:23 +0000 Message-Id: <1299867146-22049-5-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <1299867146-22049-1-git-send-email-peter.maydell@linaro.org> References: <1299867146-22049-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 81.2.115.146 Cc: patches@linaro.org Subject: [Qemu-devel] [PATCH 4/7] target-arm: Fix VCLE.F32 #0, VCLT.F32 #0 NaN handling X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Implementing the floating-point versions of VCLE #0 and VCLT #0 by doing a GT comparison and inverting the result gives the wrong result if the input is a NaN. Implement as a GT comparison with the operands swapped instead. Signed-off-by: Peter Maydell --- target-arm/translate.c | 18 ++++++++++++------ 1 files changed, 12 insertions(+), 6 deletions(-) diff --git a/target-arm/translate.c b/target-arm/translate.c index f4be8dc..adba4bf 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -5639,25 +5639,31 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn) gen_neon_rsb(size, tmp, tmp2); tcg_temp_free(tmp2); break; - case 24: case 27: /* Float VCGT #0, Float VCLE #0 */ + case 24: /* Float VCGT #0 */ tmp2 = tcg_const_i32(0); gen_helper_neon_cgt_f32(tmp, cpu_env, tmp, tmp2); tcg_temp_free(tmp2); - if (op == 27) - tcg_gen_not_i32(tmp, tmp); break; - case 25: case 28: /* Float VCGE #0, Float VCLT #0 */ + case 25: /* Float VCGE #0 */ tmp2 = tcg_const_i32(0); gen_helper_neon_cge_f32(tmp, cpu_env, tmp, tmp2); tcg_temp_free(tmp2); - if (op == 28) - tcg_gen_not_i32(tmp, tmp); break; case 26: /* Float VCEQ #0 */ tmp2 = tcg_const_i32(0); gen_helper_neon_ceq_f32(tmp, cpu_env, tmp, tmp2); tcg_temp_free(tmp2); break; + case 27: /* Float VCLE #0 */ + tmp2 = tcg_const_i32(0); + gen_helper_neon_cge_f32(tmp, cpu_env, tmp2, tmp); + tcg_temp_free(tmp2); + break; + case 28: /* Float VCLT #0 */ + tmp2 = tcg_const_i32(0); + gen_helper_neon_cgt_f32(tmp, cpu_env, tmp2, tmp); + tcg_temp_free(tmp2); + break; case 30: /* Float VABS */ gen_vfp_abs(0); break;