From patchwork Thu Aug 29 16:50:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair Francis X-Patchwork-Id: 34342 Received: (qmail 2832 invoked by alias); 29 Aug 2019 16:54:40 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 2762 invoked by uid 89); 29 Aug 2019 16:54:40 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-26.3 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_NUMSUBJECT, KAM_SHORT autolearn=ham version=3.3.1 spammy= X-HELO: esa2.hgst.iphmx.com DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1567097693; x=1598633693; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=xjakhH63eRwpxws21DbUwjPYg0L2GKCKxczNPylrov8=; b=IiquRnCHSSV3eFb1a2q1DNFDRWisGGAfdznIQVWJVH3STei0PxVrRqJw rjimVbPMn9QC/GoAUR9GzPw2TR4R+acGab5fLfMQmKXkR4cQHE5g5u3tP XLADulAM0f17R7QXlWfVh0udAEfFnJg6bkGJz66sbac1/ibvbBv2TRzZq UEi4NZp3ZM2ZYDkqTe9GaL5dGgk4yH/zbFHRKJGebPWCTQOz+eOv/nV8Z RTIr6eVEzUyVQKBwm9257b0bHK7ocT/4dWDulXmc1NVGzVsf58TgLt7ni Eq5A/baWaxWkwr5HJ0uvQwXf1ygiqvPg+Qq/wul1zdGQnl6G9m1vOPeRY A==; IronPort-SDR: xE8hdSU3UsERFrK/U1en/89/vMGI5wi1J+KkaKb3A4Sh3oxRW157+5QPFHo3ZopKCtGOh7XaAi BFaXgkZ6WUueRaW8H6vd04wh3L1dFtkCiH5HOkG37osQREpSynPi0aNUxtcvY17FJ035Di2nyJ M6jApffTjX9VmUTLQGp8xO/WzEQDw7ur4DBTVr0Tx9qgXlUj3Wd8T18Ykr/YatS+k2umGuMAuU hmddsBelU0YUQOAH88yT4xhcdoIJiUS6rgTMsMlWhZzPOgMnqw2NB1o/8IN/SHTB3YcLORCRQ9 6QM= IronPort-SDR: qlN59ohknsOBr4Ovd2CAv1u11QDHJO1NIU/B4a9WyMM5zALjT+8P//w0oajBUpXzHAVJQI3AKs NKhcUfz0RPeavmbQhkn84wlCDGf2VfClwc4nUI5JrgljvhOS2pAGaJr9nbk6w1oXm7n8DL2d+4 gUG6whilm82UJXRRzg9qVvN7ma2VnZkIscgLtH1bhYQWvQmuwyFJ9QU1NCLMTZX1EZok5NC7Cg S7N+2DZlBfTZ4H4C2UrO5dNMZH+ZVN7GQEm2XzbLSpdRTCq9KR6jcqaG/+Hg1eDrWblWRHKz5G abIm6iy+SX9EmY2+4/qw4ViQ IronPort-SDR: kFm1rSIICnylI0c7NL9bom5q3TncXa7lD1OfQRImp189wPgOBlvigGVQiIDITttc35S3/LV2P9 6zyNdwCR/RisfWDlEuZa12oPeK6i+T5BWJoV9sn6Mlp+0isaORKKajWnclEwTK5H/tWIQI8/1j 6j3oITrUEIRwPanZ7Dr87+E4z2WIGkOkjjHztw2pIA8LQuFCKZTJ8Xhqw3gTb1reikhVr39m0T jJppufSdiKZFwXBohhpzLwjGXoLyGhCWbLjEQUE5ftbK2Pek90bdp3bxmQWKKBoDgpgdmFHKps ELE= WDCIronportException: Internal From: Alistair Francis To: libc-alpha@sourceware.org Cc: arnd@arndb.de, adhemerval.zanella@linaro.org, fweimer@redhat.com, palmer@sifive.com, macro@wdc.com, zongbox@gmail.com, alistair.francis@wdc.com, alistair23@gmail.com Subject: [RFC v5 19/21] RISC-V: Fix llrint and llround missing exceptions on RV32 Date: Thu, 29 Aug 2019 09:50:51 -0700 Message-Id: In-Reply-To: References: MIME-Version: 1.0 From: Zong Li Similar to the recent fix for MIPS, ARM and S/390, RV32 is missing correct exception on overflow from llrint and llround functions because cast from floating-point types to long long do not result in correct exceptions on overflow. 2018-11-29 Zong Li * sysdeps/riscv/rv32/fix-fp-int-convert-overflow.h: New file. --- .../riscv/rv32/fix-fp-int-convert-overflow.h | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 sysdeps/riscv/rv32/fix-fp-int-convert-overflow.h diff --git a/sysdeps/riscv/rv32/fix-fp-int-convert-overflow.h b/sysdeps/riscv/rv32/fix-fp-int-convert-overflow.h new file mode 100644 index 00000000000..42155048382 --- /dev/null +++ b/sysdeps/riscv/rv32/fix-fp-int-convert-overflow.h @@ -0,0 +1,38 @@ +/* Fix for conversion of floating point to integer overflow. ARM version. + Copyright (C) 2015-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef FIX_FP_INT_CONVERT_OVERFLOW_H +#define FIX_FP_INT_CONVERT_OVERFLOW_H 1 + +/* The generic libgcc2.c conversions from floating point + to long long may not raise the correct exceptions on overflow (and + may raise spurious "inexact" exceptions even in non-overflow cases, + see ). */ +#define FIX_FLT_LONG_CONVERT_OVERFLOW 0 +#define FIX_FLT_LLONG_CONVERT_OVERFLOW 1 + +#define FIX_DBL_LONG_CONVERT_OVERFLOW 0 +#define FIX_DBL_LLONG_CONVERT_OVERFLOW 1 + +#define FIX_LDBL_LONG_CONVERT_OVERFLOW 0 +#define FIX_LDBL_LLONG_CONVERT_OVERFLOW 0 + +#define FIX_FLT128_LONG_CONVERT_OVERFLOW 0 +#define FIX_FLT128_LLONG_CONVERT_OVERFLOW 0 + +#endif /* fix-fp-int-convert-overflow.h */