From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-101.freemail.mail.aliyun.com (out30-101.freemail.mail.aliyun.com [115.124.30.101]) by sourceware.org (Postfix) with ESMTPS id C183E3858439 for ; Wed, 20 Dec 2023 11:19:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org C183E3858439 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=linux.alibaba.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org C183E3858439 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=115.124.30.101 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1703071147; cv=none; b=MCR6DC+PggS8CMtRQMIGpkndQvhH0sqQOWfHR20aOkF9xNrFDeN6STI1EfAndqdPD3vwofv0QsUO02S4xerPstdD2j8FVHPN3aWYXB0a5Wr6aPaMR7dP9GD2MQc66JVyfqYeYTNiPYCmUqPUZp9VHyGkfd3/IvBXFsjzaJvS38Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1703071147; c=relaxed/simple; bh=HUbMTb1b6l8UVc2aJXEfFbrOB0jtQnIjSlQKFXJ5qxA=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=LNDaRCTw+H7UI8oEUP/k90FGTUw8z4CMxmVLXtnjPj1NQ0cXP0ZWZz4r+QbFjT+RwBCjGAAnEfUHqFFGpY0ScdK+ukC/4NRB/OjHWkFqkgVmGKx0HzOs8hilN2/TOV/VMsNikyPXUzmiHH2yk7/7vWPVf7IsL7qBzVTYW3g/mKc= ARC-Authentication-Results: i=1; server2.sourceware.org X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045192;MF=jinma@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0VyuNcMK_1703071131; Received: from localhost.localdomain(mailfrom:jinma@linux.alibaba.com fp:SMTPD_---0VyuNcMK_1703071131) by smtp.aliyun-inc.com; Wed, 20 Dec 2023 19:18:53 +0800 From: Jin Ma To: gcc-patches@gcc.gnu.org, jeffreyalaw@gmail.com Cc: richard.sandiford@arm.com, kito.cheng@gmail.com, christoph.muellner@vrull.eu, jinma.contrib@gmail.com, Jin Ma Subject: [PATCH] Support libcall __float{,un}sibf by SF when it is not supported for _bf16 Date: Wed, 20 Dec 2023 19:17:48 +0800 Message-Id: <20231220111748.684-1-jinma@linux.alibaba.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20230919084444.2089-1-jinma@linux.alibaba.com> References: <20230919084444.2089-1-jinma@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-20.5 required=5.0 tests=BAYES_00,ENV_AND_HDR_SPF_MATCH,GIT_PATCH_0,KAM_DMARC_STATUS,KAM_NUMSUBJECT,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: We don't have SI -> BF library functions, use SI -> SF -> BF instead. Although this can also be implemented in a target machine description, it is more appropriate to move into target independent code. gcc/ChangeLog: * optabs.cc (expand_float): Split SI -> BF into SI -> SF -> BF. --- gcc/optabs.cc | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/gcc/optabs.cc b/gcc/optabs.cc index 6a34276c239..c58a0321bbd 100644 --- a/gcc/optabs.cc +++ b/gcc/optabs.cc @@ -5727,6 +5727,19 @@ expand_float (rtx to, rtx from, int unsignedp) if (is_narrower_int_mode (GET_MODE (from), SImode)) from = convert_to_mode (SImode, from, unsignedp); +#ifdef HAVE_SFmode + if (REAL_MODE_FORMAT (GET_MODE (to)) == &arm_bfloat_half_format + && REAL_MODE_FORMAT (SFmode) == &ieee_single_format + && GET_MODE (from) == SImode) + /* We don't have SI -> BF library functions, use SI -> SF -> BF + instead. */ + { + target = gen_reg_rtx (SFmode); + expand_float (target, from, unsignedp); + goto done; + } +#endif + libfunc = convert_optab_libfunc (tab, GET_MODE (to), GET_MODE (from)); gcc_assert (libfunc); -- 2.17.1