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Fri, 6 Jan 2023 12:25:54 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 870112004B; Fri, 6 Jan 2023 12:25:54 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 74B1720040; Fri, 6 Jan 2023 12:25:53 +0000 (GMT) Received: from pike.rch.stglabs.ibm.com (unknown [9.5.12.127]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 6 Jan 2023 12:25:53 +0000 (GMT) To: gcc-patches@gcc.gnu.org Cc: segher@kernel.crashing.org, dje.gcc@gmail.com, linkw@gcc.gnu.org, guojiufu@linux.ibm.com Subject: [PATCH] rs6000: mark tieable between INT and FLOAT Date: Fri, 6 Jan 2023 20:25:52 +0800 Message-Id: <20230106122552.145679-1-guojiufu@linux.ibm.com> X-Mailer: git-send-email 2.17.1 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: BTM5mG6geYugwb7GLva6ukHybZ85eD7n X-Proofpoint-GUID: mKzltAbtTkTt4in31z127iyflL0J4tul X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-06_06,2023-01-06_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1015 priorityscore=1501 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 mlxscore=0 mlxlogscore=990 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301060095 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Jiufu Guo via Gcc-patches From: Jiufu Guo Reply-To: Jiufu Guo Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754276040270472150?= X-GMAIL-MSGID: =?utf-8?q?1754276040270472150?= Hi, During discussing/review patches in maillist, we find more modes are tieable, e.g. DI<->DF. With some discussion, I drafted this patch to mark more tieable modes. Bootstrap and regtest pass on ppc64{,le}. Is this ok for trunk? BR, Jeff (Jiufu) gcc/ChangeLog: * config/rs6000/rs6000.cc (rs6000_modes_tieable_p): Mark more tieable modes. gcc/testsuite/ChangeLog: * g++.target/powerpc/pr102024.C: Updated. --- gcc/config/rs6000/rs6000.cc | 9 +++++++++ gcc/testsuite/g++.target/powerpc/pr102024.C | 3 ++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc index 6ac3adcec6b..3cb0186089e 100644 --- a/gcc/config/rs6000/rs6000.cc +++ b/gcc/config/rs6000/rs6000.cc @@ -1968,6 +1968,15 @@ rs6000_modes_tieable_p (machine_mode mode1, machine_mode mode2) if (ALTIVEC_OR_VSX_VECTOR_MODE (mode2)) return false; + /* SFmode format (IEEE DP) in register would not as required, + So SFmode is restrict here. */ + if (GET_MODE_CLASS (mode1) == MODE_FLOAT + && GET_MODE_CLASS (mode2) == MODE_INT) + return GET_MODE_SIZE (mode2) == UNITS_PER_FP_WORD && mode1 != SFmode; + if (GET_MODE_CLASS (mode1) == MODE_INT + && GET_MODE_CLASS (mode2) == MODE_FLOAT) + return GET_MODE_SIZE (mode1) == UNITS_PER_FP_WORD && mode2 != SFmode; + if (SCALAR_FLOAT_MODE_P (mode1)) return SCALAR_FLOAT_MODE_P (mode2); if (SCALAR_FLOAT_MODE_P (mode2)) diff --git a/gcc/testsuite/g++.target/powerpc/pr102024.C b/gcc/testsuite/g++.target/powerpc/pr102024.C index 769585052b5..27d2dc5e80b 100644 --- a/gcc/testsuite/g++.target/powerpc/pr102024.C +++ b/gcc/testsuite/g++.target/powerpc/pr102024.C @@ -5,7 +5,8 @@ // Test that a zero-width bit field in an otherwise homogeneous aggregate // generates a psabi warning and passes arguments in GPRs. -// { dg-final { scan-assembler-times {\mstd\M} 4 } } +// { dg-final { scan-assembler-times {\mmtvsrd\M} 4 { target has_arch_pwr8 } } } +// { dg-final { scan-assembler-times {\mstd\M} 4 { target { ! has_arch_pwr8 } } } } struct a_thing {