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Mon, 28 Aug 2023 03:07:17 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D92F720043; Mon, 28 Aug 2023 03:07:16 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C6BA020040; Mon, 28 Aug 2023 03:07:15 +0000 (GMT) Received: from genoa.aus.stglabs.ibm.com (unknown [9.40.192.157]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 28 Aug 2023 03:07:15 +0000 (GMT) To: gcc-patches@gcc.gnu.org Subject: [PATCH] rs6000: mark tieable between INT and FLOAT Date: Mon, 28 Aug 2023 11:07:15 +0800 Message-Id: <20230828030715.2310469-1-guojiufu@linux.ibm.com> X-Mailer: git-send-email 2.25.1 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 1xGp2z6IPjgsFTno8w6z1cRlRm4eswpP X-Proofpoint-GUID: LuQY520hSsyGsnUEa4zX3jsCP_9DQf7U X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-08-27_22,2023-08-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=865 priorityscore=1501 clxscore=1015 impostorscore=0 suspectscore=0 adultscore=0 mlxscore=0 malwarescore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2308280027 X-Spam-Status: No, score=-10.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, 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: 2.1.30 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 Cc: bergner@linux.ibm.com, dje.gcc@gmail.com, segher@kernel.crashing.org, linkw@gcc.gnu.org Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1775440588328288437 X-GMAIL-MSGID: 1775440588328288437 Hi, For PowerPC, some INT mode and FLOAT modes can be marked as tieable, for example: DI<->DF. One note SFmode is special, it would only tieable with itself. I updated previous patch more reasonable: https://gcc.gnu.org/pipermail/gcc-patches/2023-January/609504.html 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 (mode1) == UNITS_PER_FP_WORD; + if (GET_MODE_CLASS (mode1) == MODE_INT + && GET_MODE_CLASS (mode2) == MODE_FLOAT) + return GET_MODE_SIZE (mode2) == UNITS_PER_FP_WORD; + 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 {