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Thu, 5 Jan 2023 19:30:32 GMT Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 481CF5805A; Thu, 5 Jan 2023 19:30:31 +0000 (GMT) Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CB9DF58051; Thu, 5 Jan 2023 19:30:30 +0000 (GMT) Received: from [9.160.100.137] (unknown [9.160.100.137]) by smtpav02.dal12v.mail.ibm.com (Postfix) with ESMTPS; Thu, 5 Jan 2023 19:30:30 +0000 (GMT) Message-ID: Date: Thu, 5 Jan 2023 13:30:30 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [PATCH] rs6000: Make P10_FUSION honour tuning setting Content-Language: en-US To: "Kewen.Lin" , GCC Patches Cc: Segher Boessenkool , David Edelsohn , Peter Bergner References: <9defdca0-1cf3-82a3-d04a-2eb4f3daf106@linux.ibm.com> From: Pat Haugen In-Reply-To: <9defdca0-1cf3-82a3-d04a-2eb4f3daf106@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: zr6aJIRwsmuDj88hKtjUckq3DvRyDC85 X-Proofpoint-ORIG-GUID: O7miYQ4GtbXVEcSlFUrO4lIrIP5nzp3b 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=2023-01-05_10,2023-01-05_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 clxscore=1011 impostorscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 mlxscore=0 suspectscore=0 malwarescore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301050150 X-Spam-Status: No, score=-13.7 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,GIT_PATCH_0,NICE_REPLY_A,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 List-Id: On 1/4/23 3:20 AM, Kewen.Lin via Gcc-patches wrote: > diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc > index 88c865b6b4b..6fa084c0807 100644 > --- a/gcc/config/rs6000/rs6000.cc > +++ b/gcc/config/rs6000/rs6000.cc > @@ -4378,9 +4378,15 @@ rs6000_option_override_internal (bool global_init_p) > rs6000_isa_flags &= ~OPTION_MASK_MMA; > } > > - if (TARGET_POWER10 > - && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION) == 0) > - rs6000_isa_flags |= OPTION_MASK_P10_FUSION; > + /* Enable power10 fusion if we are tuning for power10, even if we aren't > + generating power10 instructions. */ > + if (!(rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION)) > + { > + if (processor_target_table[tune_index].processor == PROCESSOR_POWER10) You can use (rs6000_tune == PROCESSOR_POWER10) at this point. -Pat > + rs6000_isa_flags |= OPTION_MASK_P10_FUSION; > + else > + rs6000_isa_flags &= ~OPTION_MASK_P10_FUSION; > + } >