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[23.233.12.249]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-43df54b5a2fsm7517351cf.15.2024.05.09.05.21.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 May 2024 05:21:34 -0700 (PDT) Message-ID: <39a6dd89-048b-4566-8ef0-29f4fe1abfb1@redhat.com> Date: Thu, 9 May 2024 08:21:29 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [pushed][PR114810][LRA]: Recognize alternatives with lack of available registers for insn and demote them. To: "Li, Pan2" , "gcc-patches@gcc.gnu.org" References: <7dd25e5b-b936-4870-adfd-e410d3f535e0@redhat.com> From: Vladimir Makarov In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/alternative; boundary="------------OzG256I884oUSkHrl0PZ8SZN" Content-Language: en-US X-Spam-Status: No, score=-5.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,HTML_MESSAGE,KAM_SHORT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,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: This is a multi-part message in MIME format. --------------OzG256I884oUSkHrl0PZ8SZN Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 5/8/24 23:25, Li, Pan2 wrote: > > Hi Vladimir, > > Looks this patch results in some ICE in the rvv.exp of RISC-V backend, > feel free to ping me if more information is needed for reproducing. > > ========= Summary of gcc testsuite ========= > > | # of unexpected case / # of unique unexpected case > > |gcc |g++ |gfortran | > > rv64gcv/lp64d/ medlow | 1061 /69 |0 /0 |- | > > make: *** [Makefile:1096: report-gcc-newlib] Error 1 > > Just pick one imm_loop_invariant-10.c as below. > > /home/pli/gcc/111/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/imm_loop_invariant-10.c:20:1: > error: unrecognizable insn: > > (insn 265 0 0 (parallel [ > > (set (reg:RVVMF8QI 309 [239]) > > (unspec:RVVMF8QI [ > > (reg:SI 0 zero) > > ] UNSPEC_VUNDEF)) > > (clobber (scratch:SI)) > > ]) -1 > > (nil)) > > Thank you for reporting this.  Could you fill a PR for this.  I guess fixing this might take some time. --------------OzG256I884oUSkHrl0PZ8SZN--