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Fri, 15 Dec 2023 09:23:10 +0800 Received: (from haochenj@localhost) by shliclel4214.sh.intel.com (8.16.1/8.16.1/Submit) id 3BF1NAMM1930388; Fri, 15 Dec 2023 09:23:10 +0800 From: "haochen.jiang" Message-Id: <202312150123.3BF1NAMM1930388@shliclel4214.sh.intel.com> Date: Fri, 15 Dec 2023 09:23:10 +0800 To: dizhao@os.amperecomputing.com, gcc-regression@gcc.gnu.org, gcc-patches@gcc.gnu.org, haochen.jiang@intel.com Subject: [r14-6559 Regression] FAIL: gcc.dg/guality/pr58791-4.c -Os -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 on Linux/x86_64 User-Agent: s-nail v14.9.22 X-Spam-Status: No, score=-0.5 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,KAM_LAZY_DOMAIN_SECURITY,KAM_NUMSUBJECT,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=no 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 Linux/x86_64, 8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652 is the first bad commit commit 8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652 Author: Di Zhao Date: Fri Dec 15 03:22:32 2023 +0800 Consider fully pipelined FMA in get_reassociation_width caused FAIL: gcc.dg/guality/pr58791-4.c -O2 -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487 FAIL: gcc.dg/guality/pr58791-4.c -O2 -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 FAIL: gcc.dg/guality/pr58791-4.c -O2 -flto -fno-use-linker-plugin -flto-partition=none -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487 FAIL: gcc.dg/guality/pr58791-4.c -O2 -flto -fno-use-linker-plugin -flto-partition=none -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 FAIL: gcc.dg/guality/pr58791-4.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487 FAIL: gcc.dg/guality/pr58791-4.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 FAIL: gcc.dg/guality/pr58791-4.c -O3 -g -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487 FAIL: gcc.dg/guality/pr58791-4.c -O3 -g -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 FAIL: gcc.dg/guality/pr58791-4.c -Os -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i2 == 487 FAIL: gcc.dg/guality/pr58791-4.c -Os -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6559/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap To reproduce: $ cd {build_dir}/gcc && make check RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr58791-4.c --target_board='unix{-m64\ -march=cascadelake}'" (Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com.) (If you met problems with cascadelake related, disabling AVX512F in command line might save that.) (However, please make sure that there is no potential problems with AVX512.)