From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 1D62E3856DCA; Tue, 9 Aug 2022 13:05:44 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1D62E3856DCA From: "malat at debian dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/106322] tree-vectorize: Wrong code at O2 level (-fno-tree-vectorize is working) Date: Tue, 09 Aug 2022 13:05:43 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 12.1.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: malat at debian dot org X-Bugzilla-Status: WAITING X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Aug 2022 13:05:44 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106322 --- Comment #25 from Mathieu Malaterre --- (In reply to Martin Li=C5=A1ka from comment #24) > > sid64 % g++ *.cc -O2 -m32 && ./a.out >=20 > Please provide output with --verbose. % g++ --verbose *.cc -O2 -m32 && ./a.out Using built-in specs. COLLECT_GCC=3Dg++ COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/x86_64-linux-gnu/12/lto-wrapper OFFLOAD_TARGET_NAMES=3Dnvptx-none:amdgcn-amdhsa OFFLOAD_TARGET_DEFAULT=3D1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Debian 12.1.0-7' --with-bugurl=3Dfile:///usr/share/doc/gcc-12/README.Bugs --enable-languages=3Dc,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=3D/usr --with-gcc-major-version-only --program-suffix=3D-12 --program-prefix=3Dx86_64-linux-gnu- --enable-shared --enable-linker-build-= id --libexecdir=3D/usr/lib --without-included-gettext --enable-threads=3Dposix --libdir=3D/usr/lib --enable-nls --enable-clocale=3Dgnu --enable-libstdcxx-= debug --enable-libstdcxx-time=3Dyes --with-default-libstdcxx-abi=3Dnew --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=3Drelea= se --with-target-system-zlib=3Dauto --enable-objc-gc=3Dauto --enable-multiarch --disable-werror --enable-cet --with-arch-32=3Di686 --with-abi=3Dm64 --with-multilib-list=3Dm32,m64,mx32 --enable-multilib --with-tune=3Dgeneric --enable-offload-targets=3Dnvptx-none=3D/build/gcc-12-aYRw0H/gcc-12-12.1.0/= debian/tmp-nvptx/usr,amdgcn-amdhsa=3D/build/gcc-12-aYRw0H/gcc-12-12.1.0/deb= ian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=3Drelease --build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linu= x-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.1.0 (Debian 12.1.0-7) COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-m32' '-shared-libgcc' '-mtune=3Dgeneric' '-march=3Di686' '-dumpdir' 'a-' /usr/lib/gcc/x86_64-linux-gnu/12/cc1plus -quiet -v -imultilib 32 -imultiar= ch i386-linux-gnu -D_GNU_SOURCE bytes.cc -quiet -dumpdir a- -dumpbase bytes.cc -dumpbase-ext .cc -m32 -mtune=3Dgeneric -march=3Di686 -O2 -version -fasynchronous-unwind-tables -o /tmp/cccQJh1u.s GNU C++17 (Debian 12.1.0-7) version 12.1.0 (x86_64-linux-gnu) compiled by GNU C version 12.1.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.25-GMP GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/i386-linux-gnu/c++/12" ignoring nonexistent directory "/usr/local/include/i386-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/include-fi= xed" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include" ignoring nonexistent directory "/usr/include/i386-linux-gnu" #include "..." search starts here: #include <...> search starts here: /usr/include/c++/12 /usr/include/x86_64-linux-gnu/c++/12/32 /usr/include/c++/12/backward /usr/lib/gcc/x86_64-linux-gnu/12/include /usr/local/include /usr/include End of search list. GNU C++17 (Debian 12.1.0-7) version 12.1.0 (x86_64-linux-gnu) compiled by GNU C version 12.1.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.25-GMP GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 Compiler executable checksum: 8a56007e6299a53b3d2bb12e46ecf480 COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-m32' '-shared-libgcc' '-mtune=3Dgeneric' '-march=3Di686' '-dumpdir' 'a-' as -v --32 -o /tmp/ccG1Wx1X.o /tmp/cccQJh1u.s GNU assembler version 2.38.90 (x86_64-linux-gnu) using BFD version (GNU Binutils for Debian) 2.38.90.20220713 COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-m32' '-shared-libgcc' '-mtune=3Dgeneric' '-march=3Di686' '-dumpdir' 'a-' /usr/lib/gcc/x86_64-linux-gnu/12/cc1plus -quiet -v -imultilib 32 -imultiar= ch i386-linux-gnu -D_GNU_SOURCE demo.cc -quiet -dumpdir a- -dumpbase demo.cc -dumpbase-ext .cc -m32 -mtune=3Dgeneric -march=3Di686 -O2 -version -fasynchronous-unwind-tables -o /tmp/cccQJh1u.s GNU C++17 (Debian 12.1.0-7) version 12.1.0 (x86_64-linux-gnu) compiled by GNU C version 12.1.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.25-GMP GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/../../../../include/i386-linux-gnu/c++/12" ignoring nonexistent directory "/usr/local/include/i386-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/include-fi= xed" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include" ignoring nonexistent directory "/usr/include/i386-linux-gnu" #include "..." search starts here: #include <...> search starts here: /usr/include/c++/12 /usr/include/x86_64-linux-gnu/c++/12/32 /usr/include/c++/12/backward /usr/lib/gcc/x86_64-linux-gnu/12/include /usr/local/include /usr/include End of search list. GNU C++17 (Debian 12.1.0-7) version 12.1.0 (x86_64-linux-gnu) compiled by GNU C version 12.1.0, GMP version 6.2.1, MPFR version 4.1.0, MPC version 1.2.1, isl version isl-0.25-GMP GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 Compiler executable checksum: 8a56007e6299a53b3d2bb12e46ecf480 COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-m32' '-shared-libgcc' '-mtune=3Dgeneric' '-march=3Di686' '-dumpdir' 'a-' as -v --32 -o /tmp/ccXuCoem.o /tmp/cccQJh1u.s GNU assembler version 2.38.90 (x86_64-linux-gnu) using BFD version (GNU Binutils for Debian) 2.38.90.20220713 COMPILER_PATH=3D/usr/lib/gcc/x86_64-linux-gnu/12/:/usr/lib/gcc/x86_64-linux= -gnu/12/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/12/:/= usr/lib/gcc/x86_64-linux-gnu/ LIBRARY_PATH=3D/usr/lib/gcc/x86_64-linux-gnu/12/32/:/usr/lib/gcc/x86_64-lin= ux-gnu/12/../../../../lib32/:/lib/../lib32/:/usr/lib/../lib32/:/usr/lib/gcc= /x86_64-linux-gnu/12/:/usr/lib/gcc/x86_64-linux-gnu/12/../../../:/lib/:/usr= /lib/ COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-m32' '-shared-libgcc' '-mtune=3Dgeneric' '-march=3Di686' '-dumpdir' 'a.' /usr/lib/gcc/x86_64-linux-gnu/12/collect2 -plugin /usr/lib/gcc/x86_64-linux-gnu/12/liblto_plugin.so -plugin-opt=3D/usr/lib/gcc/x86_64-linux-gnu/12/lto-wrapper -plugin-opt=3D-fresolution=3D/tmp/ccDtT2bM.res -plugin-opt=3D-pass-through= =3D-lgcc_s -plugin-opt=3D-pass-through=3D-lgcc -plugin-opt=3D-pass-through=3D-lc -plugin-opt=3D-pass-through=3D-lgcc_s -plugin-opt=3D-pass-through=3D-lgcc -= -build-id --eh-frame-hdr -m elf_i386 --hash-style=3Dgnu --as-needed -dynamic-linker /lib/ld-linux.so.2 -pie /usr/lib/gcc/x86_64-linux-gnu/12/../../../../lib32/Scrt1.o /usr/lib/gcc/x86_64-linux-gnu/12/../../../../lib32/crti.o /usr/lib/gcc/x86_64-linux-gnu/12/32/crtbeginS.o -L/usr/lib/gcc/x86_64-linux-gnu/12/32 -L/usr/lib/gcc/x86_64-linux-gnu/12/../../../../lib32 -L/lib/../lib32 -L/usr/lib/../lib32 -L/usr/lib/gcc/x86_64-linux-gnu/12 -L/usr/lib/gcc/x86_64-linux-gnu/12/../../.. /tmp/ccG1Wx1X.o /tmp/ccXuCoem.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/lib/gcc/x86_64-linux-gnu/12/32/crtendS.o /usr/lib/gcc/x86_64-linux-gnu/12/../../../../lib32/crtn.o COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-m32' '-shared-libgcc' '-mtune=3Dgeneric' '-march=3Di686' '-dumpdir' 'a.' zsh: IOT instruction ./a.out=