From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 68450385828C; Tue, 27 Sep 2022 14:18:55 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 68450385828C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1664288335; bh=dWAUQUZ3qdJMVnP3yYRj/X4RQAi09N+LF5gJTnOMfUg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=A3yAYRHeRgcDaLKa8XJdzt9ASLadgt67TA8sT8DSBNwDbEVlB2QxqxZaSyuf22iV7 0h03PxZ9HP8xudvJykgZECRUcewF94NfcOVejCb5oNK921mSHb/lCKPQ22xlAmZI5y rYrJmYW7qD6DX7/IpwbqcxPhrh5FsEZbAr/IKxag= From: "malat at debian dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/106322] [12 Regression] tree-vectorize: Wrong code at O2 level (-fno-tree-vectorize is working) since r12-2404-ga1d27560770818c5 Date: Tue, 27 Sep 2022 14:18:54 +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: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: malat at debian dot org X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: linkw at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.3 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106322 --- Comment #52 from Mathieu Malaterre --- For comparison, gcc-snapshot taken from trunk is working as expected: * https://packages.qa.debian.org/g/gcc-snapshot/news/20220920T113715Z.html % /usr/lib/gcc-snapshot/bin/cc -v -O2 -mtune=3Dgeneric -march=3Di686 106322= .c && ./a.out && echo "success" Using built-in specs. COLLECT_GCC=3D/usr/lib/gcc-snapshot/bin/cc COLLECT_LTO_WRAPPER=3D/usr/lib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/l= to-wrapper Target: i686-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Debian 20220920-1' --with-bugurl=3Dfile:///usr/share/doc/gcc-snapshot/README.Bugs --enable-languages=3Dc,ada,c++,go,d,fortran,objc,obj-c++ --prefix=3D/usr/lib/gcc-snapshot --with-gcc-major-version-only --program-pr= efix=3D --enable-shared --enable-linker-build-id --disable-nls --enable-clocale=3Dg= nu --enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --with-default-libstdcxx-abi=3Dnew --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --with-system-zlib --enable-libphobos-checking=3Drelease --with-target-system-zlib=3Dauto --enable-objc-gc=3Dauto --enable-targets=3Dall --enable-multiarch --disable= -werror --with-arch-32=3Di686 --with-multilib-list=3Dm32,m64,mx32 --enable-multilib --with-tune=3Dgeneric --enable-checking=3Dyes --build=3Di686-linux-gnu --host=3Di686-linux-gnu --target=3Di686-linux-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 13.0.0 20220920 (experimental) [master r13-2730-gd0c73b6c856] (Debian 20220920-1) COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-mtune=3Dgeneric' '-march=3Di686' '-dumpd= ir' 'a-' /usr/lib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/cc1 -quiet -v -imultia= rch i386-linux-gnu 106322.c -quiet -dumpdir a- -dumpbase 106322.c -dumpbase-ext= .c -mtune=3Dgeneric -march=3Di686 -O2 -version -o /tmp/ccUhEkRq.s GNU C17 (Debian 20220920-1) version 13.0.0 20220920 (experimental) [master r13-2730-gd0c73b6c856] (i686-linux-gnu) compiled by GNU C version 13.0.0 20220920 (experimental) [master r13-2730-gd0c73b6c856], 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=3D30 --param ggc-min-heapsize=3D4096 ignoring nonexistent directory "/usr/local/include/i386-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/include-fixed" ignoring nonexistent directory "/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/../../../../i686-linux-gnu= /include" #include "..." search starts here: #include <...> search starts here: /usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/include /usr/local/include /usr/lib/gcc-snapshot/include /usr/include/i386-linux-gnu /usr/include End of search list. GNU C17 (Debian 20220920-1) version 13.0.0 20220920 (experimental) [master r13-2730-gd0c73b6c856] (i686-linux-gnu) compiled by GNU C version 13.0.0 20220920 (experimental) [master r13-2730-gd0c73b6c856], 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=3D30 --param ggc-min-heapsize=3D4096 Compiler executable checksum: ac95e449fd0e2a349cb0956fc7734c9a COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-mtune=3Dgeneric' '-march=3Di686' '-dumpd= ir' 'a-' as -v --32 -o /tmp/ccNPHzVO.o /tmp/ccUhEkRq.s GNU assembler version 2.39 (i686-linux-gnu) using BFD version (GNU Binutils= for Debian) 2.39 COMPILER_PATH=3D/usr/lib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/:/usr/l= ib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/:/usr/lib/gcc-snapshot/libexe= c/gcc/i686-linux-gnu/:/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/:/usr= /lib/gcc-snapshot/lib/gcc/i686-linux-gnu/ LIBRARY_PATH=3D/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/:/usr/lib/gc= c-snapshot/lib/gcc/i686-linux-gnu/13/../../../../lib/:/lib/i386-linux-gnu/:= /lib/../lib/:/usr/lib/i386-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc-snapsho= t/lib/gcc/i686-linux-gnu/13/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-mtune=3Dgeneric' '-march=3Di686' '-dumpd= ir' 'a.' /usr/lib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/collect2 -plugin /usr/lib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/liblto_plugin.so -plugin-opt=3D/usr/lib/gcc-snapshot/libexec/gcc/i686-linux-gnu/13/lto-wrapp= er -plugin-opt=3D-fresolution=3D/tmp/ccYP5awc.res -plugin-opt=3D-pass-through= =3D-lgcc -plugin-opt=3D-pass-through=3D-lgcc_s -plugin-opt=3D-pass-through=3D-lc -plugin-opt=3D-pass-through=3D-lgcc -plugin-opt=3D-pass-through=3D-lgcc_s -= -build-id --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /lib/i386-linux-gnu/crt1.o /lib/i386-linux-gnu/crti.o /usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/crtbegin.o -L/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13 -L/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/../../../../lib -L/lib/i386-linux-gnu -L/lib/../lib -L/usr/lib/i386-linux-gnu -L/usr/lib/..= /lib -L/usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/../../.. /tmp/ccNPHzVO.o -lgcc --push-state --as-needed -lgcc_s --pop-state -lc -lgcc --push-state --as-needed -lgcc_s --pop-state /usr/lib/gcc-snapshot/lib/gcc/i686-linux-gnu/13/crtend.o /lib/i386-linux-gnu/crtn.o COLLECT_GCC_OPTIONS=3D'-v' '-O2' '-mtune=3Dgeneric' '-march=3Di686' '-dumpd= ir' 'a.' success=