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From: "zhendong.su at inf dot ethz.ch" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/107195] New: wrong code with "-O1 -fno-tree-ccp" on x86_64-linux-gnu Date: Sun, 09 Oct 2022 13:01:53 +0000 [thread overview] Message-ID: <bug-107195-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107195 Bug ID: 107195 Summary: wrong code with "-O1 -fno-tree-ccp" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zhendong.su at inf dot ethz.ch Target Milestone: --- This doesn't fail with 12.2, so looks like a recent regression. Perhaps related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107172 or https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107194? Compiler Explorer: https://godbolt.org/z/94E6r84ra [524] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc-trunk/configure --disable-bootstrap --enable-checking=yes --prefix=/local/suz-local/software/local/gcc-trunk --enable-sanitizers --enable-languages=c,c++ --disable-werror --enable-multilib --with-system-zlib Thread model: posix Supported LTO compression algorithms: zlib gcc version 13.0.0 20221009 (experimental) [master r13-3180-ge95e91eccd0] (GCC) [525] % [525] % gcctk -O1 small.c; ./a.out [526] % [526] % gcctk -O1 -fno-tree-ccp small.c [527] % ./a.out Aborted [528] % [528] % cat small.c int a, b; int main() { int c = 0; if (a) c = 1; c = 1 & (a && c) && b; if (a) { b = c; __builtin_abort (); } return 0; }
next reply other threads:[~2022-10-09 13:01 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-09 13:01 zhendong.su at inf dot ethz.ch [this message] 2022-10-09 18:59 ` [Bug tree-optimization/107195] " pinskia at gcc dot gnu.org 2022-10-09 18:59 ` [Bug tree-optimization/107195] [13 Regression] " pinskia at gcc dot gnu.org 2022-10-09 19:01 ` pinskia at gcc dot gnu.org 2022-10-10 7:24 ` rguenth at gcc dot gnu.org 2022-10-10 13:23 ` [Bug tree-optimization/107195] [13 Regression] wrong code with "-O1 -fno-tree-ccp" on x86_64-linux-gnu since r13-3090-gdf4c584c567263fd marxin at gcc dot gnu.org 2022-10-10 18:49 ` aldyh at gcc dot gnu.org 2022-10-10 18:52 ` aldyh at gcc dot gnu.org 2022-10-10 18:53 ` aldyh at gcc dot gnu.org 2022-10-11 8:31 ` cvs-commit at gcc dot gnu.org 2022-10-11 9:02 ` aldyh at gcc dot gnu.org 2022-10-12 7:48 ` marxin at gcc dot gnu.org 2022-10-21 9:29 ` cvs-commit at gcc dot gnu.org 2022-10-21 9:29 ` cvs-commit at gcc dot gnu.org
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