Public bug reported: This bug-report is to request patching of the GCC bug 118976 in the Ubuntu gcc packages to avoid correctness issues, especially in 24.04 and 22.04 LTS releases.
This issue effects SVE vectorization which involves bitwise-not during optimization on arm64 platforms. It was reported and fixed in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118976. For gcc 8-11 there will be no minor releases as they are EOL from GCC team. For gcc 11 through trunk the fix will be included in the next minor version, but my understanding is that Ubuntu LTS releases are unlikely to upgrade minor versions. ** Affects: gcc Importance: Unknown Status: Unknown ** Affects: gcc-10 (Ubuntu) Importance: Undecided Status: New ** Affects: gcc-11 (Ubuntu) Importance: Undecided Status: New ** Affects: gcc-8 (Ubuntu) Importance: Undecided Status: New ** Affects: gcc-9 (Ubuntu) Importance: Undecided Status: New ** Bug watch added: GCC Bugzilla #118976 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118976 ** Also affects: gcc via https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118976 Importance: Unknown Status: Unknown ** Also affects: gcc-9 (Ubuntu) Importance: Undecided Status: New ** Also affects: gcc-10 (Ubuntu) Importance: Undecided Status: New ** Also affects: gcc-11 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2101084 Title: GCC produces wrong code for arm64+sve in some cases To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/2101084/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
