https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114485
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |12.3.0 Target Milestone|--- |13.3 Last reconfirmed| |2024-03-26 Blocks| |53947 Status|UNCONFIRMED |NEW Known to fail| |13.1.0 Summary|[14] Wrong code with -O3 |[13/14 Regression] Wrong |-march=rv64gcv on riscv |code with -O3 | |-march=rv64gcv on riscv or | |`-O3 -march=armv9-a` for | |aarch64 Ever confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed. Yes it does look very similar if not the same. This one does not even need -fno-vect-cost-model nor -fwrapv for aarch64 even. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 [Bug 53947] [meta-bug] vectorizer missed-optimizations