[Bug tree-optimization/104582] [11/12 Regression] Unoptimal code for __negdi2 (and others) from libgcc2 due to unwanted vectorization

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104582

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
True.
So another option is to try to undo some of those short vectorization cases
during isel, expansion or later, though e.g. for the negdi2 case it will go
already during expansion into memory.