[Bug tree-optimization/98563] [10/11 Regression] vectorization fails while it worked on gcc 9 and earlier

[nathanael.schaeffer at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98563

--- Comment #3 from N Schaeffer <nathanael.schaeffer at gmail dot com> ---
I'd like to add that when you say "vectorization of the basic block", the code
generated is actually worse than non-vectorized naive code: it handles all
loads and arithmetic operations in scalar mode (v*sd instructions) and packs
two values into xmm before storing...