[Bug target/119477] RISC-V: -fno-tree-vectorize -fno-tree-loop-vectorize -fno-tree-slp-vectorize can't turn off auto-vectorization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119477

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Especially since mem* and str* builtins can expand to using the vector
registers. And even stuff like:
int a[1024] = {};

will expand into a memset which expands to using the vector registers.  This is
true on most targets which has a vector registers and is unrelated to the
vectorizer.