https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114109
Richard Biener changed:
What|Removed |Added
Blocks||53947
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114109
--- Comment #4 from Robin Dapp ---
Yes, as mentioned, vectorization of the first loop is debatable.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114109
--- Comment #3 from JuzheZhong ---
(In reply to Robin Dapp from comment #2)
> It is vectorized with a higher zvl, e.g. zvl512b, refer
> https://godbolt.org/z/vbfjYn5Kd.
OK. I see. But Clang generates many slide instruction which are expensive
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114109
--- Comment #2 from Robin Dapp ---
It is vectorized with a higher zvl, e.g. zvl512b, refer
https://godbolt.org/z/vbfjYn5Kd.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114109
--- Comment #1 from JuzheZhong ---
It seems RISC-V Clang didn't vectorize it ?
https://godbolt.org/z/G4han6vM3
