[Bug tree-optimization/120687] RISC-V: very poor vector code gen for LMbench bw_mem test case

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120687

Richard Biener <rguenth at gcc dot gnu.org> changed:

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--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 62610
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62610&action=edit
patch

I am testing this adjustment to permute optimization.  I wonder how to
generally evaluate changes there.