RFR: 8323582: C2 SuperWord AlignVector: misaligned vector memory access with unaligned native memory [v2]

[Emanuel Peter]

On Wed, 19 Feb 2025 13:15:46 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> > That is what I'm avoiding by `stalling` the slow-loop ;) I only `un-stall` the slow-loop if a we actually add a check to the multiversion-if, and at that point we do care about the slow-loop.
> 
> So if the slow loop is kept, it's fully optimized (other than what misaligned accesses prevent)?

Exactly. In a sense that would give you similar results as with unswitching, where we also possibly optimize both branches / loops.

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PR Comment: https://git.openjdk.org/jdk/pull/22016#issuecomment-2668632094