Re: [Sbcl-devel] question about compiler internals

[Nathan F. <fr...@gm...>]

On Wed, Nov 19, 2008 at 5:06 PM, Nathan Froyd <fr...@gm...> wrote:
> What you want to do is certainly desirable, but it's not going to be
> done by twiddling with the descriptions of the VOPs.

I should have been more precise: folding the array accesses into
subsequent operations can't be done by twiddling with VOPs.  Folding
things like:

  movsd xmm0, [rbp-64]
  addsd xmm1, xmm0

into:

  addsd xmm1, [rbp-64]

should still be doable by twiddling with VOPs, though.

-Nathan