This patch seems to break one of my longer fragment programs. I believe this is
because it's running out of registers, but I haven't looked into it in detail
yet.

I think this patch should be committed, but directly followed by a patch to
reduce the number of registers used.


On 3/18/07, Nicolai Haehnle <[EMAIL PROTECTED]> wrote:
> There were a number of bugs related to the pairing of vector and
> scalar operations where swizzles ended up using the wrong source
> register, or an instruction was moved forward and ended up overwriting
> an aliased register.
>
> The new algorithm for register allocation is slightly conservative and
> may run out of registers before it's strictly necessary. On the plus
> side, it Just Works.
>
> Pairing of instructions is done whenever possible, and in more cases
> than before, so in practice this change should be a net win.
>
> The patch mostly fixes glean/texCombine. One remaining problem is that
> the code duplicates constants and parameters all over the place and
> therefore quickly runs out of resources and falls back to software.
> I'm going to look into that as well.
>
> Please test and commit this patch. If you notice any regressions,
> please tell me (but the tests are looking good).
>
> ~Nicolai
>

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