[PATCH] reload: Try alternative with swapped operands before going to the next
Eric Botcazou
ebotcazou@adacore.com
Thu Nov 17 19:33:00 GMT 2011
> I understand your concern and the patch indeed will have an impact on the
> generated code of probably several back-ends. But with entering stage 3 the
> backend maintainers anyway are supposed to have a closer look at
> regressions.
Yes, that's why risking to introduce more of them isn't the best thing to do at
this stage. IMO this is too late in the 4.7 cycle.
> In my opinion the patch makes reload behave more like everybody expects it to
> behave and at least for s390 I can say that we have several patterns which
> have been written with that expectation. With the patch GCC generates better
> code for S/390 so I would like to see this patch applied.
That isn't compelling enough I think, given the timing.
--
Eric Botcazou
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