On Sun, Mar 29, 2020 at 11:00 PM Florian Klämpfl <flor...@freepascal.org> wrote:
> Am 29.03.20 um 22:46 schrieb Christo Crause via fpc-devel: > > It seems that a different instruction sequence should be used for sign > > extension for the lx106 subarch. > > Ok, I see. Let me first integrate everything done so far in trunk, then > we can continue with the details :) > I've noticed GCC uses the SLLI + SRAI instructions to perform sign extension on ESP8266. Since different CPUs can support different subsets of the Xtensa instructions do you think a finalizecode type function can be used as a post code generation step to map unsupported instructions to alternative sequences?
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