Hi Richard,

在 2024/6/20 16:05, Richard Sandiford 写道:
> I'm not sure "profitability" means much in the case of debug insns.
> There again, I suppose having no limit on the complexity of debug
> insns would risk quadraticness and (even without that) would tend
> to increase the size of the on-disk debug info.
> 
> So I agree that the change is correct and that we should continue
> to disallow debug insns here.

Your guess is correct.
Actually I found very complex debug insns in dump of fwprop pass if
gcc doesn't check profitability for debug insns. The compiling of
"md5.c" or "sha1.c" can't complete within one night. So I think we
should check profitability for debug insns also.

I will fix the formatting and submit the patch. Thanks again for your
review comments.

Thanks
Gui Haochen

Reply via email to