Re: [PATCH GCC8][01/33]Handle TRUNCATE between tieable modes in rtx_cost

[Jeff Law]

On 04/18/2017 04:37 AM, Bin Cheng wrote:
Is it OK?
Thanks,
bin

2017-04-11  Bin Cheng  <bin.ch...@arm.com>

        * rtlanal.c (rtx_cost): Handle TRUNCATE between tieable modes.
This is fine.  You might consider adding tests for this kind of change, 
but I also realize they could end up being pretty fragile.  Hmm, maybe 
they would be better as unit tests of rtx_cost?

jeff