On Fri, Mar 01, 2019 at 02:57:57PM +0000, Wilco Dijkstra wrote:
> > This can be done incrementally, I just have no idea what the rules
> > for thumb2 constant encoding are.
>
> This is overcomplicating something simple - adds/subs are completely
> symmetrical on all Arm targets. So for addition you simply place adds
> alternative first and then subs. For comparison/subtraction place the
As I wrote, that is what I have done, and regtest revealed two code size
regressions because of that. Is -1 vs. 1 the only case of immediate
valid for both "I" and "L" constraints where the former is longer than the
latter?
Jakub
