On 12/28/2018 11:13 AM, Peter Bergner wrote:
On 12/21/18 9:24 AM, Vladimir Makarov wrote:
Peter, also if you are interesting to do RA work, there is another problem
which is to implement sub-register level conflict calculations in LRA.
Currently, IRA has a simple subregister level conflict calculation (see
allocno objects) and in a case of sub-register presence IRA and LRA decisions
are different and this results in worse code generations (there are some PRs
for this). It would be also a big RA project to do.
Can you point me to the PRs? Thanks.
Peter, sorry for the answer delay. I am still on vacation.
Here is a recent PR I remember:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84757
