On 04/29/2016 07:32 AM, Bernd Schmidt wrote:
On 04/29/2016 03:02 PM, David Edelsohn wrote:
How has this show general benefit for all architectures to deserve
enabling it by default at -O2?
It should improve postreload scheduling in general, and it can also help
clear up bad code generation left behind by register allocation.
Right. ISTM the round-robin renaming reduces the false dependencies
that are inherently created by register allocation.
It should benefit any architecture that utilizes post-reload scheduling.
jeff
