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Re: IRA patch: move clobbers downwards


Bernd Schmidt wrote:
On 07/13/2010 06:19 PM, Jeff Law wrote:



Possibly something I have to do anyway for some of the PRs on my list.

I haven't tried if -fsched-pressure fixes this, but it seemed to help
with some other issues I've seen recently.  Can we make this the default?

As I remember there were some issues for -fsched-pressure on powerpc. I proposed to decide to make it default for specific targets to target maintainers. -fsched-presurre could slow down the compiler a lot (like 1-2%).

So I can not say that we should make it default for -O2 or -O3 without extensive benchmarking a lot of targets. But I have no time or resources for this.


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