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Re: [PATCH 4/8] Disable max_issue when scheduling for register pressure


On 10/20/2014 11:21 PM, Maxim Kuvyrkov wrote:
> Hi,
>
> This patch disables max_issue-based lookahead multipass scheduling when register-pressure heuristics are active.  The two approaches tend to undo each others decisions and don't play well together.
Yes, I am agree.
> Currently this patch is a no-op, since no target uses both max_issue and register-pressure scheduling.  This will change soon with upcoming patches that will enable max_issue during 2nd scheduling pass for ARM and AArch64.
>
> Bootstrapped on x86_64-linux-gnu.  Regression testing is in progress.  OK to commit if no regressions?
>
The patch is ok.  Thanks, Maxim.


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