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[LLVMdev] Register pressure mechanism in PRE or Smarter rematerialization/split/spiller/coalescing ?
2015 Jul 15
4
[LLVMdev] Register pressure mechanism in PRE or Smarter rematerialization/split/spiller/coalescing ?
On Wed, Jul 15, 2015 at 1:10 PM, Daniel Berlin <dberlin at dberlin.org> wrote:
> IMHO, This doesn't make a lot of sense to turn off this part on it's own.
> I would just use the enable-pre flag to turn off scalar PRE, as it
> will cause the same issue in other cases as well.
> Is there some reason you aren't just doing that?
> I suspect if this is a performance
[LLVMdev] Register pressure mechanism in PRE or Smarter rematerialization/split/spiller/coalescing ?
2015 Jul 17
2
[LLVMdev] Register pressure mechanism in PRE or Smarter rematerialization/split/spiller/coalescing ?
...d pre.
Since the patch you reverted touched only scalar pre, disabling scalar
pre should *also* do the same thing.
On Thu, Jul 16, 2015 at 5:43 PM, Lawrence <lawrence at codeaurora.org> wrote:
> Hi, Daniel:
>
> Something interesting, even though your patch performed better for our precheckin perf run, it doesn't help the test I was looking at, for my case, revert your patch give the best results.
>
> I will revert internally for now, and looking for better solution in the future.
>
> Regards
>
> Lawrence Hu
>
>
> -----Original Message-----
> From: Law...