RFR(S): 8087341: C2 doesn't optimize redundant memory operations with G1
aleksey.shipilev at oracle.com
Fri Jan 29 13:28:12 UTC 2016
On 01/28/2016 06:04 PM, Aleksey Shipilev wrote:
> On 01/28/2016 03:49 PM, Roland Westrelin wrote:
> This looks good, for most tests here:
> The generated code indeed shows commoned loads/stores with this patch,
> and some other things that can be improved in the codegen -- I'll file
> the separate issue(s) for that. I think this one is better to be renamed
> to something more specific, e.g. "Overly wide StoreLoad barrier in G1
> breaks load/store coalescing"?
Found an even more convincing example:
Happy to re-run once Roland has the patch with Vladimir's comments.
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