RFR(S): 6394013: C2: Remove VerifyOpto
christian.hagedorn at oracle.com
Fri Aug 2 07:06:27 UTC 2019
Thank you Vladimir. I created a new RFE .
On 31.07.19 19:00, Vladimir Kozlov wrote:
>> On Jul 31, 2019, at 12:27 AM, Christian Hagedorn <christian.hagedorn at oracle.com> wrote:
>> Hi Vladimir
>> Thanks for taking a look at it and pointing that out. I just thought this line was there due to the VerifyOpto flag. But in that case I rather undo the change and keep the code there as before and change the comment. I updated the webrev:
>> Should I file a new RFE for investigating the effect of removing that line?
> Yes please.
>> Best regards,
>>> On 29.07.19 18:39, Vladimir Kozlov wrote:
>>> Hi Christian
>>> I am not sure about removing code in loopopts.cpp. Yes, comment have to be adjusted but we need investigate more how removing this code can affect optimization.
>>> The issue here is not false-positive report from VerifyOpto but that optimization could be undone.
>>> We do run _igvn.optimize() at the end of each loop opts iteration.
>>>> On 7/29/19 6:18 AM, Christian Hagedorn wrote:
>>>> Please review the following enhancement:
>>>> This kills the VerifyOpto flag.
>>>> Best regards,
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