RFR: 8286104: use aggressive liveness for unstable_if traps [v12]

[Xin Liu]

On Mon, 20 Jun 2022 07:29:27 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Xin Liu has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   monior change for code style.
>
> src/hotspot/share/opto/parse.hpp line 607:
> 
>> 605: 
>> 606: // Specialized uncommon_trap of unstable_if, we have 2 optimizations for them:
>> 607: //   1. suppress trivial Unstable_If traps
> 
> Where is this done?

I have another patch based on this one.  I will post it soon.

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PR: https://git.openjdk.org/jdk/pull/8545