RFR: 8366861: Phase AFTER_LOOP_OPTS printed even though the method has no loops [v2]

[Damon Fenacci]

On Mon, 26 Jan 2026 15:32:29 GMT, Saranya Natarajan <snatarajan at openjdk.org> wrote:

>> **Issue**
>> When a test program with no loop is run with flag `-XX:PrintPhaseLevel=3,` the output prints `PHASE_AFTER_LOOP_OPTS `but does not print `PHASE_BEFORE_LOOP_OPTS`
>> 
>> **Solution** 
>> This simple fix introduces a variable  `_print_phase_loop_opts` that caches the value of `has_loops()` before loop opts pass to make sure that `PHASE_AFTER_LOOP_OPTS` gets printed every time `PHASE_BEFORE_LOOP_OPTS` is printed.
>> 
>> Before fix output
>> <img width="394" height="608" alt="image" src="https://github.com/user-attachments/assets/753001da-a020-45cc-9db1-00f9c9c79bd2" />
>> 
>> After fix output
>> <img width="394" height="608" alt="image" src="https://github.com/user-attachments/assets/cc49854f-afa1-42a9-a87c-9f763f7daeb4" />
>> 
>> 
>> **Testing** 
>>  Github Actions, Tier 1-3
>
> Saranya Natarajan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fixing comment

Marked as reviewed by dfenacci (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/29387#pullrequestreview-3709478856