RFR: 8282355: compiler/arguments/TestCodeEntryAlignment.java failed "guarantee(sect->end() <= tend) failed: sanity" [v2]

[Dean Long]

On Mon, 14 Mar 2022 00:15:20 GMT, Jie Fu <jiefu at openjdk.org> wrote:

>> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   improvement based on review
>
> src/hotspot/share/runtime/stubRoutines.cpp line 219:
> 
>> 217:     TraceTime timer("StubRoutines generation 1", TRACETIME_LOG(Info, startuptime));
>> 218:     // Add extra space for large CodeEntryAlignment
>> 219:     int max_stubs = 10;
> 
> Thanks for your update.
> 
> There are about 30 stubs (max number of stubs) to be generated in `generate_initial()` for x86_64.
> Why not `max_stubs = 30` ?

I instrumented the align() call in my private build to count how many used align(CodeEntryAlignment), and I counted only 7, then I rounded up to 10.  Maybe I should change the name to max_aligned_stubs to make it more clear?

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PR: https://git.openjdk.java.net/jdk/pull/7800