RFR: 8254744: Clean-up CodeBlob::align_code_offset

Wed Oct 14 13:24:10 UTC 2020

On Wed, 14 Oct 2020 10:45:06 GMT, Erik Österlund <eosterlund at openjdk.org> wrote:

>> - Modernize by using align_up
>> - Move definition of the trivial CodeHeap::header_size() to header to help inlining, which optimizes align_code_offset
>>   and others. No big gain, but we're calling CodeHeap::header_size() 1300+ times on Hello World, and when inlined it's
>>   just a constant fold.
>
> Looks good.

Thanks for reviewing!

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PR: https://git.openjdk.java.net/jdk/pull/651