RFR: 8248188: Add IntrinsicCandidate and API for Base64 decoding [v7]

[Vladimir Kozlov]

On Wed, 21 Oct 2020 16:28:21 GMT, CoreyAshford <github.com+51754783+CoreyAshford at openjdk.org> wrote:

>> Buried in that GitHub test run link are the results for
>> windows-x64-debug_testlogs_hs_tier1_compiler
>> which includes this file (test-summary.txt):
>> 
>> ==============================
>> Test summary
>> ==============================
>>    TEST                                              TOTAL  PASS  FAIL ERROR   
>>>> jtreg:test/hotspot/jtreg:tier1_compiler             742   683    59     0 <<
>> ==============================
>> TEST FAILURE
>> I poked around, but I don't see any logs for the individual
>> test failures.
>
>> Buried in that GitHub test run link are the results for
>> windows-x64-debug_testlogs_hs_tier1_compiler
>> which includes this file (test-summary.txt):
>> 
>> ```
>> ==============================
>> Test summary
>> ==============================
>>    TEST                                              TOTAL  PASS  FAIL ERROR   
>> >> jtreg:test/hotspot/jtreg:tier1_compiler             742   683    59     0 <<
>> ==============================
>> TEST FAILURE
>> ```
>> 
>> I poked around, but I don't see any logs for the individual
>> test failures.
> 
> In a browser at the provide test link, on the upper right in the "three-dot menu", there's an option to download the logs.  The only file containing failures is `6_Windows x64 (hstier1 compiler).txt`. There are quite a few exception backtraces in this log file, but they all look similar, saying:
> TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.NullPointerException: Cannot invoke "java.lang.Throwable.getCause()" because "<local1>" is null
> There's only one that's slightly different:
> TEST RESULT: Failed. Execution failed: `main' threw exception: java.lang.Error: Can't get full path name for '.', got exception java.lang.NullPointerException: Cannot invoke "java.lang.Throwable.getCause()" because "<local1>" is null

> I will push the code, but I haven't been successful in running the test (see [#293 (comment)](https://github.com/openjdk/jdk/pull/293#issuecomment-713223068) )

I submitted our testing and let you know results. I used your latest '06: Full' changes.
It should run CheckGraalIntrinsics.java with pushed 8254785 fix which enable it again.

-------------

PR: https://git.openjdk.java.net/jdk/pull/293