RFR: 8254602: compiler/debug/TestStressCM.java failed with "RuntimeException: got the same optimization stats for different seeds: expected 45"

[Roberto Castañeda Lozano]

On Tue, 13 Oct 2020 08:24:34 GMT, Roberto Castañeda Lozano <github.com+8792647+robcasloz at openjdk.org> wrote:

>> Remove test assertion checking that different random seeds lead to different code motion decisions. This was the case
>> for the specific pair of random seeds, IR fed to code motion, and target platforms tested originally; but does not need
>> to hold in general. Remove similar test assertion in IGVN randomization test case. Re-enable the test case.
>
> Remove test assertion checking that different random seeds lead to different
> code motion decisions. This was the case for the specific pair of random seeds,
> IR fed to code motion, and target platforms tested originally; but does not need
> to hold in general. Remove similar test assertion in IGVN randomization test
> case. Re-enable the test case.

The fixed test cases pass on windows-x64, linux-x64, macosx-x64, and linux-aarch64 (all in both release and debug).

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PR: https://git.openjdk.java.net/jdk/pull/626