RFR: 8256267: Relax compiler/floatingpoint/NaNTest.java for x86_32 and lower -XX:+UseSSE [v3]

[Aleksey Shipilev]

On Tue, 24 Nov 2020 17:33:35 GMT, Igor Ignatyev <iignatyev at openjdk.org> wrote:

> if `expectStableFloats` is false, we basically don't do any testing, so I'd prefer us to throw `SkippedException` to have more realistic test results. and for a case `expectStableFloats` being false, it would be nice to at least print a message saying we didn't do that part.

Well, my previous version used to print out the results even when skipped. `expectStableDoubles` implies `expectStableFloats` due to implementation specifics, so we better not rely on that. See new patch: prints messages when skipping either test, and throws `SkippedException` if no test cases were run.

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PR: https://git.openjdk.java.net/jdk/pull/1187