RFR (M) : 8028587 : [TESTBUG] New tests development for intrisics for basic operators - add, neg, inc, dec, sub, mul

[Anton Ivanov]

Hi all,

Please review the patch

New tests for intrinsics were developed. It tests that intrinsics are 
used where it should, and vice versa.
Base class CompilerWhiteBoxTest was refactored.
DecrementExactLongTest.java and IncrementExactLongTest.java fails on 
amd64 platform. I suppose a product bug (no intrinsic are used where it 
should be), please check

webrev: 
http://cr.openjdk.java.net/~iignatyev/aaivanov/8028587/webrev.00/ 
<http://cr.openjdk.java.net/%7Eiignatyev/aaivanov/8028587/webrev.00/>
jbs: https://bugs.openjdk.java.net/browse/JDK-8028587
testing: test/compiler/tiered/, test/compiler/whitebox/, 
test/compiler/intrinsics/mathexact/sanity/

-- Best regards, Anton Ivanov