[9] RFR(S): 8061486: [TESTBUG] compiler/whitebox/ tests fail : must be osr_compiled (reappeared in nightlies)

[Tobias Hartmann]

Hi,

please review the following patch.

Bug: https://bugs.openjdk.java.net/browse/JDK-8061486
Webrev: http://cr.openjdk.java.net/~thartmann/8061486/webrev.00/

Problem:
JDK-8060454 added a deoptimization before triggering the OSR compilation to
avoid non-OSR compilations blocking OSR compilations.
This is not sufficient because non-OSR compilations may also be triggered at
backedges while the loop is being executed (if the backedge threshold is not yet
reached but the invocation threshold is).

Solution:
Call warmup code from OSR triggering method, make sure non-OSR compilation is
triggered and wait for completion until OSR compilation is triggered.

Testing:
- Failing test on Windows and Linux
- Whitebox tests with different parameters on JPRT

Thanks,
Tobias


[1] See 'AdvancedThresholdPolicy::method_back_branch_event()':
   // Use loop event as an opportunity to also check if there's been
   // enough calls.