JDK-8261153 : add a regression test for 8254104.
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 16,17,18,19
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2021-02-04
  • Updated: 2022-06-29
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8260608 - add a regression test for 8260370
Relates :  
JDK-8254104 - MethodCounters must exist before nmethod is installed
Description
Graalunit tests are not run on a regular basis against Open JDK, so we've lost the possibility to test OSR methods compiled by JVMCI compilers. We need to write a jtreg test about that.

A quick scenario: 

1. JVMCI compiler is forced to compile some OSR code;
2. installs it (not creating MethodCounters);
3. Then the enclosing method got executed by the test;
4. C2 detects a backedge in the OSR loop;
5. Test must verify that the runtime to the compiled OSR version of the code that had been installed in #2.
Comments
Deferring to JDK 19 because JDK 18 is now in the RC phase (https://openjdk.java.net/jeps/3#rc).
11-02-2022