JDK-8371537 : Enable more testing with ShortRunningLongLoop/StressShortRunningLongLoop
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 26
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-11-10
  • Updated: 2025-11-10
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
Other
tbdUnresolved
Related Reports
Relates :  
JDK-8342692 - C2: long counted loop/long range checks: don't create loop-nest for short running loops
Sub Tasks
JDK-8371540 :  
Add ShortRunningLongLoop to the IR framework whitelist - Open
Description
We should enable more testing with StressShortRunningLongLoop and disabling ShortRunningLongLoop. This is especially important for vectorization tests. In a next step, we should whitelist ShortRunningLongLoop for the IR framework such that vectorization tests are automatically IR matched even when we disable the flag. This is a trade-off between the benefit of that and users doing some loop counting in their IR rules that now need to be ware of handling ShortRunningLongLoop=false. I think that is acceptable and we anticipate only very few issues with our current tests.

This is an umbrella RFE for the three different tasks:
- Updating CI stress jobs
- Updating fuzzer configs
- Update IR framework whitelist