JDK-8298952 : All nodes should have type(n) == Value(n) after IGVN
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 21
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2022-12-16
  • Updated: 2024-07-08
  • Resolved: 2023-02-06
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JDK 21
21 b09Fixed
Related Reports
Relates :  
JDK-8335866 - C2 compilation fails with "Missed optimization opportunity in PhaseIterGVN"
Relates :  
JDK-8320909 - C2 compilation fails with "Missed optimization opportunity in PhaseIterGVN"
Relates :  
JDK-8298951 - Umbrella: improve CCP and IGVN verification
Relates :  
JDK-8318049 - C2: assert(!failure) failed: Missed optimization opportunity in PhaseIterGVN
Relates :  
JDK-8316361 - C2: assert(!failure) failed: Missed optimization opportunity in PhaseIterGVN with -XX:VerifyIterativeGVN=10
Description
Consider exceptions where that is not feasible.
Reuse/refactor code from JDK-8257197.
Comments
Changeset: 8f195ff2 Author: Emanuel Peter <epeter@openjdk.org> Date: 2023-02-06 08:45:48 +0000 URL: https://git.openjdk.org/jdk/commit/8f195ff236000d9c019f8beb2b13355083e211b5
06-02-2023
Commit 11 performance testing successful, no significat change in runtime (One might have been worried about all the small fixes changing the runtime of the product build. Of course the verification code can change the runtime, but that is not enabled in product build.)
30-01-2023
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/11775 Date: 2022-12-23 12:11:12 +0000
26-01-2023