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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 19
Affects Version/s: 18
Component/s: hotspot
Labels:
- c2

Subcomponent:
compiler
Resolved In Build:
b22

This is a follow up to ~~JDK-8266550~~. This is refactoring in an attempt to fix ~~JDK-6312651~~. This is extracted from: https://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2019-May/033803.html

The goal of this one is to prevent code outside of the Type hierarchy from using the klass() accessor as once interfaces are properly supported a single klass pointer can't exhaustively represent a type.

relates to

JDK-8310299 C2: 8275201 broke constant folding of array store check in some cases

Resolved

JDK-8289161 Regressions 2-3% on some Renaissance after 8275201

Closed

JDK-8266550 C2: mirror TypeOopPtr/TypeInstPtr/TypeAryPtr with TypeKlassPtr/TypeInstKlassPtr/TypeAryKlassPtr

Resolved

JDK-6312651 Compiler should only use verified interface types for optimization

Closed

JDK-8287700 C2 Crash running eclipse benchmark from Dacapo

Closed

JDK-8288968 C2: remove use of covariant returns in type.[ch]pp

Closed

links to

Commit openjdk/jdk/aa7ccdf4

Review openjdk/jdk/6717

(1 relates to, 2 links to)

Assignee:: Roland Westrelin

Reporter:: Roland Westrelin

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Created:: 2021-10-13 00:34

Updated:: 2023-06-19 01:41

Resolved:: 2022-05-11 00:28

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