RFR: 8304928: Optimize ClassDesc.resolveConstantDesc

Thu Mar 30 20:12:30 UTC 2023

This patch optimizes ClassDesc.resolveConstantDesc for array classes. Otherwise, the performance of reference class resolution remain unchanged. https://jmh.morethan.io/?gist=111095eecf7a735fe8c96e4b952b58c1 It also includes a benchmark for MethodTypeDesc resolution, which currently does not yet depend on class desc resolution but can be later optimized if it does switch.

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Commit messages:
 - 8304928: Optimize ClassDesc.resolveConstantDesc

Changes: https://git.openjdk.org/jdk/pull/13252/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13252&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8304928
  Stats: 269 lines in 4 files changed: 255 ins; 2 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/13252.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13252/head:pull/13252

PR: https://git.openjdk.org/jdk/pull/13252