[jdk17u-dev] RFR: 8357793: [PPC64] VM crashes with -XX:-UseSIGTRAP -XX:-ImplicitNullChecks

Thu Jun 5 12:49:40 UTC 2025

Backport of [JDK-8357793](https://bugs.openjdk.org/browse/JDK-8357793). Version from jdk21u-dev applies cleanly, but `InterpreterMacroAssembler::load_klass_check_null_throw` didn't exist in 17u. I've taken the PPC64 interpreter parts from https://github.com/openjdk/jdk/commit/7cf7e0a20b37522b0c7a97e5269bcd2eed174dbe.

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Commit messages:
 - Backport fef4c29e5a296c0c689abb25183c243326607614

Changes: https://git.openjdk.org/jdk17u-dev/pull/3619/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3619&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357793
  Stats: 14 lines in 4 files changed: 8 ins; 2 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3619.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3619/head:pull/3619

PR: https://git.openjdk.org/jdk17u-dev/pull/3619