[jdk17u-dev] RFR: 8317507: C2 compilation fails with "Exceeded _node_regs array"

Tue Dec 12 10:24:57 UTC 2023

Clean backport to fix the C2 corner case.

Additional testing:
 - [x] New regression test fails without the fix, passes with it
 - [x] Linux x86_64 server fastdebug,`tier{1,2,3,4}`
 - [x] Linux AArch64 server fastdebug,`tier{1,2,3}`

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Commit messages:
 - Backport a5818972c16bd883d768ff2fb23a8aa9e0142c65

Changes: https://git.openjdk.org/jdk17u-dev/pull/2039/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2039&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317507
  Stats: 602 lines in 2 files changed: 602 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2039.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2039/head:pull/2039

PR: https://git.openjdk.org/jdk17u-dev/pull/2039