RFR: 8303604: Passing by-value structs whose size is not power of 2 doesn't work on all platforms (mainline)

Fri Mar 3 23:53:24 UTC 2023

Port of: https://github.com/openjdk/panama-foreign/pull/806 which fixes an issue with passing structs whose size is not a power of two on SysV and AArch64 platforms.

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Depends on: https://git.openjdk.org/jdk/pull/12856

Commit messages:
 - 8303017: Passing by-value structs whose size is not power of 2 doesn't work on all platforms

Changes: https://git.openjdk.org/jdk/pull/12863/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12863&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303604
  Stats: 705 lines in 11 files changed: 652 ins; 2 del; 51 mod
  Patch: https://git.openjdk.org/jdk/pull/12863.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12863/head:pull/12863

PR: https://git.openjdk.org/jdk/pull/12863