git: openjdk/jdk21u-dev: master: 8354145: G1: UseCompressedOops boundary is calculated on maximum heap region size instead of maxiumum ergonomic heap region size

[Paul Hohensee]

Changeset: 7c993206
Branch: master
Author:    Daniel Hu <costmuch at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2025-12-12 17:54:17 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/7c99320610f4a743c3cf94be6ebc3685a2612241

8354145: G1: UseCompressedOops boundary is calculated on maximum heap region size instead of maxiumum ergonomic heap region size

Reviewed-by: phh
Backport-of: 526951dba731f0e733e22a3bff7ac7a18ce9dece

! src/hotspot/share/gc/g1/g1Arguments.cpp
! src/hotspot/share/gc/g1/heapRegion.cpp
! src/hotspot/share/gc/g1/heapRegion.hpp
+ test/hotspot/jtreg/gc/arguments/TestG1CompressedOops.java