git: openjdk/jdk-sandbox: shen-late-barriers: 4 new changesets

[duke]

Changeset: 11099263
Branch: shen-late-barriers
Author:    Cesar Soares <dcsl at amazon.com>
Date:      2025-12-18 00:52:57 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/1109926391d319eb172d5d06c2aa2b8be9f47b2f

Merge remote-tracking branch 'origin/master' into shen-late-barriers

! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/loopTransform.cpp
! src/hotspot/share/opto/loopnode.cpp
! src/hotspot/share/opto/macro.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/loopTransform.cpp
! src/hotspot/share/opto/loopnode.cpp
! src/hotspot/share/opto/macro.cpp
! src/hotspot/share/opto/memnode.cpp

Changeset: 867365b8
Branch: shen-late-barriers
Author:    Cesar Soares <dcsl at amazon.com>
Date:      2025-12-19 04:54:28 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/867365b83c91d6b90337d689db2609ae5e9d5c40

Revert "8373100: Genshen: Control thread can miss allocation failure notification"

This reverts commit ea6493c4e1de2bc9615beee389b2d335669dc542.

! src/hotspot/share/gc/shenandoah/shenandoahGenerationalControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahGenerationalControlThread.hpp

Changeset: b20d998d
Branch: shen-late-barriers
Author:    Cesar Soares <dcsl at amazon.com>
Date:      2026-01-20 22:50:58 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/b20d998d8658f8aa8353c3deba45a19bfe2ff164

refactor around load of gc state & decode of narrows

! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoah_aarch64.ad
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.hpp
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/IntenseLoadRefs.java

Changeset: 90246bbe
Branch: shen-late-barriers
Author:    Cesar Soares <dcsl at amazon.com>
Date:      2026-01-20 22:51:35 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/90246bbe79e53435252cd40b48e925a50e4d1b5f

Merge remote-tracking branch 'refs/remotes/origin/shen-late-barriers' into shen-late-barriers