git: openjdk/jdk: jdk25: 8364409: [BACKOUT] Consolidate Identity of self-inverse operations

[Manuel Hässig]

Changeset: 24936b92
Branch: jdk25
Author:    Manuel Hässig <mhaessig at openjdk.org>
Date:      2025-08-04 08:39:05 +0000
URL:       https://git.openjdk.org/jdk/commit/24936b9295e2f0127ee7c683d5fdafc183168a7c

8364409: [BACKOUT] Consolidate Identity of self-inverse operations

Reviewed-by: chagedorn, bmaillard
Backport-of: ddb64836e5bafededb705329137e353f8c74dd5d

! src/hotspot/share/opto/subnode.cpp
! src/hotspot/share/opto/subnode.hpp
- test/hotspot/jtreg/compiler/c2/irTests/InvolutionIdentityTests.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java