git: openjdk/jdk: 8308444: LoadStoreNode::result_not_used() is too conservative

[Quan Anh Mai]

Changeset: 947f1497
Author:    Quan Anh Mai <qamai at openjdk.org>
Date:      2023-06-15 16:00:18 +0000
URL:       https://git.openjdk.org/jdk/commit/947f14977a4d1ded839712aea020eaa87c23a23f

8308444: LoadStoreNode::result_not_used() is too conservative

Reviewed-by: kvn, thartmann

! src/hotspot/cpu/x86/assembler_x86.cpp
! src/hotspot/cpu/x86/assembler_x86.hpp
! src/hotspot/cpu/x86/x86_64.ad
! src/hotspot/share/opto/memnode.cpp
+ test/hotspot/jtreg/compiler/c2/irTests/TestGetAndAdd.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java