git: openjdk/jdk25u: master: 8359270: C2: alignment check should consider base offset when emitting arraycopy runtime call

[Fei Yang]

Changeset: 26d99e04
Branch: master
Author:    Fei Yang <fyang at openjdk.org>
Date:      2025-07-01 00:49:45 +0000
URL:       https://git.openjdk.org/jdk25u/commit/26d99e045a353168c535272615d733fcce00df32

8359270: C2: alignment check should consider base offset when emitting arraycopy runtime call

Backport-of: 6b4393917ae689818d67fcaf9cc61ca16ea6d426

! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/stringopts.cpp
+ test/hotspot/jtreg/compiler/c2/irTests/stringopts/TestArrayCopySelect.java