git: openjdk/jdk: master: 8346664: C2: Optimize mask check with constant offset

[duke]

Changeset: 7f3ecb4d
Branch: master
Author:    Matthias Ernst <mernst-github at mernst.org>
Date:      2025-02-17 13:07:23 +0000
URL:       https://git.openjdk.org/jdk/commit/7f3ecb4d92fdb084ce632cab484cf4578487b090

8346664: C2: Optimize mask check with constant offset

Reviewed-by: epeter, qamai

! src/hotspot/share/opto/mulnode.cpp
! src/hotspot/share/opto/mulnode.hpp
! test/hotspot/jtreg/compiler/c2/irTests/TestShiftAndMask.java
! test/hotspot/jtreg/compiler/loopopts/superword/TestEquivalentInvariants.java
! test/hotspot/jtreg/compiler/vectorization/TestPopulateIndex.java