git: openjdk/jdk: 8310886: C2 SuperWord: Two nodes should be isomorphic if they are loop invariant but pinned at different nodes outside the loop

[Christian Hagedorn]

Changeset: dd9eab15
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2023-11-09 09:31:54 +0000
URL:       https://git.openjdk.org/jdk/commit/dd9eab15c832c20e65681c21c5f91df11f4cddf9

8310886: C2 SuperWord: Two nodes should be isomorphic if they are loop invariant but pinned at different nodes outside the loop

Reviewed-by: kvn, epeter

! src/hotspot/share/opto/superword.cpp
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
! test/hotspot/jtreg/compiler/lib/ir_framework/test/IREncodingPrinter.java
+ test/hotspot/jtreg/compiler/loopopts/superword/TestMulAddS2I.java