git: openjdk/jdk17u-dev: 8315377: C2: assert(u->find_out_with(Op_AddP) == nullptr) failed: more than 2 chained AddP nodes?

[Goetz Lindenmaier]

Changeset: 98e54902
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2023-10-06 07:32:41 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/98e54902340abfdeb6cf11ce5fe93833d5ef2d70

8315377: C2: assert(u->find_out_with(Op_AddP) == nullptr) failed: more than 2 chained AddP nodes?

Backport-of: ba1a46392f0b9c77c64278f82513aaf51f5c9b1b

! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/loopopts.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestSinkingMoreThan2AddPNodes.java