git: openjdk/jdk17u-dev: 8284358: Unreachable loop is not removed from C2 IR, leading to a broken graph

[Goetz Lindenmaier]

Changeset: 2a5a30b7
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-07-28 11:48:21 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/2a5a30b761eb2b502a23a3d587029e76fb919bb5

8284358: Unreachable loop is not removed from C2 IR, leading to a broken graph

Backport-of: 95497772e7207b5752e6ecace4a6686df2b45227

! src/hotspot/share/opto/cfgnode.cpp
+ test/hotspot/jtreg/compiler/c2/TestDeadDataLoop.java