git: openjdk/jdk: master: 8344251: C2: remove blackholes with dead control input

[Tobias Hartmann]

Changeset: 1138a186
Branch: master
Author:    Marc Chevalier <mchevalier at openjdk.org>
Committer: Tobias Hartmann <thartmann at openjdk.org>
Date:      2025-04-17 07:24:14 +0000
URL:       https://git.openjdk.org/jdk/commit/1138a186eb670e2c0662bda69c35680b41f4d66c

8344251: C2: remove blackholes with dead control input

Reviewed-by: shade, thartmann, kvn

! src/hotspot/share/opto/cfgnode.cpp
! src/hotspot/share/opto/cfgnode.hpp
+ test/hotspot/jtreg/compiler/blackhole/DeadBhElimination.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java