git: openjdk/jdk18u: master: 8284848: C2: Compiler blackhole arguments should be treated as globally escaping

[Aleksey Shipilev]

Changeset: 15776b5b
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2022-05-11 14:53:41 +0000
URL:       https://git.openjdk.java.net/jdk18u/commit/15776b5b12f3d4ed0e933f9c9b2c10caca1150b1

8284848: C2: Compiler blackhole arguments should be treated as globally escaping

Reviewed-by: kvn
Backport-of: 5629c7555f9bb779c57f45dfb071abbb1d87bb7d

! src/hotspot/share/opto/escape.cpp
! test/hotspot/jtreg/compiler/blackhole/BlackholeIntrinsicTest.java
! test/hotspot/jtreg/compiler/blackhole/BlackholeTarget.java
+ test/hotspot/jtreg/compiler/c2/irTests/blackhole/BlackholeStoreStoreEATest.java
+ test/hotspot/jtreg/compiler/c2/irTests/blackhole/BlackholeSyncEATest.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java