git: openjdk/jdk17u-dev: 8284848: C2: Compiler blackhole arguments should be treated as globally escaping

[Aleksey Shipilev]

Changeset: 31eefe5e
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2022-05-11 14:54:56 +0000
URL:       https://git.openjdk.java.net/jdk17u-dev/commit/31eefe5e9693419b2f23e069fddf9229e04e423e

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