hg: jdk/sandbox: 8247408: IdealGraph bit check expression canonicalization

[chris.hegarty at oracle.com]

Changeset: 4a91f6b96a50
Author:    bulasevich
Date:      2020-06-29 07:26 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/4a91f6b96a50

8247408: IdealGraph bit check expression canonicalization
Reviewed-by: aph, kvn, adinn

! src/hotspot/share/opto/subnode.cpp
+ test/hotspot/jtreg/compiler/c2/TestBit.java
+ test/micro/org/openjdk/bench/vm/compiler/BitTest.java