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

[boris.ulasevich at bell-sw.com]

Changeset: c577c6590ec5
Author:    bulasevich
Date:      2020-06-26 11:16 -0400
URL:       https://hg.openjdk.java.net/jdk/submit/rev/c577c6590ec5

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