git: openjdk/jdk13u-dev: 8248043: Need to eliminate excessive i2l conversions

[Yuri Nesterenko]

Changeset: 613eb445
Author:    Sergey Nazarkin <snazarki at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-05-13 08:51:58 +0000
URL:       https://git.openjdk.java.net/jdk13u-dev/commit/613eb44507694551f8dc6f8de545a9c0a752705d

8248043: Need to eliminate excessive i2l conversions

Backport-of: 6d137a36169956171bfd0afef91e8ce29b568e33

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