hg: jdk/jdk: 8231620: assert(bol->is_Bool()) crash during split if due to FastLockNode

[rwestrel at redhat.com]

Changeset: 8991796c17d4
Author:    roland
Date:      2019-10-01 10:28 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/8991796c17d4

8231620: assert(bol->is_Bool()) crash during split if due to FastLockNode
Reviewed-by: vlivanov, thartmann

! src/hotspot/share/opto/loopopts.cpp
! src/hotspot/share/opto/split_if.cpp
+ test/hotspot/jtreg/compiler/loopopts/SplitIfSharedFastLockBehindCastPP.java