hg: jdk/sandbox: 8229994: assert(false) failed: Bad graph detected in get_early_ctrl_for_expensive

[chris.hegarty at oracle.com]

Changeset: 4938269b8b17
Author:    chagedorn
Date:      2019-12-06 10:00 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/4938269b8b17

8229994: assert(false) failed: Bad graph detected in get_early_ctrl_for_expensive
Summary: Fixes wrong idom information set in loop peeling when a loop strip mined loop is involved.
Reviewed-by: vlivanov, thartmann

! src/hotspot/share/opto/loopTransform.cpp
+ test/hotspot/jtreg/compiler/loopopts/PeelingAndLoopStripMining.java