hg: jdk-updates/jdk11u-dev: 8249602: C2: assert(cnt == _outcnt) failed: no insertions allowed

[goetz.lindenmaier at sap.com]

Changeset: 9bc159c5b9a9
Author:    chagedorn
Date:      2020-07-28 16:05 +0200
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/9bc159c5b9a9

8249602: C2: assert(cnt == _outcnt) failed: no insertions allowed
Summary: Use DUIterator instead of DUIterator_Fast due to legit insertions.
Reviewed-by: kvn, thartmann

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