git: openjdk/jdk: 8286451: C2: assert(nb == 1) failed: only when the head is not shared

[Roland Westrelin]

Changeset: bf0e625f
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2022-06-08 06:41:20 +0000
URL:       https://git.openjdk.java.net/jdk/commit/bf0e625fe0e83c00006f13367a67e9f6175d21e4

8286451: C2: assert(nb == 1) failed: only when the head is not shared

Reviewed-by: thartmann, chagedorn

! src/hotspot/share/ci/ciTypeFlow.cpp
+ test/hotspot/jtreg/compiler/ciTypeFlow/TestSharedLoopHead.java