hg: jdk9/hs-comp/hotspot: 8075921: assert assert(allocx == alloc) fails in library_call.cpp

[roland.westrelin at oracle.com]

Changeset: f5937a29d1a4
Author:    roland
Date:      2015-03-27 08:58 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/f5937a29d1a4

8075921: assert assert(allocx == alloc) fails in library_call.cpp
Summary: control becomes top after arraycopy guards and confuses tighly coupled allocation logic
Reviewed-by: kvn, vlivanov

! src/share/vm/opto/graphKit.cpp
! src/share/vm/opto/library_call.cpp
+ test/compiler/arraycopy/TestArrayCopyStoppedAfterGuards.java