hg: jdk/jdk: 8211320: Aarch64: unsafe.compareAndSetByte() and unsafe.compareAndSetShort() c2 intrinsics broken with negative expected value

[rwestrel at redhat.com]

Changeset: 04cbcebf5adf
Author:    roland
Date:      2018-10-04 09:24 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/04cbcebf5adf

8211320: Aarch64: unsafe.compareAndSetByte() and unsafe.compareAndSetShort() c2 intrinsics broken with negative expected value
Reviewed-by: adinn, aph

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp
+ test/hotspot/jtreg/compiler/unsafe/CASandCAEwithNegExpected.java