hg: jdk/jdk11: 8206163: AArch64: incorrect code generation for StoreCM

[adinn at redhat.com]

Changeset: 8df91a1b549b
Author:    adinn
Date:      2018-07-09 09:38 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk11/rev/8df91a1b549b

8206163: AArch64: incorrect code generation for StoreCM
Summary: StoreCM may require planting a StoreStore barrier
Reviewed-by: aph, zyao, roland

! src/hotspot/cpu/aarch64/aarch64.ad
! test/hotspot/jtreg/compiler/c2/aarch64/TestVolatiles.java