hg: jdk/sandbox: 8232591: AArch64: Add missing match rules for smaddl, smsubl and smnegl

[chris.hegarty at oracle.com]

Changeset: 674131501e98
Author:    pli
Date:      2019-10-30 09:17 +0800
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/674131501e98

8232591: AArch64: Add missing match rules for smaddl, smsubl and smnegl
Reviewed-by: aph

! src/hotspot/cpu/aarch64/aarch64.ad
+ test/hotspot/jtreg/compiler/codegen/TestSignedMultiplyLong.java