hg: jdk/jdk: 8239787: AArch64: String.indexOf may incorrectly handle empty strings

[abrygin at azul.com]

Changeset: a3a462ce27cd
Author:    bae
Date:      2020-03-03 13:06 +0300
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/a3a462ce27cd

8239787: AArch64: String.indexOf may incorrectly handle empty strings
Reviewed-by: aph, lmesnik, yan
Contributed-by: alexey at azul.com

! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
+ test/hotspot/jtreg/runtime/StringIntrinsic/StringIndexOfChar.java