git: openjdk/jdk: 8253191: C2: Masked byte comparisons with large masks produce wrong result on x86

[Vladimir Ivanov]

Changeset: 6d13c766
Author:    Vladimir Ivanov <vlivanov at openjdk.org>
Date:      2020-10-08 12:41:46 +0000
URL:       https://git.openjdk.java.net/jdk/commit/6d13c766

8253191: C2: Masked byte comparisons with large masks produce wrong result on x86

Reviewed-by: thartmann

! src/hotspot/cpu/x86/x86_64.ad
! test/hotspot/jtreg/compiler/c2/TestUnsignedByteCompare.java