[aarch64-port-dev ] RFR: aarch64: Backports from jdk8 to jdk7

[Edward Nevill]

Hi,

Is it OK to backport the following changesets from jdk8 to jdk7? Only aarch64 specific files are changed.

Tested with jtreg hotspot and langtools. Results before and after are the same.

hotspot: Test results: passed: 297; failed: 12; error: 2
langtools: Test results: passed: 1,973; failed: 1

Thanks,
Ed.

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comparing with ssh://enevill@icedtea.classpath.org/hg/icedtea7-forest/hotspot
running ssh enevill at icedtea.classpath.org 'hg -R hg/icedtea7-forest/hotspot serve --stdio'
searching for changes
changeset:   6386:bf7090ef17e9
user:        hshi
date:        Thu Nov 26 15:37:04 2015 +0000
files:       src/cpu/aarch64/vm/templateTable_aarch64.cpp
description:
8143584: Load constant pool tag and class status with load acquire
Reviewed-by: roland, aph


changeset:   6387:450160531b54
user:        aph
date:        Wed Dec 16 11:35:59 2015 +0000
files:       src/cpu/aarch64/vm/templateInterpreter_aarch64.cpp
description:
8144582: AArch64 does not generate correct branch profile data
Reviewed-by: kvn


changeset:   6388:06ae64257dad
user:        fyang
date:        Mon Dec 07 21:14:56 2015 +0800
files:       src/cpu/aarch64/vm/stubGenerator_aarch64.cpp
description:
8144201: aarch64: jdk/test/com/sun/net/httpserver/Test6a.java fails with --enable-unlimited-crypto
Summary: Fix typo in stub generate_cipherBlockChaining_decryptAESCrypt
Reviewed-by: roland


changeset:   6389:c07fdacd4144
user:        hshi
date:        Wed Jan 20 04:56:51 2016 -0800
files:       src/cpu/aarch64/vm/c1_LIRAssembler_aarch64.cpp
description:
8147805: aarch64: C1 segmentation fault due to inline Unsafe.getAndSetObject
Summary: In Aarch64 LIR_Assembler.atomic_op, keep stored data reference register in decompressed forms as it may be used later
Reviewed-by: aph
Contributed-by: hui.shi at linaro.org, felix.yang at linaro.org


changeset:   6390:f0eabae221c8
tag:         tip
user:        enevill
date:        Tue Jan 26 14:04:01 2016 +0000
files:       src/cpu/aarch64/vm/aarch64.ad
description:
8148240: aarch64: random infrequent null pointer exceptions in javac
Summary: Disable fp as an allocatable register
Reviewed-by: aph
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