August 2017 - aarch64-port-dev

RFR: Bulk import from Shenandoah
by Roman Kennke 18 Sep '17

18 Sep '17

I would like to bulk-import some changes from Shenandoah/JDK8u: http://cr.openjdk.java.net/~rkennke/aarch64-bulk-import-shenandoah-2017-08-… <http://cr.openjdk.java.net/%7Erkennke/aarch64-bulk-import-shenandoah-2017-0…> It is made of 26 changes, squashed into one bulk change. It's mostly backports of stuff that has baked in jdk9 and jdk10 dev repos, and some jdk8 specific fixes and added tests. It's all gone through our own testing, and doesn't touch anything non-shenandoah. The reason why we're doing bulk import instead of single-changeset import as we did last time is that it makes it easier to merge the import back into Shenandoah. I got a whole lot of problems this time with sorting out conflicts from last merge's transplanted changesets. Ok to push? Roman

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Re: [aarch64-port-dev ] RFR(S): 8154537: AArch64: some integer rotate instructions are never emitted
by Andrew Haley 05 Sep '17

05 Sep '17

I'm looking at the webrev in http://cr.openjdk.java.net/~roland/8154537/webrev.00/ and I see the the changes were made to aarch64.ad but not to ad_aarch64.m4. This is problematic because some .m4 files are used to generate the .ad file, and if anyone regenerates the .ad file the bug will regress. I think this is the change we need to make. It won't affect generated code at all, but it is something of a ticking bomb. diff -r 214a94e9366c src/cpu/aarch64/vm/aarch64_ad.m4 --- a/src/cpu/aarch64/vm/aarch64_ad.m4 Mon Jul 17 12:11:32 2017 +0000 +++ b/src/cpu/aarch64/vm/aarch64_ad.m4 Fri Jul 28 18:57:25 2017 +0100 @@ -268,21 +268,21 @@ ins_pipe(ialu_reg_reg_vshift); %}')dnl define(ROL_INSN, ` -instruct $3$1_rReg_Var_C$2(iRegLNoSp dst, iRegL src, iRegI shift, immI$2 c$2, rFlagsReg cr) +instruct $3$1_rReg_Var_C$2(iReg$1NoSp dst, iReg$1 src, iRegI shift, immI$2 c$2, rFlagsReg cr) %{ match(Set dst (Or$1 (LShift$1 src shift) (URShift$1 src (SubI c$2 shift)))); expand %{ - $3L_rReg(dst, src, shift, cr); + $3$1_rReg(dst, src, shift, cr); %} %}')dnl define(ROR_INSN, ` -instruct $3$1_rReg_Var_C$2(iRegLNoSp dst, iRegL src, iRegI shift, immI$2 c$2, rFlagsReg cr) +instruct $3$1_rReg_Var_C$2(iReg$1NoSp dst, iReg$1 src, iRegI shift, immI$2 c$2, rFlagsReg cr) %{ match(Set dst (Or$1 (URShift$1 src shift) (LShift$1 src (SubI c$2 shift)))); expand %{ - $3L_rReg(dst, src, shift, cr); + $3$1_rReg(dst, src, shift, cr); %} %}')dnl ROL_EXPAND(L, rol, rorv) -- Andrew Haley Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671

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[RFR] 8151841: Build needs additional flags to compile with GCC 6 [plus parts of 8149647 & 8032045]
by Andrew Hughes 05 Sep '17

05 Sep '17

Hi all, The aarch64/jdk8u tree, as it currently stands, won't build on GCC >= 6. A fix for this was pushed upstream over a year as 8151841: https://bugs.openjdk.java.net/browse/JDK-8151841 but has not yet appeared in any 8u releases, due to the delay of 8u122 this January. It's expected to appear as part of 8u152 in October, and so we would pull it into aarch64/jdk8u after that. As more and more people are now moving to distros with either GCC 6 (and now 7), I suggest we cherry-pick this change and apply it to aarch64/jdk8u prematurely, so developers on newer versions of GCC can build. As a case in point, I've had to apply and then remove this fix myself to test merges of aarch64/jdk8u. The changeset applies as-is to aarch64/jdk8u. Webrev: http://cr.openjdk.java.net/~andrew/aarch64-8/8151841/ Ok to push? Thanks, -- Andrew :) Senior Free Java Software Engineer Red Hat, Inc. (http://www.redhat.com) Web Site: http://fuseyism.com Twitter: https://twitter.com/gnu_andrew_java PGP Key: ed25519/0xCFDA0F9B35964222 (hkp://keys.gnupg.net) Fingerprint = 5132 579D D154 0ED2 3E04 C5A0 CFDA 0F9B 3596 4222

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RFR: 8186671: Use `yield` instruction in SpinPause on linux-aarch64
by Dmitry Chuyko 02 Sep '17

02 Sep '17

Please review a change in SpinPause implementation. related study: http://cr.openjdk.java.net/~dchuyko/8186670/yield/spinwait.html rfe: https://bugs.openjdk.java.net/browse/JDK-8186671 webrev: http://cr.openjdk.java.net/~dchuyko/8186671/webrev.00/ The function was moved to platform .S file and now contains yield instruction. -- Dmitry Chuyko

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JTREG, JCStress, SPECjbb2015 and Hadoop/Terasort results for OpenJDK 8u on AArch64
by ci_notify＠linaro.org 31 Aug '17

31 Aug '17

This is a summary of the JTREG test results =========================================== The build and test results are cycled every 15 days. For detailed information on the test output please refer to: http://openjdk.linaro.org/jdk8u/openjdk-jtreg-nightly-tests/summary/2017/24… ------------------------------------------------------------------------------- client-release/hotspot ------------------------------------------------------------------------------- Build 0: aarch64/2016/dec/01 pass: 668; fail: 44; error: 6 Build 1: aarch64/2016/dec/21 pass: 668; fail: 44; error: 6 Build 2: aarch64/2017/jan/18 pass: 672; fail: 44; error: 3 Build 3: aarch64/2017/feb/04 pass: 672; fail: 44; error: 3 Build 4: aarch64/2017/feb/24 pass: 672; fail: 44; error: 3 Build 5: aarch64/2017/mar/29 pass: 672; fail: 44; error: 3 Build 6: aarch64/2017/apr/05 pass: 672; fail: 44; error: 3 Build 7: aarch64/2017/apr/20 pass: 673; fail: 44; error: 3 Build 8: aarch64/2017/jun/12 pass: 713; fail: 6; error: 2 Build 9: aarch64/2017/jun/26 pass: 713; fail: 6; error: 2 Build 10: aarch64/2017/jul/21 pass: 708; fail: 12; error: 2 Build 11: aarch64/2017/aug/16 pass: 708; fail: 12; error: 2 Build 12: aarch64/2017/aug/19 pass: 708; fail: 12; error: 2 Build 13: aarch64/2017/aug/31 pass: 708; fail: 12; error: 2 ------------------------------------------------------------------------------- client-release/jdk ------------------------------------------------------------------------------- Build 0: aarch64/2016/dec/21 pass: 5,621; fail: 219; error: 45 Build 1: aarch64/2017/jan/18 pass: 5,683; fail: 213; error: 36 Build 2: aarch64/2017/feb/04 pass: 5,667; fail: 234; error: 41 Build 3: aarch64/2017/feb/24 pass: 5,701; fail: 217; error: 27 Build 4: aarch64/2017/mar/29 pass: 5,686; fail: 225; error: 34 Build 5: aarch64/2017/apr/05 pass: 5,677; fail: 235; error: 33 Build 6: aarch64/2017/apr/20 pass: 5,671; fail: 254; error: 34 Build 7: aarch64/2017/jun/12 pass: 5,765; fail: 175; error: 23 Build 8: aarch64/2017/jun/26 pass: 5,757; fail: 174; error: 23 Build 9: aarch64/2017/jul/21 pass: 5,768; fail: 172; error: 22 Build 10: aarch64/2017/aug/16 pass: 5,753; fail: 188; error: 21 Build 11: aarch64/2017/aug/19 pass: 5,763; fail: 177; error: 23 Build 12: aarch64/2017/aug/31 pass: 5,754; fail: 183; error: 26 ------------------------------------------------------------------------------- client-release/langtools ------------------------------------------------------------------------------- Build 0: aarch64/2016/dec/01 pass: 3,091; error: 16 Build 1: aarch64/2016/dec/21 pass: 3,096; error: 11 Build 2: aarch64/2017/jan/18 pass: 3,098; error: 13 Build 3: aarch64/2017/feb/04 pass: 3,094; error: 17 Build 4: aarch64/2017/feb/24 pass: 3,106; error: 6 Build 5: aarch64/2017/mar/29 pass: 3,105; fail: 2; error: 5 Build 6: aarch64/2017/apr/05 pass: 3,104; fail: 2; error: 6 Build 7: aarch64/2017/apr/20 pass: 3,101; fail: 2; error: 10 Build 8: aarch64/2017/jun/12 pass: 3,109; fail: 2; error: 2 Build 9: aarch64/2017/jun/26 pass: 3,109; fail: 2; error: 2 Build 10: aarch64/2017/jul/21 pass: 3,110; fail: 2; error: 2 Build 11: aarch64/2017/aug/16 pass: 3,111; fail: 2; error: 1 Build 12: aarch64/2017/aug/19 pass: 3,111; fail: 2; error: 1 Build 13: aarch64/2017/aug/31 pass: 3,110; fail: 2; error: 2 ------------------------------------------------------------------------------- server-release/hotspot ------------------------------------------------------------------------------- Build 0: aarch64/2016/nov/21 pass: 668; fail: 44; error: 6 Build 1: aarch64/2016/dec/01 pass: 669; fail: 43; error: 6 Build 2: aarch64/2016/dec/21 pass: 668; fail: 44; error: 6 Build 3: aarch64/2017/jan/18 pass: 673; fail: 43; error: 3 Build 4: aarch64/2017/feb/04 pass: 673; fail: 43; error: 3 Build 5: aarch64/2017/feb/24 pass: 673; fail: 43; error: 3 Build 6: aarch64/2017/mar/29 pass: 673; fail: 43; error: 3 Build 7: aarch64/2017/apr/05 pass: 673; fail: 43; error: 3 Build 8: aarch64/2017/apr/20 pass: 674; fail: 43; error: 3 Build 9: aarch64/2017/jun/12 pass: 714; fail: 5; error: 2 Build 10: aarch64/2017/jun/26 pass: 714; fail: 5; error: 2 Build 11: aarch64/2017/jul/21 pass: 709; fail: 11; error: 2 Build 12: aarch64/2017/aug/16 pass: 709; fail: 11; error: 2 Build 13: aarch64/2017/aug/19 pass: 709; fail: 11; error: 2 Build 14: aarch64/2017/aug/31 pass: 709; fail: 11; error: 2 ------------------------------------------------------------------------------- server-release/jdk ------------------------------------------------------------------------------- Build 0: aarch64/2016/dec/21 pass: 5,618; fail: 226; error: 41 Build 1: aarch64/2017/jan/18 pass: 5,690; fail: 206; error: 36 Build 2: aarch64/2017/feb/04 pass: 5,669; fail: 214; error: 59 Build 3: aarch64/2017/feb/24 pass: 5,701; fail: 221; error: 23 Build 4: aarch64/2017/mar/29 pass: 5,696; fail: 222; error: 27 Build 5: aarch64/2017/apr/05 pass: 5,692; fail: 229; error: 24 Build 6: aarch64/2017/apr/20 pass: 5,705; fail: 220; error: 34 Build 7: aarch64/2017/jun/12 pass: 5,778; fail: 161; error: 24 Build 8: aarch64/2017/jun/26 pass: 5,770; fail: 159; error: 25 Build 9: aarch64/2017/jul/21 pass: 5,769; fail: 168; error: 25 Build 10: aarch64/2017/aug/16 pass: 5,761; fail: 181; error: 20 Build 11: aarch64/2017/aug/19 pass: 5,768; fail: 175; error: 20 Build 12: aarch64/2017/aug/31 pass: 5,761; fail: 177; error: 25 ------------------------------------------------------------------------------- server-release/langtools ------------------------------------------------------------------------------- Build 0: aarch64/2016/nov/21 pass: 3,095; error: 12 Build 1: aarch64/2016/dec/01 pass: 3,095; error: 12 Build 2: aarch64/2016/dec/21 pass: 3,092; error: 15 Build 3: aarch64/2017/jan/18 pass: 3,102; error: 9 Build 4: aarch64/2017/feb/04 pass: 3,099; error: 12 Build 5: aarch64/2017/feb/24 pass: 3,109; error: 3 Build 6: aarch64/2017/mar/29 pass: 3,104; fail: 2; error: 6 Build 7: aarch64/2017/apr/05 pass: 3,105; fail: 2; error: 5 Build 8: aarch64/2017/apr/20 pass: 3,098; fail: 2; error: 13 Build 9: aarch64/2017/jun/12 pass: 3,109; fail: 2; error: 2 Build 10: aarch64/2017/jun/26 pass: 3,109; fail: 2; error: 2 Build 11: aarch64/2017/jul/21 pass: 3,110; fail: 2; error: 2 Build 12: aarch64/2017/aug/16 pass: 3,110; fail: 2; error: 2 Build 13: aarch64/2017/aug/19 pass: 3,110; fail: 2; error: 2 Build 14: aarch64/2017/aug/31 pass: 3,110; fail: 2; error: 2 Previous results can be found here: http://openjdk.linaro.org/jdk8u/openjdk-jtreg-nightly-tests/index.html SPECjbb2015 composite regression test completed =============================================== This test measures the relative performance of the server compiler running the SPECjbb2015 composite tests and compares the performance against the baseline performance of the server compiler taken on 2016-11-21. In accordance with [1], the SPECjbb2015 tests are run on a system which is not production ready and does not meet all the requirements for publishing compliant results. The numbers below shall be treated as non-compliant (nc) and are for experimental purposes only. Relative performance: Server max-jOPS (nc): 0.63x Relative performance: Server critical-jOPS (nc): 0.67x Details of the test setup and historical results may be found here: http://openjdk.linaro.org/jdk8u/SPECjbb2015-results/ [1] http://www.spec.org/fairuse.html#Academic Regression test Hadoop-Terasort completed ========================================= This test measures the performance of the server and client compilers running Hadoop sorting a 1GB file using Terasort and compares the performance against the baseline performance of the Zero interpreter and against the baseline performance of the client and server compilers on 2014-04-01. Relative performance: Zero: 1.0, Client: 54.29, Server: 104.56 Client 54.29 / Client 2014-04-01 (43.00): 1.26x Server 104.56 / Server 2014-04-01 (71.00): 1.47x Details of the test setup and historical results may be found here: http://openjdk.linaro.org/jdk8u/hadoop-terasort-benchmark-results/ This is a summary of the jcstress test results ============================================== The build and test results are cycled every 15 days. 2016-11-03 pass rate: 5140/5140, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2016/308/results/ 2016-11-21 pass rate: 5140/5140, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2016/326/results/ 2016-12-01 pass rate: 5140/5140, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2016/336/results/ 2016-12-22 pass rate: 5140/5140, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2016/356/results/ 2017-01-18 pass rate: 5140/5140, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/018/results/ 2017-02-06 pass rate: 5140/5140, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/035/results/ 2017-02-25 pass rate: 5176/5176, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/055/results/ 2017-03-29 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/088/results/ 2017-04-05 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/095/results/ 2017-04-20 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/110/results/ 2017-06-13 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/163/results/ 2017-06-27 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/177/results/ 2017-08-16 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/228/results/ 2017-08-19 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/231/results/ 2017-08-31 pass rate: 8484/8485, results: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/2017/243/results/ For detailed information on the test output please refer to: http://openjdk.linaro.org/jdk8u/jcstress-nightly-runs/

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[10] RFR: 8186915 - AARCH64: Intrinsify squareToLen and mulAdd
by Dmitrij Pochepko 31 Aug '17

31 Aug '17

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jdk1 Fix for hotspot/test/gc/g1/TestJNIWeakG1/TestJNIWeakG1.java
by Stuart Monteith 30 Aug '17

30 Aug '17

Hello, Bug number pending - Ningsheng/Felix/Yang - could you open a bug please? There was a bug introduced by "8176100 G1 Need prebarrier on deference of weak JNI handles" where a rscratch1 is being passed to g1_write_barrier_pre where it is already using rscratch1. This causes the TestJNIWeakG1 testcase to SIGSEGV as the temporary register is being used fro two conflicting purposes. There don't appear to be any other problems of this type with 8176100. Regards, Stuart # HG changeset patch # User smonteith # Date 1502900365 -3600 # Wed Aug 16 17:19:25 2017 +0100 # Node ID a3ec37c8743c9ce18cdbc0da204d07baf37e640f # Parent 525e9457b66a62b50c7ae7350da0c8031f671b92 Aarch64: Fix hotspot/test/gc/g1/TestJNIWeakG1/TestJNIWeakG1.java diff -r 525e9457b66a -r a3ec37c8743c src/cpu/aarch64/vm/sharedRuntime_aarch64.cpp --- a/src/cpu/aarch64/vm/sharedRuntime_aarch64.cpp Tue Aug 15 15:02:40 2017 +0300 +++ b/src/cpu/aarch64/vm/sharedRuntime_aarch64.cpp Wed Aug 16 17:19:25 2017 +0100 @@ -2067,7 +2067,7 @@ __ g1_write_barrier_pre(noreg /* obj */, r0 /* pre_val */, rthread /* thread */, - rscratch1 /* tmp */, + rscratch2 /* tmp */, true /* tosca_live */, true /* expand_call */); }

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hg: aarch64-port/jdk8u: 8151841: Build needs additional flags to compile with GCC 6 [plus parts of 8149647 & 8032045]
by gnu.andrew＠redhat.com 30 Aug '17

30 Aug '17

Changeset: 461c9270383a Author: andrew Date: 2016-07-11 05:02 +0100 URL: http://hg.openjdk.java.net/aarch64-port/jdk8u/rev/461c9270383a 8151841: Build needs additional flags to compile with GCC 6 [plus parts of 8149647 & 8032045] Summary: C++ standard needs to be explicitly set and some optimisations turned off to build on GCC 6 Reviewed-by: erikj, dholmes, kbarrett ! common/autoconf/generated-configure.sh ! common/autoconf/hotspot-spec.gmk.in ! common/autoconf/spec.gmk.in ! common/autoconf/toolchain.m4

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Linaro OpenJDK 1708 Engineering Builds available
by Stuart Monteith 29 Aug '17

29 Aug '17

Hello, JDK8u, 9 and 7 builds for aarch64 (marked 1708) are now available here: http://openjdk.linaro.org/relhome.htm They have the following BOM ("Bill Of Materials" ) file contents: BOM for http://icedtea.classpath.org/hg/icedtea7-forest Subdir Hash Tag Tag hash . 602895b43dd8 icedtea-2.7.0pre12 325028fb6c2a corba 11f5122b24e0 icedtea-2.7.0pre12 3ca84ee78bd3 jaxp 03c6bf5e7a4d icedtea-2.7.0pre12 b24121efd081 jaxws e76c114177c1 icedtea-2.7.0pre12 878d12a073cb langtools a4036f67fb21 icedtea-2.7.0pre12 aca9535e921d jdk 0e380c5a1bff icedtea-2.7.0pre12 5af12d99fb1e hotspot 2a6fcefff99a icedtea-2.7.0pre12 490b222d74de nashorn 602895b43dd8 icedtea-2.7.0pre12 325028fb6c2a BOM for http://hg.openjdk.java.net/aarch64-port/jdk8u Subdir Hash Tag Tag hash . 8e9dba37ccab aarch64-jdk8u144-b01 56116fb0cf9d corba 4b222c433612 aarch64-jdk8u144-b01 252ce7a6af00 jaxp 2793510feb8c aarch64-jdk8u144-b01 9b19202ef8de jaxws 1eb06202a5c9 aarch64-jdk8u144-b01 9f9fa7c7fdb9 langtools eb8e9a1d6c9f aarch64-jdk8u144-b01 f8b7f1661494 jdk 9322c39fd0df aarch64-jdk8u144-b01 bb00b4d55a85 hotspot 7672149aea2c aarch64-jdk8u144-b01 20d83f8419c4 nashorn 13c40d5bd8cc aarch64-jdk8u144-b01 66cf64cd5739 BOM for http://hg.openjdk.java.net/jdk9/dev Subdir Hash Tag Tag hash . a08cbfc0e4ec jdk-9+181 b656dea9398e corba 5666eba44ac6 jdk-9+181 ba71941ad9db jaxp 364631d8ff2e jdk-9+181 ea18d767c9ec jaxws a1d64f45f9d5 jdk-9+181 4f852cc3a1c9 langtools 65bfdabaab9c jdk-9+181 5ecbed313125 jdk 65464a307408 jdk-9+181 bd66ea2fdde3 hotspot b756e7a2ec33 jdk-9+181 4a443796f6f5 nashorn 17cc754c8936 jdk-9+181 47f8d75b8765 BR, Stuart

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[aarch64-port-dev] [10] RFR: 8184049 : Matching rule for ubfiz
by Daniel Stewart 28 Aug '17

28 Aug '17

Please see the webrev [1] for adding some matching rules to ubfiz [2]. [1]: http://cr.openjdk.java.net/~njian/8184049/webrev.00/ [2]: https://bugs.openjdk.java.net/browse/JDK-8184049 Thanks, Daniel Stewart -- Daniel Stewart

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