xlc16 for jdk11 AIX build

[Langer, Christoph]

Hi Matthias,

I can imagine going to xlc16 with the legacy (non-clang) compiler for JDK11. Using xlc16/clang would be too disruptive, I think. The binaries would probably not work on older versions of AIX any longer that we might want to support still.

Best regards
Christoph

From: Baesken, Matthias <matthias.baesken at sap.com>
Sent: Mittwoch, 30. Oktober 2019 10:17
To: 'ppc-aix-port-dev at openjdk.java.net' <ppc-aix-port-dev at openjdk.java.net>
Cc: Langer, Christoph <christoph.langer at sap.com>; Steiner, Andreas <a.steiner at sap.com>
Subject: xlc16 for jdk11 AIX build

Hello,  we recently moved  the  jdk/jdk   AIX-build   to xlc16 (new-style xlclang) .
See for instance  change :   8224214: [AIX] Remove support for legacy xlc compiler
that removed the support for older xlc compilers.

We at SAP  currently think about  moving  the jdk11  AIX - build  to  xlc16  .
There are  two  options when building with xlc16  :

  1.  using  the   xlc16 legacy (non-clang) compiler .
This works already ,   and is probably  more compatible  for people using e.g. xlc12 / xlc13 ;


  1.  using  xlc16/xlclang
This would  need  the downporting of more changes to 11 and is probably  less  (not?) compatible  for people  still using older xlc  versions .


What is your opinion ?
What are the xlc versions  people use currently for building  jdk11 on AIX  ?

Best regards, Matthias




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