RFR: 8233078 : fix minimal VM build on Linux ppc64(le)

[Doerr, Martin]

Hi Matthias,

thanks for fixing it. I have a few requests:

disassembler_ppc.cpp:
Please remove includes completely if no longer needed (instead of commenting out).

sharedRuntime_ppc.cpp:
I think it's better to remove the 2 align(InteriorEntryAlignment). Succeeding code is not performance critical.

stubGenerator_ppc.cpp:
Code should better be protected by #ifdef COMPILER2 than commenting out.

Otherwise, looks good to me.

Thanks,
Martin


From: Baesken, Matthias <matthias.baesken at sap.com>
Sent: Dienstag, 29. Oktober 2019 12:42
To: 'hotspot-dev at openjdk.java.net' <hotspot-dev at openjdk.java.net>
Cc: 'build-dev at openjdk.java.net' <build-dev at openjdk.java.net>; Doerr, Martin <martin.doerr at sap.com>
Subject: RFR: 8233078 : fix minimal VM build on Linux ppc64(le)

Hello, please review the following fix .
I recently  experimented a bit with the  minimal  VM  build  on  linux x86_64    (--with-jvm-features=minimal --with-jvm-variants=minimal) .
This worked fine .

However  when I tried  the minimal vm build   on linux  ppc64 / ppc64le ,   I noticed that it fails  because of a few  wrong dependencies .
Thanks to Martin for the advice regarding

Register ic = as_Register(Matcher::inline_cache_reg_encode());

Replacement with


Register ic = R19_inline_cache_reg;

In http://cr.openjdk.java.net/~mbaesken/webrevs/8233078.0/src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp.frames.html


Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8233078
http://cr.openjdk.java.net/~mbaesken/webrevs/8233078.0/


Thanks, Matthias