[8u-dev, ppc] RFR for (almost clean) backport of 8185696: PPC64: Improve VSR support to use up to 64 registers
Andrew John Hughes
gnu.andrew at redhat.com
Mon May 27 16:31:35 UTC 2019
On 27/05/2019 10:06, Kazunori Ogata wrote:
> I'm requesting backport of 8185696: PPC64: Improve VSR support to use up
> to 64 registers to jdk8u-dev. This patch can be applied almost cleanly,
> but one chunk failed (other than a copyright year conflict) because the
> definition of MTVSRWA_OPCODE is missing in
> MTVSRWA_OPCODE was added in 8144019: PPC64 C1: Introduce Client Compiler
> , which added tiered compilation feature in JDK9. Since JDK8 does not
> support tiered compilation, we cannot apply this change set.
> So I manually applied the failed chunk by skipping the MTVSRWA_OPCODE
> definition because no code in this changeset and other changesets I'm
> going to backport uses this opcode. I'll leave it to the future backport
> that really needs this opcode.
> Is this fix acceptable for backport request? If there is no objection in
> a few days, I'll go forward to add jdk8u-fix-request tag in the original
> bug report. I verified I can build both fastdebug and release version,
> and no degradation in jtreg.
> Original bug report:
>  https://bugs.openjdk.java.net/browse/JDK-8144019
This mostly looks ok, but why is the copyright header updated to 2019
for assembler_ppc.hpp, but not register_ppc.hpp and register_ppc.cpp?
Senior Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)
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