8199696: Remove Runtime1::arraycopy
martin.doerr at sap.com
Thu Mar 15 17:16:38 UTC 2018
PPC64 and s390 parts look good.
Arraycopy should get removed from c1_Runtime1.hpp, too.
From: hotspot-dev [mailto:hotspot-dev-bounces at openjdk.java.net] On Behalf Of Erik Österlund
Sent: Donnerstag, 15. März 2018 16:18
To: hotspot-dev developers <hotspot-dev at openjdk.java.net>
Subject: RFR: 8199696: Remove Runtime1::arraycopy
The Runtime1::arraycopy stub appears to only be used on S390 because
there is no StubRoutines::generic_arraycopy() provided. However, C1
could then simply take a slow path and call its arraycopy stub that
performs a native call. Then this logic may be removed.
I added an assert on each platform that I think should have a
generic_arraycopy() stub, and added a branch to the slow path on S390 if
there is no such stub. If a stub is eventually added on S390, it should
automatically pick that up.
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