JDK-8255562 : delete UseRDPCForConstantTableBase
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 16
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2020-10-28
  • Updated: 2020-11-20
  • Resolved: 2020-11-08
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JDK 16
16 b24Fixed
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Description
c2_globals.hpp
  product(bool, UseRDPCForConstantTableBase, false,                         \
          "Use Sparc RDPC instruction for the constant table base.")        \

sparc backend has gone.  this is leftover in c2. 
devirtualization of gcc might have better information if pinned() returns false. 
 
class MachConstantBaseNode
  virtual bool pinned() const { return UseRDPCForConstantTableBase; }


Comments
Changeset: 6a183fbb Author: Xin Liu <xliu@openjdk.org> Committer: Paul Hohensee <phh@openjdk.org> Date: 2020-11-08 15:03:57 +0000 URL: https://github.com/openjdk/jdk/commit/6a183fbb
08-11-2020

Related to: JDK-8244224 Implementation of JEP 381: Remove the Solaris and SPARC Ports (hotspot)
05-11-2020

relevant code in backend has been removed in JDK-8244224
30-10-2020