src/cpu/ppc/vm/templateTable_ppc_64.cpp

rev 12861 : ppc64 addons for 8171392: make contant pool read-only

*** 1,8 ****
  /*
!  * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2013, 2016 SAP SE. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,8 ----
  /*
!  * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2013, 2017 SAP SE. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 3658,3672 ****
      __ lbzx(Rtags, Rindex, Rtags);
  
      __ cmpdi(CCR0, Rtags, JVM_CONSTANT_Class);
      __ bne(CCR0, Lslow_case);
  
!     // Get instanceKlass (load from Rcpool + sizeof(ConstantPool) + Rindex*BytesPerWord).
      __ sldi(Roffset, Rindex, LogBytesPerWord);
!     __ addi(Rscratch, Rcpool, sizeof(ConstantPool));
!     __ isync(); // Order load of instance Klass wrt. tags.
!     __ ldx(RinstanceKlass, Roffset, Rscratch);
  
      // Make sure klass is fully initialized and get instance_size.
      __ lbz(Rscratch, in_bytes(InstanceKlass::init_state_offset()), RinstanceKlass);
      __ lwz(Rinstance_size, in_bytes(Klass::layout_helper_offset()), RinstanceKlass);
  
--- 3658,3670 ----
      __ lbzx(Rtags, Rindex, Rtags);
  
      __ cmpdi(CCR0, Rtags, JVM_CONSTANT_Class);
      __ bne(CCR0, Lslow_case);
  
!     // Get instanceKlass
      __ sldi(Roffset, Rindex, LogBytesPerWord);
!     __ load_resolved_klass_at_offset(Rcpool, Roffset, RinstanceKlass);
  
      // Make sure klass is fully initialized and get instance_size.
      __ lbz(Rscratch, in_bytes(InstanceKlass::init_state_offset()), RinstanceKlass);
      __ lwz(Rinstance_size, in_bytes(Klass::layout_helper_offset()), RinstanceKlass);
  
*** 3873,3885 ****
    __ b(Lresolved);
  
    // Extract target class from constant pool.
    __ bind(Lquicked);
    __ sldi(Roffset, Roffset, LogBytesPerWord);
!   __ addi(Rcpool, Rcpool, sizeof(ConstantPool));
!   __ isync(); // Order load of specified Klass wrt. tags.
!   __ ldx(RspecifiedKlass, Rcpool, Roffset);
  
    // Do the checkcast.
    __ bind(Lresolved);
    // Get value klass in RobjKlass.
    __ load_klass(RobjKlass, R17_tos);
--- 3871,3881 ----
    __ b(Lresolved);
  
    // Extract target class from constant pool.
    __ bind(Lquicked);
    __ sldi(Roffset, Roffset, LogBytesPerWord);
!   __ load_resolved_klass_at_offset(Rcpool, Roffset, RspecifiedKlass);
  
    // Do the checkcast.
    __ bind(Lresolved);
    // Get value klass in RobjKlass.
    __ load_klass(RobjKlass, R17_tos);
*** 3937,3949 ****
    __ b(Lresolved);
  
    // Extract target class from constant pool.
    __ bind(Lquicked);
    __ sldi(Roffset, Roffset, LogBytesPerWord);
!   __ addi(Rcpool, Rcpool, sizeof(ConstantPool));
!   __ isync(); // Order load of specified Klass wrt. tags.
!   __ ldx(RspecifiedKlass, Rcpool, Roffset);
  
    // Do the checkcast.
    __ bind(Lresolved);
    // Get value klass in RobjKlass.
    __ load_klass(RobjKlass, R17_tos);
--- 3933,3943 ----
    __ b(Lresolved);
  
    // Extract target class from constant pool.
    __ bind(Lquicked);
    __ sldi(Roffset, Roffset, LogBytesPerWord);
!   __ load_resolved_klass_at_offset(Rcpool, Roffset, RspecifiedKlass);
  
    // Do the checkcast.
    __ bind(Lresolved);
    // Get value klass in RobjKlass.
    __ load_klass(RobjKlass, R17_tos);