*** old/src/cpu/sparc/vm/assembler_sparc.hpp	Tue Jan 11 14:54:09 2011
--- new/src/cpu/sparc/vm/assembler_sparc.hpp	Tue Jan 11 14:54:09 2011

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. 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.

*** 826,839 ****
--- 826,847 ----
    static bool is_simm(int x, int nbits) { return -( 1 << nbits-1 )  <= x   &&   x  <  ( 1 << nbits-1 ); }
  
    // test if -4096 <= x <= 4095
    static bool is_simm13(int x) { return is_simm(x, 13); }
  
+   bool is_in_wdisp_range(address a, address b, int nbits) {
+     intptr_t d = intptr_t(b) - intptr_t(a);
+     return is_simm(d, nbits + 2);
+   }
+ 
    // test if label is in simm16 range in words (wdisp16).
    bool is_in_wdisp16_range(Label& L) {
!     intptr_t d = intptr_t(pc()) - intptr_t(target(L));
      return is_simm(d, 18);
!     return is_in_wdisp_range(target(L), pc(), 16);
+   }
+   // test if the distance between two addresses fits in simm30 range in words
+   bool is_in_wdisp30_range(address a, address b) {
+     return is_in_wdisp_range(a, b, 30);
    }
  
    enum ASIs { // page 72, v9
      ASI_PRIMARY        = 0x80,
      ASI_PRIMARY_LITTLE = 0x88