[Jikesrvm-researchers] Jikes RVM 2.4.3 available

[David P G. <gr...@us...>]

Jikes RVM version 2.4.3 is now available for download from sourceforge.net 
at
http://prdownloads.sourceforge.net/jikesrvm/jikesrvm-2.4.3.tar.gz?download 
 
 
*Jikes RVM 2.4.3 Release Notes (released February 24, 2006)
** Highlights
*** The recommended version of GNU classpath for Jikes RVM 2.4.3 is 0.20.
   Classpath 0.19 and 0.18 are likely to still work, but have not been 
tested.
   Support for all version of GNU classpath prior to 0.18 has been 
removed.

*** Simple GC sanity checking tool added to MMTk. Contact: Daniel 
Frampton.

*** The RVM bootimage is now generated into two separate files, one for
    code and one for data.  These files are mapped separately into 
distinct
    address ranges.  As a result of this change, instead of defining
    BOOTIMAGE_LOAD_ADDRESS in your config file, you must define
    BOOTIMAGE_DATA_ADDRESS and BOOTIMAGE_CODE_ADDRESS.
    All the default configu files (rvm/config/*) have been updated,
    but if you have local copies of these files, you will need to update 
them.

*** Loop Versioning optimization in the opt compiler
    contributed by Ian Rogers and Jisheng Zhao.
    Loop versioning replicates loop bodies and removes from one of
    those loop bodies runtime exceptions that can be explicitly
    tested. The phase runs as an SSA optimization so as only to
    consider true dependencies. To capture the loop structure the
    phase uses an annotated LST node. The annotations capture
    information about the initial and terminal loop iterator values,
    as well as the loop iterator instructions. This phase is currently
    disabled by default until we can fix bugs in the optimizing compiler
    that it exposes.

*** The optimizing compiler's Local CSE pass now exploits commutativity,
    patch contributed by Bernardo Pastorelli.

** Bug fixes
*** defect 1240267: remove FIXED_JTOC option
*** defect 1411486: Bug in IA32 BT (Bit Test) instruction