sbcl-1.1.15 released

Dear all,

Happy New Year!  I have just uploaded the sbcl-1.1.15 release to
sourceforge; the release notes are appended to the end of this message.

The major new feature in this release is the merge of Alexandra
Barchunova's implementation of an iterative colouring/spilling register
allocator.  Unfortunately, this implementation has uncovered some latent
bugs in the compiler backends; I believe that they have been found and
fixed on x86(-64) and ppc platforms, but many still remain on the other
backends (sparc, mips, alpha) and so on those platforms this release
will not build.  I hope that this situation will not persist for too
long, and that a release in the near future will restore support for
those platforms.

Those checking the gpg signature on the release will find signatures
made by a new key.  This is expected; please see
<http://christophe.rhodes.io/notes/blog/posts/2013/new_year_new_gpg_key/>,
along with the associated transition document.

Best wishes,

Christophe

changes in sbcl-1.1.15 relative to sbcl-1.1.14:
  * new feature: the iterative spilling/coloring register allocator developed
    by Alexandra Barchunova during Google Summer of Code 2013 is now merged
    in.  By default, it only activates for functions that optimize with
    (speed 3) and (> speed compilation-speed), but setting
    sb-regalloc:*register-allocation-method* to :iterative forces its
    execution.  The previous behaviour can be obtained by instead setting that
    variable to :greedy.  Thanks again to Google for their support, and, more
    crucially, to Alexandra Barchunova for her hard work.
  * optimization: make-array with known element-type and unknown dimensions is
    much faster.
  * optimization: make-array with unknown element-type is faster as well.
    (lp#1004501)
  * enhancement: sb-ext:save-lisp-and-die on Windows now accepts
    :application-type argument, which can be :console or :gui. :gui allows
    having GUI applications without an automatically appearing console window.
  * enhancement: reduced conservativism on GENCGC platforms:
    conservative roots must be valid-looking tagged pointers or point
    within a code object, not merely point to within the allocated part
    of a page, in order to pin a page.
  * enhancement: support for "Mac Roman" external format.
  * enhancement: encapsulation of named generic functions now happens without
    altering the identity of the function bound to the name.
  * bug fix: Windows applications without the console window no longer misbehave.
    (patch by Wilfredo Velazquez, lp#1256034).
  * bug fix: modular arithmetic optimizations do not stumble on dead branches
    with bad constants. (reported by Douglas Katzman)
  * bug fix: CLISP can be used again as a cross-compilation host.
    (Thanks to Vasily Postnicov, lp#1261451)
  * bug fix: run-program crashed with :directory nil. (lp#1265077)


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