The R13B03 release.OTP_R13B03

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/hipe/ppc/hipe_ppc_ra_ls.erl b/lib/hipe/ppc/hipe_ppc_ra_ls.erl
new file mode 100644
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+++ b/lib/hipe/ppc/hipe_ppc_ra_ls.erl
@@ -0,0 +1,56 @@
+%%% -*- erlang-indent-level: 2 -*-
+%%%
+%%% %CopyrightBegin%
+%%% 
+%%% Copyright Ericsson AB 2005-2009. All Rights Reserved.
+%%% 
+%%% The contents of this file are subject to the Erlang Public License,
+%%% Version 1.1, (the "License"); you may not use this file except in
+%%% compliance with the License. You should have received a copy of the
+%%% Erlang Public License along with this software. If not, it can be
+%%% retrieved online at http://www.erlang.org/.
+%%% 
+%%% Software distributed under the License is distributed on an "AS IS"
+%%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%%% the License for the specific language governing rights and limitations
+%%% under the License.
+%%% 
+%%% %CopyrightEnd%
+%%%
+%%% Linear Scan register allocator for PowerPC
+
+-module(hipe_ppc_ra_ls).
+-export([ra/3]).
+
+ra(Defun, SpillIndex, Options) ->
+  NewDefun = Defun, %% hipe_${ARCH}_ra_rename:rename(Defun,Options),
+  CFG = hipe_ppc_cfg:init(NewDefun),
+  SpillLimit = hipe_ppc_specific:number_of_temporaries(CFG),
+  alloc(NewDefun, SpillIndex, SpillLimit, Options).
+
+alloc(Defun, SpillIndex, SpillLimit, Options) ->
+  CFG = hipe_ppc_cfg:init(Defun),
+  {Coloring, _NewSpillIndex} =
+    regalloc(
+      CFG,
+      hipe_ppc_registers:allocatable_gpr()--
+      [hipe_ppc_registers:temp3(),
+       hipe_ppc_registers:temp2(),
+       hipe_ppc_registers:temp1()],
+      [hipe_ppc_cfg:start_label(CFG)],
+      SpillIndex, SpillLimit, Options,
+      hipe_ppc_specific),
+  {NewDefun, _DidSpill} =
+    hipe_ppc_ra_postconditions:check_and_rewrite(
+      Defun, Coloring, 'linearscan'),
+  TempMap = hipe_temp_map:cols2tuple(Coloring, hipe_ppc_specific),
+  {TempMap2,_NewSpillIndex2} =
+    hipe_spillmin:stackalloc(CFG, [], SpillIndex, Options,
+			     hipe_ppc_specific, TempMap),
+  Coloring2 =
+    hipe_spillmin:mapmerge(hipe_temp_map:to_substlist(TempMap), TempMap2),
+  {NewDefun, Coloring2}.
+
+regalloc(CFG, PhysRegs, Entrypoints, SpillIndex, DontSpill, Options, Target) ->
+  hipe_ls_regalloc:regalloc(
+    CFG, PhysRegs, Entrypoints, SpillIndex, DontSpill, Options, Target).