The R13B03 release.OTP_R13B03

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/hipe/sparc/hipe_sparc_ra_ls.erl b/lib/hipe/sparc/hipe_sparc_ra_ls.erl
new file mode 100644
index 0000000000..cdb15e738c
--- /dev/null
+++ b/lib/hipe/sparc/hipe_sparc_ra_ls.erl
@@ -0,0 +1,56 @@
+%% -*- erlang-indent-level: 2 -*-
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2008-2009. 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 SPARC
+
+-module(hipe_sparc_ra_ls).
+-export([ra/3]).
+
+ra(Defun, SpillIndex, Options) ->
+  NewDefun = Defun, %% hipe_${ARCH}_ra_rename:rename(Defun,Options),
+  CFG = hipe_sparc_cfg:init(NewDefun),
+  SpillLimit = hipe_sparc_specific:number_of_temporaries(CFG),
+  alloc(NewDefun, SpillIndex, SpillLimit, Options).
+
+alloc(Defun, SpillIndex, SpillLimit, Options) ->
+  CFG = hipe_sparc_cfg:init(Defun),
+  {Coloring, _NewSpillIndex} =
+    regalloc(
+      CFG,
+      hipe_sparc_registers:allocatable_gpr()--
+      [hipe_sparc_registers:temp3(),
+       hipe_sparc_registers:temp2(),
+       hipe_sparc_registers:temp1()],
+      [hipe_sparc_cfg:start_label(CFG)],
+      SpillIndex, SpillLimit, Options,
+      hipe_sparc_specific),
+  {NewDefun, _DidSpill} =
+    hipe_sparc_ra_postconditions:check_and_rewrite(
+      Defun, Coloring, 'linearscan'),
+  TempMap = hipe_temp_map:cols2tuple(Coloring, hipe_sparc_specific),
+  {TempMap2,_NewSpillIndex2} =
+    hipe_spillmin:stackalloc(CFG, [], SpillIndex, Options,
+			     hipe_sparc_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).