From 84adefa331c4159d432d22840663c38f155cd4c1 Mon Sep 17 00:00:00 2001
From: Erlang/OTP <otp@erlang.org>
Date: Fri, 20 Nov 2009 14:54:40 +0000
Subject: The R13B03 release.

---
 lib/hipe/regalloc/hipe_sparc_specific.erl | 168 ++++++++++++++++++++++++++++++
 1 file changed, 168 insertions(+)
 create mode 100644 lib/hipe/regalloc/hipe_sparc_specific.erl

(limited to 'lib/hipe/regalloc/hipe_sparc_specific.erl')

diff --git a/lib/hipe/regalloc/hipe_sparc_specific.erl b/lib/hipe/regalloc/hipe_sparc_specific.erl
new file mode 100644
index 0000000000..7b8c62e802
--- /dev/null
+++ b/lib/hipe/regalloc/hipe_sparc_specific.erl
@@ -0,0 +1,168 @@
+%% -*- erlang-indent-level: 2 -*-
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2001-2009. 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%
+%%
+
+-module(hipe_sparc_specific).
+
+%% for hipe_coalescing_regalloc:
+-export([number_of_temporaries/1
+	 ,analyze/1
+	 ,labels/1
+	 ,all_precoloured/0
+	 ,bb/2
+	 ,liveout/2
+	 ,reg_nr/1
+	 ,def_use/1
+	 ,is_move/1
+	 ,is_precoloured/1
+	 ,var_range/1
+	 ,allocatable/0
+	 ,non_alloc/1
+	 ,physical_name/1
+	 ,reverse_postorder/1
+	 ,livein/2
+	 ,uses/1
+	 ,defines/1
+	]).
+
+%% for hipe_graph_coloring_regalloc:
+-export([is_fixed/1]).
+
+%% for hipe_ls_regalloc:
+-export([args/1, is_arg/1, is_global/1, new_spill_index/1]).
+-export([breadthorder/1, postorder/1]).
+
+%% callbacks for hipe_regalloc_loop
+-export([defun_to_cfg/1,
+	 check_and_rewrite/2]).
+
+defun_to_cfg(Defun) ->
+  hipe_sparc_cfg:init(Defun).
+
+check_and_rewrite(Defun, Coloring) ->
+  hipe_sparc_ra_postconditions:check_and_rewrite(Defun, Coloring, 'normal').
+
+reverse_postorder(CFG) ->
+  hipe_sparc_cfg:reverse_postorder(CFG).
+
+non_alloc(CFG) ->
+  non_alloc(hipe_sparc_registers:nr_args(), hipe_sparc_cfg:params(CFG)).
+
+%% same as hipe_sparc_frame:fix_formals/2
+non_alloc(0, Rest) -> Rest;
+non_alloc(N, [_|Rest]) -> non_alloc(N-1, Rest);
+non_alloc(_, []) -> [].
+
+%% Liveness stuff
+
+analyze(CFG) ->
+  hipe_sparc_liveness_gpr:analyse(CFG).
+
+livein(Liveness,L) ->
+  [X || X <- hipe_sparc_liveness_gpr:livein(Liveness,L),
+	hipe_sparc:temp_is_allocatable(X)].
+
+liveout(BB_in_out_liveness,Label) ->
+  [X || X <- hipe_sparc_liveness_gpr:liveout(BB_in_out_liveness,Label),
+	hipe_sparc:temp_is_allocatable(X)].
+
+%% Registers stuff
+
+allocatable() ->
+  hipe_sparc_registers:allocatable_gpr().
+
+all_precoloured() ->
+  hipe_sparc_registers:all_precoloured().
+
+is_precoloured(Reg) ->
+  hipe_sparc_registers:is_precoloured_gpr(Reg).
+
+is_fixed(R) ->
+  hipe_sparc_registers:is_fixed(R).
+
+physical_name(Reg) ->
+  Reg.
+
+%% CFG stuff
+
+labels(CFG) ->
+  hipe_sparc_cfg:labels(CFG).
+
+var_range(_CFG) ->
+  hipe_gensym:var_range(sparc).
+
+number_of_temporaries(_CFG) ->
+  Highest_temporary = hipe_gensym:get_var(sparc),
+  %% Since we can have temps from 0 to Max adjust by +1.
+  Highest_temporary + 1.
+
+bb(CFG,L) ->
+  hipe_sparc_cfg:bb(CFG,L).
+
+%% SPARC stuff
+
+def_use(Instruction) ->
+  {defines(Instruction), uses(Instruction)}.
+
+uses(I) ->
+  [X || X <- hipe_sparc_defuse:insn_use_gpr(I),
+	hipe_sparc:temp_is_allocatable(X)].
+
+defines(I) ->
+  [X || X <- hipe_sparc_defuse:insn_def_gpr(I),
+	hipe_sparc:temp_is_allocatable(X)].
+
+is_move(Instruction) ->
+  case hipe_sparc:is_pseudo_move(Instruction) of
+    true ->
+      Dst = hipe_sparc:pseudo_move_dst(Instruction),
+      case hipe_sparc:temp_is_allocatable(Dst) of
+	false -> false;
+	_ ->
+	  Src = hipe_sparc:pseudo_move_src(Instruction),
+	  hipe_sparc:temp_is_allocatable(Src)
+      end;
+    false -> false
+  end.
+
+reg_nr(Reg) ->
+  hipe_sparc:temp_reg(Reg).
+
+%%% Linear Scan stuff
+
+new_spill_index(SpillIndex) when is_integer(SpillIndex) ->
+  SpillIndex+1.
+
+breadthorder(CFG) ->
+  hipe_sparc_cfg:breadthorder(CFG).
+
+postorder(CFG) ->
+  hipe_sparc_cfg:postorder(CFG).
+
+is_global(R) ->
+  R =:= hipe_sparc_registers:temp1() orelse
+  R =:= hipe_sparc_registers:temp2() orelse
+  R =:= hipe_sparc_registers:temp3() orelse
+  hipe_sparc_registers:is_fixed(R).
+
+is_arg(R) ->
+  hipe_sparc_registers:is_arg(R).
+
+args(CFG) ->
+  hipe_sparc_registers:args(hipe_sparc_cfg:arity(CFG)).
-- 
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