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_x86_specific_x87.erl | 164 ++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)
 create mode 100644 lib/hipe/regalloc/hipe_x86_specific_x87.erl

(limited to 'lib/hipe/regalloc/hipe_x86_specific_x87.erl')

diff --git a/lib/hipe/regalloc/hipe_x86_specific_x87.erl b/lib/hipe/regalloc/hipe_x86_specific_x87.erl
new file mode 100644
index 0000000000..7fd80b63d8
--- /dev/null
+++ b/lib/hipe/regalloc/hipe_x86_specific_x87.erl
@@ -0,0 +1,164 @@
+%% -*- erlang-indent-level: 2 -*-
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2006-2009. 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%
+%%
+
+-ifdef(HIPE_AMD64).
+-define(HIPE_X86_SPECIFIC_X87, hipe_amd64_specific_x87).
+-define(HIPE_X86_LIVENESS, hipe_amd64_liveness).
+-define(HIPE_X86_REGISTERS, hipe_amd64_registers).
+-define(HIPE_X86_DEFUSE, hipe_amd64_defuse).
+-else.
+-define(HIPE_X86_SPECIFIC_X87, hipe_x86_specific_x87).
+-define(HIPE_X86_LIVENESS, hipe_x86_liveness).
+-define(HIPE_X86_REGISTERS, hipe_x86_registers).
+-define(HIPE_X86_DEFUSE, hipe_x86_defuse).
+-endif.
+
+-module(?HIPE_X86_SPECIFIC_X87).
+-export([allocatable/0,
+	 is_precoloured/1,
+	 %% var_range/1,
+	 %% def_use/1,
+	 %% is_fixed/1,
+	 is_arg/1,
+	 %% non_alloc/1,
+	 new_spill_index/1,
+	 number_of_temporaries/1
+	]).
+
+%% The following exports are used as M:F(...) calls from other modules;
+%% e.g. hipe_x86_ra_ls.
+-export([analyze/1,
+	 bb/2,
+	 args/1,
+	 labels/1,
+	 livein/2,
+	 liveout/2,
+	 uses/1,
+	 defines/1,
+	 is_global/1,
+	 reg_nr/1,
+	 physical_name/1,
+	 breadthorder/1,
+	 postorder/1,
+ 	 reverse_postorder/1]).
+
+breadthorder(CFG) ->
+  hipe_x86_cfg:breadthorder(CFG).
+postorder(CFG) ->
+  hipe_x86_cfg:postorder(CFG).
+reverse_postorder(CFG) ->
+  hipe_x86_cfg:reverse_postorder(CFG).
+
+is_global(_) ->
+  false.
+
+-ifdef(notdef).
+is_fixed(_) ->
+  false.
+-endif.
+
+is_arg(_) ->
+  false.
+
+args(_) ->
+  [].
+
+-ifdef(notdef).
+non_alloc(_) ->
+  [].
+-endif.
+
+%% Liveness stuff
+
+analyze(CFG) ->
+  ?HIPE_X86_LIVENESS:analyze(CFG).
+
+livein(Liveness,L) ->
+  [X || X <- ?HIPE_X86_LIVENESS:livein(Liveness,L),
+ 	     hipe_x86:temp_is_allocatable(X),
+ 	     hipe_x86:temp_type(X) =:= 'double'].
+
+liveout(BB_in_out_liveness,Label) ->
+  [X || X <- ?HIPE_X86_LIVENESS:liveout(BB_in_out_liveness,Label),
+	     hipe_x86:temp_is_allocatable(X),
+	     hipe_x86:temp_type(X) =:= 'double'].
+
+%% Registers stuff
+
+allocatable() ->
+  ?HIPE_X86_REGISTERS:allocatable_x87().
+
+is_precoloured(Reg) ->
+  ?HIPE_X86_REGISTERS:is_precoloured_x87(Reg).
+
+physical_name(Reg) ->
+  Reg.
+
+%% CFG stuff
+
+labels(CFG) ->
+  hipe_x86_cfg:labels(CFG).
+
+-ifdef(notdef).
+var_range(_CFG) ->
+  {Min,Max} = hipe_gensym:var_range(x86),
+  %% io:format("Var_range: ~w\n",[{Min,Max}]),
+  {Min,Max}.
+-endif.
+
+number_of_temporaries(_CFG) ->
+  Highest_temporary = hipe_gensym:get_var(x86),
+  %% Since we can have temps from 0 to Max adjust by +1.
+  Highest_temporary + 1.
+
+bb(CFG,L) ->
+  hipe_x86_cfg:bb(CFG,L).
+
+%% X86 stuff
+
+-ifdef(notdef).
+def_use(Instruction) ->
+  {[X || X <- ?HIPE_X86_DEFUSE:insn_def(Instruction),
+	      hipe_x86:temp_is_allocatable(X),
+	      temp_is_double(X)],
+   [X || X <- ?HIPE_X86_DEFUSE:insn_use(Instruction),
+	      hipe_x86:temp_is_allocatable(X),
+	      temp_is_double(X)]
+  }.
+-endif.
+
+uses(I) ->
+  [X || X <- ?HIPE_X86_DEFUSE:insn_use(I),
+ 	     hipe_x86:temp_is_allocatable(X),
+ 	     temp_is_double(X)].
+
+defines(I) ->
+  [X || X <- ?HIPE_X86_DEFUSE:insn_def(I),
+ 	     hipe_x86:temp_is_allocatable(X),
+ 	     temp_is_double(X)].
+
+temp_is_double(Temp) ->
+  hipe_x86:temp_type(Temp) =:= 'double'.
+
+reg_nr(Reg) ->
+  hipe_x86:temp_reg(Reg).
+
+new_spill_index(SpillIndex) ->
+  SpillIndex+1.
-- 
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