The R13B03 release.OTP_R13B03

1 files changed, 188 insertions, 0 deletions

diff --git a/lib/hipe/amd64/hipe_amd64_ra_sse2_postconditions.erl b/lib/hipe/amd64/hipe_amd64_ra_sse2_postconditions.erl
new file mode 100644
index 0000000000..9ed3d01a56
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+++ b/lib/hipe/amd64/hipe_amd64_ra_sse2_postconditions.erl
@@ -0,0 +1,188 @@
+%% -*- erlang-indent-level: 2 -*-
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2004-2009. 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_amd64_ra_sse2_postconditions).
+
+-export([check_and_rewrite/2]).
+
+-include("../x86/hipe_x86.hrl").
+-define(HIPE_INSTRUMENT_COMPILER, true).
+-include("../main/hipe.hrl").
+-define(count_temp(T), ?cons_counter(counter_mfa_mem_temps, T)).
+
+
+check_and_rewrite(AMD64Defun, Coloring) ->
+  %%io:format("Converting\n"),
+  TempMap = hipe_temp_map:cols2tuple(Coloring,hipe_amd64_specific_sse2),
+  %%io:format("Rewriting\n"),
+  #defun{code=Code0} = AMD64Defun,
+  {Code1, DidSpill} = do_insns(Code0, TempMap, [], false),
+  {AMD64Defun#defun{code=Code1, var_range={0, hipe_gensym:get_var(x86)}}, 
+   DidSpill}.
+
+do_insns([I|Insns], TempMap, Accum, DidSpill0) ->
+  {NewIs, DidSpill1} = do_insn(I, TempMap),
+  do_insns(Insns, TempMap, lists:reverse(NewIs, Accum), DidSpill0 or DidSpill1);
+do_insns([], _TempMap, Accum, DidSpill) ->
+  {lists:reverse(Accum), DidSpill}.
+
+do_insn(I, TempMap) ->	% Insn -> {Insn list, DidSpill}
+  case I of
+    #fmove{} ->
+      do_fmove(I, TempMap);
+    #fp_unop{} ->
+      do_fp_unop(I, TempMap);
+    #fp_binop{} ->
+      do_fp_binop(I, TempMap);
+    _ ->
+      %% All non sse2 ops
+      {[I], false}
+  end.
+
+%%% Fix an fp_binop.
+do_fp_binop(I, TempMap) ->
+  #fp_binop{src=Src,dst=Dst} = I,
+  case is_mem_opnd(Dst, TempMap) of
+    true ->
+      Tmp = clone(Dst),
+      {[#fmove{src=Dst, dst=Tmp},
+	I#fp_binop{src=Src,dst=Tmp},
+	#fmove{src=Tmp,dst=Dst}],
+       true};
+    false ->
+      {[I], false}
+  end.
+
+do_fp_unop(I, TempMap) ->
+  #fp_unop{arg=Arg} = I,
+  case is_mem_opnd(Arg, TempMap) of
+    true ->
+      Tmp = clone(Arg),
+      {[#fmove{src=Arg, dst=Tmp},
+	I#fp_unop{arg=Tmp},
+	#fmove{src=Tmp,dst=Arg}],
+       true};
+    false ->
+      {[I], false}
+  end.
+
+%%% Fix an fmove op.
+do_fmove(I, TempMap) ->
+  #fmove{src=Src,dst=Dst} = I,
+  case is_mem_opnd(Dst, TempMap) and is_mem_opnd(Src, TempMap) of
+    true ->
+      Tmp = clone(Src),
+      {[#fmove{src=Src, dst=Tmp},I#fmove{src=Tmp,dst=Dst}],
+       true};
+    false ->
+      {[I], false}
+  end.
+
+%%% Check if an operand denotes a memory cell (mem or pseudo).
+
+is_mem_opnd(Opnd, TempMap) ->
+  R =
+    case Opnd of
+      #x86_mem{} -> true;
+      #x86_temp{} -> 
+	Reg = hipe_x86:temp_reg(Opnd),
+	case hipe_x86:temp_is_allocatable(Opnd) of
+	  true -> 
+	    case tuple_size(TempMap) > Reg of 
+	      true ->
+		case 
+		  hipe_temp_map:is_spilled(Reg, TempMap) of
+		  true ->
+		    ?count_temp(Reg),
+		    true;
+		  false -> false
+		end;
+	      _ -> false
+	    end;
+	  false -> true
+	end;
+      _ -> false
+    end,
+  %% io:format("Op ~w mem: ~w\n",[Opnd,R]),
+  R.
+
+%%% Check if an operand is a spilled Temp.
+
+%%src_is_spilled(Src, TempMap) ->
+%%  case hipe_x86:is_temp(Src) of
+%%    true ->
+%%      Reg = hipe_x86:temp_reg(Src),
+%%      case hipe_x86:temp_is_allocatable(Src) of
+%%	true -> 
+%%	  case tuple_size(TempMap) > Reg of 
+%%	    true ->
+%%	      case hipe_temp_map:is_spilled(Reg, TempMap) of
+%%		true ->
+%%		  ?count_temp(Reg),
+%%		  true;
+%%		false ->
+%%		  false
+%%	      end;
+%%	    false ->
+%%	      false
+%%	  end;
+%%	false -> true
+%%      end;
+%%    false -> false
+%%  end.
+
+%% is_spilled(Temp, TempMap) ->
+%%   case hipe_x86:temp_is_allocatable(Temp) of
+%%     true ->
+%%       Reg = hipe_x86:temp_reg(Temp),
+%%       case tuple_size(TempMap) > Reg of 
+%%  	true ->
+%%  	  case hipe_temp_map:is_spilled(Reg, TempMap) of
+%%  	    true ->
+%%  	      ?count_temp(Reg),
+%%  	      true;
+%%  	    false ->
+%%  	      false
+%%  	  end;
+%%  	false ->
+%%  	  false
+%%       end;
+%%     false -> true
+%%   end.
+
+%%% Make Reg a clone of Dst (attach Dst's type to Reg).
+
+clone(Dst) ->
+  Type =
+    case Dst of
+      #x86_mem{} -> hipe_x86:mem_type(Dst);
+      #x86_temp{} -> hipe_x86:temp_type(Dst)
+    end,
+  hipe_x86:mk_new_temp(Type).
+
+%%% Make a certain reg into a clone of Dst
+
+%% clone2(Dst, Reg) ->
+%%   Type =
+%%     case Dst of
+%%       #x86_mem{} -> hipe_x86:mem_type(Dst);
+%%       #x86_temp{} -> hipe_x86:temp_type(Dst)
+%%     end,
+%%   hipe_x86:mk_temp(Reg,Type).