The R13B03 release.OTP_R13B03

1 files changed, 271 insertions, 0 deletions

diff --git a/lib/hipe/ppc/hipe_ppc_ra_finalise.erl b/lib/hipe/ppc/hipe_ppc_ra_finalise.erl
new file mode 100644
index 0000000000..53f8b739c2
--- /dev/null
+++ b/lib/hipe/ppc/hipe_ppc_ra_finalise.erl
@@ -0,0 +1,271 @@
+%% -*- 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_ppc_ra_finalise).
+-export([finalise/3]).
+-include("hipe_ppc.hrl").
+
+finalise(Defun, TempMap, FPMap0) ->
+  Code = hipe_ppc:defun_code(Defun),
+  {_, SpillLimit} = hipe_ppc:defun_var_range(Defun),
+  Map = mk_ra_map(TempMap, SpillLimit),
+  FPMap1 = mk_ra_map_fp(FPMap0, SpillLimit),
+  NewCode = ra_code(Code, Map, FPMap1, []),
+  Defun#defun{code=NewCode}.
+
+ra_code([I|Insns], Map, FPMap, Accum) ->
+  ra_code(Insns, Map, FPMap, [ra_insn(I, Map, FPMap) | Accum]);
+ra_code([], _Map, _FPMap, Accum) ->
+  lists:reverse(Accum).
+
+ra_insn(I, Map, FPMap) ->
+  case I of
+    #alu{} -> ra_alu(I, Map);
+    #cmp{} -> ra_cmp(I, Map);
+    #load{} -> ra_load(I, Map);
+    #loadx{} -> ra_loadx(I, Map);
+    #mfspr{} -> ra_mfspr(I, Map);
+    #mtcr{} -> ra_mtcr(I, Map);
+    #mtspr{} -> ra_mtspr(I, Map);
+    #pseudo_li{} -> ra_pseudo_li(I, Map);
+    #pseudo_move{} -> ra_pseudo_move(I, Map);
+    #pseudo_tailcall{} -> ra_pseudo_tailcall(I, Map);
+    #store{} -> ra_store(I, Map);
+    #storex{} -> ra_storex(I, Map);
+    #unary{} -> ra_unary(I, Map);
+    #lfd{} -> ra_lfd(I, Map, FPMap);
+    #lfdx{} -> ra_lfdx(I, Map, FPMap);
+    #stfd{} -> ra_stfd(I, Map, FPMap);
+    #stfdx{} -> ra_stfdx(I, Map, FPMap);
+    #fp_binary{} -> ra_fp_binary(I, FPMap);
+    #fp_unary{} -> ra_fp_unary(I, FPMap);
+    #pseudo_fmove{} -> ra_pseudo_fmove(I, FPMap);
+    _ -> I
+  end.
+
+ra_alu(I=#alu{dst=Dst,src1=Src1,src2=Src2}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  NewSrc1 = ra_temp(Src1, Map),
+  NewSrc2 = ra_temp_or_imm(Src2, Map),
+  I#alu{dst=NewDst,src1=NewSrc1,src2=NewSrc2}.
+
+ra_cmp(I=#cmp{src1=Src1,src2=Src2}, Map) ->
+  NewSrc1 = ra_temp(Src1, Map),
+  NewSrc2 = ra_temp_or_imm(Src2, Map),
+  I#cmp{src1=NewSrc1,src2=NewSrc2}.
+
+ra_load(I=#load{dst=Dst,base=Base}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  NewBase = ra_temp(Base, Map),
+  I#load{dst=NewDst,base=NewBase}.
+
+ra_loadx(I=#loadx{dst=Dst,base1=Base1,base2=Base2}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  NewBase1 = ra_temp(Base1, Map),
+  NewBase2 = ra_temp(Base2, Map),
+  I#loadx{dst=NewDst,base1=NewBase1,base2=NewBase2}.
+
+ra_mfspr(I=#mfspr{dst=Dst}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  I#mfspr{dst=NewDst}.
+
+ra_mtcr(I=#mtcr{src=Src}, Map) ->
+  NewSrc = ra_temp(Src, Map),
+  I#mtcr{src=NewSrc}.
+
+ra_mtspr(I=#mtspr{src=Src}, Map) ->
+  NewSrc = ra_temp(Src, Map),
+  I#mtspr{src=NewSrc}.
+
+ra_pseudo_li(I=#pseudo_li{dst=Dst}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  I#pseudo_li{dst=NewDst}.
+
+ra_pseudo_move(I=#pseudo_move{dst=Dst,src=Src}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  NewSrc = ra_temp(Src, Map),
+  I#pseudo_move{dst=NewDst,src=NewSrc}.
+
+ra_pseudo_tailcall(I=#pseudo_tailcall{stkargs=StkArgs}, Map) ->
+  NewStkArgs = ra_args(StkArgs, Map),
+  I#pseudo_tailcall{stkargs=NewStkArgs}.
+
+ra_store(I=#store{src=Src,base=Base}, Map) ->
+  NewSrc = ra_temp(Src, Map),
+  NewBase = ra_temp(Base, Map),
+  I#store{src=NewSrc,base=NewBase}.
+
+ra_storex(I=#storex{src=Src,base1=Base1,base2=Base2}, Map) ->
+  NewSrc = ra_temp(Src, Map),
+  NewBase1 = ra_temp(Base1, Map),
+  NewBase2 = ra_temp(Base2, Map),
+  I#storex{src=NewSrc,base1=NewBase1,base2=NewBase2}.
+
+ra_unary(I=#unary{dst=Dst,src=Src}, Map) ->
+  NewDst = ra_temp(Dst, Map),
+  NewSrc = ra_temp(Src, Map),
+  I#unary{dst=NewDst,src=NewSrc}.
+
+ra_lfd(I=#lfd{dst=Dst,base=Base}, Map, FPMap) ->
+  NewDst = ra_temp_fp(Dst, FPMap),
+  NewBase = ra_temp(Base, Map),
+  I#lfd{dst=NewDst,base=NewBase}.
+
+ra_lfdx(I=#lfdx{dst=Dst,base1=Base1,base2=Base2}, Map, FPMap) ->
+  NewDst = ra_temp_fp(Dst, FPMap),
+  NewBase1 = ra_temp(Base1, Map),
+  NewBase2 = ra_temp(Base2, Map),
+  I#lfdx{dst=NewDst,base1=NewBase1,base2=NewBase2}.
+
+ra_stfd(I=#stfd{src=Src,base=Base}, Map, FPMap) ->
+  NewSrc = ra_temp_fp(Src, FPMap),
+  NewBase = ra_temp(Base, Map),
+  I#stfd{src=NewSrc,base=NewBase}.
+
+ra_stfdx(I=#stfdx{src=Src,base1=Base1,base2=Base2}, Map, FPMap) ->
+  NewSrc = ra_temp_fp(Src, FPMap),
+  NewBase1 = ra_temp(Base1, Map),
+  NewBase2 = ra_temp(Base2, Map),
+  I#stfdx{src=NewSrc,base1=NewBase1,base2=NewBase2}.
+
+ra_fp_binary(I=#fp_binary{dst=Dst,src1=Src1,src2=Src2}, FPMap) ->
+  NewDst = ra_temp_fp(Dst, FPMap),
+  NewSrc1 = ra_temp_fp(Src1, FPMap),
+  NewSrc2 = ra_temp_fp(Src2, FPMap),
+  I#fp_binary{dst=NewDst,src1=NewSrc1,src2=NewSrc2}.
+
+ra_fp_unary(I=#fp_unary{dst=Dst,src=Src}, FPMap) ->
+  NewDst = ra_temp_fp(Dst, FPMap),
+  NewSrc = ra_temp_fp(Src, FPMap),
+  I#fp_unary{dst=NewDst,src=NewSrc}.
+
+ra_pseudo_fmove(I=#pseudo_fmove{dst=Dst,src=Src}, FPMap) ->
+  NewDst = ra_temp_fp(Dst, FPMap),
+  NewSrc = ra_temp_fp(Src, FPMap),
+  I#pseudo_fmove{dst=NewDst,src=NewSrc}.
+
+ra_args([Arg|Args], Map) ->
+  [ra_temp_or_imm(Arg, Map) | ra_args(Args, Map)];
+ra_args([], _) ->
+  [].
+
+ra_temp_or_imm(Arg, Map) ->
+  case hipe_ppc:is_temp(Arg) of
+    true ->
+      ra_temp(Arg, Map);
+    false ->
+      Arg
+  end.
+
+ra_temp_fp(Temp, FPMap) ->
+  Reg = hipe_ppc:temp_reg(Temp),
+  case hipe_ppc:temp_type(Temp) of
+    'double' ->
+      case hipe_ppc_registers:is_precoloured_fpr(Reg) of
+	true -> Temp;
+	_ -> ra_temp_common(Reg, Temp, FPMap)
+      end
+  end.
+
+ra_temp(Temp, Map) ->
+  Reg = hipe_ppc:temp_reg(Temp),
+  case hipe_ppc:temp_type(Temp) of
+    'double' ->
+      exit({?MODULE,ra_temp,Temp});
+    _ ->
+      case hipe_ppc_registers:is_precoloured_gpr(Reg) of
+	true -> Temp;
+	_ -> ra_temp_common(Reg, Temp, Map)
+      end
+  end.
+
+ra_temp_common(Reg, Temp, Map) ->
+  case gb_trees:lookup(Reg, Map) of
+    {value,NewReg} -> Temp#ppc_temp{reg=NewReg};
+    _ -> Temp
+  end.
+
+mk_ra_map(TempMap, SpillLimit) ->
+  %% Build a partial map from pseudo to reg or spill.
+  %% Spills are represented as pseudos with indices above SpillLimit.
+  %% (I'd prefer to use negative indices, but that breaks
+  %% hipe_ppc_registers:is_precoloured/1.)
+  %% The frame mapping proper is unchanged, since spills look just like
+  %% ordinary (un-allocated) pseudos.
+  lists:foldl(fun(MapLet, Map) ->
+		  {Key,Val} = conv_ra_maplet(MapLet, SpillLimit, is_precoloured_gpr),
+		  gb_trees:insert(Key, Val, Map)
+	      end,
+	      gb_trees:empty(),
+	      TempMap).
+
+conv_ra_maplet(MapLet = {From,To}, SpillLimit, IsPrecoloured) ->
+  %% From should be a pseudo, or a hard reg mapped to itself.
+  if is_integer(From), From =< SpillLimit ->
+      case hipe_ppc_registers:IsPrecoloured(From) of
+	false -> [];
+	_ ->
+	  case To of
+	    {reg, From} -> [];
+	    _ -> exit({?MODULE,conv_ra_maplet,MapLet})
+	  end
+      end;
+     true -> exit({?MODULE,conv_ra_maplet,MapLet})
+  end,
+  %% end of From check
+  case To of
+    {reg, NewReg} ->
+      %% NewReg should be a hard reg, or a pseudo mapped
+      %% to itself (formals are handled this way).
+      if is_integer(NewReg) ->
+	  case hipe_ppc_registers:IsPrecoloured(NewReg) of
+	    true -> [];
+	    _ -> if From =:= NewReg -> [];
+		    true ->
+		     exit({?MODULE,conv_ra_maplet,MapLet})
+		 end
+	  end;
+	 true -> exit({?MODULE,conv_ra_maplet,MapLet})
+      end,
+      %% end of NewReg check
+      {From, NewReg};
+    {spill, SpillIndex} ->
+      %% SpillIndex should be >= 0.
+      if is_integer(SpillIndex), SpillIndex >= 0 -> [];
+	 true -> exit({?MODULE,conv_ra_maplet,MapLet})
+      end,
+      %% end of SpillIndex check
+      ToTempNum = SpillLimit+SpillIndex+1,
+      MaxTempNum = hipe_gensym:get_var(ppc),
+      if MaxTempNum >= ToTempNum -> ok;
+	 true -> hipe_gensym:set_var(ppc, ToTempNum)
+      end,
+      {From, ToTempNum};
+    _ -> exit({?MODULE,conv_ra_maplet,MapLet})
+  end.
+
+mk_ra_map_fp(FPMap, SpillLimit) ->
+  lists:foldl(fun(MapLet, Map) ->
+		  {Key,Val} = conv_ra_maplet(MapLet, SpillLimit,
+					     is_precoloured_fpr),
+		  gb_trees:insert(Key, Val, Map)
+	      end,
+	      gb_trees:empty(),
+	      FPMap).