* i386 and x86-64 share second_int_to_bool, moved to nx86cnv.pas

compiler/x86/nx86cnv.pas

@@ -0,0 +1,172 @@
+{
+    $Id$
+    Copyright (c) 1998-2002 by Florian Klaempfl
+
+    Generate for x86-64 and i386 assembler for type converting nodes
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ ****************************************************************************
+}
+unit nx86cnv;
+
+{$i fpcdefs.inc}
+
+interface
+
+    uses
+      node,ncgcnv,defutil,defcmp;
+
+    type
+       tx86typeconvnode = class(tcgtypeconvnode)
+         protected
+         { procedure second_int_to_int;override; }
+         { procedure second_string_to_string;override; }
+         { procedure second_cstring_to_pchar;override; }
+         { procedure second_string_to_chararray;override; }
+         { procedure second_array_to_pointer;override; }
+         { procedure second_pointer_to_array;override; }
+         { procedure second_chararray_to_string;override; }
+         { procedure second_char_to_string;override; }
+         { function first_int_to_real: tnode; override; }
+         { procedure second_int_to_real;override; }
+         { procedure second_real_to_real;override; }
+         { procedure second_cord_to_pointer;override; }
+         { procedure second_proc_to_procvar;override; }
+         { procedure second_bool_to_int;override; }
+           procedure second_int_to_bool;override;
+         { procedure second_load_smallset;override;  }
+         { procedure second_ansistring_to_pchar;override; }
+         { procedure second_pchar_to_string;override; }
+         { procedure second_class_to_intf;override;  }
+         { procedure second_char_to_char;override; }
+       end;
+
+
+implementation
+
+   uses
+      verbose,systems,globtype,
+      symconst,symdef,aasmbase,aasmtai,aasmcpu,
+      cginfo,cgbase,pass_2,
+      ncon,ncal,ncnv,
+      cpubase,
+      cgobj,cga,tgobj,rgobj,rgcpu,ncgutil;
+
+
+    procedure tx86typeconvnode.second_int_to_bool;
+      var
+        hregister : tregister;
+        pref      : treference;
+        resflags  : tresflags;
+        hlabel,oldtruelabel,oldfalselabel : tasmlabel;
+      begin
+         oldtruelabel:=truelabel;
+         oldfalselabel:=falselabel;
+         objectlibrary.getlabel(truelabel);
+         objectlibrary.getlabel(falselabel);
+         secondpass(left);
+         if codegenerror then
+          exit;
+         { byte(boolean) or word(wordbool) or longint(longbool) must }
+         { be accepted for var parameters                            }
+         if (nf_explicit in flags) and
+            (left.resulttype.def.size=resulttype.def.size) and
+            (left.location.loc in [LOC_REFERENCE,LOC_CREFERENCE,LOC_CREGISTER]) then
+           begin
+              location_copy(location,left.location);
+              truelabel:=oldtruelabel;
+              falselabel:=oldfalselabel;
+              exit;
+           end;
+
+         { Load left node into flag F_NE/F_E }
+         resflags:=F_NE;
+         location_release(exprasmlist,left.location);
+         case left.location.loc of
+            LOC_CREFERENCE,
+            LOC_REFERENCE :
+              begin
+{$ifdef i386}
+                if left.location.size in [OS_64,OS_S64] then
+                 begin
+                   hregister:=rg.getregisterint(exprasmlist,OS_INT);
+                   emit_ref_reg(A_MOV,S_L,left.location.reference,hregister);
+                   pref:=left.location.reference;
+                   inc(pref.offset,4);
+                   emit_ref_reg(A_OR,S_L,pref,hregister);
+                 end
+                else
+{$endif i386}
+                 begin
+                   location_force_reg(exprasmlist,left.location,left.location.size,true);
+                   cg.a_op_reg_reg(exprasmlist,OP_OR,left.location.size,left.location.register,left.location.register);
+                 end;
+              end;
+            LOC_FLAGS :
+              begin
+                resflags:=left.location.resflags;
+              end;
+            LOC_REGISTER,LOC_CREGISTER :
+              begin
+{$ifdef i386}
+                if left.location.size in [OS_64,OS_S64] then
+                 begin
+                 {$ifdef newra}
+                   hregister:=rg.getregisterint(exprasmlist,OS_32);
+                 {$else}
+                   hregister:=cg.get_scratch_reg_int(exprasmlist,OS_32);
+                 {$endif}
+                   cg.a_load_reg_reg(exprasmlist,OS_32,OS_32,left.location.registerlow,hregister);
+                   cg.a_op_reg_reg(exprasmlist,OP_OR,OS_32,left.location.registerhigh,hregister);
+                 {$ifdef newra}
+                   rg.ungetregisterint(exprasmlist,hregister);
+                 {$else}
+                   cg.free_scratch_reg(exprasmlist,hregister);
+                 {$endif}
+                 end
+                else
+{$endif i386}
+                 cg.a_op_reg_reg(exprasmlist,OP_OR,left.location.size,left.location.register,left.location.register);
+              end;
+            LOC_JUMP :
+              begin
+                hregister:=rg.getregisterint(exprasmlist,OS_INT);
+                objectlibrary.getlabel(hlabel);
+                cg.a_label(exprasmlist,truelabel);
+                cg.a_load_const_reg(exprasmlist,OS_INT,1,hregister);
+                cg.a_jmp_always(exprasmlist,hlabel);
+                cg.a_label(exprasmlist,falselabel);
+                cg.a_load_const_reg(exprasmlist,OS_INT,0,hregister);
+                cg.a_label(exprasmlist,hlabel);
+                cg.a_op_reg_reg(exprasmlist,OP_OR,OS_INT,hregister,hregister);
+              end;
+            else
+              internalerror(10062);
+         end;
+         { load flags to register }
+         location_reset(location,LOC_REGISTER,def_cgsize(resulttype.def));
+         location.register:=def_getreg(resulttype.def);
+         cg.g_flags2reg(exprasmlist,location.size,resflags,location.register);
+         truelabel:=oldtruelabel;
+         falselabel:=oldfalselabel;
+       end;
+
+end.
+{
+  $Log$
+  Revision 1.1  2003-05-01 08:02:42  florian
+    * i386 and x86-64 share second_int_to_bool, moved to nx86cnv.pas
+}