+ fpc_eh_return_data_regno() intrinsic to get the return register numbers

    for the Dwarf EH exception handler result

git-svn-id: branches/debug_eh@40070 -

compiler/aarch64/cpubase.pas

@@ -328,6 +328,7 @@ unit cpubase;
 
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
     function is_shifter_const(d: aint; size: tcgsize): boolean;
 
@@ -606,4 +607,13 @@ unit cpubase;
           end;
       end;
 
+
+  function eh_return_data_regno(nr: longint): longint;
+    begin
+      if (nr>=0) and (nr<2) then
+        result:=nr
+      else
+        result:=-1;
+    end;
+
 end.

compiler/arm/cpubase.pas

@@ -380,6 +380,8 @@ unit cpubase;
     function is_continuous_mask(d : aint;var lsb, width: byte) : boolean;
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
+
 
     function IsIT(op: TAsmOp) : boolean;
     function GetITLevels(op: TAsmOp) : longint;
@@ -660,6 +662,14 @@ unit cpubase;
         result:=regdwarf_table[findreg_by_number(r)];
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        if (nr>=0) and (nr<2) then
+          result:=nr
+        else
+          result:=-1;
+      end;
+
       { Low part of 64bit return value }
     function NR_FUNCTION_RESULT64_LOW_REG: tregister; {$ifdef USEINLINE}inline;{$endif USEINLINE}
     begin

compiler/avr/cpubase.pas

@@ -305,6 +305,8 @@ unit cpubase;
 
     function dwarf_reg(r:tregister):byte;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
+
 
     function is_calljmp(o:tasmop):boolean;{$ifdef USEINLINE}inline;{$endif USEINLINE}
 
@@ -432,6 +434,12 @@ unit cpubase;
         result:=regdwarf_table[findreg_by_number(r)];
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        result:=-1;
+      end;
+
+
     function is_calljmp(o:tasmop):boolean;{$ifdef USEINLINE}inline;{$endif USEINLINE}
       begin
         is_calljmp:= o in call_jmp_instructions;

compiler/compinnr.pas

@@ -129,6 +129,7 @@ type
      in_hi_qword         = 107,
      in_const_swap_qword = 108,
      in_prefetch_var     = 109,
+     in_const_eh_return_data_regno = 110,
 
 { FPU functions }
      in_trunc_real       = 120,

compiler/jvm/cpubase.pas

@@ -277,6 +277,8 @@ uses
     function std_regname(r:Tregister):string;
     function findreg_by_number(r:Tregister):tregisterindex;
 
+    function eh_return_data_regno(nr: longint): longint;
+
     { since we don't use tasmconds, don't call this routine
       (it will internalerror). We need it anyway to get aoptobj
       to compile (but it won't execute it).
@@ -340,6 +342,10 @@ uses
           result:=generic_regname(r);
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        result:=-1;
+      end;
 
     function inverse_cond(const c: TAsmCond): Tasmcond; {$ifdef USEINLINE}inline;{$endif USEINLINE}
       begin

compiler/m68k/cpubase.pas

@@ -370,6 +370,7 @@ unit cpubase;
     function conditions_equal(const c1, c2: TAsmCond): boolean; {$ifdef USEINLINE}inline;{$endif USEINLINE}
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
     function isvalue8bit(val: tcgint): boolean;
     function isvalue16bit(val: tcgint): boolean;
@@ -600,6 +601,11 @@ implementation
         result:=regdwarf_table[findreg_by_number(r)];
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        result:=-1;
+      end;
+
     { returns true if given value fits to an 8bit signed integer }
     function isvalue8bit(val: tcgint): boolean;
       begin

compiler/mips/cpubase.pas

@@ -271,6 +271,7 @@ unit cpubase;
     function std_regname(r:Tregister):string;
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
   implementation
 
@@ -417,5 +418,15 @@ unit cpubase;
         end;
         result:=regdwarf_table[findreg_by_number(r)];
       end;
+
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        if (nr>=0) and (nr<2) then
+          result:=nr+4
+        else
+          result:=-1;
+      end;
+
+
 begin
 end.

compiler/ninl.pas

@@ -126,7 +126,7 @@ implementation
       verbose,globals,systems,constexp,
       globtype,cutils,cclasses,fmodule,
       symconst,symdef,symsym,symcpu,symtable,paramgr,defcmp,defutil,symbase,
-      cpuinfo,
+      cpuinfo,cpubase,
       pass_1,
       ncal,ncon,ncnv,nadd,nld,nbas,nflw,nmem,nmat,nutils,
       nobjc,objcdef,
@@ -2294,7 +2294,14 @@ implementation
 {$else}
                      hp:=cpointerconstnode.create((vl2.uvalue shl 4)+vl.uvalue,voidpointertype);
 {$endif}
-                   end
+                   end;
+                 in_const_eh_return_data_regno:
+                   begin
+                     vl:=eh_return_data_regno(vl.svalue);
+                     if vl=-1 then
+                       CGMessagePos(left.fileinfo,type_e_range_check_error_bounds);
+                     result:=genintconstnode(vl);
+                   end;
                  else
                    internalerror(88);
                end;

compiler/pexpr.pas

@@ -916,6 +916,15 @@ implementation
             begin
               statement_syssym:=inline_insert;
             end;
+          in_const_eh_return_data_regno:
+            begin
+              consume(_LKLAMMER);
+              in_args:=true;
+              p1:=comp_expr([ef_accept_equal]);
+              p2:=geninlinenode(l,true,p1);
+              consume(_RKLAMMER);
+              statement_syssym:=p2;
+            end;
           else
             internalerror(15);
 

compiler/powerpc/cpubase.pas

@@ -398,6 +398,7 @@ uses
     function conditions_equal(const c1, c2: TAsmCond): boolean;
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
 implementation
 
@@ -575,4 +576,13 @@ implementation
       begin
         result:=regdwarf_table[findreg_by_number(r)];
       end;
+
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        if (nr>=0) and (nr<2) then
+          result:=nr+3
+        else
+          result:=-1;
+      end;
+
 end.

compiler/powerpc64/cpubase.pas

@@ -398,6 +398,7 @@ function inverse_cond(const c: TAsmCond): Tasmcond;
 function conditions_equal(const c1, c2: TAsmCond): boolean;
 function dwarf_reg(r:tregister):shortint;
 function dwarf_reg_no_error(r:tregister):shortint;
+function eh_return_data_regno(nr: longint): longint;
 
 implementation
 
@@ -564,10 +565,18 @@ begin
     internalerror(200603251);
 end;
 
-    function dwarf_reg_no_error(r:tregister):shortint;
-      begin
-        result:=regdwarf_table[findreg_by_number(r)];
-      end;
+function dwarf_reg_no_error(r:tregister):shortint;
+  begin
+    result:=regdwarf_table[findreg_by_number(r)];
+  end;
+
+function eh_return_data_regno(nr: longint): longint;
+begin
+  if (nr>=0) and (nr<2) then
+    result:=nr+3
+  else
+    result:=-1;
+end;
 
 end.
 

compiler/psystem.pas

@@ -110,6 +110,7 @@ implementation
         systemunit.insert(csyssym.create('Insert',in_insert_x_y_z));
         systemunit.insert(csyssym.create('Delete',in_delete_x_y_z));
         systemunit.insert(csyssym.create('GetTypeKind',in_gettypekind_x));
+        systemunit.insert(csyssym.create('fpc_eh_return_data_regno', in_const_eh_return_data_regno));
         systemunit.insert(cconstsym.create_ord('False',constord,0,pasbool1type));
         systemunit.insert(cconstsym.create_ord('True',constord,1,pasbool1type));
       end;

compiler/riscv32/cpubase.pas

@@ -330,6 +330,7 @@ uses
     function inverse_cond(const c: TAsmCond): Tasmcond; {$ifdef USEINLINE}inline;{$endif USEINLINE}
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
     function conditions_equal(const c1,c2: TAsmCond): boolean;
 
@@ -444,6 +445,14 @@ implementation
         result:=regdwarf_table[findreg_by_number(r)];
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        if (nr>=0) and (nr<4) then
+          result:=nr+10
+        else
+          result:=-1;
+      end;
+
     function conditions_equal(const c1, c2: TAsmCond): boolean;
       begin
         result:=c1=c2;

compiler/riscv64/cpubase.pas

@@ -345,6 +345,7 @@ const
     function inverse_cond(const c: TAsmCond): Tasmcond; {$ifdef USEINLINE}inline;{$endif USEINLINE}
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
     function conditions_equal(const c1,c2: TAsmCond): boolean;
 
@@ -459,6 +460,14 @@ implementation
         result:=regdwarf_table[findreg_by_number(r)];
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        if (nr>=0) and (nr<4) then
+          result:=nr+10
+        else
+          result:=-1;
+      end;
+
     function conditions_equal(const c1, c2: TAsmCond): boolean;
       begin
         result:=c1=c2;

compiler/sparcgen/cpubase.pas

@@ -345,7 +345,7 @@ uses
     function findreg_by_number(r:Tregister):tregisterindex;
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
-
+    function eh_return_data_regno(nr: longint): longint;
 
 implementation
 
@@ -536,6 +536,15 @@ implementation
         result:=regdwarf_table[findreg_by_number(r)];
       end;
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+        if (nr>=0) and (nr<2) then
+          result:=nr+24
+        else
+          result:=-1;
+      end;
+
+
     procedure TResFlags.Init(r : TRegister; f : TSparcFlags);
       begin
         FlagReg:=r;

compiler/x86/cpubase.pas

@@ -336,6 +336,7 @@ topsize2memsize: array[topsize] of integer =
     function std_regname(r:Tregister):string;
     function dwarf_reg(r:tregister):shortint;
     function dwarf_reg_no_error(r:tregister):shortint;
+    function eh_return_data_regno(nr: longint): longint;
 
     function inverse_cond(const c: TAsmCond): TAsmCond; {$ifdef USEINLINE}inline;{$endif USEINLINE}
     function conditions_equal(const c1, c2: TAsmCond): boolean; {$ifdef USEINLINE}inline;{$endif USEINLINE}
@@ -648,6 +649,17 @@ implementation
       end;
 
 
+    function eh_return_data_regno(nr: longint): longint;
+      begin
+         case nr of
+           0: result:=0;
+           1: result:=2;
+           else
+             result:=-1;
+         end;
+      end;
+
+
     function segment_regs_equal(r1, r2: tregister): boolean;
       begin
         if not is_segment_reg(r1) or not is_segment_reg(r2) then

rtl/inc/innr.inc

@@ -117,6 +117,7 @@ const
    fpc_in_hi_qword         = 107;
    fpc_in_const_swap_qword = 108;
    fpc_in_prefetch_var     = 109;
+   fpc_in_const_eh_return_data_regno = 110;
 
 { FPU functions }
    fpc_in_trunc_real       = 120;

rtl/inc/system.fpd

@@ -42,6 +42,7 @@ Procedure Dispose (P : TypedPointer; Des : TProcedure);
 Procedure Exclude (Var S : TSetType; E : TSetElement);
 Procedure Exit(Const X : TAnyType);
 Procedure Exit;
+Function FPC_EH_Return_Data_Regno(Nr: Longint): Longint;
 Function High (Arg: TypeOrVariable) : TOrdinal;
 Procedure Inc (Var X : TOrdinal);
 Procedure Inc (Var X : TOrdinal; Increment : TOrdinal);