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* fixed a problem with case and negative labels if a linear list

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was generated (fixes tests\test\testcase)
This commit is contained in:
florian 2000-05-16 18:56:04 +00:00
parent 738d994e1a
commit 5c11706a27
1 changed files with 63 additions and 7 deletions
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60
compiler/cg386set.pas
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@ -532,6 +532,7 @@ implementation
jumptable_no_range : boolean;
{ where to put the jump table }
jumpsegment : paasmoutput;
min_label : longint;
procedure gentreejmp(p : pcaserecord);
@ -577,6 +578,51 @@ implementation
gentreejmp(p^.greater);
end;
procedure genlinearcmplist(hp : pcaserecord);
var
first : boolean;
last : longint;
procedure genitem(t : pcaserecord);
begin
if assigned(t^.less) then
genitem(t^.less);
if t^._low=t^._high then
begin
emit_const_reg(A_CMP,opsize,t^._low,hregister);
emitjmp(C_Z,t^.statement);
last:=t^._low;
end
else
begin
{ if there is no unused label between the last and the }
{ present label then the lower limit can be checked }
{ immediately. else check the range in between: }
if first or (t^._low-last>1) then
begin
emit_const_reg(A_CMP,opsize,t^._low,hregister);
emitjmp(jmp_le,elselabel);
end;
emit_const_reg(A_CMP,opsize,t^._high,hregister);
emitjmp(jmp_lee,t^.statement);
last:=t^._high;
end;
first:=false;
if assigned(t^.greater) then
genitem(t^.greater);
end;
begin
last:=0;
first:=true;
genitem(hp);
emitjmp(C_None,elselabel);
end;
procedure genlinearlist(hp : pcaserecord);
var
@ -645,12 +691,18 @@ implementation
genitem(t^.greater);
end;
begin
{ do we need to generate cmps? }
if with_sign and (min_label<0) then
genlinearcmplist(hp)
else
begin
last:=0;
first:=true;
genitem(hp);
emitjmp(C_None,elselabel);
end;
end;
procedure genjumptable(hp : pcaserecord;min_,max_ : longint);
@ -729,7 +781,7 @@ implementation
end;
var
lv,hv,min_label,max_label,labels : longint;
lv,hv,max_label,labels : longint;
max_linear_list : longint;
{$ifdef Delphi}
dist : cardinal;
@ -904,7 +956,11 @@ implementation
end.
{
$Log$
Revision 1.50 2000-05-11 09:56:20 pierre
Revision 1.51 2000-05-16 18:56:04 florian
* fixed a problem with case and negative labels if a linear list
was generated (fixes tests\test\testcase)
Revision 1.50 2000/05/11 09:56:20 pierre
* fixed several compare problems between longints and
const > $80000000 that are treated as int64 constanst
by Delphi reported by Kovacs Attila Zoltan