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* fixed another bug in allocregbetween (introduced by the previous fix)

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("merged")
This commit is contained in:
Jonas Maebe 2000-11-17 15:22:04 +00:00
parent 95351bb8f7
commit bbd2e6cdaf
1 changed files with 21 additions and 10 deletions
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31
compiler/i386/daopt386.pas
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@ -1118,8 +1118,8 @@ Procedure AllocRegBetween(AsmL: PAasmOutput; Reg: TRegister; p1, p2: Pai);
{ allocates register Reg between (and including) instructions p1 and p2 }
{ the type of p1 and p2 must not be in SkipInstr }
var
hp: pai;
lastRemovedWasDealloc: boolean;
hp, start: pai;
lastRemovedWasDealloc, firstRemovedWasAlloc, first: boolean;
Begin
If not(reg in usableregs+[R_EDI,R_ESI]) or
not(assigned(p1)) Then
@ -1127,6 +1127,8 @@ Begin
{ current block (e.g. esi with self) }
exit;
lastRemovedWasDealloc := false;
firstRemovedWasAlloc := false;
first := true;
{$ifdef allocregdebug}
hp := new(pai_asm_comment,init(strpnew('allocating '+att_reg2str[reg]+
' from here...')));
@ -1135,12 +1137,7 @@ Begin
' till here...')));
insertllitem(asml,p2,p1^.next,hp);
{$endif allocregdebug}
if not Assigned(p1^.optInfo) or
not (reg in PPaiProp(p1^.OptInfo)^.UsedRegs) then
begin
hp := new(paiRegalloc,alloc(reg));
insertLLItem(asmL,p1^.previous,p1,hp);
end;
start := p1;
Repeat
If Assigned(p1^.OptInfo) Then
Include(PPaiProp(p1^.OptInfo)^.UsedRegs,Reg);
@ -1154,6 +1151,11 @@ Begin
(p1^.typ = ait_regalloc) Then
If (PaiRegAlloc(p1)^.Reg = Reg) Then
Begin
if first then
begin
firstRemovedWasAlloc := PaiRegAlloc(p1)^.allocation;
first := false;
end;
lastRemovedWasDealloc := not PaiRegAlloc(p1)^.allocation;
hp := Pai(p1^.Next);
AsmL^.Remove(p1);
@ -1174,7 +1176,12 @@ Begin
hp := new(paiRegalloc,dealloc(reg));
insertLLItem(asmL,p1,p1^.next,hp);
end;
end;
end;
if firstRemovedWasAlloc then
begin
hp := new(paiRegalloc,alloc(reg));
insertLLItem(asmL,start^.previous,start,hp);
end;
End;
function FindRegDealloc(reg: tregister; p: pai): boolean;
@ -2436,7 +2443,11 @@ End.
{
$Log$
Revision 1.6 2000-11-14 13:26:10 jonas
Revision 1.7 2000-11-17 15:22:04 jonas
* fixed another bug in allocregbetween (introduced by the previous fix)
("merged")
Revision 1.6 2000/11/14 13:26:10 jonas
* fixed bug in allocregbetween
Revision 1.5 2000/11/08 16:04:34 sg