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* do not convert JMP into RJMP in assembler blocks, resolves issue #280208

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git-svn-id: trunk@30936 -
This commit is contained in:
florian 2015-05-30 16:17:24 +00:00
parent 9f4333d20a
commit aadcf9f6bc
1 changed files with 34 additions and 23 deletions
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57
compiler/avr/aasmcpu.pas
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@ -402,6 +402,7 @@ implementation
curtai : tai;
again : boolean;
l : tasmlabel;
inasmblock : Boolean;
begin
again:=true;
while again do
@ -436,31 +437,41 @@ implementation
end;
curtai:=tai(list.first);
inasmblock:=false;
while assigned(curtai) do
begin
if (curtai.typ=ait_instruction) and
(taicpu(curtai).opcode in [A_BRxx]) and
((taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset>64) or
(taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset<-63)
) then
begin
current_asmdata.getjumplabel(l);
list.insertafter(tai_label.create(l),curtai);
list.insertafter(taicpu.op_sym(A_JMP,taicpu(curtai).oper[0]^.ref^.symbol),curtai);
taicpu(curtai).oper[0]^.ref^.symbol:=l;
taicpu(curtai).condition:=inverse_cond(taicpu(curtai).condition);
again:=true;
end
{ replace JMP by RJMP? }
else if (curtai.typ=ait_instruction) and
(taicpu(curtai).opcode=A_JMP) and
(taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset<=2048) and
(taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset>=-2047) then
begin
taicpu(curtai).opcode:=A_RJMP;
again:=true;
end;
case curtai.typ of
ait_instruction:
case taicpu(curtai).opcode of
A_BRxx:
if (taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset>64) or
(taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset<-63) then
begin
current_asmdata.getjumplabel(l);
list.insertafter(tai_label.create(l),curtai);
list.insertafter(taicpu.op_sym(A_JMP,taicpu(curtai).oper[0]^.ref^.symbol),curtai);
taicpu(curtai).oper[0]^.ref^.symbol:=l;
taicpu(curtai).condition:=inverse_cond(taicpu(curtai).condition);
again:=true;
end;
A_JMP:
{ replace JMP by RJMP? ...
... but do not mess with asm block }
if not(inasmblock) and (taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset<=2048) and
(taicpu(curtai).InsOffset-taicpu(curtai).oper[0]^.ref^.symbol.offset>=-2047) then
begin
taicpu(curtai).opcode:=A_RJMP;
again:=true;
end;
end;
ait_marker:
case tai_marker(curtai).Kind of
mark_AsmBlockStart:
inasmblock:=true;
mark_AsmBlockEnd:
inasmblock:=false;
end;
end;
curtai:=tai(curtai.next);
end;
end;