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@@ -500,81 +500,6 @@ implementation
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set_unique(left);
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typecheckpass(left);
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-
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-{$ifdef old_append_str}
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- if is_ansistring(left.resultdef) then
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- begin
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- { fold <ansistring>:=<ansistring>+<char|shortstring|ansistring> }
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- if (right.nodetype=addn) and
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- left.isequal(tbinarynode(right).left) and
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- { don't fold multiple concatenations else we could get trouble
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- with multiple uses of s
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- }
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- (tbinarynode(right).left.nodetype<>addn) and
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- (tbinarynode(right).right.nodetype<>addn) then
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- begin
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- { don't do a typecheckpass(right), since then the addnode }
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- { may insert typeconversions that make this optimization }
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- { opportunity quite difficult to detect (JM) }
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- typecheckpass(tbinarynode(right).left);
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- typecheckpass(tbinarynode(right).right);
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- if (tbinarynode(right).right.nodetype=stringconstn) or
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- is_char(tbinarynode(right).right.resultdef) or
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- is_shortstring(tbinarynode(right).right.resultdef) or
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- is_ansistring(tbinarynode(right).right.resultdef) then
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- begin
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- { remove property flag so it'll not trigger an error }
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- exclude(left.flags,nf_isproperty);
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- { generate call to helper }
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- hp:=ccallparanode.create(tbinarynode(right).right,
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- ccallparanode.create(left,nil));
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- if is_char(tbinarynode(right).right.resultdef) then
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- result:=ccallnode.createintern('fpc_'+Tstringdef(left.resultdef).stringtypname+'_append_char',hp)
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- else if is_shortstring(tbinarynode(right).right.resultdef) then
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- result:=ccallnode.createintern('fpc_'+Tstringdef(left.resultdef).stringtypname+'_append_shortstring',hp)
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- else
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- result:=ccallnode.createintern('fpc_'+Tstringdef(left.resultdef).stringtypname+'_append_ansistring',hp);
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- tbinarynode(right).right:=nil;
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- left:=nil;
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- exit;
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- end;
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- end;
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- end
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- else
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-
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- if is_shortstring(left.resultdef) then
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- begin
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- { fold <shortstring>:=<shortstring>+<shortstring>,
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- <shortstring>+<char> is handled by an optimized node }
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- if (right.nodetype=addn) and
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- left.isequal(tbinarynode(right).left) and
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- { don't fold multiple concatenations else we could get trouble
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- with multiple uses of s }
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- (tbinarynode(right).left.nodetype<>addn) and
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- (tbinarynode(right).right.nodetype<>addn) then
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- begin
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- { don't do a typecheckpass(right), since then the addnode }
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- { may insert typeconversions that make this optimization }
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- { opportunity quite difficult to detect (JM) }
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- typecheckpass(tbinarynode(right).left);
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- typecheckpass(tbinarynode(right).right);
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- if is_shortstring(tbinarynode(right).right.resultdef) then
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- begin
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- { remove property flag so it'll not trigger an error }
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- exclude(left.flags,nf_isproperty);
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- { generate call to helper }
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- hp:=ccallparanode.create(tbinarynode(right).right,
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- ccallparanode.create(left,nil));
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- if is_shortstring(tbinarynode(right).right.resultdef) then
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- result:=ccallnode.createintern('fpc_shortstr_append_shortstr',hp);
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- tbinarynode(right).right:=nil;
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- left:=nil;
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- exit;
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- end;
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- end;
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- end;
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-{$endif old_append_str}
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-
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typecheckpass(right);
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set_varstate(right,vs_read,[vsf_must_be_valid]);
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set_varstate(left,vs_written,[]);
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@@ -849,34 +774,12 @@ implementation
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if (right.nodetype<>stringconstn) or
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(tstringconstnode(right).len<>0) then
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begin
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-{$ifdef old_append_str}
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- if (cs_opt_level1 in current_settings.optimizerswitches) and
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- (right.nodetype in [calln,blockn]) and
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- (left.nodetype = temprefn) and
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- is_shortstring(right.resultdef) and
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- not is_open_string(left.resultdef) and
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- (tstringdef(left.resultdef).len = 255) then
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- begin
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- { the blocknode case is handled in pass_generate_code at the temp }
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- { reference level (mainly for callparatemp) (JM) }
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- if (right.nodetype = calln) then
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- begin
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- tcallnode(right).funcretnode := left;
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- result := right;
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- end
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- else
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- exit;
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- end
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- else
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-{$endif old_append_str}
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- begin
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- hp:=ccallparanode.create
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- (right,
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- ccallparanode.create(cinlinenode.create
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- (in_high_x,false,left.getcopy),nil));
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- result:=ccallnode.createinternreturn('fpc_'+tstringdef(right.resultdef).stringtypname+'_to_shortstr',hp,left);
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- firstpass(result);
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- end;
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+ hp:=ccallparanode.create
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+ (right,
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+ ccallparanode.create(cinlinenode.create
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+ (in_high_x,false,left.getcopy),nil));
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+ result:=ccallnode.createinternreturn('fpc_'+tstringdef(right.resultdef).stringtypname+'_to_shortstr',hp,left);
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+ firstpass(result);
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left:=nil;
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right:=nil;
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exit;
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peter