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* don't try to create cse on void resultdefs, resolves #16488

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git-svn-id: trunk@15363 -
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florian 2010-06-03 16:10:02 +00:00
parent 951c475e62
commit 84590d67b0
1 changed files with 14 additions and 0 deletions
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14
compiler/optcse.pas
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@ -123,6 +123,8 @@ unit optcse;
assigned(n.resultdef) and (tstoreddef(n.resultdef).is_intregable or tstoreddef(n.resultdef).is_fpuregable) and
{ is_int/fpuregable allows arrays and records to be in registers, cse cannot handle this }
not(n.resultdef.typ in [arraydef,recorddef]) and
{ same for voiddef }
not(is_void(n.resultdef)) and
{ adding tempref nodes is worthless but their complexity is probably <= 1 anyways }
not(n.nodetype in [temprefn]) and
@ -240,13 +242,21 @@ unit optcse;
def:=tstoreddef(tnode(lists.nodelist[i]).resultdef);
templist[i]:=ctempcreatenode.create_value(def,def.size,tt_persistent,
def.is_intregable or def.is_fpuregable,tnode(lists.nodelist[i]));
{ make debugging easier and set temp. location to the original location }
tnode(templist[i]).fileinfo:=tnode(lists.nodelist[i]).fileinfo;
addstatement(creates,tnode(templist[i]));
{ make debugging easier and set temp. location to the original location }
creates.fileinfo:=tnode(lists.nodelist[i]).fileinfo;
hp:=ttempcreatenode(templist[i]);
do_firstpass(tnode(hp));
templist[i]:=hp;
pnode(lists.locationlist[i])^:=ctemprefnode.create(ttempcreatenode(templist[i]));
{ make debugging easier and set temp. location to the original location }
pnode(lists.locationlist[i])^.fileinfo:=tnode(lists.nodelist[i]).fileinfo;
do_firstpass(pnode(lists.locationlist[i])^);
{$ifdef csedebug}
printnode(output,statements);
@ -262,6 +272,10 @@ unit optcse;
{$endif defined(csedebug) or defined(csestats)}
templist[i]:=templist[ptrint(lists.equalto[i])];
pnode(lists.locationlist[i])^:=ctemprefnode.create(ttempcreatenode(templist[ptrint(lists.equalto[i])]));
{ make debugging easier and set temp. location to the original location }
pnode(lists.locationlist[i])^.fileinfo:=tnode(lists.nodelist[i]).fileinfo;
do_firstpass(pnode(lists.locationlist[i])^);
end;
end;