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* x86: only add mm capable consts to register candidate list, this is better

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than checking when they are assigned
This commit is contained in:
florian 2021-09-12 20:28:40 +02:00
parent 5762e687a3
commit 5e9eb673f8
1 changed files with 7 additions and 5 deletions
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12
compiler/optcse.pas
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@ -604,7 +604,13 @@ unit optcse;
begin
result:=fen_true;
consts:=pconstentries(arg);
if n.nodetype=realconstn then
if (n.nodetype=realconstn)
{$ifdef x86}
{ x87 consts would end up in memory, so loading them in temps. makes no sense }
and use_vectorfpu(n.resultdef)
{$endif x86}
then
begin
found:=false;
i:=0;
@ -735,10 +741,6 @@ unit optcse;
if { if there is a call, we need most likely to save/restore a register }
((constentries[i].weight>3) or
((constentries[i].weight>1) and not(pi_do_call in current_procinfo.flags)))
{$ifdef x86}
{ x87 consts would end up in memory, so loading them in temps. makes no sense }
and use_vectorfpu(constentries[i].valuenode.resultdef)
{$endif x86}
then
begin
old_current_filepos:=current_filepos;