paweld/fpc
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/fpc/source.git synced 2025-04-22 14:09:59 +02:00
Code Issues Packages Projects Releases Wiki Activity

* set inital costs of assigning a variable to a register to 120 for

Browse Source 
non-i386, because the used register must be store to memory at the
    start and loaded again at the end
This commit is contained in:
Jonas Maebe 2003-05-31 20:31:11 +00:00
parent dbf22a6cc9
commit f67e370ce1
1 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
compiler/rgobj.pas
View File

@ -1146,6 +1146,14 @@ unit rgobj;
begin
fillchar(reg_pushes_int,sizeof(reg_pushes_int),0);
fillchar(reg_pushes_other,sizeof(reg_pushes_other),0);
{ifndef i386}
{ all used registers will have to be saved at the start and restored }
{ at the end, but otoh regpara's do not have to be saved to memory }
{ at the start (there is a move from regpara to regvar most of the }
{ time though) -> set cost to 100+20 }
filldword(reg_pushes_int[firstsaveintreg],lastsaveintreg-firstsaveintreg+1,120);
filldword(reg_pushes_other[firstsavefpureg],ord(lastsavefpureg)-ord(firstsavefpureg)+1,120);
{endif not i386}
fillchar(is_reg_var_other,sizeof(is_reg_var_other),false);
is_reg_var_int:=[];
fillchar(regvar_loaded_other,sizeof(regvar_loaded_other),false);
@ -2051,7 +2059,12 @@ end.
{
$Log$
Revision 1.46 2003-05-30 18:55:21 jonas
Revision 1.47 2003-05-31 20:31:11 jonas
* set inital costs of assigning a variable to a register to 120 for
non-i386, because the used register must be store to memory at the
start and loaded again at the end
Revision 1.46 2003/05/30 18:55:21 jonas
* fixed several regvar related bugs for non-i386. make cycle with -Or now
works for ppc