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* Make trgobj.uses_registers method return True when registers of appropriate type are specified in list of used registers (after assembler blocks), but not used otherwise. This is a missing piece of r30011, enabling code generator to actually save/restore such registers. Resolves #28421.

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git-svn-id: trunk@32610 -
This commit is contained in:
sergei 2015-12-07 19:12:20 +00:00
parent 9d93c6f953
commit c0eafe38aa
1 changed files with 6 additions and 2 deletions
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8
compiler/rgobj.pas
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@ -227,6 +227,7 @@ unit rgobj;
constrained_moves : Tlinkedlist;
extended_backwards,
backwards_was_first : tbitset;
has_usedmarks: boolean;
{ Disposes of the reginfo array.}
procedure dispose_reginfo;
@ -522,7 +523,7 @@ unit rgobj;
function trgobj.uses_registers:boolean;
begin
result:=(maxreg>first_imaginary);
result:=(maxreg>first_imaginary) or has_usedmarks;
end;
@ -1733,7 +1734,10 @@ unit rgobj;
end;
ra_markused :
if (supreg<first_imaginary) then
include(used_in_proc,supreg);
begin
include(used_in_proc,supreg);
has_usedmarks:=true;
end;
end;
{ constraints needs always to be updated }
add_constraints(reg);