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* support var/out managed types on the callee side in location_get_data_ref()

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git-svn-id: branches/jvmbackend@18604 -
This commit is contained in:
Jonas Maebe 2011-08-20 08:14:26 +00:00
parent 7e6261ff55
commit 887248af2d
1 changed files with 17 additions and 6 deletions
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23
compiler/jvm/hlcgcpu.pas
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@ -1452,7 +1452,7 @@ implementation
{ This routine is a combination of a generalised a_loadaddr_ref_reg()
that also works for addresses in registers (in case loadref is false)
and of a_load_ref_reg (in case loadref is true). It is used for
a) getting the address of managed types
a) getting the address of managed var/out parameters
b) getting to the actual data of value types that are passed by
reference by the compiler (and then get a local copy at the caller
side). Normally, depending on whether this reference is passed in a
@ -1470,32 +1470,43 @@ implementation
However, managed types are also implicit pointers in Pascal, so in that
case "taking the address" again consists of simply returning the
implicit pointer/current value.
implicit pointer/current value (in case of a var/out parameter, this
value is stored inside an array).
}
if not loadref then
begin
if not is_managed_type(def) then
internalerror(2011020601);
tmploc:=l;
end
else
begin
if not jvmimplicitpointertype(def) then
internalerror(2011020602);
begin
{ passed by reference in array of single element; l contains the
base address of the array }
location_reset_ref(tmploc,LOC_REFERENCE,OS_ADDR,4);
reference_reset_base(tmploc.reference,getaddressregister(list,java_jlobject),0,4);
tmploc.reference.arrayreftype:=art_indexconst;
tmploc.reference.indexoffset:=0;
a_load_loc_reg(list,java_jlobject,java_jlobject,l,tmploc.reference.base);
end
else
tmploc:=l;
end;
case l.loc of
case tmploc.loc of
LOC_REGISTER,
LOC_CREGISTER :
begin
{ the implicit pointer is in a register and has to be in a
reference -> create a reference and put it there }
tmploc:=l;
location_force_mem(list,tmploc,java_jlobject);
ref:=tmploc.reference;
end;
LOC_REFERENCE,
LOC_CREFERENCE :
begin
ref:=l.reference;
ref:=tmploc.reference;
end;
else
internalerror(2011020603);