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+ stubbed formal const/var/out support

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git-svn-id: branches/jvmbackend@18552 -
This commit is contained in:
Jonas Maebe 2011-08-20 08:09:45 +00:00
parent d7e78b9f95
commit 58d7a86252
1 changed files with 57 additions and 23 deletions
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80
compiler/jvm/njvmcal.pas
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@ -27,7 +27,7 @@ interface
uses
cgbase,
symdef,
symtype,symdef,
ncgcal;
type
@ -35,7 +35,10 @@ interface
tjvmcallparanode = class(tcgcallparanode)
protected
outcopybasereg: tregister;
procedure push_formal_para; override;
procedure push_copyout_para; override;
procedure load_arrayref_para(useparadef: tdef);
end;
{ tjvmcallnode }
@ -53,7 +56,7 @@ implementation
uses
verbose,globtype,
symconst,symtype,defutil,ncal,
symconst,defutil,ncal,
cgutils,tgobj,procinfo,
cpubase,aasmdata,aasmcpu,
hlcgobj,hlcgcpu,
@ -64,23 +67,11 @@ implementation
TJVMCALLPARANODE
*****************************************************************************}
procedure tjvmcallparanode.push_copyout_para;
procedure tjvmcallparanode.load_arrayref_para(useparadef: tdef);
var
mangledname: string;
primitivetype: boolean;
opc: tasmop;
arrayloc: tlocation;
arrayref: treference;
begin
{ create an array with one element of the parameter type }
thlcgjvm(hlcg).a_load_const_stack(current_asmdata.CurrAsmList,s32inttype,1,R_INTREGISTER);
mangledname:=jvmarrtype(left.resultdef,primitivetype);
if primitivetype then
opc:=a_newarray
else
opc:=a_anewarray;
{ doesn't change stack height: one int replaced by one reference }
current_asmdata.CurrAsmList.concat(taicpu.op_sym(opc,current_asmdata.RefAsmSymbol(mangledname)));
{ cannot be a regular array or record, because those are passed by
plain reference (since they are reference types at the Java level,
but not at the Pascal level) -> no special initialisation necessary }
@ -93,7 +84,7 @@ implementation
out-parameter; if it's an out-parameter the contents must be nil
but that's already ok, since the anewarray opcode takes care of that }
if (parasym.varspez<>vs_out) then
hlcg.a_load_loc_ref(current_asmdata.CurrAsmList,left.resultdef,left.resultdef,left.location,arrayref);
hlcg.a_load_loc_ref(current_asmdata.CurrAsmList,useparadef,useparadef,left.location,arrayref);
{ store the array reference into the parameter location (don't change
left.location, we may need it for copy-back after the call) }
@ -103,6 +94,37 @@ implementation
end;
procedure tjvmcallparanode.push_formal_para;
var
primitivetype: boolean;
begin
{ create an array with one element of JLObject }
thlcgjvm(hlcg).a_load_const_stack(current_asmdata.CurrAsmList,s32inttype,1,R_INTREGISTER);
{ left is either an object-derived type, or has been boxed into one }
current_asmdata.CurrAsmList.concat(taicpu.op_sym(a_anewarray,current_asmdata.RefAsmSymbol(jvmarrtype(java_jlobject,primitivetype))));
load_arrayref_para(java_jlobject);
end;
procedure tjvmcallparanode.push_copyout_para;
var
mangledname: string;
primitivetype: boolean;
opc: tasmop;
begin
{ create an array with one element of the parameter type }
thlcgjvm(hlcg).a_load_const_stack(current_asmdata.CurrAsmList,s32inttype,1,R_INTREGISTER);
mangledname:=jvmarrtype(left.resultdef,primitivetype);
if primitivetype then
opc:=a_newarray
else
opc:=a_anewarray;
{ doesn't change stack height: one int replaced by one reference }
current_asmdata.CurrAsmList.concat(taicpu.op_sym(opc,current_asmdata.RefAsmSymbol(mangledname)));
load_arrayref_para(left.resultdef);
end;
{*****************************************************************************
TJVMCALLNODE
*****************************************************************************}
@ -207,14 +229,26 @@ implementation
pararef.base:=ppn.outcopybasereg;
pararef.indexoffset:=0;
{ the value has to be copied back into persistent storage }
case ppn.left.location.loc of
LOC_REFERENCE:
hlcg.a_load_ref_ref(current_asmdata.CurrAsmList,ppn.left.resultdef,ppn.left.resultdef,pararef,ppn.left.location.reference);
LOC_CREGISTER:
hlcg.a_load_ref_reg(current_asmdata.CurrAsmList,ppn.left.resultdef,ppn.left.resultdef,pararef,ppn.left.location.register);
if (ppn.parasym.vardef.typ<>formaldef) then
begin
case ppn.left.location.loc of
LOC_REFERENCE:
hlcg.a_load_ref_ref(current_asmdata.CurrAsmList,ppn.left.resultdef,ppn.left.resultdef,pararef,ppn.left.location.reference);
LOC_CREGISTER:
hlcg.a_load_ref_reg(current_asmdata.CurrAsmList,ppn.left.resultdef,ppn.left.resultdef,pararef,ppn.left.location.register);
else
internalerror(2011051201);
end;
end
else
internalerror(2011051201);
end;
begin
{$ifndef nounsupported}
{ to do: extract value from boxed parameter or load
value back }
{$else}
internalerror(2011051901);
{$endif}
end;
end;
end;
ppn:=tjvmcallparanode(ppn.right);