void FCSFCall( void ) {
//==================
// Call a statement function.
sym_id sf;
sym_id sf_arg;
sym_id tmp;
cg_type sf_type;
cg_name arg_list;
cg_name value;
cg_cmplx z;
obj_ptr curr_obj;
sf = GetPtr();
arg_list = NULL;
value = NULL;
sf_type = 0;
for(;;) {
sf_arg = GetPtr();
if( sf_arg == NULL ) break;
if( sf_arg->u.ns.u1.s.typ == FT_CHAR ) {
value = Concat( 1, CGFEName( sf_arg, TY_CHAR ) );
} else {
sf_type = F772CGType( sf_arg );
if( TypeCmplx( sf_arg->u.ns.u1.s.typ ) ) {
XPopCmplx( &z, sf_type );
sf_type = CmplxBaseType( sf_type );
value = ImagPtr( SymAddr( sf_arg ), sf_type );
CGTrash( CGAssign( value, z.imagpart, sf_type ) );
value = CGFEName( sf_arg, sf_type );
value = CGAssign( value, z.realpart, sf_type );
} else {
value = CGFEName( sf_arg, sf_type );
value = CGAssign( value, XPopValue( sf_type ), sf_type );
}
}
if( arg_list == NULL ) {
arg_list = value;
} else {
arg_list = CGBinary( O_COMMA, arg_list, value, TY_DEFAULT );
}
}
if( sf->u.ns.u1.s.typ == FT_CHAR ) {
tmp = GetPtr();
value = CGUnary( O_POINTS, CGFEName( tmp, TY_CHAR ), TY_CHAR );
value = CGAssign( CGFEName( sf, TY_CHAR ), value, TY_CHAR );
if( arg_list == NULL ) {
arg_list = value;
} else {
arg_list = CGBinary( O_COMMA, arg_list, value, TY_DEFAULT );
}
value = CGFEName( tmp, TY_CHAR );
} else {
sf_type = F772CGType( sf );
if( !(OZOpts & OZOPT_O_INLINE) ) {
value = CGUnary( O_POINTS, CGFEName( sf, sf_type ), sf_type );
}
}
if( OZOpts & OZOPT_O_INLINE ) {
if( arg_list != NULL ) {
CGTrash( arg_list );
}
curr_obj = FCodeSeek( sf->u.ns.si.sf.u.sequence );
GetObjPtr();
FCodeSequence();
FCodeSeek( curr_obj );
if( sf->u.ns.u1.s.typ == FT_CHAR ) {
CGTrash( XPop() );
XPush( value );
} else if( TypeCmplx( sf->u.ns.u1.s.typ ) ) {
XPopCmplx( &z, sf_type );
sf_type = CmplxBaseType( sf_type );
XPush( TmpVal( MkTmp( z.imagpart, sf_type ), sf_type ) );
XPush( TmpVal( MkTmp( z.realpart, sf_type ), sf_type ) );
} else {
XPush( TmpVal( MkTmp( XPopValue( sf_type ), sf_type ), sf_type ) );
}
} else {
value = CGWarp( arg_list, GetLabel( sf->u.ns.si.sf.u.location ), value );
// consider: y = f( a, f( b, c, d ), e )
// make sure that inner reference to f gets evaluated before we assign
// arguments for outer reference
value = CGEval( value );
if( TypeCmplx( sf->u.ns.u1.s.typ ) ) {
SplitCmplx( TmpPtr( MkTmp( value, sf_type ), sf_type ), sf_type );
} else {
XPush( value );
}
RefStmtFunc( sf );
}
}
void CmplxAssign( sym_id sym, cg_type dst_typ, cg_type src_typ ) {
//===========================================================================
// Do complex assignment.
cg_type typ;
cg_name dest;
cg_name dest_1;
cg_name dest_2;
cg_cmplx z;
uint_16 flags;
temp_handle tr;
temp_handle ti;
flags = sym->u.ns.flags;
dest = NULL;
if( (flags & SY_CLASS) == SY_SUBPROGRAM ) {
// assigning to statement function
if( (OZOpts & OZOPT_O_INLINE) == 0 ) {
dest = SymAddr( sym );
}
} else {
// check for structure type before checking for array
// Consider: A(1).X = A(2).X
// where A is an array of structures containing complex field X
if( sym->u.ns.u1.s.typ == FT_STRUCTURE ) {
dest = XPop();
GetU16(); // ignore structure information
} else if( flags & SY_SUBSCRIPTED ) {
dest = XPop();
} else {
dest = SymAddr( sym );
}
}
typ = CmplxBaseType( dst_typ );
if( ( src_typ != TY_COMPLEX ) && ( src_typ != TY_DCOMPLEX ) &&
( src_typ != TY_XCOMPLEX ) ) {
z.realpart = XPopValue( src_typ );
z.imagpart = CGInteger( 0, typ );
} else {
XPopCmplx( &z, src_typ );
z.imagpart = CGEval( z.imagpart );
}
z.realpart = CGEval( z.realpart );
// Before assigning the real and imaginary parts, force evaluation of each.
// Consider: Z = Z * Z
// The above expression will be evaluated as follows.
// z.r = z.r*z.r - z.i*z.i
// z.i = z.r*z.i + z.r*z.i
// In the expression that evaluates the imaginary part, the value of "z.r"
// must be the original value and not the new value.
if( ((flags & SY_CLASS) == SY_SUBPROGRAM) && (OZOpts & OZOPT_O_INLINE) ) {
XPush( z.imagpart );
XPush( z.realpart );
return;
}
// Code to avoid the criss cross problem
// i.e. z = complx(imag(z), real(z))
// or similar problems due to overwriting of one part with the other
// before accessing it.
// This should not affect efficiency (for optimized code) very much
// because the temps will not be used when they are not required
tr = CGTemp( typ );
ti = CGTemp( typ );
CGDone( CGAssign( CGTempName( tr, typ ), z.realpart, typ ) );
CGDone( CGAssign( CGTempName( ti, typ ), z.imagpart, typ ) );
CloneCGName( dest, &dest_1, &dest_2 );
XPush( CGAssign( ImagPtr( dest_2, typ ),
CGUnary( O_POINTS, CGTempName( ti, typ ), typ ), typ ) );
XPush( CGAssign( dest_1, CGUnary( O_POINTS, CGTempName( tr, typ ), typ ),
typ ) );
}
