TL::Symbol LoweringVisitor::create_reduction_cleanup_function(OpenMP::Reduction* red, Nodecl::NodeclBase construct)
{
if (IS_C_LANGUAGE || IS_CXX_LANGUAGE)
{
internal_error("Currently only valid in Fortran", 0);
}
reduction_map_t::iterator it = _reduction_cleanup_map.find(red);
if (it != _reduction_cleanup_map.end())
{
return it->second;
}
std::string fun_name;
{
std::stringstream ss;
ss << "nanos_cleanup_" << red << "_" << simple_hash_str(construct.get_filename().c_str());
fun_name = ss.str();
}
Source src;
src << "SUBROUTINE " << fun_name << "(X)\n"
<< as_type(red->get_type()) << ", POINTER :: X(:)\n"
<< "DEALLOCATE(X)\n"
<< "END SUBROUTINE\n"
;
Nodecl::NodeclBase function_code = src.parse_global(construct);
TL::Symbol function_sym = ReferenceScope(construct).get_scope().get_symbol_from_name(fun_name);
ERROR_CONDITION(!function_sym.is_valid(), "Symbol %s not found", fun_name.c_str());
_reduction_cleanup_map[red] = function_sym;
Nodecl::Utils::append_to_enclosing_top_level_location(construct, function_code);
Nodecl::Utils::Fortran::append_used_modules(construct.retrieve_context(), function_sym.get_related_scope());
return function_sym;
}
static TL::Symbol create_initializer_function_fortran(
OpenMP::Reduction* red,
TL::Type reduction_type,
Nodecl::NodeclBase construct)
{
std::string fun_name;
{
std::stringstream ss;
ss << "nanos_ini_" << red << "_" << reduction_type.get_internal_type() << "_" << simple_hash_str(construct.get_filename().c_str());
fun_name = ss.str();
}
Nodecl::NodeclBase initializer = red->get_initializer().shallow_copy();
TL::Type omp_out_type = reduction_type,
omp_ori_type = reduction_type;
// These sources are only used in array reductions
TL::Source omp_out_extra_attributes,
extra_stuff_array_red;
if (reduction_type.is_array())
{
Source dims_descr;
TL::Type t = reduction_type;
int rank = 0;
if (t.is_fortran_array())
{
rank = t.fortran_rank();
}
dims_descr << "(";
omp_out_extra_attributes << ", POINTER, DIMENSION(";
int i;
for (i = 0; i < rank; i++)
{
if (i != 0)
{
dims_descr << ",";
omp_out_extra_attributes << ",";
}
dims_descr << "LBOUND(omp_orig, DIM = " << (rank - i) << ")"
<< ":"
<< "UBOUND(omp_orig, DIM = " << (rank - i) << ")"
;
omp_out_extra_attributes << ":";
t = t.array_element();
}
dims_descr << ")";
omp_out_extra_attributes << ")";
omp_out_type = t;
extra_stuff_array_red << "ALLOCATE(omp_out" << dims_descr <<")\n";
}
Source src;
src << "SUBROUTINE " << fun_name << "(omp_out, omp_orig)\n"
<< "IMPLICIT NONE\n"
<< as_type(omp_out_type) << omp_out_extra_attributes << " :: omp_out\n"
<< as_type(omp_ori_type) << " :: omp_orig\n"
<< extra_stuff_array_red
<< "omp_out = " << as_expression(initializer) << "\n"
<< "END SUBROUTINE " << fun_name << "\n"
;
TL::Scope global_scope = construct.retrieve_context().get_global_scope();
Nodecl::NodeclBase function_code = src.parse_global(global_scope);
TL::Symbol function_sym = global_scope.get_symbol_from_name(fun_name);
ERROR_CONDITION(!function_sym.is_valid(), "Symbol %s not found", fun_name.c_str());
// As the initializer function is needed during the instantiation of
// the task, this function should be inserted before the construct
Nodecl::Utils::prepend_to_enclosing_top_level_location(construct,
function_code);
return function_sym;
}
static TL::Symbol create_initializer_function_c(
OpenMP::Reduction* red,
TL::Type reduction_type,
Nodecl::NodeclBase construct)
{
std::string fun_name;
{
std::stringstream ss;
ss << "nanos_ini_" << red << "_" << reduction_type.get_internal_type() << "_" << simple_hash_str(construct.get_filename().c_str());
fun_name = ss.str();
}
Nodecl::NodeclBase function_body;
Source src;
src << "void " << fun_name << "("
<< as_type(reduction_type.no_ref().get_lvalue_reference_to()) << " omp_priv,"
<< as_type(reduction_type.no_ref().get_lvalue_reference_to()) << " omp_orig)"
<< "{"
<< statement_placeholder(function_body)
<< "}"
;
Nodecl::NodeclBase function_code = src.parse_global(construct.retrieve_context().get_global_scope());
TL::Scope inside_function = ReferenceScope(function_body).get_scope();
TL::Symbol param_omp_priv = inside_function.get_symbol_from_name("omp_priv");
ERROR_CONDITION(!param_omp_priv.is_valid(), "Symbol omp_priv not found", 0);
TL::Symbol param_omp_orig = inside_function.get_symbol_from_name("omp_orig");
ERROR_CONDITION(!param_omp_orig.is_valid(), "Symbol omp_orig not found", 0);
TL::Symbol function_sym = inside_function.get_symbol_from_name(fun_name);
ERROR_CONDITION(!function_sym.is_valid(), "Symbol %s not found", fun_name.c_str());
Nodecl::NodeclBase initializer = red->get_initializer().shallow_copy();
if (initializer.is<Nodecl::StructuredValue>())
{
Nodecl::StructuredValue structured_value = initializer.as<Nodecl::StructuredValue>();
if (structured_value.get_form().is<Nodecl::StructuredValueBracedImplicit>())
{
structured_value.set_form(Nodecl::StructuredValueCompoundLiteral::make());
}
}
Nodecl::Utils::SimpleSymbolMap translation_map;
translation_map.add_map(red->get_omp_priv(), param_omp_priv);
translation_map.add_map(red->get_omp_orig(), param_omp_orig);
Nodecl::NodeclBase new_initializer = Nodecl::Utils::deep_copy(initializer, inside_function, translation_map);
if (red->get_is_initialization())
{
// The original initializer was something like 'omp_priv = expr1', but the
// new_initializer only represents the lhs expression (in our example, expr1).
// For this reason we create manually an assignment expression.
Nodecl::NodeclBase param_omp_priv_ref = Nodecl::Symbol::make(param_omp_priv);
param_omp_priv_ref.set_type(param_omp_priv.get_type());
function_body.replace(
Nodecl::List::make(
Nodecl::ExpressionStatement::make(
Nodecl::Assignment::make(
param_omp_priv_ref,
new_initializer,
param_omp_priv_ref.get_type().no_ref())
)));
}
else
{
function_body.replace(
Nodecl::List::make(Nodecl::ExpressionStatement::make(new_initializer)));
}
// As the initializer function is needed during the instantiation of
// the task, this function should be inserted before the construct
Nodecl::Utils::prepend_to_enclosing_top_level_location(construct,
function_code);
return function_sym;
}
TL::Symbol LoweringVisitor::create_basic_reduction_function_fortran(OpenMP::Reduction* red, Nodecl::NodeclBase construct)
{
reduction_map_t::iterator it = _basic_reduction_map_openmp.find(red);
if (it != _basic_reduction_map_openmp.end())
{
return it->second;
}
std::string fun_name;
{
std::stringstream ss;
ss << "nanos_red_" << red << "_" << simple_hash_str(construct.get_filename().c_str());
fun_name = ss.str();
}
Nodecl::NodeclBase function_body;
Source src;
src << "SUBROUTINE " << fun_name << "(omp_out, omp_in, num_scalars)\n"
<< "IMPLICIT NONE\n"
<< as_type(red->get_type()) << " :: omp_out(num_scalars)\n"
<< as_type(red->get_type()) << " :: omp_in(num_scalars)\n"
<< "INTEGER, VALUE :: num_scalars\n"
<< "INTEGER :: I\n"
<< statement_placeholder(function_body) << "\n"
<< "END SUBROUTINE " << fun_name << "\n";
;
Nodecl::NodeclBase function_code = src.parse_global(construct);
TL::Scope inside_function = ReferenceScope(function_body).get_scope();
TL::Symbol param_omp_in = inside_function.get_symbol_from_name("omp_in");
ERROR_CONDITION(!param_omp_in.is_valid(), "Symbol omp_in not found", 0);
TL::Symbol param_omp_out = inside_function.get_symbol_from_name("omp_out");
ERROR_CONDITION(!param_omp_out.is_valid(), "Symbol omp_out not found", 0);
TL::Symbol function_sym = inside_function.get_symbol_from_name(fun_name);
ERROR_CONDITION(!function_sym.is_valid(), "Symbol %s not found", fun_name.c_str());
TL::Symbol index = inside_function.get_symbol_from_name("i");
ERROR_CONDITION(!index.is_valid(), "Symbol %s not found", "i");
TL::Symbol num_scalars = inside_function.get_symbol_from_name("num_scalars");
ERROR_CONDITION(!num_scalars.is_valid(), "Symbol %s not found", "num_scalars");
Nodecl::NodeclBase num_scalars_ref = Nodecl::Symbol::make(num_scalars);
num_scalars_ref.set_type(num_scalars.get_type().no_ref().get_lvalue_reference_to());
Nodecl::Symbol nodecl_index = Nodecl::Symbol::make(index);
nodecl_index.set_type(index.get_type().get_lvalue_reference_to());
Nodecl::NodeclBase loop_header = Nodecl::RangeLoopControl::make(
nodecl_index,
const_value_to_nodecl(const_value_get_signed_int(1)),
num_scalars_ref,
Nodecl::NodeclBase::null());
Nodecl::NodeclBase expanded_combiner =
red->get_combiner().shallow_copy();
BasicReductionExpandVisitor expander_visitor(
red->get_omp_in(),
param_omp_in,
red->get_omp_out(),
param_omp_out,
index);
expander_visitor.walk(expanded_combiner);
function_body.replace(
Nodecl::ForStatement::make(loop_header,
Nodecl::List::make(
Nodecl::ExpressionStatement::make(
expanded_combiner)),
Nodecl::NodeclBase::null()));
_basic_reduction_map_openmp[red] = function_sym;
if (IS_FORTRAN_LANGUAGE)
{
Nodecl::Utils::Fortran::append_used_modules(construct.retrieve_context(),
function_sym.get_related_scope());
}
Nodecl::Utils::append_to_enclosing_top_level_location(construct, function_code);
return function_sym;
}
