def transform(self, tree, program_config):
subconfig, tuning_config = program_config
name_shape_map = {name: arg.shape for name, arg in subconfig.items()}
shapes = set(name_shape_map.values())
self.parent_cls.IndexOpToEncode(name_shape_map).visit(tree)
encode_funcs = []
c_tree = PyBasicConversions().visit(tree)
# print(dump(c_tree))
for shape in shapes:
encode_funcs.append(generate_encode_macro('encode'+CCompiler._shape_to_str(shape), shape))
components = []
for target, ispace in zip(self.target_names, c_tree.body):
shape = subconfig[target].shape
sub = fill_iteration_spaces(ispace, shape)
sub = self.parent_cls.IterationSpaceExpander(self.index_name, shape).visit(sub)
sub = self.parent_cls.BlockConverter().visit(sub)
components.append(sub)
c_func = FunctionDecl(
name=SymbolRef("kernel"),
params=[
SymbolRef(name=arg_name, sym_type=get_ctype(
arg if not isinstance(arg, np.ndarray) else arg.ravel()
), _restrict=True) for arg_name, arg in subconfig.items()
],
defn=components
)
TilingOptimization().optimize(c_func, self.tile_size)
includes = [
CppInclude("stdint.h")
]
out_file = CFile(body=includes + encode_funcs + [c_func])
return out_file
def visit_FunctionDef(self, node):
self.decls = {}
node.defn = [self.visit(s) for s in node.body]
new_params = []
for param in node.args.args:
if sys.version_info > (3, 0):
_id = param.arg
else:
_id = param.id
if _id == 'self':
continue
value = self.symbol_table[_id]
if isinstance(value, Array):
_type = np.ctypeslib.ndpointer(
value.dtype, value.ndim, value.shape)()
else:
_type = get_ctype(value)
new_params.append(
C.SymbolRef(_id, _type))
for name, value in self.decls.items():
if isinstance(value, Array):
type = np.ctypeslib.ndpointer(
value.dtype, value.ndim, value.shape)()
value = value.ctypes.data
new_params.append(
C.SymbolRef(name, type))
else:
if value is True:
value = 1
type = ct.c_int()
elif value is False:
value = 0
type = ct.c_int()
else:
type = get_ctype(value)
node.body.insert(
0,
C.Assign(C.SymbolRef(name, type),
C.Constant(value)))
node.args.args = new_params
return node
def visit_FunctionDef(self, node):
self.decls = {}
node.defn = [self.visit(s) for s in node.body]
new_params = []
for param in node.args.args:
if sys.version_info > (3, 0):
_id = param.arg
else:
_id = param.id
if _id == 'self':
continue
value = self.symbol_table[_id]
if isinstance(value, Array):
_type = np.ctypeslib.ndpointer(value.dtype, value.ndim,
value.shape)()
else:
_type = get_ctype(value)
new_params.append(C.SymbolRef(_id, _type))
for name, value in self.decls.items():
if isinstance(value, Array):
type = np.ctypeslib.ndpointer(value.dtype, value.ndim,
value.shape)()
value = value.ctypes.data
new_params.append(C.SymbolRef(name, type))
else:
if value is True:
value = 1
type = ct.c_int()
elif value is False:
value = 0
type = ct.c_int()
else:
type = get_ctype(value)
node.body.insert(
0, C.Assign(C.SymbolRef(name, type), C.Constant(value)))
node.args.args = new_params
return node
def visit_For(self, node):
if node.pragma == "ivdep":
block = []
loopvar = node.incr.arg
size = node.test.right
scalars = get_scalars_in_body(node)
refs = get_array_references_in_body(node)
ref_register_map = {}
scalar_register_map = {}
for index, ref in enumerate(refs):
ref_register_map[str(ref)] = (ref, "va{}".format(index))
for index, scalar in enumerate(scalars):
reg = "vs{}".format(index)
scalar_register_map[scalar] = reg
self.type_map[reg] = get_ctype(scalar)
body = []
block.append(StringTemplate(hwacha_configure_block.format(SIZE=size)))
node.incr = C.AddAssign(loopvar, C.SymbolRef("vector_length"))
self.defns.append(get_asm_body(node, scalar_register_map,
ref_register_map, self.type_map))
block.append(node)
body.append(StringTemplate(bounds_check.format(SIZE=size,
loopvar=loopvar)))
for scalar in scalars:
body.append(scalar_init(scalar))
body.append(StringTemplate(obtained_vector_length.format(SIZE=size,
loopvar=loopvar)))
block1 = ""
block2 = ""
index = 0
for _, info in ref_register_map.items():
ref, register = info
block1 += "\t \"vmsa {0}, %{1}\\n\"\n".format(register, index)
block2 += "\"r\"({0} + {1}),\n".format(
ref.left.name, ref.right.name)
index += 1
for scalar, register in scalar_register_map.items():
block1 += "\t \"vmss {0}, %{1}\\n\"\n".format(register, index)
block2 += "\"r\"({0}.i),\n".format(
"".join(number_dict[digit] for digit in str(scalar)))
index += 1
block1 += "\"fence\\n\"\n"
block1 += "\"vf 0(%{0})\\n\"\n".format(index)
block2 += "\"r\" (&__hwacha_body)"
body.append(StringTemplate(
"""
__asm__ volatile(
{block1}
:
: {block2}
: "memory"
);
""".format(block1=block1, block2=block2)))
node.body = body
block.append(
StringTemplate("""
__asm__ volatile(
"fence\\n"
);
"""))
return block
def visit_Constant(self, node):
self.type_map[node.value] = get_ctype(node.value)
return self.scalars[node.value]
def get_type(self, env=None):
return get_ctype(self.value)
def test_bad_type(self):
class Bad(object): pass
with self.assertRaises(ValueError):
ty = get_ctype(Bad())
def test_bool(self):
ty = get_ctype(True)
self.assertIsInstance(ty, ctypes.c_bool)
def test_char(self):
ty = get_ctype("c")
self.assertIsInstance(ty, ctypes.c_char)
def args_to_subconfig(self, args):
return {'arg_typesig': tuple(type(get_ctype(arg)) for arg in args)}
def test_int_array_1d(self):
ty = get_ctype(np.arange(10, dtype=np.int32))
tree = SymbolRef("i", ty)
self._check_code(tree, "int* i")
def test_int_array_2d(self):
ty = get_ctype(np.arange(10, dtype=np.float32).reshape(2, 5))
tree = SymbolRef("i", ty)
self._check_code(tree, "float** i")
def test_int_array(self):
ty = get_ctype(np.arange(10, dtype=np.int32))
self.assertIsInstance(ty, _ctypes.Array)
def test_int_array_1d(self):
ty = get_ctype(np.arange(10, dtype=np.int32))
tree = SymbolRef("i", ty)
self._check_code(tree, "int* i")
def test_int(self):
ty = get_ctype(123)
self.assertIsInstance(ty, ctypes.c_long)
def test_float(self):
ty = get_ctype(456.7)
self.assertIsInstance(ty, ctypes.c_double)
def get_type(self):
return get_ctype(self.value)
def test_none(self):
ty = get_ctype(None)
self.assertIsInstance(ty, type(None))
def args_to_subconfig(self, args):
return {'arg_type': type(get_ctype(args[0]))}
def test_string(self):
self.assertIsInstance(get_ctype("foo"), ctypes.c_char_p)
self.assertIsInstance(get_ctype(""), ctypes.c_char_p)
self.assertIsInstance(get_ctype("one two"), ctypes.c_char_p)
def test_int_array(self):
ty = get_ctype(np.arange(10, dtype=np.int32))
self.assertIsInstance(ty, _ctypes.Array)
def get_type(self):
return get_ctype(self.value)
def test_int_array_2d(self):
ty = get_ctype(np.arange(10, dtype=np.float32).reshape(2,5))
tree = SymbolRef("i", ty)
self._check_code(tree, "float** i")
def args_to_subconfig(self, args):
return {'arg_type': type(get_ctype(args[0]))}
def get_type(self, env=None):
return get_ctype(self.value)
