def test_L1_bits_connection():
a = CaseConnectBitsConstToOutComp.DUT()
a.elaborate()
a.apply(StructuralRTLIRGenL1Pass(gen_connections(a)))
connections = a.get_metadata(StructuralRTLIRGenL1Pass.connections)
comp = sexp.CurComp(a, 's')
assert connections == \
[(sexp.ConstInstance(Bits32(0), 0), sexp.CurCompAttr(comp, 'out'))]
def test_L1_const_index():
a = CaseConnectConstToOutComp.DUT()
a.elaborate()
a.apply(StructuralRTLIRGenL1Pass(gen_connections(a)))
connections = a.get_metadata(StructuralRTLIRGenL1Pass.connections)
comp = sexp.CurComp(a, 's')
# The expression structure is removed and only the constant value
# is left in this node.
assert connections == \
[(sexp.ConstInstance(Bits32(a.const_[2]), 42), sexp.CurCompAttr(comp, 'out'))]
def test_L1_bits_connection():
class A(dsl.Component):
def construct(s):
s.out = dsl.OutPort(Bits32)
dsl.connect(s.out, Bits32(0))
a = A()
a.elaborate()
a.apply(StructuralRTLIRGenL1Pass(*gen_connections(a)))
ns = a._pass_structural_rtlir_gen
comp = sexp.CurComp(a, 's')
assert ns.connections == \
[(sexp.ConstInstance(Bits32(0), 0), sexp.CurCompAttr(comp, 'out'))]
def test_L1_const_index():
class A(dsl.Component):
def construct(s):
s.const = [42 for _ in range(5)]
s.out = dsl.OutPort(Bits32)
dsl.connect(s.const[2], s.out)
a = A()
a.elaborate()
a.apply(StructuralRTLIRGenL1Pass(*gen_connections(a)))
ns = a._pass_structural_rtlir_gen
comp = sexp.CurComp(a, 's')
# The expression structure is removed and only the constant value
# is left in this node.
assert ns.connections == \
[(sexp.ConstInstance(a.const[2], 42), sexp.CurCompAttr(comp, 'out'))]