def do_F2F(op, stack, state):
prev_type = state.esil["type"]
state.esil["type"] = FLOAT
val, size = pop_values(stack, state, 2)
fp_sort = fp_size_to_sort(size)
stack.append(z3.fpFPToFP(FPM, val, fp_sort))
state.esil["type"] = prev_type
def do_D2F(op, stack, state):
prev_type = state.esil["type"]
state.esil["type"] = FLOAT
val, = pop_values(stack, state)
state.esil["type"] = prev_type
size, = pop_values(stack, state)
fp_sort = fp_size_to_sort(size)
if val.sort() != fp_sort:
stack.append(z3.fpFPToFP(FPM, val, fp_sort))
else:
stack.append(val)
def do_F2D(op, stack, state):
prev_type = state.esil["type"]
state.esil["type"] = FLOAT
val, = pop_values(stack, state)
state.esil["type"] = prev_type
size, = pop_values(stack, state)
#val = z3.fpFPToFP(FPM, val, fp_sort)
if val.sort() != FSIZE:
#fp_sort = fp_size_to_sort(size)
stack.append(z3.fpFPToFP(FPM, val, FSIZE))
else:
stack.append(val)
def prepare_float(val, signext=False, size=SIZE) -> z3.FPRef:
size_class = fp_size_to_sort(size)
if z3.is_fp(val):
result = val
elif type(val) in (int, float):
result = z3.FPVal(float(val), size_class)
else:
bv_val = z3.simplify(prepare(val, signext, size))
if bv_val.decl().name() == "fp.to_ieee_bv":
result = bv_val.arg(0)
else:
result = z3.fpToFP(bv_val, size_class)
if result.sort() != size_class:
result = z3.fpFPToFP(result, size_class)
return result
