def generate(self):
# evaluate left operand
for line in self.loperand.generate():
yield line
if self.roperand is not None:
# save left operand to temporary variable
# NB: this is (probably) unnecessary of loperand is an ExprNode
yield MOVQ_RAX_R10
for line in self.tmp_var.generate():
yield line
yield assign('%r10', '%rax')
# evaluate right operand
for line in self.roperand.generate():
yield line
yield MOVQ_RAX_R11
# load temporary variable holding loperand's result
for line in self.tmp_var.generate():
yield line
yield MOVQ_RAX_R10
# assign (operator loperand roperand) to temporary variable
yield assign_op(
self.operator,
operand1_const=self.loperand.is_const,
operand2_const=self.roperand.is_const,
)
# always leave %rax pointing to the result
# vebose for clarity
for line in self.tmp_var.generate():
yield line
def generate(self):
yield "# assign to {0} the value of {1}".format(
self.var.name,
repr(self.expr))
# evaluate expression
for line in self.expr.generate():
yield line
yield MOVQ_RAX_R10
# load address of variable to be assigned
for line in self.var.generate(load_to='%rax'):
yield line
yield assign('%r10', '%rax', from_const=self.expr.is_const)
