def generate_CALL(self, op):
calldescr = op.descr
assert isinstance(calldescr, CallDescr)
ty_function_ptr = self.cpu.get_calldescr_ty_function_ptr(calldescr)
v = op.args[0]
if isinstance(v, Const):
func = self.cpu._make_const(v.getint(), ty_function_ptr)
else:
func = self.getintarg(v)
func = llvm_rffi.LLVMBuildIntToPtr(self.builder,
func,
ty_function_ptr, "")
nb_args = len(op.args) - 1
arglist = lltype.malloc(rffi.CArray(llvm_rffi.LLVMValueRef), nb_args,
flavor='raw')
for i in range(nb_args):
v = op.args[1 + i]
index = calldescr.args_indices[i]
getarg = self.cpu.getarg_by_index[index]
value_ref = getarg(self, v)
arglist[i] = value_ref
res = llvm_rffi.LLVMBuildCall(self.builder,
func, arglist, nb_args, "")
lltype.free(arglist, flavor='raw')
if op.result is not None:
assert calldescr.res_index >= 0
self.vars[op.result] = res
def getptrarg(self, v):
try:
value_ref = self.vars[v]
except KeyError:
return self.cpu._make_const(v.getaddr(self.cpu),
self.cpu.ty_char_ptr)
else:
ty = llvm_rffi.LLVMTypeOf(value_ref)
if ty == self.cpu.ty_int:
value_ref = llvm_rffi.LLVMBuildIntToPtr(
self.builder, value_ref, self.cpu.ty_char_ptr, "")
else:
assert (ty != self.cpu.ty_bit and ty != self.cpu.ty_char
and ty != self.cpu.ty_unichar)
return value_ref
def generate_CAST_INT_TO_PTR(self, op):
res = llvm_rffi.LLVMBuildIntToPtr(self.builder,
self.getintarg(op.args[0]),
self.cpu.ty_char_ptr, "")
self.vars[op.result] = res