def _store_away_exception(self):
# etype, evalue: ty_char_ptr
etype = llvm_rffi.LLVMBuildLoad(self.builder, self.cpu.const_exc_type,
"")
llvm_rffi.LLVMBuildStore(self.builder, self.cpu.const_null_charptr,
self.cpu.const_exc_type)
llvm_rffi.LLVMBuildStore(self.builder, etype,
self.cpu.const_backup_exc_type)
evalue = llvm_rffi.LLVMBuildLoad(self.builder,
self.cpu.const_exc_value, "")
llvm_rffi.LLVMBuildStore(self.builder, self.cpu.const_null_charptr,
self.cpu.const_exc_value)
llvm_rffi.LLVMBuildStore(self.builder, evalue,
self.cpu.const_backup_exc_value)
def generate_NEW_WITH_VTABLE(self, op):
sizedescr = self.cpu.class_sizes[op.args[0].getint()]
res = self._generate_new(self.cpu._make_const_int(sizedescr.size))
self.vars[op.result] = res
loc = self._generate_field_gep(op.result, self.cpu.vtable_descr)
value_ref = self.getintarg(op.args[0])
llvm_rffi.LLVMBuildStore(self.builder, value_ref, loc, "")
def generate_SETARRAYITEM_GC(self, op):
loc = self._generate_array_gep(op)
arraydescr = op.descr
assert isinstance(arraydescr, ArrayDescr)
getarg = self.cpu.getarg_by_index[arraydescr.itemsize_index]
value_ref = getarg(self, op.args[2])
llvm_rffi.LLVMBuildStore(self.builder, value_ref, loc, "")
def generate_SETFIELD_GC(self, op):
fielddescr = op.descr
loc = self._generate_field_gep(op.args[0], fielddescr)
assert isinstance(fielddescr, FieldDescr)
getarg = self.cpu.getarg_by_index[fielddescr.size_index]
value_ref = getarg(self, op.args[1])
llvm_rffi.LLVMBuildStore(self.builder, value_ref, loc, "")
def _generate_fail(self, args, index):
self.cpu._ensure_out_args(len(args))
for i in range(len(args)):
v = args[i]
if v.type == INT:
value_ref = self.getintarg(v)
ty = self.cpu.ty_int_ptr
else:
value_ref = self.getptrarg(v)
ty = self.cpu.ty_char_ptr_ptr
llvmconstptr = self.cpu._make_const(self.cpu.in_out_args[i], ty)
llvm_rffi.LLVMBuildStore(self.builder, value_ref, llvmconstptr)
llvm_rffi.LLVMBuildRet(self.builder, self.cpu._make_const_int(index))
def _generate_new_array(self, op, ty_array, const_item_size,
const_index_array, const_index_length):
length_ref = self.getintarg(op.args[0])
if const_item_size == self.cpu.const_one:
arraysize_ref = length_ref
else:
arraysize_ref = llvm_rffi.LLVMBuildMul(self.builder, length_ref,
const_item_size, "")
size_ref = llvm_rffi.LLVMBuildAdd(self.builder, const_index_array,
arraysize_ref, "")
res = self._generate_new(size_ref)
loc = self._generate_len_gep(res, ty_array, const_index_length)
llvm_rffi.LLVMBuildStore(self.builder, length_ref, loc, "")
self.vars[op.result] = res
def generate_UNICODESETITEM(self, op):
loc = self._generate_gep(op, self.cpu.ty_unicode_ptr,
self.cpu.const_unicode_index_array)
value_ref = self.getunichararg(op.args[2])
llvm_rffi.LLVMBuildStore(self.builder, value_ref, loc, "")
def generate_STRSETITEM(self, op):
loc = self._generate_gep(op, self.cpu.ty_string_ptr,
self.cpu.const_string_index_array)
value_ref = self.getchararg(op.args[2])
llvm_rffi.LLVMBuildStore(self.builder, value_ref, loc, "")