def generate_GUARD_EXCEPTION(self, op):
v = op.args[0]
assert isinstance(v, Const)
# etype, expectedtype: ty_char_ptr
expectedtype = self.cpu._make_const(v.getint(), self.cpu.ty_char_ptr)
etype = llvm_rffi.LLVMBuildLoad(self.builder, self.cpu.const_exc_type,
"")
eisequal = llvm_rffi.LLVMBuildICmp(self.builder,
llvm_rffi.Predicate.EQ, etype,
expectedtype, "")
self._generate_guard(op, eisequal, False, exc=True)
self.vars[op.result] = llvm_rffi.LLVMBuildLoad(
self.builder, self.cpu.const_exc_value, "")
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_GUARD_CLASS(self, op):
loc = self._generate_field_gep(op.args[0], self.cpu.fielddescr_vtable)
cls = llvm_rffi.LLVMBuildLoad(self.builder, loc, "")
equal = llvm_rffi.LLVMBuildICmp(self.builder,
llvm_rffi.Predicate.EQ,
cls,
self.getintarg(op.args[1]), "")
self._generate_guard(op, equal, False)
def generate_GUARD_NO_EXCEPTION(self, op):
# etype: ty_char_ptr
etype = llvm_rffi.LLVMBuildLoad(self.builder, self.cpu.const_exc_type,
"")
eisnull = llvm_rffi.LLVMBuildICmp(self.builder, llvm_rffi.Predicate.EQ,
etype, self.cpu.const_null_charptr,
"")
self._generate_guard(op, eisnull, False, exc=True)
def generate_initial_arguments_load(self):
loop = self.loop
func = self.compiling_func
bb_entry = llvm_rffi.LLVMAppendBasicBlock(func, "entry")
llvm_rffi.LLVMPositionBuilderAtEnd(self.builder, bb_entry)
self.cpu._ensure_in_args(len(loop.inputargs))
self.phi_incoming_blocks = [bb_entry]
self.phi_incoming_values = []
for i in range(len(loop.inputargs)):
ty = self.cpu._get_pointer_type(loop.inputargs[i])
llvmconstptr = self.cpu._make_const(self.cpu.in_out_args[i], ty)
res = llvm_rffi.LLVMBuildLoad(self.builder, llvmconstptr, "")
self.phi_incoming_values.append([res])
self.bb_start = llvm_rffi.LLVMAppendBasicBlock(func, "")
llvm_rffi.LLVMBuildBr(self.builder, self.bb_start)
#
llvm_rffi.LLVMPositionBuilderAtEnd(self.builder, self.bb_start)
for v in loop.inputargs:
ty = self.cpu._get_var_type(v)
phi = llvm_rffi.LLVMBuildPhi(self.builder, ty, "")
self.vars[v] = phi
def generate_UNICODEGETITEM(self, op):
loc = self._generate_gep(op, self.cpu.ty_unicode_ptr,
self.cpu.const_unicode_index_array)
self.vars[op.result] = llvm_rffi.LLVMBuildLoad(self.builder, loc, "")
def generate_STRGETITEM(self, op):
loc = self._generate_gep(op, self.cpu.ty_string_ptr,
self.cpu.const_string_index_array)
self.vars[op.result] = llvm_rffi.LLVMBuildLoad(self.builder, loc, "")
def generate_GETARRAYITEM_GC(self, op):
loc = self._generate_array_gep(op)
self.vars[op.result] = llvm_rffi.LLVMBuildLoad(self.builder, loc, "")
def _generate_len(self, op, ty, const_index_length):
loc = self._generate_len_gep(self.getptrarg(op.args[0]),
ty, const_index_length)
self.vars[op.result] = llvm_rffi.LLVMBuildLoad(self.builder, loc, "")
def generate_GETFIELD_GC(self, op):
loc = self._generate_field_gep(op.args[0], op.descr)
self.vars[op.result] = llvm_rffi.LLVMBuildLoad(self.builder, loc, "")