def define_ctor(ctx, mutants):
'''
sets up global ctor that will initialize a linked list
with mutant information
'''
fn = CTor(ctx.module.id, mutants)(ctx.module)
value = Constant.int(Type.int(32), 65535)
value = Constant.struct([value, fn])
value = Constant.array(value.type, [value])
ctors = ctx.module.add_global_variable(value.type, "llvm.global_ctors")
ctors.linkage = core.LINKAGE_APPENDING
ctors.initializer = value
def get_constant_struct(self, builder, ty, val):
assert self.is_struct_type(ty)
module = cgutils.get_module(builder)
if ty in types.complex_domain:
if ty == types.complex64:
innertype = types.float32
elif ty == types.complex128:
innertype = types.float64
else:
raise Exception("unreachable")
real = self.get_constant(innertype, val.real)
imag = self.get_constant(innertype, val.imag)
const = Constant.struct([real, imag])
return const
elif isinstance(ty, types.Tuple):
consts = [self.get_constant_generic(builder, ty.types[i], v)
for i, v in enumerate(val)]
return Constant.struct(consts)
else:
raise NotImplementedError(ty)
def get_constant_struct(self, builder, ty, val):
assert self.is_struct_type(ty)
module = cgutils.get_module(builder)
if ty in types.complex_domain:
if ty == types.complex64:
innertype = types.float32
elif ty == types.complex128:
innertype = types.float64
else:
raise Exception("unreachable")
real = self.get_constant(innertype, val.real)
imag = self.get_constant(innertype, val.imag)
const = Constant.struct([real, imag])
return const
elif isinstance(ty, types.Tuple):
consts = [self.get_constant_generic(builder, ty.types[i], v)
for i, v in enumerate(val)]
return Constant.struct(consts)
else:
raise NotImplementedError(ty)
def get_constant_struct(self, builder, ty, val):
assert self.is_struct_type(ty)
module = cgutils.get_module(builder)
if ty in types.complex_domain:
if ty == types.complex64:
innertype = types.float32
elif ty == types.complex128:
innertype = types.float64
else:
raise Exception("unreachable")
real = self.get_constant(innertype, val.real)
imag = self.get_constant(innertype, val.imag)
const = Constant.struct([real, imag])
gv = module.add_global_variable(const.type, name=".const")
gv.linkage = lc.LINKAGE_INTERNAL
gv.initializer = const
gv.global_constant = True
return builder.load(gv)
else:
raise NotImplementedError(ty)
_plat_bits = struct_.calcsize('@P') * 8
_int8 = Type.int(8)
_int32 = Type.int(32)
_void_star = Type.pointer(_int8)
_int8_star = _void_star
_sizeof_py_ssize_t = ctypes.sizeof(getattr(ctypes, 'c_size_t'))
_llvm_py_ssize_t = Type.int(_sizeof_py_ssize_t * 8)
if _trace_refs_:
_pyobject_head = Type.struct([_void_star, _void_star,
_llvm_py_ssize_t, _void_star])
_pyobject_head_init = Constant.struct([
Constant.null(_void_star), # _ob_next
Constant.null(_void_star), # _ob_prev
Constant.int(_llvm_py_ssize_t, 1), # ob_refcnt
Constant.null(_void_star), # ob_type
])
else:
_pyobject_head = Type.struct([_llvm_py_ssize_t, _void_star])
_pyobject_head_init = Constant.struct([
Constant.int(_llvm_py_ssize_t, 1), # ob_refcnt
Constant.null(_void_star), # ob_type
])
_pyobject_head_p = Type.pointer(_pyobject_head)
_plat_bits = struct_.calcsize('@P') * 8
_int8 = Type.int(8)
_int32 = Type.int(32)
_void_star = Type.pointer(_int8)
_int8_star = _void_star
_sizeof_py_ssize_t = ctypes.sizeof(getattr(ctypes, 'c_size_t'))
_llvm_py_ssize_t = Type.int(_sizeof_py_ssize_t * 8)
if _trace_refs_:
_pyobject_head = Type.struct(
[_void_star, _void_star, _llvm_py_ssize_t, _void_star])
_pyobject_head_init = Constant.struct([
Constant.null(_void_star), # _ob_next
Constant.null(_void_star), # _ob_prev
Constant.int(_llvm_py_ssize_t, 1), # ob_refcnt
Constant.null(_void_star), # ob_type
])
else:
_pyobject_head = Type.struct([_llvm_py_ssize_t, _void_star])
_pyobject_head_init = Constant.struct([
Constant.int(_llvm_py_ssize_t, 1), # ob_refcnt
Constant.null(_void_star), # ob_type
])
_pyobject_head_p = Type.pointer(_pyobject_head)
