def _set_literal_value(self, value):
if type(value) is _array_type:
if value.typecode not in self.array_typecodes:
raise Exception("Array typecode '%s' is not supported" %
(value.typecode, ))
if len(value) < INT_ARRAY_SIZES[self.array_typecode]:
print 'Warning: Variable array initializer has fewer elements than the corresponding vector: %d < %d' % (
len(value), INT_ARRAY_SIZES[self.array_typecode])
util.load_vector(self.code, self.reg, value.buffer_info()[0])
self.storage = value
elif type(value) in (list, tuple):
if len(value) < INT_ARRAY_SIZES[self.array_typecode]:
print 'Warning: Variable %s initializer has fewer elements than the corresponding vector: %d < %d' % (
type(value), len(value),
INT_ARRAY_SIZES[self.array_typecode])
storage = extarray.extarray(self.array_typecode, value)
util.load_vector(self.code, self.reg, storage.buffer_info()[0])
self.storage = storage
elif type(value) in self.literal_types:
if (value & 0x1F) == value and isinstance(
self,
(SignedByteType, SignedHalfwordType, SignedWordType)):
# Use the splat instructions
if isinstance(self, SignedByteType):
self.code.add(vmx.vspltisb(self.reg, value))
elif isinstance(self, SignedHalfwordType):
self.code.add(vmx.vspltish(self.reg, value))
elif isinstance(self, SignedWordType):
self.code.add(vmx.vspltisw(self.reg, value))
else:
raise Exception(
'Unsupported typecode for vector literal splat: ' +
str(type(self)))
else:
splat = [
self.value
for i in xrange(INT_ARRAY_SIZES[self.array_typecode])
]
vsplat = extarray.extarray(self.array_typecode, splat)
util.load_vector(self.code, self.reg, vsplat.buffer_info()[0])
self.code.prgm.add_storage(vsplat)
self.storage = vsplat
self.value = value
if self.storage is not None:
self.code.prgm.add_storage(self.storage)
return
def _set_literal_value(self, value):
if type(value) is _array_type:
if value.typecode not in self.array_typecodes:
raise Exception("Array typecode '%s' is not supported" % (value.typecode,))
if len(value) < INT_ARRAY_SIZES[self.array_typecode]:
print 'Warning: Variable array initializer has fewer elements than the corresponding vector: %d < %d' % (
len(value), INT_ARRAY_SIZES[self.array_typecode])
util.load_vector(self.code, self.reg, value.buffer_info()[0])
self.storage = value
elif type(value) in (list, tuple):
if len(value) < INT_ARRAY_SIZES[self.array_typecode]:
print 'Warning: Variable %s initializer has fewer elements than the corresponding vector: %d < %d' % (
type(value), len(value), INT_ARRAY_SIZES[self.array_typecode])
storage = extarray.extarray(self.array_typecode, value)
util.load_vector(self.code, self.reg, storage.buffer_info()[0])
self.storage = storage
elif type(value) in self.literal_types:
if (value & 0x1F) == value and isinstance(self, (SignedByteType, SignedHalfwordType, SignedWordType)):
# Use the splat instructions
if isinstance(self, SignedByteType):
self.code.add(vmx.vspltisb(self.reg, value))
elif isinstance(self, SignedHalfwordType):
self.code.add(vmx.vspltish(self.reg, value))
elif isinstance(self, SignedWordType):
self.code.add(vmx.vspltisw(self.reg, value))
else:
raise Exception('Unsupported typecode for vector literal splat: ' + str(type(self)))
else:
splat = [self.value for i in xrange(INT_ARRAY_SIZES[self.array_typecode])]
vsplat = extarray.extarray(self.array_typecode, splat)
util.load_vector(self.code, self.reg, vsplat.buffer_info()[0])
self.code.prgm.add_storage(vsplat)
self.storage = vsplat
self.value = value
if self.storage is not None:
self.code.prgm.add_storage(self.storage)
return
code.reset()
ppc.set_active_code(code)
vmx.set_active_code(code)
v_x = prgm.acquire_register('vector')
result = array.array('I', [0,0,0,0,0,0])
r_addr = prgm.acquire_register()
# Minor hack to align the address to a 16-byte boundary.
# Note that enough space was allocated in the array to
# ensure the save location is valid.
# (we are working on a cleaner memory management interface
# for CorePy that will fix these annoying alignment issues)
addr = result.buffer_info()[0]
if addr % 16 != 0:
addr += 16 - (addr % 16)
print 'aligning addr'
load_word(code, r_addr, addr)
vmx.vspltisw(v_x, 4)
vmx.stvx(v_x, 0, r_addr)
ppc.set_active_code(None)
vmx.set_active_code(None)
r = proc.execute(prgm) # , debug = True)
# code.print_code(pro = True, epi = True)
print result
code.reset()
ppc.set_active_code(code)
vmx.set_active_code(code)
v_x = code.acquire_register('vector')
result = array.array('I', [0, 0, 0, 0, 0, 0])
r_addr = code.acquire_register()
# Minor hack to align the address to a 16-byte boundary.
# Note that enough space was allocated in the array to
# ensure the save location is valid.
# (we are working on a cleaner memory management interface
# for CorePy that will fix these annoying alignment issues)
addr = result.buffer_info()[0]
if addr % 16 != 0:
addr += 16 - (addr % 16)
print 'aligning addr'
load_word(code, r_addr, addr)
vmx.vspltisw(v_x, 4)
vmx.stvx(v_x, 0, r_addr)
ppc.set_active_code(None)
vmx.set_active_code(None)
r = proc.execute(code) # , debug = True)
# code.print_code(pro = True, epi = True)
print result
