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from rpython.jit.backend.arm.arch import JITFRAME_FIXED_SIZE
from rpython.jit.backend.arm.assembler import AssemblerARM
from rpython.jit.backend.arm.regalloc import VFPRegisterManager
from rpython.jit.backend.arm.registers import fp, all_regs
from rpython.jit.backend.llsupport import jitframe
from rpython.jit.backend.llsupport.llmodel import AbstractLLCPU
from rpython.rlib.jit_hooks import LOOP_RUN_CONTAINER
from rpython.rtyper.lltypesystem import lltype, llmemory
from rpython.jit.backend.arm.detect import detect_hardfloat
from rpython.jit.backend.arm.detect import detect_arch_version, detect_neon
jitframe.STATICSIZE = JITFRAME_FIXED_SIZE
class CPUInfo(object):
hf_abi = False
arch_version = 6
neon = False
class AbstractARMCPU(AbstractLLCPU):
IS_64_BIT = False
supports_floats = True
supports_longlong = True
supports_singlefloats = True
supports_load_effective_address = True
from rpython.jit.backend.arm.arch import JITFRAME_FIXED_SIZE
all_reg_indexes = range(len(all_regs))
gen_regs = all_regs
float_regs = VFPRegisterManager.all_regs
frame_reg = fp
# can an ISA instruction handle a factor to the offset?
# XXX should be: tuple(1 << i for i in range(31))
load_supported_factors = (1,)
def __init__(self, rtyper, stats, opts=None, translate_support_code=False,
gcdescr=None):
AbstractLLCPU.__init__(self, rtyper, stats, opts,
translate_support_code, gcdescr)
self.cpuinfo = CPUInfo()
def set_debug(self, flag):
return self.assembler.set_debug(flag)
def setup(self):
self.assembler = AssemblerARM(self, self.translate_support_code)
def setup_once(self):
self.cpuinfo.arch_version = detect_arch_version()
self.cpuinfo.hf_abi = detect_hardfloat()
self.cpuinfo.neon = detect_neon()
#self.codemap.setup()
self.assembler.setup_once()
def finish_once(self):
self.assembler.finish_once()
def compile_bridge(self, faildescr, inputargs, operations,
original_loop_token, log=True, logger=None):
clt = original_loop_token.compiled_loop_token
clt.compiling_a_bridge()
return self.assembler.assemble_bridge(logger, faildescr, inputargs,
operations,
original_loop_token, log=log)
def cast_ptr_to_int(x):
adr = llmemory.cast_ptr_to_adr(x)
return CPU_ARM.cast_adr_to_int(adr)
cast_ptr_to_int._annspecialcase_ = 'specialize:arglltype(0)'
cast_ptr_to_int = staticmethod(cast_ptr_to_int)
def redirect_call_assembler(self, oldlooptoken, newlooptoken):
self.assembler.redirect_call_assembler(oldlooptoken, newlooptoken)
def invalidate_loop(self, looptoken):
"""Activate all GUARD_NOT_INVALIDATED in the loop and its attached
bridges. Before this call, all GUARD_NOT_INVALIDATED do nothing;
after this call, they all fail. Note that afterwards, if one such
guard fails often enough, it has a bridge attached to it; it is
possible then to re-call invalidate_loop() on the same looptoken,
which must invalidate all newer GUARD_NOT_INVALIDATED, but not the
old one that already has a bridge attached to it."""
from rpython.jit.backend.arm.codebuilder import InstrBuilder
for jmp, tgt in looptoken.compiled_loop_token.invalidate_positions:
mc = InstrBuilder(self.cpuinfo.arch_version)
mc.B_offs(tgt)
mc.copy_to_raw_memory(jmp)
# positions invalidated
looptoken.compiled_loop_token.invalidate_positions = []
# should be combined with other ll backends
def get_all_loop_runs(self):
l = lltype.malloc(LOOP_RUN_CONTAINER,
len(self.assembler.loop_run_counters))
for i, ll_s in enumerate(self.assembler.loop_run_counters):
l[i].type = ll_s.type
l[i].number = ll_s.number
l[i].counter = ll_s.i
return l
def build_regalloc(self):
''' for tests'''
from rpython.jit.backend.arm.regalloc import Regalloc
assert self.assembler is not None
return Regalloc(self.assembler)
class CPU_ARM(AbstractARMCPU):
"""ARM"""
backend_name = "arm"
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