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from rpython.rtyper.lltypesystem import lltype, llmemory
from rpython.rtyper.lltypesystem import rstr
from rpython.rtyper import rclass
from rpython.rtyper.annlowlevel import llhelper
from rpython.rlib.objectmodel import instantiate
from rpython.jit.backend.ppc.locations import (imm, RegisterLocation,
ImmLocation, StackLocation)
from rpython.jit.backend.ppc.register import *
from rpython.jit.backend.ppc.codebuilder import hi, lo
from rpython.jit.backend.ppc.ppc_assembler import AssemblerPPC
from rpython.jit.backend.ppc.arch import WORD
from rpython.jit.codewriter.effectinfo import EffectInfo
from rpython.jit.codewriter import longlong
from rpython.jit.metainterp.history import BasicFailDescr, \
JitCellToken, TargetToken
from rpython.jit.tool.oparser import parse
class MockBuilder(object):
def __init__(self):
self.reset()
def __getattr__(self, name):
instr = MockInstruction(name)
self.instrs.append(instr)
return instr
def str_instrs(self):
return [str(inst) for inst in self.instrs]
def reset(self):
self.instrs = []
class MockInstruction(object):
def __init__(self, name, *args):
self.name = name
self.args = args
def __call__(self, *args):
self.args = args
def __eq__(self, other):
assert isinstance(other, MockInstruction)
return self.name == other.name and self.args == other.args
def __repr__(self):
return self.__str__()
def __str__(self):
return "%s %r" % (self.name, self.args)
MI = MockInstruction
class TestMocks(object):
def setup_method(self, method):
self.builder = MockBuilder()
def test_cmp_instruction(self):
assert MI("a", 1, 2) == MI("a", 1, 2)
assert not MI("a", 1, 2) == MI("b", 1, 2)
assert not MI("a", 1, 2) == MI("a", 2, 2)
assert not MI("a", 1) == MI("a", 1, 2)
assert not MI("a", 1, 2) == MI("a")
assert MI("a") == MI("a")
def test_basic(self):
exp_instrs = [MI("mr", 3, 5),
MI("foobar"),
MI("li", 3, 2),
MI("stw", 3, 5, 100)]
self.builder.mr(3, 5)
self.builder.foobar()
self.builder.li(3, 2)
self.builder.stw(3, 5, 100)
assert self.builder.instrs == exp_instrs
self.builder.blub()
assert self.builder.instr != exp_instrs
class TestRegallocMov(object):
def setup_method(self, method):
self.builder = MockBuilder()
self.asm = instantiate(AssemblerPPC)
self.asm.mc = self.builder
def test_immediate_to_reg(self):
self.asm.regalloc_mov(imm(5), r10)
big = 2 << 28
self.asm.regalloc_mov(imm(big), r0)
exp_instr = [MI("load_imm", r10, 5),
MI("load_imm", r0, big)]
assert self.asm.mc.instrs == exp_instr
def test_immediate_to_mem(self):
self.asm.regalloc_mov(imm(5), stack(6))
big = 2 << 28
self.asm.regalloc_mov(imm(big), stack(7))
exp_instr = [MI("alloc_scratch_reg"),
MI("load_imm", r0, 5),
MI("store", r0.value, SPP.value, get_spp_offset(6)),
MI("free_scratch_reg"),
MI("alloc_scratch_reg"),
MI("load_imm", r0, big),
MI("store", r0.value, SPP.value, get_spp_offset(7)),
MI("free_scratch_reg")]
assert self.asm.mc.instrs == exp_instr
def test_mem_to_reg(self):
self.asm.regalloc_mov(stack(5), reg(10))
self.asm.regalloc_mov(stack(0), reg(0))
exp_instrs = [MI("load", r10.value, SPP.value, get_spp_offset(5)),
MI("load", r0.value, SPP.value, get_spp_offset(0))]
assert self.asm.mc.instrs == exp_instrs
def test_mem_to_mem(self):
self.asm.regalloc_mov(stack(5), stack(6))
exp_instrs = [
MI("alloc_scratch_reg"),
MI("load", r0.value, SPP.value, get_spp_offset(5)),
MI("store", r0.value, SPP.value, get_spp_offset(6)),
MI("free_scratch_reg")]
assert self.asm.mc.instrs == exp_instrs
def test_reg_to_reg(self):
self.asm.regalloc_mov(reg(0), reg(1))
self.asm.regalloc_mov(reg(5), reg(10))
exp_instrs = [MI("mr", r1.value, r0.value),
MI("mr", r10.value, r5.value)]
assert self.asm.mc.instrs == exp_instrs
def test_reg_to_mem(self):
self.asm.regalloc_mov(reg(5), stack(10))
self.asm.regalloc_mov(reg(0), stack(2))
exp_instrs = [MI("store", r5.value, SPP.value, get_spp_offset(10)),
MI("store", r0.value, SPP.value, get_spp_offset(2))]
assert self.asm.mc.instrs == exp_instrs
def reg(i):
return RegisterLocation(i)
def stack(i):
return StackLocation(i, get_spp_offset(i))
def get_spp_offset(i):
return i * 8 + 304
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