class TestRunningAssembler(object):
def setup_method(self, method):
cpu = CPU(None, None)
self.a = AssemblerZARCH(cpu)
self.a.setup_once()
token = JitCellToken()
clt = CompiledLoopToken(cpu, 0)
clt.allgcrefs = []
token.compiled_loop_token = clt
self.a.setup(token)
self.mc = self.a.mc
def test_make_operation_list(self):
i = rop.INT_ADD
from rpython.jit.backend.zarch import assembler
assert assembler.asm_operations[i] \
is AssemblerZARCH.emit_int_add.im_func
def test_sync(self):
self.a.mc.XGR(r.r2, r.r2)
self.a.mc.sync()
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
def test_load_64bit(self):
self.a.mc.load_imm(r.r2, 0x0fffFFFF)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0x0fffFFFF
def test_load_64bit_2(self):
self.a.mc.load_imm(r.r2, 0xffffFFFF)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0xffffFFFF
def test_load_64bit_3(self):
self.a.mc.load_imm(r.r2, 2177165728)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 2177165728
def test_byte_count_instr(self):
assert self.mc.BRC_byte_count == 4
assert self.mc.LG_byte_count == 6
def test_facility(self):
adr = self.a.datablockwrapper.malloc_aligned(16, 16)
self.a.mc.load_imm(r.r2, adr)
self.a.mc.STFLE(loc.addr(0, r.r2))
self.a.mc.BCR(con.ANY, r.r14)
run_asm(self.a)
fac_data = rffi.cast(rffi.CArrayPtr(rffi.ULONG), adr)
f64 = bin(fac_data[0])[2:]
s64 = bin(fac_data[1])[2:]
print(f64)
print(s64)
for i, c in enumerate(f64):
print('index: %d is set? %s' % (i, c))
assert f64[
1] == '1' # The z/Architecture architectural mode is installed.
assert f64[2] == '1' # The z/Architecture architectural mode is active.
assert f64[18] == '1' # long displacement facility
assert f64[21] == '1' # extended immediate facility
assert f64[34] == '1' # general instruction facility
assert f64[41] == '1' # floating-point-support-enhancement
def test_load_byte_zero_extend(self):
adr = self.a.datablockwrapper.malloc_aligned(16, 16)
data = rffi.cast(rffi.CArrayPtr(rffi.ULONG), adr)
data[0] = rffi.cast(rffi.ULONG, intmask(0xffffFFFFffffFF02))
self.a.mc.load_imm(r.r3, adr + 7)
self.a.mc.LLGC(r.r2, loc.addr(0, r.r3))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 2
def test_load_byte_and_imm(self):
adr = self.a.datablockwrapper.malloc_aligned(16, 16)
data = rffi.cast(rffi.CArrayPtr(rffi.ULONG), adr)
data[0] = rffi.cast(rffi.ULONG, intmask(0xffffFFFFffff0001))
self.a.mc.load_imm(r.r3, adr)
self.a.mc.LG(r.r2, loc.addr(0, r.r3))
self.a.mc.LLGC(r.r2, loc.addr(7, r.r3))
self.a.mc.NILL(r.r2, loc.imm(0x0))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
@py.test.mark.parametrize('p,v', [(0, 0), (8, 8), (7, 0), (4, 0), (1, 0),
(9, 8)])
def test_align(self, p, v):
WORD = 8
self.a.mc.load_imm(r.r2, p)
self.a.mc.LGHI(r.r0, loc.imm(~(WORD - 1)))
self.a.mc.NGR(r.r2, r.r0)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == v
@py.test.mark.parametrize('p', [
2**32, 2**32 + 1, 2**63 - 1, 2**63 - 2, 0, 1, 2, 3, 4, 5, 6, 7, 8,
10001
])
def test_align_withroll(self, p):
self.a.mc.load_imm(r.r2, p & 0xffffFFFFffffFFFF)
self.a.mc.RISBG(r.r2, r.r2, loc.imm(0), loc.imm(0x80 | 60), loc.imm(0))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == rffi.cast(rffi.ULONG, p) & ~(7)
def test_nill(self):
self.a.mc.load_imm(r.r2, 1)
self.a.mc.load_imm(r.r3, 0x010001)
self.a.mc.NILL(r.r3, loc.imm(0xFFFF))
self.a.mc.BCR(con.EQ, r.r14) # should not branch
self.a.mc.load_imm(r.r2, 0) # should return here
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
def test_complement(self):
self.a.mc.load_imm(r.r2, 0)
#self.a.mc.LCGR(r.r2, r.r2)
self.a.mc.XIHF(r.r2, loc.imm(0xffffFFFF))
self.a.mc.XILF(r.r2, loc.imm(0xffffFFFF))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -1
def test_and_7_with_risbgn(self):
n = 13
l = loc
self.a.mc.load_imm(r.r2, 7 << n)
self.a.mc.RISBG(r.r2, r.r2, l.imm(61), l.imm(0x80 | 63), l.imm(64 - n))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 7
def test_risbgn(self):
n = 16
l = loc
self.a.mc.load_imm(r.r2, 0xffFFffFF)
self.a.mc.RISBG(r.r2, r.r2, l.imm(60), l.imm(0x80 | 63), l.imm(64 - n))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 15
def test_shift_same_register(self):
self.a.mc.load_imm(r.r3, 0x1)
self.a.mc.SLLG(r.r2, r.r3, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 2
def test_shift_arith(self):
self.a.mc.load_imm(r.r2, -14)
self.a.mc.SLAG(r.r2, r.r2, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -28
def test_shift_negative_logical(self):
self.a.mc.load_imm(r.r2, -14)
self.a.mc.SLLG(r.r2, r.r2, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -28
def test_shift_negative_logical_2(self):
self.a.mc.load_imm(r.r2, -2)
self.a.mc.SLLG(r.r2, r.r2, loc.addr(63))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
def test_shift_negative_logical_3(self):
self.a.mc.load_imm(r.r2, -2)
self.a.mc.SLLG(r.r3, r.r2, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -2
def test_load_small_int_to_reg(self):
self.a.mc.LGHI(r.r2, loc.imm(123))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 123
def test_prolog_epilog(self):
gen_func_prolog(self.a.mc)
self.a.mc.LGHI(r.r2, loc.imm(123))
gen_func_epilog(self.a.mc)
assert run_asm(self.a) == 123
def test_simple_func(self):
# enter
self.a.mc.STMG(r.r11, r.r15, loc.addr(-96, r.SP))
self.a.mc.AHI(r.SP, loc.imm(-96))
# from the start of BRASL to end of jmpto there are 8+6 bytes
self.a.mc.BRASL(r.r14, loc.imm(8 + 6))
self.a.mc.LMG(r.r11, r.r15, loc.addr(0, r.SP))
self.a.jmpto(r.r14)
addr = self.a.mc.get_relative_pos()
assert addr & 0x1 == 0
gen_func_prolog(self.a.mc)
self.a.mc.LGHI(r.r2, loc.imm(321))
gen_func_epilog(self.a.mc)
assert run_asm(self.a) == 321
def test_simple_loop(self):
self.a.mc.LGHI(r.r3, loc.imm(2**15 - 1))
self.a.mc.LGHI(r.r4, loc.imm(1))
L1 = self.a.mc.get_relative_pos()
self.a.mc.SGR(r.r3, r.r4)
LJ = self.a.mc.get_relative_pos()
self.a.mc.BRCL(con.GT, loc.imm(L1 - LJ))
self.a.mc.LGR(r.r2, r.r3)
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_and_imm(self):
self.a.mc.NIHH(r.r2, loc.imm(0))
self.a.mc.NIHL(r.r2, loc.imm(0))
self.a.mc.NILL(r.r2, loc.imm(0))
self.a.mc.NILH(r.r2, loc.imm(0))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_or_imm(self):
self.a.mc.OIHH(r.r2, loc.imm(0xffff))
self.a.mc.OIHL(r.r2, loc.imm(0xffff))
self.a.mc.OILL(r.r2, loc.imm(0xffff))
self.a.mc.OILH(r.r2, loc.imm(0xffff))
self.a.jmpto(r.r14)
assert run_asm(self.a) == -1
def test_or_bitpos_0to15(self):
self.a.mc.XGR(r.r2, r.r2)
self.a.mc.OIHH(r.r2, loc.imm(0x0000))
self.a.mc.OIHL(r.r2, loc.imm(0x0000))
self.a.mc.OILL(r.r2, loc.imm(0x0000))
self.a.mc.OILH(r.r2, loc.imm(0x300c))
self.a.jmpto(r.r14)
res = run_asm(self.a)
assert res == 0x00000000300c0000
def test_uint_rshift(self):
self.a.mc.XGR(r.r4, r.r4)
self.a.mc.LGFI(r.r5, loc.imm(63))
self.a.mc.NGR(r.r4, r.r5)
self.a.mc.LGFI(r.r3, loc.imm(18))
self.a.mc.LGFI(r.r2, loc.imm(-1))
self.a.mc.SRLG(r.r2, r.r3, loc.addr(18))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_generate_max_integral_64bit(self):
self.a.mc.LGHI(r.r2, loc.imm(-1))
self.a.mc.RISBG(r.r2, r.r2, loc.imm(1), loc.imm(0x80 | 63), loc.imm(0))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 2**63 - 1
def test_generate_sign_bit(self):
self.a.mc.LGHI(r.r2, loc.imm(-1))
self.a.mc.RISBG(r.r2, r.r2, loc.imm(0), loc.imm(0x80 | 0), loc.imm(0))
self.a.jmpto(r.r14)
assert run_asm(self.a) == -2**63
def test_ag_overflow(self):
self.a.mc.BRC(con.ANY, loc.imm(4 + 8 + 8))
self.a.mc.write('\x7f' + '\xff' * 7)
self.a.mc.write('\x7f' + '\xff' * 7)
self.a.mc.LARL(r.r5, loc.imm(-8))
self.a.mc.LG(r.r4, loc.addr(8, r.r5))
self.a.mc.AG(r.r4, loc.addr(0, r.r5))
self.a.mc.LGR(r.r2, r.r4)
self.a.jmpto(r.r14)
assert run_asm(self.a) == -2
def test_xor(self):
self.a.mc.XGR(r.r2, r.r2)
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_literal_pool(self):
gen_func_prolog(self.a.mc)
self.a.mc.BRAS(r.r13, loc.imm(8 + self.mc.BRAS_byte_count))
self.a.mc.write('\x08\x07\x06\x05\x04\x03\x02\x01')
self.a.mc.LG(r.r2, loc.addr(0, r.r13))
gen_func_epilog(self.a.mc)
assert run_asm(self.a) == 0x0807060504030201
def label(self, name, func=False):
if not func:
return LabelCtx(self, name)
return ActivationRecordCtx(self, name)
def patch_branch_imm16(self, base, imm):
imm = (imm & 0xffff) >> 1
self.mc.overwrite(base, chr((imm >> 8) & 0xFF))
self.mc.overwrite(base + 1, chr(imm & 0xFF))
def pos(self, name):
return self.mc.ops_offset[name]
def cur(self):
return self.mc.get_relative_pos()
def jump_here(self, func, name):
if func.__name__ == 'BRAS':
self.patch_branch_imm16(
self.pos(name) + 2,
self.cur() - self.pos(name))
else:
raise NotImplementedError
def jump_to(self, reg, label):
val = (self.pos(label) - self.cur())
self.mc.BRAS(reg, loc.imm(val))
def test_stmg(self):
self.mc.LGR(r.r2, r.r15)
self.a.jmpto(r.r14)
print hex(run_asm(self.a))
def test_recursion(self):
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
self.mc.write('\x00\x00\x00\x00\x00\x00\x00\x00')
self.jump_here(self.mc.BRAS, 'lit')
# recurse X times
self.mc.XGR(r.r2, r.r2)
self.mc.LGHI(r.r9, loc.imm(15))
with self.label('L1'):
self.mc.BRAS(r.r14, loc.imm(0))
with ActivationRecordCtx(self, 'rec'):
self.mc.AGR(r.r2, r.r9)
self.mc.AHI(r.r9, loc.imm(-1))
# if not entered recursion, return from activation record
# implicitly generated here by with statement
self.mc.BRC(con.GT, loc.imm(self.pos('rec') - self.cur()))
self.jump_here(self.mc.BRAS, 'L1')
# call rec... recursivly
self.jump_to(r.r14, 'rec')
self.a.jmpto(r.r14)
assert run_asm(self.a) == 120
def test_printf(self):
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
for c in "hello syscall\n":
self.mc.writechar(c)
self.jump_here(self.mc.BRAS, 'lit')
self.mc.LGHI(r.r2, loc.imm(1)) # stderr
self.mc.LA(r.r3, loc.addr(0, r.r13)) # char*
self.mc.LGHI(r.r4, loc.imm(14)) # length
# write sys call
self.mc.SVC(loc.imm(4))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 14
def test_float(self):
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
self.mc.write(BFL(-15.0))
self.jump_here(self.mc.BRAS, 'lit')
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.CGDBR(r.r2, msk.RND_CURMODE, r.f0)
self.a.jmpto(r.r14)
assert run_asm(self.a) == -15
@py.test.mark.parametrize("v1,v2,res", [
(0.0, 0.0, 0.0),
(-15.0, -15.0, -30.0),
(1.5, -3.22, -1.72),
(0.5, 0.0, 0.5),
(0.0001, -0.0002, -0.0001),
(float('nan'), 1.0, float('nan')),
])
def test_float_to_memory(self, v1, v2, res):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
self.mc.write(BFL(v1))
self.mc.write(BFL(v2))
self.mc.write(ADDR(mem))
self.jump_here(self.mc.BRAS, 'lit')
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.LD(r.f1, loc.addr(8, r.r13))
self.mc.ADBR(r.f0, r.f1)
self.mc.LG(r.r11, loc.addr(16, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
self.a.jmpto(r.r14)
run_asm(self.a)
assert isclose(mem[0], res)
@py.test.mark.parametrize("v1,v2,res", [
(0.0, 0.0, 0.0),
(-15.0, -15.0, 225.0),
(0.0, 9876543.21, 0.0),
(-0.5, 14.5, -7.25),
(0.0001, 2.0, 0.0002),
(float('nan'), 1.0, float('nan')),
])
def test_float_mul_to_memory(self, v1, v2, res):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.float(v1)
pool.float(v2)
pool.addr(mem)
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.MDB(r.f0, loc.addr(8, r.r13))
self.mc.LG(r.r11, loc.addr(16, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
self.a.jmpto(r.r14)
run_asm(self.a)
assert isclose(mem[0], res)
def test_float_load_zero(self):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.addr(mem)
self.mc.LZDR(r.f0)
self.mc.LG(r.r11, loc.addr(0, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
run_asm(self.a)
assert isclose(mem[0], 0.0)
def test_cast_single_float_to_float(self):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.single_float(6.66)
pool.addr(mem)
self.mc.LEY(r.f1, loc.addr(0, r.r13))
## cast short to long!
self.mc.LDEBR(r.f0, r.f1)
self.mc.LG(r.r11, loc.addr(4, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
run_asm(self.a)
assert isclose(mem[0], 6.66, abs_tol=0.05)
def test_cast_int64_to_float(self):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.int64(12345)
pool.addr(mem)
self.mc.LG(r.r12, loc.addr(0, r.r13))
# cast int to float!
self.mc.CDGBR(r.f0, r.r12)
self.mc.LG(r.r11, loc.addr(8, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
run_asm(self.a)
assert isclose(mem[0], 12345.0)
def test_float_cmp(self):
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.float(1.0)
pool.float(2.0)
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.LD(r.f1, loc.addr(8, r.r13))
self.mc.CDBR(r.f0, r.f1)
self.mc.LGHI(r.r2, loc.imm(0))
self.mc.BCR(con.EQ, r.r14) # must not branch
self.mc.LGHI(r.r2, loc.imm(1))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 1
def pushpop_jitframe(self, registers):
self.a._push_core_regs_to_jitframe(self.mc, registers)
self.a._pop_core_regs_from_jitframe(self.mc, registers)
def test_pushpop_jitframe_multiple_optimization(self):
stored = []
loaded = []
def STMG(start, end, addr):
stored.append((start, end))
def STG(reg, addr):
stored.append((reg, ))
def LMG(start, end, addr):
loaded.append((start, end))
def LG(reg, addr):
loaded.append((reg, ))
self.mc.STMG = STMG
self.mc.STG = STG
self.mc.LMG = LMG
self.mc.LG = LG
# 2-6
self.pushpop_jitframe([r.r2, r.r3, r.r4, r.r5, r.r6, r.r8, r.r10])
assert stored == [(r.r2, r.r6), (r.r8, ), (r.r10, )]
assert stored == loaded
stored = []
loaded = []
# two sequences 10-11, 13-14
self.pushpop_jitframe([r.r2, r.r3, r.r10, r.r11])
assert stored == [(r.r2, r.r3), (r.r10, r.r11)]
assert stored == loaded
stored = []
loaded = []
# one sequence and on single
self.pushpop_jitframe([r.r2, r.r3, r.r5])
assert stored == [(r.r2, r.r3), (r.r5, )]
assert stored == loaded
stored = []
loaded = []
# single items
self.pushpop_jitframe(r.MANAGED_REGS[::2])
assert stored == [(x, ) for x in r.MANAGED_REGS[::2]]
assert stored == loaded
stored = []
loaded = []
# large sequence 0-5 and one hole between
self.pushpop_jitframe([r.r2, r.r3, r.r4, r.r5, r.r10, r.r11])
assert stored == [(r.r2, r.r5), (r.r10, r.r11)]
assert stored == loaded
stored = []
loaded = []
# ensure there is just on instruction for the 'best case'
self.pushpop_jitframe(r.MANAGED_REGS)
assert stored == [(r.r2, r.r11)]
assert stored == loaded
stored = []
loaded = []
# just one single
for x in [r.r10, r.r3, r.r2, r.r11]:
self.pushpop_jitframe([x])
assert stored == [(x, )]
assert stored == loaded
stored = []
loaded = []
# unordered
self.pushpop_jitframe([r.r11, r.r8, r.r4, r.r2])
assert stored == [(r.r11, ), (r.r8, ), (r.r4, ), (r.r2, )]
assert stored == loaded
stored = []
loaded = []
class TestRunningAssembler(object):
def setup_method(self, method):
cpu = CPU(None, None)
self.a = AssemblerZARCH(cpu)
self.a.setup_once()
token = JitCellToken()
clt = CompiledLoopToken(cpu, 0)
clt.allgcrefs = []
token.compiled_loop_token = clt
self.a.setup(token)
self.mc = self.a.mc
def test_make_operation_list(self):
i = rop.INT_ADD
from rpython.jit.backend.zarch import assembler
assert assembler.asm_operations[i] \
is AssemblerZARCH.emit_int_add.im_func
def test_sync(self):
self.a.mc.XGR(r.r2, r.r2)
self.a.mc.sync()
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
def test_load_64bit(self):
self.a.mc.load_imm(r.r2, 0x0fffFFFF)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0x0fffFFFF
def test_load_64bit_2(self):
self.a.mc.load_imm(r.r2, 0xffffFFFF)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0xffffFFFF
def test_load_64bit_3(self):
self.a.mc.load_imm(r.r2, 2177165728)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 2177165728
def test_byte_count_instr(self):
assert self.mc.BRC_byte_count == 4
assert self.mc.LG_byte_count == 6
def test_facility(self):
adr = self.a.datablockwrapper.malloc_aligned(16, 16)
self.a.mc.load_imm(r.r2, adr)
self.a.mc.STFLE(loc.addr(0,r.r2))
self.a.mc.BCR(con.ANY, r.r14)
run_asm(self.a)
fac_data = rffi.cast(rffi.CArrayPtr(rffi.ULONG), adr)
f64 = bin(fac_data[0])[2:]
s64 = bin(fac_data[1])[2:]
print(f64)
print(s64)
for i,c in enumerate(f64):
print('index: %d is set? %s' % (i,c))
assert f64[1] == '1' # The z/Architecture architectural mode is installed.
assert f64[2] == '1' # The z/Architecture architectural mode is active.
assert f64[18] == '1' # long displacement facility
assert f64[21] == '1' # extended immediate facility
assert f64[34] == '1' # general instruction facility
assert f64[41] == '1' # floating-point-support-enhancement
def test_load_byte_zero_extend(self):
adr = self.a.datablockwrapper.malloc_aligned(16, 16)
data = rffi.cast(rffi.CArrayPtr(rffi.ULONG), adr)
data[0] = rffi.cast(rffi.ULONG, intmask(0xffffFFFFffffFF02))
self.a.mc.load_imm(r.r3, adr+7)
self.a.mc.LLGC(r.r2, loc.addr(0,r.r3))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 2
def test_load_byte_and_imm(self):
adr = self.a.datablockwrapper.malloc_aligned(16, 16)
data = rffi.cast(rffi.CArrayPtr(rffi.ULONG), adr)
data[0] = rffi.cast(rffi.ULONG, intmask(0xffffFFFFffff0001))
self.a.mc.load_imm(r.r3, adr)
self.a.mc.LG(r.r2, loc.addr(0,r.r3))
self.a.mc.LLGC(r.r2, loc.addr(7,r.r3))
self.a.mc.NILL(r.r2, loc.imm(0x0))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
@py.test.mark.parametrize('p,v', [(0,0),(8,8),(7,0),(4,0),(1,0),(9,8)])
def test_align(self, p, v):
WORD = 8
self.a.mc.load_imm(r.r2, p)
self.a.mc.LGHI(r.r0, loc.imm(~(WORD-1)))
self.a.mc.NGR(r.r2, r.r0)
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == v
@py.test.mark.parametrize('p', [2**32,2**32+1,2**63-1,2**63-2,0,1,2,3,4,5,6,7,8,10001])
def test_align_withroll(self, p):
self.a.mc.load_imm(r.r2, p & 0xffffFFFFffffFFFF)
self.a.mc.RISBG(r.r2, r.r2, loc.imm(0), loc.imm(0x80 | 60), loc.imm(0))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == rffi.cast(rffi.ULONG,p) & ~(7)
def test_nill(self):
self.a.mc.load_imm(r.r2, 1)
self.a.mc.load_imm(r.r3, 0x010001)
self.a.mc.NILL(r.r3, loc.imm(0xFFFF))
self.a.mc.BCR(con.EQ, r.r14) # should not branch
self.a.mc.load_imm(r.r2, 0) # should return here
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
def test_complement(self):
self.a.mc.load_imm(r.r2, 0)
#self.a.mc.LCGR(r.r2, r.r2)
self.a.mc.XIHF(r.r2, loc.imm(0xffffFFFF))
self.a.mc.XILF(r.r2, loc.imm(0xffffFFFF))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -1
def test_and_7_with_risbgn(self):
n = 13
l = loc
self.a.mc.load_imm(r.r2, 7<<n)
self.a.mc.RISBG(r.r2, r.r2, l.imm(61), l.imm(0x80 | 63), l.imm(64-n))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 7
def test_risbgn(self):
n = 16
l = loc
self.a.mc.load_imm(r.r2, 0xffFFffFF)
self.a.mc.RISBG(r.r2, r.r2, l.imm(60), l.imm(0x80 | 63), l.imm(64-n))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 15
def test_shift_same_register(self):
self.a.mc.load_imm(r.r3, 0x1)
self.a.mc.SLLG(r.r2, r.r3, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 2
def test_shift_arith(self):
self.a.mc.load_imm(r.r2, -14)
self.a.mc.SLAG(r.r2, r.r2, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -28
def test_shift_negative_logical(self):
self.a.mc.load_imm(r.r2, -14)
self.a.mc.SLLG(r.r2, r.r2, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -28
def test_shift_negative_logical_2(self):
self.a.mc.load_imm(r.r2, -2)
self.a.mc.SLLG(r.r2, r.r2, loc.addr(63))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == 0
def test_shift_negative_logical_3(self):
self.a.mc.load_imm(r.r2, -2)
self.a.mc.SLLG(r.r3, r.r2, loc.addr(1))
self.a.mc.BCR(con.ANY, r.r14)
assert run_asm(self.a) == -2
def test_load_small_int_to_reg(self):
self.a.mc.LGHI(r.r2, loc.imm(123))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 123
def test_prolog_epilog(self):
gen_func_prolog(self.a.mc)
self.a.mc.LGHI(r.r2, loc.imm(123))
gen_func_epilog(self.a.mc)
assert run_asm(self.a) == 123
def test_simple_func(self):
# enter
self.a.mc.STMG(r.r11, r.r15, loc.addr(-96, r.SP))
self.a.mc.AHI(r.SP, loc.imm(-96))
# from the start of BRASL to end of jmpto there are 8+6 bytes
self.a.mc.BRASL(r.r14, loc.imm(8+6))
self.a.mc.LMG(r.r11, r.r15, loc.addr(0, r.SP))
self.a.jmpto(r.r14)
addr = self.a.mc.get_relative_pos()
assert addr & 0x1 == 0
gen_func_prolog(self.a.mc)
self.a.mc.LGHI(r.r2, loc.imm(321))
gen_func_epilog(self.a.mc)
assert run_asm(self.a) == 321
def test_simple_loop(self):
self.a.mc.LGHI(r.r3, loc.imm(2**15-1))
self.a.mc.LGHI(r.r4, loc.imm(1))
L1 = self.a.mc.get_relative_pos()
self.a.mc.SGR(r.r3, r.r4)
LJ = self.a.mc.get_relative_pos()
self.a.mc.BRCL(con.GT, loc.imm(L1-LJ))
self.a.mc.LGR(r.r2, r.r3)
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_and_imm(self):
self.a.mc.NIHH(r.r2, loc.imm(0))
self.a.mc.NIHL(r.r2, loc.imm(0))
self.a.mc.NILL(r.r2, loc.imm(0))
self.a.mc.NILH(r.r2, loc.imm(0))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_or_imm(self):
self.a.mc.OIHH(r.r2, loc.imm(0xffff))
self.a.mc.OIHL(r.r2, loc.imm(0xffff))
self.a.mc.OILL(r.r2, loc.imm(0xffff))
self.a.mc.OILH(r.r2, loc.imm(0xffff))
self.a.jmpto(r.r14)
assert run_asm(self.a) == -1
def test_or_bitpos_0to15(self):
self.a.mc.XGR(r.r2, r.r2)
self.a.mc.OIHH(r.r2, loc.imm(0x0000))
self.a.mc.OIHL(r.r2, loc.imm(0x0000))
self.a.mc.OILL(r.r2, loc.imm(0x0000))
self.a.mc.OILH(r.r2, loc.imm(0x300c))
self.a.jmpto(r.r14)
res = run_asm(self.a)
assert res == 0x00000000300c0000
def test_uint_rshift(self):
self.a.mc.XGR(r.r4, r.r4)
self.a.mc.LGFI(r.r5, loc.imm(63))
self.a.mc.NGR(r.r4, r.r5)
self.a.mc.LGFI(r.r3, loc.imm(18))
self.a.mc.LGFI(r.r2, loc.imm(-1))
self.a.mc.SRLG(r.r2, r.r3, loc.addr(18))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_generate_max_integral_64bit(self):
self.a.mc.LGHI(r.r2, loc.imm(-1))
self.a.mc.RISBG(r.r2, r.r2, loc.imm(1), loc.imm(0x80 | 63), loc.imm(0))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 2**63-1
def test_generate_sign_bit(self):
self.a.mc.LGHI(r.r2, loc.imm(-1))
self.a.mc.RISBG(r.r2, r.r2, loc.imm(0), loc.imm(0x80 | 0), loc.imm(0))
self.a.jmpto(r.r14)
assert run_asm(self.a) == -2**63
def test_ag_overflow(self):
self.a.mc.BRC(con.ANY, loc.imm(4+8+8))
self.a.mc.write('\x7f' + '\xff' * 7)
self.a.mc.write('\x7f' + '\xff' * 7)
self.a.mc.LARL(r.r5, loc.imm(-8))
self.a.mc.LG(r.r4, loc.addr(8,r.r5))
self.a.mc.AG(r.r4, loc.addr(0,r.r5))
self.a.mc.LGR(r.r2, r.r4)
self.a.jmpto(r.r14)
assert run_asm(self.a) == -2
def test_xor(self):
self.a.mc.XGR(r.r2, r.r2)
self.a.jmpto(r.r14)
assert run_asm(self.a) == 0
def test_literal_pool(self):
gen_func_prolog(self.a.mc)
self.a.mc.BRAS(r.r13, loc.imm(8 + self.mc.BRAS_byte_count))
self.a.mc.write('\x08\x07\x06\x05\x04\x03\x02\x01')
self.a.mc.LG(r.r2, loc.addr(0, r.r13))
gen_func_epilog(self.a.mc)
assert run_asm(self.a) == 0x0807060504030201
def label(self, name, func=False):
if not func:
return LabelCtx(self, name)
return ActivationRecordCtx(self, name)
def patch_branch_imm16(self, base, imm):
imm = (imm & 0xffff) >> 1
self.mc.overwrite(base, chr((imm >> 8) & 0xFF))
self.mc.overwrite(base+1, chr(imm & 0xFF))
def pos(self, name):
return self.mc.ops_offset[name]
def cur(self):
return self.mc.get_relative_pos()
def jump_here(self, func, name):
if func.__name__ == 'BRAS':
self.patch_branch_imm16(self.pos(name)+2, self.cur() - self.pos(name))
else:
raise NotImplementedError
def jump_to(self, reg, label):
val = (self.pos(label) - self.cur())
self.mc.BRAS(reg, loc.imm(val))
def test_stmg(self):
self.mc.LGR(r.r2, r.r15)
self.a.jmpto(r.r14)
print hex(run_asm(self.a))
def test_recursion(self):
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
self.mc.write('\x00\x00\x00\x00\x00\x00\x00\x00')
self.jump_here(self.mc.BRAS, 'lit')
# recurse X times
self.mc.XGR(r.r2, r.r2)
self.mc.LGHI(r.r9, loc.imm(15))
with self.label('L1'):
self.mc.BRAS(r.r14, loc.imm(0))
with ActivationRecordCtx(self, 'rec'):
self.mc.AGR(r.r2, r.r9)
self.mc.AHI(r.r9, loc.imm(-1))
# if not entered recursion, return from activation record
# implicitly generated here by with statement
self.mc.BRC(con.GT, loc.imm(self.pos('rec') - self.cur()))
self.jump_here(self.mc.BRAS, 'L1')
# call rec... recursivly
self.jump_to(r.r14, 'rec')
self.a.jmpto(r.r14)
assert run_asm(self.a) == 120
def test_printf(self):
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
for c in "hello syscall\n":
self.mc.writechar(c)
self.jump_here(self.mc.BRAS, 'lit')
self.mc.LGHI(r.r2, loc.imm(1)) # stderr
self.mc.LA(r.r3, loc.addr(0, r.r13)) # char*
self.mc.LGHI(r.r4, loc.imm(14)) # length
# write sys call
self.mc.SVC(loc.imm(4))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 14
def test_float(self):
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
self.mc.write(BFL(-15.0))
self.jump_here(self.mc.BRAS, 'lit')
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.CGDBR(r.r2, msk.RND_CURMODE, r.f0)
self.a.jmpto(r.r14)
assert run_asm(self.a) == -15
@py.test.mark.parametrize("v1,v2,res", [
( 0.0, 0.0, 0.0),
( -15.0, -15.0, -30.0),
( 1.5, -3.22, -1.72),
( 0.5, 0.0, 0.5),
( 0.0001, -0.0002, -0.0001),
(float('nan'), 1.0, float('nan')),
])
def test_float_to_memory(self, v1, v2, res):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with self.label('lit'):
self.mc.BRAS(r.r13, loc.imm(0))
self.mc.write(BFL(v1))
self.mc.write(BFL(v2))
self.mc.write(ADDR(mem))
self.jump_here(self.mc.BRAS, 'lit')
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.LD(r.f1, loc.addr(8, r.r13))
self.mc.ADBR(r.f0, r.f1)
self.mc.LG(r.r11, loc.addr(16, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
self.a.jmpto(r.r14)
run_asm(self.a)
assert isclose(mem[0],res)
@py.test.mark.parametrize("v1,v2,res", [
( 0.0, 0.0, 0.0),
( -15.0, -15.0, 225.0),
( 0.0, 9876543.21, 0.0),
( -0.5, 14.5, -7.25),
( 0.0001, 2.0, 0.0002),
(float('nan'), 1.0, float('nan')),
])
def test_float_mul_to_memory(self, v1, v2, res):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.float(v1)
pool.float(v2)
pool.addr(mem)
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.MDB(r.f0, loc.addr(8, r.r13))
self.mc.LG(r.r11, loc.addr(16, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
self.a.jmpto(r.r14)
run_asm(self.a)
assert isclose(mem[0],res)
def test_float_load_zero(self):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.addr(mem)
self.mc.LZDR(r.f0)
self.mc.LG(r.r11, loc.addr(0, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
run_asm(self.a)
assert isclose(mem[0], 0.0)
def test_cast_single_float_to_float(self):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.single_float(6.66)
pool.addr(mem)
self.mc.LEY(r.f1, loc.addr(0, r.r13))
## cast short to long!
self.mc.LDEBR(r.f0, r.f1)
self.mc.LG(r.r11, loc.addr(4, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
run_asm(self.a)
assert isclose(mem[0], 6.66, abs_tol=0.05)
def test_cast_int64_to_float(self):
with lltype.scoped_alloc(DOUBLE_ARRAY_PTR.TO, 16) as mem:
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.int64(12345)
pool.addr(mem)
self.mc.LG(r.r12, loc.addr(0, r.r13))
# cast int to float!
self.mc.CDGBR(r.f0, r.r12)
self.mc.LG(r.r11, loc.addr(8, r.r13))
self.mc.STD(r.f0, loc.addr(0, r.r11))
run_asm(self.a)
assert isclose(mem[0], 12345.0)
def test_float_cmp(self):
with ActivationRecordCtx(self):
with LiteralPoolCtx(self) as pool:
pool.float(1.0)
pool.float(2.0)
self.mc.LD(r.f0, loc.addr(0, r.r13))
self.mc.LD(r.f1, loc.addr(8, r.r13))
self.mc.CDBR(r.f0, r.f1)
self.mc.LGHI(r.r2, loc.imm(0))
self.mc.BCR(con.EQ, r.r14) # must not branch
self.mc.LGHI(r.r2, loc.imm(1))
self.a.jmpto(r.r14)
assert run_asm(self.a) == 1
def pushpop_jitframe(self, registers):
self.a._push_core_regs_to_jitframe(self.mc, registers)
self.a._pop_core_regs_from_jitframe(self.mc, registers)
def test_pushpop_jitframe_multiple_optimization(self):
stored = []
loaded = []
def STMG(start, end, addr):
stored.append((start, end))
def STG(reg, addr):
stored.append((reg,))
def LMG(start, end, addr):
loaded.append((start, end))
def LG(reg, addr):
loaded.append((reg,))
self.mc.STMG = STMG
self.mc.STG = STG
self.mc.LMG = LMG
self.mc.LG = LG
# 2-6
self.pushpop_jitframe([r.r2, r.r3, r.r4, r.r5, r.r6, r.r8, r.r10])
assert stored == [(r.r2, r.r6), (r.r8,), (r.r10,)]
assert stored == loaded
stored = []
loaded = []
# two sequences 10-11, 13-14
self.pushpop_jitframe([r.r2, r.r3, r.r10, r.r11])
assert stored == [(r.r2, r.r3), (r.r10, r.r11)]
assert stored == loaded
stored = []
loaded = []
# one sequence and on single
self.pushpop_jitframe([r.r2, r.r3, r.r5])
assert stored == [(r.r2, r.r3), (r.r5,)]
assert stored == loaded
stored = []
loaded = []
# single items
self.pushpop_jitframe(r.MANAGED_REGS[::2])
assert stored == [(x,) for x in r.MANAGED_REGS[::2]]
assert stored == loaded
stored = []
loaded = []
# large sequence 0-5 and one hole between
self.pushpop_jitframe([r.r2, r.r3,
r.r4, r.r5, r.r10, r.r11])
assert stored == [(r.r2, r.r5), (r.r10, r.r11)]
assert stored == loaded
stored = []
loaded = []
# ensure there is just on instruction for the 'best case'
self.pushpop_jitframe(r.MANAGED_REGS)
assert stored == [(r.r2, r.r11)]
assert stored == loaded
stored = []
loaded = []
# just one single
for x in [r.r10, r.r3, r.r2, r.r11]:
self.pushpop_jitframe([x])
assert stored == [(x,)]
assert stored == loaded
stored = []
loaded = []
# unordered
self.pushpop_jitframe([r.r11, r.r8, r.r4, r.r2])
assert stored == [(r.r11,), (r.r8,), (r.r4,), (r.r2,)]
assert stored == loaded
stored = []
loaded = []
class CPU_S390_64(AbstractZARCHCPU):
dont_keepalive_stuff = True
supports_floats = True
from rpython.jit.backend.zarch.registers import JITFRAME_FIXED_SIZE
vector_ext = vector_ext.ZSIMDVectorExt()
backend_name = 'zarch'
IS_64_BIT = True
frame_reg = r.SP
all_reg_indexes = [-1] * 32
for _i, _r in enumerate(r.MANAGED_REGS):
all_reg_indexes[_r.value] = _i
gen_regs = r.MANAGED_REGS
float_regs = r.MANAGED_FP_REGS
load_supported_factors = (1, )
def setup(self):
self.assembler = AssemblerZARCH(self)
@rgc.no_release_gil
def setup_once(self):
self.assembler.setup_once()
@rgc.no_release_gil
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(faildescr, inputargs, operations,
original_loop_token, log, logger)
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."""
for jmp, tgt in looptoken.compiled_loop_token.invalidate_positions:
mc = InstrBuilder()
# needs 4 bytes, ensured by the previous process
mc.b_offset(tgt) # a single instruction
mc.copy_to_raw_memory(jmp)
# positions invalidated
looptoken.compiled_loop_token.invalidate_positions = []
def redirect_call_assembler(self, oldlooptoken, newlooptoken):
self.assembler.redirect_call_assembler(oldlooptoken, newlooptoken)
def cast_ptr_to_int(x):
adr = llmemory.cast_ptr_to_adr(x)
return CPU_S390_64.cast_adr_to_int(adr)
cast_ptr_to_int._annspecialcase_ = 'specialize:arglltype(0)'
cast_ptr_to_int = staticmethod(cast_ptr_to_int)
def build_regalloc(self):
''' NOT_RPYTHON: for tests '''
from rpython.jit.backend.zarch.regalloc import Regalloc
assert self.assembler is not None
return Regalloc(self.assembler)
class CPU_S390_64(AbstractZARCHCPU):
dont_keepalive_stuff = True
supports_floats = True
from rpython.jit.backend.zarch.registers import JITFRAME_FIXED_SIZE
backend_name = 'zarch'
IS_64_BIT = True
frame_reg = r.SP
all_reg_indexes = [-1] * 32
for _i, _r in enumerate(r.MANAGED_REGS):
all_reg_indexes[_r.value] = _i
gen_regs = r.MANAGED_REGS
float_regs = r.MANAGED_FP_REGS
load_supported_factors = (1,)
def setup(self):
self.assembler = AssemblerZARCH(self)
@rgc.no_release_gil
def setup_once(self):
self.assembler.setup_once()
@rgc.no_release_gil
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(faildescr, inputargs, operations,
original_loop_token, log, logger)
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."""
for jmp, tgt in looptoken.compiled_loop_token.invalidate_positions:
mc = InstrBuilder()
# needs 4 bytes, ensured by the previous process
mc.b_offset(tgt) # a single instruction
mc.copy_to_raw_memory(jmp)
# positions invalidated
looptoken.compiled_loop_token.invalidate_positions = []
def redirect_call_assembler(self, oldlooptoken, newlooptoken):
self.assembler.redirect_call_assembler(oldlooptoken, newlooptoken)
def cast_ptr_to_int(x):
adr = llmemory.cast_ptr_to_adr(x)
return CPU_S390_64.cast_adr_to_int(adr)
cast_ptr_to_int._annspecialcase_ = 'specialize:arglltype(0)'
cast_ptr_to_int = staticmethod(cast_ptr_to_int)
def build_regalloc(self):
''' NOT_RPYTHON: for tests '''
from rpython.jit.backend.zarch.regalloc import Regalloc
assert self.assembler is not None
return Regalloc(self.assembler)