/rpython/jit/backend/arm/test/test_regalloc.py
Python | 796 lines | 758 code | 35 blank | 3 comment | 3 complexity | c231b510288da04915d264d262005050 MD5 | raw file
Possible License(s): AGPL-3.0, BSD-3-Clause, Apache-2.0
- """ Tests for register allocation for common constructs
- """
- import py
- from rpython.jit.metainterp.history import (BasicFailDescr,
- BasicFinalDescr,
- JitCellToken,
- TargetToken)
- from rpython.jit.metainterp.resoperation import rop
- from rpython.jit.backend.llsupport.descr import GcCache
- from rpython.jit.backend.detect_cpu import getcpuclass
- from rpython.jit.backend.arm.regalloc import Regalloc, ARMFrameManager
- from rpython.jit.backend.llsupport.regalloc import is_comparison_or_ovf_op
- from rpython.jit.tool.oparser import parse
- from rpython.rtyper.lltypesystem import lltype, llmemory
- from rpython.rtyper.annlowlevel import llhelper
- from rpython.rtyper.lltypesystem import rstr
- from rpython.rtyper import rclass
- from rpython.jit.codewriter.effectinfo import EffectInfo
- from rpython.jit.codewriter import longlong
- from rpython.jit.backend.llsupport.test.test_regalloc_integration import BaseTestRegalloc
- def test_is_comparison_or_ovf_op():
- assert not is_comparison_or_ovf_op(rop.INT_ADD)
- assert is_comparison_or_ovf_op(rop.INT_ADD_OVF)
- assert is_comparison_or_ovf_op(rop.INT_EQ)
- CPU = getcpuclass()
- class MockGcDescr(GcCache):
- def get_funcptr_for_new(self):
- return 123
- get_funcptr_for_newarray = get_funcptr_for_new
- get_funcptr_for_newstr = get_funcptr_for_new
- get_funcptr_for_newunicode = get_funcptr_for_new
- def rewrite_assembler(self, cpu, operations):
- pass
- class MockAssembler(object):
- gcrefs = None
- _float_constants = None
- def __init__(self, cpu=None, gc_ll_descr=None):
- self.movs = []
- self.performs = []
- self.lea = []
- if cpu is None:
- cpu = CPU(None, None)
- cpu.setup_once()
- self.cpu = cpu
- if gc_ll_descr is None:
- gc_ll_descr = MockGcDescr(False)
- self.cpu.gc_ll_descr = gc_ll_descr
- def dump(self, *args):
- pass
- def regalloc_mov(self, from_loc, to_loc):
- self.movs.append((from_loc, to_loc))
- def regalloc_perform(self, op, arglocs, resloc):
- self.performs.append((op, arglocs, resloc))
- def regalloc_perform_discard(self, op, arglocs):
- self.performs.append((op, arglocs))
- def load_effective_addr(self, *args):
- self.lea.append(args)
- class RegAllocForTests(Regalloc):
- position = 0
- def _compute_next_usage(self, v, _):
- return -1
- def get_zero_division_error(self):
- # for tests, a random emulated ll_inst will do
- ll_inst = lltype.malloc(rclass.OBJECT)
- ll_inst.typeptr = lltype.malloc(rclass.OBJECT_VTABLE,
- immortal=True)
- _zer_error_vtable = llmemory.cast_ptr_to_adr(ll_inst.typeptr)
- zer_vtable = self.cast_adr_to_int(_zer_error_vtable)
- zer_inst = lltype.cast_opaque_ptr(llmemory.GCREF, ll_inst)
- return zer_vtable, zer_inst
- class CustomBaseTestRegalloc(BaseTestRegalloc):
- cpu = CPU(None, None)
- cpu.setup_once()
- def raising_func(i):
- if i:
- raise LLException(zero_division_error,
- zero_division_value)
- FPTR = lltype.Ptr(lltype.FuncType([lltype.Signed], lltype.Void))
- raising_fptr = llhelper(FPTR, raising_func)
- def f(a):
- return 23
- FPTR = lltype.Ptr(lltype.FuncType([lltype.Signed], lltype.Signed))
- f_fptr = llhelper(FPTR, f)
- f_calldescr = cpu.calldescrof(FPTR.TO, FPTR.TO.ARGS, FPTR.TO.RESULT,
- EffectInfo.MOST_GENERAL)
- zero_division_tp, zero_division_value = get_zero_division_error(cpu)
- zd_addr = cpu.cast_int_to_adr(zero_division_tp)
- zero_division_error = llmemory.cast_adr_to_ptr(zd_addr,
- lltype.Ptr(rclass.OBJECT_VTABLE))
- raising_calldescr = cpu.calldescrof(FPTR.TO, FPTR.TO.ARGS, FPTR.TO.RESULT,
- EffectInfo.MOST_GENERAL)
- targettoken = TargetToken()
- targettoken2 = TargetToken()
- fdescr1 = BasicFailDescr(1)
- fdescr2 = BasicFailDescr(2)
- fdescr3 = BasicFailDescr(3)
- def setup_method(self, meth):
- self.targettoken._ll_loop_code = 0
- self.targettoken2._ll_loop_code = 0
- def f1(x):
- return x + 1
- def f2(x, y):
- return x * y
- def f10(*args):
- assert len(args) == 10
- return sum(args)
- F1PTR = lltype.Ptr(lltype.FuncType([lltype.Signed], lltype.Signed))
- F2PTR = lltype.Ptr(lltype.FuncType([lltype.Signed] * 2, lltype.Signed))
- F10PTR = lltype.Ptr(lltype.FuncType([lltype.Signed] * 10, lltype.Signed))
- f1ptr = llhelper(F1PTR, f1)
- f2ptr = llhelper(F2PTR, f2)
- f10ptr = llhelper(F10PTR, f10)
- f1_calldescr = cpu.calldescrof(F1PTR.TO, F1PTR.TO.ARGS, F1PTR.TO.RESULT,
- EffectInfo.MOST_GENERAL)
- f2_calldescr = cpu.calldescrof(F2PTR.TO, F2PTR.TO.ARGS, F2PTR.TO.RESULT,
- EffectInfo.MOST_GENERAL)
- f10_calldescr = cpu.calldescrof(F10PTR.TO, F10PTR.TO.ARGS,
- F10PTR.TO.RESULT, EffectInfo.MOST_GENERAL)
- typesystem = 'lltype'
- namespace = locals().copy()
- class TestRegallocSimple(CustomBaseTestRegalloc):
- def test_simple_loop(self):
- ops = '''
- [i0]
- label(i0, descr=targettoken)
- i1 = int_add(i0, 1)
- i2 = int_lt(i1, 20)
- guard_true(i2) [i1]
- jump(i1, descr=targettoken)
- '''
- self.interpret(ops, [0])
- assert self.getint(0) == 20
- def test_two_loops_and_a_bridge(self):
- ops = '''
- [i0, i1, i2, i3]
- label(i0, i1, i2, i3, descr=targettoken)
- i4 = int_add(i0, 1)
- i5 = int_lt(i4, 20)
- guard_true(i5) [i4, i1, i2, i3]
- jump(i4, i1, i2, i3, descr=targettoken)
- '''
- loop = self.interpret(ops, [0, 0, 0, 0])
- ops2 = '''
- [i5, i6, i7, i8]
- label(i5, descr=targettoken2)
- i1 = int_add(i5, 1)
- i3 = int_add(i1, 1)
- i4 = int_add(i3, 1)
- i2 = int_lt(i4, 30)
- guard_true(i2) [i4]
- jump(i4, descr=targettoken2)
- '''
- loop2 = self.interpret(ops2, [0, 0, 0, 0])
- bridge_ops = '''
- [i4]
- jump(i4, i4, i4, i4, descr=targettoken)
- '''
- bridge = self.attach_bridge(bridge_ops, loop2, 5)
- self.run(loop2, 0, 0, 0, 0)
- assert self.getint(0) == 31
- assert self.getint(1) == 30
- assert self.getint(2) == 30
- assert self.getint(3) == 30
- def test_pointer_arg(self):
- ops = '''
- [i0, p0]
- label(i0, p0, descr=targettoken)
- i1 = int_add(i0, 1)
- i2 = int_lt(i1, 10)
- guard_true(i2) [p0]
- jump(i1, p0, descr=targettoken)
- '''
- S = lltype.GcStruct('S')
- ptr = lltype.malloc(S)
- self.interpret(ops, [0, ptr])
- assert self.getptr(0, lltype.Ptr(S)) == ptr
- def test_exception_bridge_no_exception(self):
- ops = '''
- [i0]
- i1 = same_as_i(1)
- call_n(ConstClass(raising_fptr), i0, descr=raising_calldescr)
- guard_exception(ConstClass(zero_division_error)) [i1]
- finish(0)
- '''
- bridge_ops = '''
- [i3]
- i2 = same_as_i(2)
- guard_no_exception() [i2]
- finish(1)
- '''
- loop = self.interpret(ops, [0])
- assert self.getint(0) == 1
- bridge = self.attach_bridge(bridge_ops, loop, 2)
- self.run(loop, 0)
- assert self.getint(0) == 1
- def test_inputarg_unused(self):
- ops = '''
- [i0]
- finish(1)
- '''
- self.interpret(ops, [0])
- # assert did not explode
- def test_nested_guards(self):
- ops = '''
- [i0, i1]
- guard_true(i0) [i0, i1]
- finish(4)
- '''
- bridge_ops = '''
- [i0, i1]
- guard_true(i0) [i0, i1]
- finish(3)
- '''
- loop = self.interpret(ops, [0, 10])
- assert self.getint(0) == 0
- assert self.getint(1) == 10
- bridge = self.attach_bridge(bridge_ops, loop, 0)
- self.run(loop, 0, 10)
- assert self.getint(0) == 0
- assert self.getint(1) == 10
- def test_nested_unused_arg(self):
- ops = '''
- [i0, i1]
- guard_true(i0) [i0, i1]
- finish(1)
- '''
- loop = self.interpret(ops, [0, 1])
- assert self.getint(0) == 0
- bridge_ops = '''
- [i0, i1]
- guard_true(i0) [i0]
- finish(1)
- '''
- self.attach_bridge(bridge_ops, loop, 0)
- self.run(loop, 0, 1)
- def test_spill_for_constant(self):
- ops = '''
- [i0, i1, i2, i3]
- label(i0, i1, i2, i3, descr=targettoken)
- i4 = int_add(3, i1)
- i5 = int_lt(i4, 30)
- guard_true(i5) [i0, i4, i2, i3]
- jump(1, i4, 3, 4, descr=targettoken)
- '''
- self.interpret(ops, [0, 0, 0, 0])
- assert self.getints(4) == [1, 30, 3, 4]
- def test_spill_for_constant_lshift(self):
- ops = '''
- [i0, i2, i1, i3]
- label(i0, i2, i1, i3, descr=targettoken)
- i4 = int_lshift(1, i1)
- i5 = int_add(1, i1)
- i6 = int_lt(i5, 30)
- guard_true(i6) [i4, i5, i2, i3]
- jump(i4, 3, i5, 4, descr=targettoken)
- '''
- self.interpret(ops, [0, 0, 0, 0])
- assert self.getints(4) == [1<<29, 30, 3, 4]
- ops = '''
- [i0, i1, i2, i3]
- label(i0, i1, i2, i3, descr=targettoken)
- i4 = int_lshift(1, i1)
- i5 = int_add(1, i1)
- i6 = int_lt(i5, 30)
- guard_true(i6) [i4, i5, i2, i3]
- jump(i4, i5, 3, 4, descr=targettoken)
- '''
- self.interpret(ops, [0, 0, 0, 0])
- assert self.getints(4) == [1<<29, 30, 3, 4]
- ops = '''
- [i0, i3, i1, i2]
- label(i0, i3, i1, i2, descr=targettoken)
- i4 = int_lshift(1, i1)
- i5 = int_add(1, i1)
- i6 = int_lt(i5, 30)
- guard_true(i6) [i4, i5, i2, i3]
- jump(i4, 4, i5, 3, descr=targettoken)
- '''
- self.interpret(ops, [0, 0, 0, 0])
- assert self.getints(4) == [1<<29, 30, 3, 4]
- def test_result_selected_reg_via_neg(self):
- ops = '''
- [i0, i1, i2, i3]
- label(i0, i1, i2, i3, descr=targettoken)
- i6 = int_neg(i2)
- i7 = int_add(1, i1)
- i4 = int_lt(i7, 10)
- guard_true(i4) [i0, i6, i7]
- jump(1, i7, i2, i6, descr=targettoken)
- '''
- self.interpret(ops, [0, 0, 3, 0])
- assert self.getints(3) == [1, -3, 10]
- def test_compare_memory_result_survives(self):
- ops = '''
- [i0, i1, i2, i3]
- label(i0, i1, i2, i3, descr=targettoken)
- i4 = int_lt(i0, i1)
- i5 = int_add(i3, 1)
- i6 = int_lt(i5, 30)
- guard_true(i6) [i4]
- jump(i0, i1, i4, i5, descr=targettoken)
- '''
- self.interpret(ops, [0, 10, 0, 0])
- assert self.getint(0) == 1
- def test_jump_different_args(self):
- ops = '''
- [i0, i15, i16, i18, i1, i2, i3]
- label(i0, i15, i16, i18, i1, i2, i3, descr=targettoken)
- i4 = int_add(i3, 1)
- i5 = int_lt(i4, 20)
- guard_true(i5) [i2, i1]
- jump(i0, i18, i15, i16, i2, i1, i4, descr=targettoken)
- '''
- self.interpret(ops, [0, 1, 2, 3, 0, 0, 0])
- def test_op_result_unused(self):
- ops = '''
- [i0, i1]
- i2 = int_add(i0, i1)
- finish(0)
- '''
- self.interpret(ops, [0, 0])
- def test_guard_value_two_boxes(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6, i7]
- guard_value(i6, i1) [i0, i2, i3, i4, i5, i6]
- finish(i0)
- '''
- self.interpret(ops, [0, 0, 0, 0, 0, 0, 0, 0])
- assert self.getint(0) == 0
- def test_bug_wrong_stack_adj(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6, i7, i8]
- i9 = same_as_i(0)
- guard_true(i0) [i9, i0, i1, i2, i3, i4, i5, i6, i7, i8]
- finish(1)
- '''
- loop = self.interpret(ops, [0, 1, 2, 3, 4, 5, 6, 7, 8])
- assert self.getint(0) == 0
- bridge_ops = '''
- [i9, i0, i1, i2, i3, i4, i5, i6, i7, i8]
- call_n(ConstClass(raising_fptr), 0, descr=raising_calldescr)
- guard_true(i0) [i0, i1, i2, i3, i4, i5, i6, i7, i8]
- finish(1)
- '''
- self.attach_bridge(bridge_ops, loop, 1)
- self.run(loop, 0, 1, 2, 3, 4, 5, 6, 7, 8)
- assert self.getints(9) == range(9)
- def test_loopargs(self):
- ops = """
- [i0, i1, i2, i3]
- i4 = int_add(i0, i1)
- jump(i4, i1, i2, i3)
- """
- regalloc = self.prepare_loop(ops)
- assert len(regalloc.rm.reg_bindings) == 0
- assert len(regalloc.frame_manager.bindings) == 4
- def test_loopargs_2(self):
- ops = """
- [i0, i1, i2, i3]
- i4 = int_add(i0, i1)
- guard_false(i0) [i4, i1, i2, i3]
- """
- regalloc = self.prepare_loop(ops)
- assert len(regalloc.frame_manager.bindings) == 4
- def test_loopargs_3(self):
- ops = """
- [i0, i1, i2, i3]
- i4 = int_add(i0, i1)
- guard_true(i4) [i0, i1, i2, i3, i4]
- jump(i4, i1, i2, i3)
- """
- regalloc = self.prepare_loop(ops)
- assert len(regalloc.frame_manager.bindings) == 4
- class TestRegallocCompOps(CustomBaseTestRegalloc):
- def test_cmp_op_0(self):
- ops = '''
- [i0, i3]
- i1 = same_as_i(1)
- i2 = int_lt(i0, 100)
- guard_true(i3) [i1, i2]
- finish(i2)
- '''
- self.interpret(ops, [0, 1])
- assert self.getint(0) == 1
- class TestRegallocMoreRegisters(CustomBaseTestRegalloc):
- cpu = CustomBaseTestRegalloc.cpu
- targettoken = TargetToken()
- S = lltype.GcStruct('S', ('field', lltype.Char))
- fielddescr = cpu.fielddescrof(S, 'field')
- A = lltype.GcArray(lltype.Char)
- I = lltype.GcArray(lltype.Signed)
- arraydescr = cpu.arraydescrof(A)
- arraydescr_i = cpu.arraydescrof(I)
- namespace = locals().copy()
- def test_int_is_true(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6, i7]
- i10 = int_is_true(i0)
- i11 = int_is_true(i1)
- i12 = int_is_true(i2)
- i13 = int_is_true(i3)
- i14 = int_is_true(i4)
- i15 = int_is_true(i5)
- i16 = int_is_true(i6)
- i17 = int_is_true(i7)
- guard_true(i0) [i10, i11, i12, i13, i14, i15, i16, i17]
- '''
- self.interpret(ops, [0, 42, 12, 0, 13, 0, 0, 3333])
- assert self.getints(8) == [0, 1, 1, 0, 1, 0, 0, 1]
- def test_comparison_ops(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6]
- i10 = int_lt(i0, i1)
- i11 = int_le(i2, i3)
- i12 = int_ge(i4, i5)
- i13 = int_eq(i5, i6)
- i14 = int_gt(i6, i2)
- i15 = int_ne(i2, i6)
- guard_true(i0) [i10, i11, i12, i13, i14, i15]
- '''
- self.interpret(ops, [0, 1, 2, 3, 4, 5, 6])
- assert self.getints(6) == [1, 1, 0, 0, 1, 1]
- def test_strsetitem(self):
- ops = '''
- [p0, i]
- strsetitem(p0, 1, i)
- finish()
- '''
- llstr = rstr.mallocstr(10)
- self.interpret(ops, [llstr, ord('a')])
- assert llstr.chars[1] == 'a'
- def test_setfield_char(self):
- ops = '''
- [p0, i]
- setfield_gc(p0, i, descr=fielddescr)
- finish()
- '''
- s = lltype.malloc(self.S)
- self.interpret(ops, [s, ord('a')])
- assert s.field == 'a'
- def test_setarrayitem_gc(self):
- ops = '''
- [p0, i]
- setarrayitem_gc(p0, 1, i, descr=arraydescr)
- finish()
- '''
- s = lltype.malloc(self.A, 3)
- self.interpret(ops, [s, ord('a')])
- assert s[1] == 'a'
- def test_setarrayitem2_gc(self):
- ops = '''
- [p0, i, i1]
- setarrayitem_gc(p0, i1, i, descr=arraydescr)
- finish()
- '''
- s = lltype.malloc(self.A, 3)
- self.interpret(ops, [s, ord('a'), 1])
- assert s[1] == 'a'
- def test_setarrayitem3_gc(self):
- ops = '''
- [p0, i0, i1]
- setarrayitem_gc(p0, i1, i0, descr=arraydescr_i)
- finish()
- '''
- s = lltype.malloc(self.I, 3)
- self.interpret(ops, [s, 1234567890, 1])
- assert s[1] == 1234567890
- def test_setarrayitem4_gc(self):
- ops = '''
- [p0, i0]
- setarrayitem_gc(p0, 1, i0, descr=arraydescr_i)
- finish()
- '''
- s = lltype.malloc(self.I, 3)
- self.interpret(ops, [s, 1234567890])
- assert s[1] == 1234567890
- class TestRegallocFloats(CustomBaseTestRegalloc):
- def test_float_add(self):
- if not self.cpu.supports_floats:
- py.test.skip("requires floats")
- ops = '''
- [f0, f1]
- f2 = float_add(f0, f1)
- guard_value(f0, f1) [f2, f0, f1]
- '''
- self.interpret(ops, [3.0, 1.5])
- assert self.getfloats(3) == [4.5, 3.0, 1.5]
- def test_float_adds_stack(self):
- if not self.cpu.supports_floats:
- py.test.skip("requires floats")
- ops = '''
- [f0, f1, f2, f3, f4, f5, f6, f7, f8]
- f9 = float_add(f0, f1)
- f10 = float_add(f8, 3.5)
- guard_value(f0, f1) [f9, f10, f2, f3, f4, f5, f6, f7, f8]
- '''
- self.interpret(ops, [0.1, .2, .3, .4, .5, .6, .7, .8, .9])
- assert self.getfloats(9) == [.1 + .2, .9 + 3.5, .3,
- .4, .5, .6, .7, .8, .9]
- def test_lt_const(self):
- if not self.cpu.supports_floats:
- py.test.skip("requires floats")
- ops = '''
- [f0]
- i1 = float_lt(3.5, f0)
- finish(i1)
- '''
- self.interpret(ops, [0.1])
- assert self.getint(0) == 0
- def test_bug_float_is_true_stack(self):
- if not self.cpu.supports_floats:
- py.test.skip("requires floats")
- # NB. float_is_true no longer exists. Unsure if keeping this test
- # makes sense any more.
- ops = '''
- [f0, f1, f2, f3, f4, f5, f6, f7, f8, f9]
- i0 = float_ne(f0, 0.0)
- i1 = float_ne(f1, 0.0)
- i2 = float_ne(f2, 0.0)
- i3 = float_ne(f3, 0.0)
- i4 = float_ne(f4, 0.0)
- i5 = float_ne(f5, 0.0)
- i6 = float_ne(f6, 0.0)
- i7 = float_ne(f7, 0.0)
- i8 = float_ne(f8, 0.0)
- i9 = float_ne(f9, 0.0)
- guard_false(i9), [i0, i1, i2, i3, i4, i5, i6, i7, i8, i9]
- '''
- self.interpret(ops, [0.0, .1, .2, .3, .4, .5, .6, .7, .8, .9])
- assert self.getints(9) == [0, 1, 1, 1, 1, 1, 1, 1, 1]
- class TestRegAllocCallAndStackDepth(CustomBaseTestRegalloc):
- def expected_param_depth(self, num_args):
- # Assumes the arguments are all non-float
- return num_args
- def test_one_call(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6, i7, i8, i9]
- i10 = call_i(ConstClass(f1ptr), i0, descr=f1_calldescr)
- guard_false(i10), [i10, i1, i2, i3, i4, i5, i6, i7, i8, i9]
- '''
- self.interpret(ops, [4, 7, 9, 9, 9, 9, 9, 9, 9, 9])
- assert self.getints(10) == [5, 7, 9, 9, 9, 9, 9, 9, 9, 9]
- def test_two_calls(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6, i7, i8, i9]
- i10 = call_i(ConstClass(f1ptr), i0, descr=f1_calldescr)
- i11 = call_i(ConstClass(f2ptr), i10, i1, descr=f2_calldescr)
- guard_false(i11) [i11, i1, i2, i3, i4, i5, i6, i7, i8, i9]
- '''
- self.interpret(ops, [4, 7, 9, 9, 9, 9, 9, 9, 9, 9])
- assert self.getints(10) == [5 * 7, 7, 9, 9, 9, 9, 9, 9, 9, 9]
- def test_call_many_arguments(self):
- ops = '''
- [i0, i1, i2, i3, i4, i5, i6, i7]
- i8 = call_i(ConstClass(f10ptr), 1, i0, i1, i2, i3, i4, i5, i6, i7, 10, descr=f10_calldescr)
- finish(i8)
- '''
- self.interpret(ops, [2, 3, 4, 5, 6, 7, 8, 9])
- assert self.getint(0) == 55
- def test_bridge_calls_1(self):
- ops = '''
- [i0, i1]
- i2 = call_i(ConstClass(f1ptr), i0, descr=f1_calldescr)
- guard_value(i2, 0, descr=fdescr1) [i2, i1]
- finish(i1)
- '''
- loop = self.interpret(ops, [4, 7])
- assert self.getint(0) == 5
- ops = '''
- [i2, i1]
- i3 = call_i(ConstClass(f2ptr), i2, i1, descr=f2_calldescr)
- finish(i3)
- '''
- self.attach_bridge(ops, loop, -2)
- self.run(loop, 4, 7)
- assert self.getint(0) == 5 * 7
- def test_bridge_calls_2(self):
- ops = '''
- [i0, i1]
- i2 = call_i(ConstClass(f2ptr), i0, i1, descr=f2_calldescr)
- guard_value(i2, 0, descr=fdescr1) [i2]
- finish(i1)
- '''
- loop = self.interpret(ops, [4, 7])
- assert self.getint(0) == 4 * 7
- ops = '''
- [i2]
- i3 = call_i(ConstClass(f1ptr), i2, descr=f1_calldescr)
- finish(i3)
- '''
- self.attach_bridge(ops, loop, -2)
- self.run(loop, 4, 7)
- assert self.getint(0) == 29
- class TestJumps(TestRegallocSimple):
- def test_jump_with_consts(self):
- loop = """
- [i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, i11, i12, i13, i14]
- label(i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, i11, i12, i13, i14, descr=targettoken)
- jump(i1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, descr=targettoken)
- """
- self.interpret(loop, range(15), run=False)
- # ensure compiling this loop works
- assert 1
- def test_from_loop_to_loop(self):
- def assembler_helper(failindex, virtualizable):
- return 3
- FUNCPTR = lltype.Ptr(lltype.FuncType([lltype.Signed, llmemory.GCREF],
- lltype.Signed))
- class FakeJitDriverSD:
- index_of_virtualizable = -1
- _assembler_helper_ptr = llhelper(FUNCPTR, assembler_helper)
- assembler_helper_adr = llmemory.cast_ptr_to_adr(
- _assembler_helper_ptr)
- FakeJitDriverSD.portal_calldescr = self.cpu.calldescrof(
- lltype.Ptr(lltype.FuncType([lltype.Signed], lltype.Signed)), \
- [lltype.Signed], lltype.Signed, EffectInfo.MOST_GENERAL)
- self.cpu.done_with_this_frame_descr_int = BasicFinalDescr()
- loop1 = """
- [i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10]
- i11 = int_add(i0, i1)
- guard_false(i0) [i11, i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10]
- """
- large = self.interpret(loop1, range(11), run=False)
- large._jitcelltoken.outermost_jitdriver_sd = FakeJitDriverSD()
- self.namespace['looptoken'] = large._jitcelltoken
- assert self.namespace['looptoken']._ll_function_addr != 0
- loop2 = """
- [i0]
- i1 = force_token()
- i2 = call_assembler_i(1,2,3,4,5,6,7,8,9,10,11, descr=looptoken)
- guard_not_forced() [i0]
- guard_false(i0) [i0, i2]
- """
- self.interpret(loop2, [110])
- assert self.getint(0) == 110
- assert self.getint(1) == 3
- def test_far_far_jump(self):
- ops = """
- [i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10]
- label(i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, descr=targettoken)
- i11 = int_add(i0, 1)
- i12 = int_lt(i11, 2)
- i13 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i14 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i15 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i16 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i17 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i18 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i19 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i20 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i21 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i22 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i23 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i24 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i26 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i27 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i28 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i29 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- i30 = call_i(ConstClass(f_fptr), i12, descr=f_calldescr)
- guard_true(i12) [i11, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10]
- jump(i11, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, descr=targettoken)
- """
- self.interpret(ops, range(11))
- assert self.getint(0) == 2 # and not segfault()
- class TestStrOps(CustomBaseTestRegalloc):
- def test_newstr(self):
- ops = """
- [i0]
- p1 = newstr(300)
- i2 = strlen(p1)
- finish(i2)
- """
- self.interpret(ops, [0])
- assert self.getint(0) == 300
- ops = """
- [i0]
- p1 = newstr(i0)
- i2 = strlen(p1)
- finish(i2)
- """
- self.interpret(ops, [300])
- assert self.getint(0) == 300
- def test_strlen(self):
- s = rstr.mallocstr(300)
- ops = """
- [p0]
- i1 = strlen(p0)
- finish(i1)
- """
- self.interpret(ops, [s])
- assert self.getint(0) == 300
- def test_len_of_newstr(self):
- ops = """
- []
- p0 = newstr(300)
- finish(p0)
- """
- self.interpret(ops, [])
- string = self.getptr(0, lltype.Ptr(rstr.STR))
- assert len(string.chars) == 300