import py import pytest import sys import re import pytest from rpython.rlib.rarithmetic import intmask from rpython.rlib.rarithmetic import LONG_BIT from rpython.rtyper import rclass from rpython.rtyper.lltypesystem import lltype from rpython.jit.metainterp.optimize import InvalidLoop from rpython.jit.metainterp.optimizeopt.test.test_util import ( BaseTest, convert_old_style_to_targets, FakeJitDriverStaticData) from rpython.jit.metainterp.history import ( JitCellToken, ConstInt, get_const_ptr_for_string) from rpython.jit.metainterp import executor, compile from rpython.jit.metainterp.resoperation import ( rop, ResOperation, InputArgInt, OpHelpers, InputArgRef) from rpython.jit.metainterp.test.test_resume import ( ResumeDataFakeReader, MyMetaInterp) from rpython.jit.tool.oparser import parse, convert_loop_to_trace # ____________________________________________________________ class BaseTestBasic(BaseTest): enable_opts = "intbounds:rewrite:virtualize:string:earlyforce:pure:heap" def optimize_loop(self, ops, optops, call_pure_results=None): loop = self.parse(ops) token = JitCellToken() if loop.operations[-1].getopnum() == rop.JUMP: loop.operations[-1].setdescr(token) exp = parse(optops, namespace=self.namespace.copy()) expected = convert_old_style_to_targets(exp, jump=True) call_pure_results = self._convert_call_pure_results(call_pure_results) trace = convert_loop_to_trace(loop, self.metainterp_sd) compile_data = compile.SimpleCompileData( trace, call_pure_results=call_pure_results, enable_opts=self.enable_opts) jitdriver_sd = FakeJitDriverStaticData() info, ops = compile_data.optimize_trace(self.metainterp_sd, jitdriver_sd, {}) label_op = ResOperation(rop.LABEL, info.inputargs) loop.inputargs = info.inputargs loop.operations = [label_op] + ops self.loop = loop self.assert_equal(loop, expected) class TestOptimizeBasic(BaseTestBasic): # ---------- def test_remove_guard_class_1(self): ops = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] guard_class(p0, ConstClass(node_vtable)) [] jump(p0) """ expected = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] jump(p0) """ self.optimize_loop(ops, expected) def test_remove_guard_class_2(self): ops = """ [i0] p0 = new_with_vtable(descr=nodesize) escape_n(p0) guard_class(p0, ConstClass(node_vtable)) [] jump(i0) """ expected = """ [i0] p0 = new_with_vtable(descr=nodesize) escape_n(p0) jump(i0) """ self.optimize_loop(ops, expected) def test_remove_guard_class_constant(self): ops = """ [i0] p0 = same_as_r(ConstPtr(myptr)) guard_class(p0, ConstClass(node_vtable)) [] jump(i0) """ expected = """ [i0] jump(i0) """ self.optimize_loop(ops, expected) def test_remove_guard_value_if_constant(self): ops = """ [p1] guard_value(p1, ConstPtr(myptr)) [] guard_value(p1, ConstPtr(myptr)) [] jump(ConstPtr(myptr)) """ expected = """ [p1] guard_value(p1, ConstPtr(myptr)) [] jump(ConstPtr(myptr)) """ self.optimize_loop(ops, expected) def test_ooisnull_oononnull_1(self): ops = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] guard_nonnull(p0) [] jump(p0) """ expected = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] jump(p0) """ self.optimize_loop(ops, expected) def test_ooisnull_oononnull_2(self): ops = """ [p0] guard_nonnull(p0) [] guard_nonnull(p0) [] jump(p0) """ expected = """ [p0] guard_nonnull(p0) [] jump(p0) """ self.optimize_loop(ops, expected) def test_ooisnull_on_null_ptr_1(self): ops = """ [] p0 = escape_r() guard_isnull(p0) [] guard_isnull(p0) [] jump() """ expected = """ [] p0 = escape_r() guard_isnull(p0) [] jump() """ self.optimize_loop(ops, expected) def test_ooisnull_oononnull_via_virtual(self): ops = """ [p0] pv = new_with_vtable(descr=nodesize) setfield_gc(pv, p0, descr=valuedescr) guard_nonnull(p0) [] p1 = getfield_gc_r(pv, descr=valuedescr) guard_nonnull(p1) [] jump(p0) """ expected = """ [p0] guard_nonnull(p0) [] jump(p0) """ self.optimize_loop(ops, expected) def test_oois_1(self): ops = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] i0 = instance_ptr_ne(p0, NULL) guard_true(i0) [] i1 = instance_ptr_eq(p0, NULL) guard_false(i1) [] i2 = instance_ptr_ne(NULL, p0) guard_true(i0) [] i3 = instance_ptr_eq(NULL, p0) guard_false(i1) [] jump(p0) """ expected = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] jump(p0) """ self.optimize_loop(ops, expected) def test_instance_ptr_eq_is_symmetric(self): ops = """ [p0, p1] i0 = instance_ptr_eq(p0, p1) guard_false(i0) [] i1 = instance_ptr_eq(p1, p0) guard_false(i1) [] jump(p0, p1) """ expected = """ [p0, p1] i0 = instance_ptr_eq(p0, p1) guard_false(i0) [] jump(p0, p1) """ self.optimize_loop(ops, expected) ops = """ [p0, p1] i0 = instance_ptr_ne(p0, p1) guard_true(i0) [] i1 = instance_ptr_ne(p1, p0) guard_true(i1) [] jump(p0, p1) """ expected = """ [p0, p1] i0 = instance_ptr_ne(p0, p1) guard_true(i0) [] jump(p0, p1) """ self.optimize_loop(ops, expected) def test_nonnull_1(self): ops = """ [p0] setfield_gc(p0, 5, descr=valuedescr) # forces p0 != NULL i0 = ptr_ne(p0, NULL) guard_true(i0) [] i1 = ptr_eq(p0, NULL) guard_false(i1) [] i2 = ptr_ne(NULL, p0) guard_true(i0) [] i3 = ptr_eq(NULL, p0) guard_false(i1) [] guard_nonnull(p0) [] jump(p0) """ expected = """ [p0] setfield_gc(p0, 5, descr=valuedescr) jump(p0) """ self.optimize_loop(ops, expected) def test_constptr_guard_value(self): ops = """ [] p1 = escape_r() guard_value(p1, ConstPtr(myptr)) [] jump() """ self.optimize_loop(ops, ops) def test_p123_simple(self): ops = """ [i1, p2, p3] i3 = getfield_gc_i(p3, descr=valuedescr) escape_n(i3) p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i1, descr=valuedescr) jump(i1, p1, p2) """ # We cannot track virtuals that survive for more than two iterations. self.optimize_loop(ops, ops) def test_p123_nested(self): ops = """ [i1, p2, p3] i3 = getfield_gc_i(p3, descr=valuedescr) escape_n(i3) p1 = new_with_vtable(descr=nodesize) p1sub = new_with_vtable(descr=nodesize2) setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p1sub, i1, descr=valuedescr) setfield_gc(p1, p1sub, descr=nextdescr) jump(i1, p1, p2) """ expected = """ [i1, p2, p3] i3 = getfield_gc_i(p3, descr=valuedescr) escape_n(i3) p1 = new_with_vtable(descr=nodesize) p1sub = new_with_vtable(descr=nodesize2) setfield_gc(p1sub, i1, descr=valuedescr) setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p1, p1sub, descr=nextdescr) jump(i1, p1, p2) """ # The same as test_p123_simple, but with a virtual containing another # virtual. self.optimize_loop(ops, expected) def test_p123_anti_nested(self): ops = """ [i1, p2, p3] p3sub = getfield_gc_r(p3, descr=nextdescr) i3 = getfield_gc_i(p3sub, descr=valuedescr) escape_n(i3) p2sub = new_with_vtable(descr=nodesize2) setfield_gc(p2sub, i1, descr=valuedescr) setfield_gc(p2, p2sub, descr=nextdescr) p1 = new_with_vtable(descr=nodesize) jump(i1, p1, p2) """ # The same as test_p123_simple, but in the end the "old" p2 contains # a "young" virtual p2sub. Make sure it is all forced. self.optimize_loop(ops, ops) # ---------- def test_keep_guard_no_exception(self): ops = """ [i1] i2 = call_i(i1, descr=nonwritedescr) guard_no_exception() [i1, i2] jump(i2) """ self.optimize_loop(ops, ops) def test_keep_guard_no_exception_with_call_pure_that_is_not_folded(self): ops = """ [i1] i2 = call_pure_i(123456, i1, descr=nonwritedescr) guard_no_exception() [i1, i2] jump(i2) """ expected = """ [i1] i2 = call_i(123456, i1, descr=nonwritedescr) guard_no_exception() [i1, i2] jump(i2) """ self.optimize_loop(ops, expected) def test_remove_guard_no_exception_with_call_pure_on_constant_args(self): arg_consts = [ConstInt(i) for i in (123456, 81)] call_pure_results = {tuple(arg_consts): ConstInt(5)} ops = """ [i1] i3 = same_as_i(81) i2 = call_pure_i(123456, i3, descr=nonwritedescr) guard_no_exception() [i1, i2] jump(i2) """ expected = """ [i1] jump(5) """ self.optimize_loop(ops, expected, call_pure_results) def test_remove_guard_no_exception_with_duplicated_call_pure(self): ops = """ [i1] i2 = call_pure_i(123456, i1, descr=nonwritedescr) guard_no_exception() [i1, i2] i3 = call_pure_i(123456, i1, descr=nonwritedescr) guard_no_exception() [i1, i2, i3] jump(i3) """ expected = """ [i1] i2 = call_i(123456, i1, descr=nonwritedescr) guard_no_exception() [i1, i2] jump(i2) """ self.optimize_loop(ops, expected) # ---------- def test_call_loopinvariant(self): ops = """ [i1] i2 = call_loopinvariant_i(1, i1, descr=nonwritedescr) guard_no_exception() [] guard_value(i2, 1) [] i3 = call_loopinvariant_i(1, i1, descr=nonwritedescr) guard_no_exception() [] guard_value(i3, 1) [] i4 = call_loopinvariant_i(1, i1, descr=nonwritedescr) guard_no_exception() [] guard_value(i4, 1) [] jump(i1) """ expected = """ [i1] i2 = call_i(1, i1, descr=nonwritedescr) guard_no_exception() [] guard_value(i2, 1) [] jump(i1) """ self.optimize_loop(ops, expected) # ---------- def test_virtual_oois(self): ops = """ [p0, p1, p2] guard_nonnull(p0) [] i3 = ptr_ne(p0, NULL) guard_true(i3) [] i4 = ptr_eq(p0, NULL) guard_false(i4) [] i5 = ptr_ne(NULL, p0) guard_true(i5) [] i6 = ptr_eq(NULL, p0) guard_false(i6) [] i7 = ptr_ne(p0, p1) guard_true(i7) [] i8 = ptr_eq(p0, p1) guard_false(i8) [] i9 = ptr_ne(p0, p2) guard_true(i9) [] i10 = ptr_eq(p0, p2) guard_false(i10) [] i11 = ptr_ne(p2, p1) guard_true(i11) [] i12 = ptr_eq(p2, p1) guard_false(i12) [] jump(p0, p1, p2) """ expected2 = """ [p0, p1, p2] guard_nonnull(p0) [] i7 = ptr_ne(p0, p1) guard_true(i7) [] i9 = ptr_ne(p0, p2) guard_true(i9) [] i11 = ptr_ne(p2, p1) guard_true(i11) [] jump(p0, p1, p2) """ self.optimize_loop(ops, expected2) def test_virtual_3(self): ops = """ [i] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i, descr=valuedescr) i0 = getfield_gc_i(p1, descr=valuedescr) i1 = int_add(i0, 1) jump(i1) """ expected = """ [i] i1 = int_add(i, 1) jump(i1) """ self.optimize_loop(ops, expected) def test_virtual_constant_isnull(self): ops = """ [i0] p0 = new_with_vtable(descr=nodesize) setfield_gc(p0, NULL, descr=nextdescr) p2 = getfield_gc_r(p0, descr=nextdescr) i1 = ptr_eq(p2, NULL) jump(i1) """ expected = """ [i0] jump(1) """ self.optimize_loop(ops, expected) def test_virtual_constant_isnonnull(self): ops = """ [i0] p0 = new_with_vtable(descr=nodesize) setfield_gc(p0, ConstPtr(myptr), descr=nextdescr) p2 = getfield_gc_r(p0, descr=nextdescr) i1 = ptr_eq(p2, NULL) jump(i1) """ expected = """ [i0] jump(0) """ self.optimize_loop(ops, expected) def test_virtual_array_of_struct(self): ops = """ [f0, f1, f2, f3] p0 = new_array_clear(2, descr=complexarraydescr) setinteriorfield_gc(p0, 0, f1, descr=compleximagdescr) setinteriorfield_gc(p0, 0, f0, descr=complexrealdescr) setinteriorfield_gc(p0, 1, f3, descr=compleximagdescr) setinteriorfield_gc(p0, 1, f2, descr=complexrealdescr) f4 = getinteriorfield_gc_f(p0, 0, descr=complexrealdescr) f5 = getinteriorfield_gc_f(p0, 1, descr=complexrealdescr) f6 = float_mul(f4, f5) f7 = getinteriorfield_gc_f(p0, 0, descr=compleximagdescr) f8 = getinteriorfield_gc_f(p0, 1, descr=compleximagdescr) f9 = float_mul(f7, f8) f10 = float_add(f6, f9) finish(f10) """ expected = """ [f0, f1, f2, f3] f4 = float_mul(f0, f2) f5 = float_mul(f1, f3) f6 = float_add(f4, f5) finish(f6) """ self.optimize_loop(ops, expected) def test_virtual_array_of_struct_forced(self): ops = """ [f0, f1] p0 = new_array_clear(1, descr=complexarraydescr) setinteriorfield_gc(p0, 0, f0, descr=complexrealdescr) setinteriorfield_gc(p0, 0, f1, descr=compleximagdescr) f2 = getinteriorfield_gc_f(p0, 0, descr=complexrealdescr) f3 = getinteriorfield_gc_f(p0, 0, descr=compleximagdescr) f4 = float_mul(f2, f3) i0 = escape_i(f4, p0) finish(i0) """ expected = """ [f0, f1] f2 = float_mul(f0, f1) p0 = new_array_clear(1, descr=complexarraydescr) setinteriorfield_gc(p0, 0, f0, descr=complexrealdescr) setinteriorfield_gc(p0, 0, f1, descr=compleximagdescr) i0 = escape_i(f2, p0) finish(i0) """ self.optimize_loop(ops, expected) def test_virtual_array_of_struct_len(self): ops = """ [] p0 = new_array_clear(2, descr=complexarraydescr) i0 = arraylen_gc(p0) finish(i0) """ expected = """ [] finish(2) """ self.optimize_loop(ops, expected) def test_virtual_array_of_struct_arraycopy(self): ops = """ [f0, f1] p0 = new_array_clear(3, descr=complexarraydescr) setinteriorfield_gc(p0, 0, f1, descr=complexrealdescr) setinteriorfield_gc(p0, 0, f0, descr=compleximagdescr) call_n(0, p0, p0, 0, 2, 1, descr=complexarraycopydescr) f2 = getinteriorfield_gc_f(p0, 2, descr=complexrealdescr) f3 = getinteriorfield_gc_f(p0, 2, descr=compleximagdescr) escape_n(f2) escape_n(f3) finish(1) """ expected = """ [f0, f1] escape_n(f1) escape_n(f0) finish(1) """ self.optimize_loop(ops, ops) def test_nonvirtual_array_of_struct_arraycopy(self): ops = """ [p0] call_n(0, p0, p0, 0, 2, 1, descr=complexarraycopydescr) f2 = getinteriorfield_gc_f(p0, 2, descr=compleximagdescr) f3 = getinteriorfield_gc_f(p0, 2, descr=complexrealdescr) escape_n(f2) escape_n(f3) finish(1) """ self.optimize_loop(ops, ops) def test_nonvirtual_1(self): ops = """ [i] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i, descr=valuedescr) i0 = getfield_gc_i(p1, descr=valuedescr) i1 = int_add(i0, 1) escape_n(p1) escape_n(p1) jump(i1) """ expected = """ [i] i1 = int_add(i, 1) p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i, descr=valuedescr) escape_n(p1) escape_n(p1) jump(i1) """ self.optimize_loop(ops, expected) def test_nonvirtual_2(self): ops = """ [i, p0] i0 = getfield_gc_i(p0, descr=valuedescr) escape_n(p0) i1 = int_add(i0, i) p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i1, descr=valuedescr) jump(i, p1) """ expected = ops self.optimize_loop(ops, expected) def test_nonvirtual_later(self): ops = """ [i] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i, descr=valuedescr) i1 = getfield_gc_i(p1, descr=valuedescr) escape_n(p1) i2 = getfield_gc_i(p1, descr=valuedescr) i3 = int_add(i1, i2) jump(i3) """ expected = """ [i] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i, descr=valuedescr) escape_n(p1) i2 = getfield_gc_i(p1, descr=valuedescr) i3 = int_add(i, i2) jump(i3) """ self.optimize_loop(ops, expected) def test_nonvirtual_write_null_fields_on_force(self): ops = """ [i] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i, descr=valuedescr) i1 = getfield_gc_i(p1, descr=valuedescr) setfield_gc(p1, 0, descr=valuedescr) escape_n(p1) i2 = getfield_gc_i(p1, descr=valuedescr) jump(i2) """ expected = """ [i] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, 0, descr=valuedescr) escape_n(p1) i2 = getfield_gc_i(p1, descr=valuedescr) jump(i2) """ self.optimize_loop(ops, expected) def test_getfield_gc_1(self): ops = """ [i] p1 = new_with_vtable(descr=nodesize3) setfield_gc(p1, i, descr=valuedescr3) i1 = getfield_gc_i(p1, descr=valuedescr3) jump(i1) """ expected = """ [i] jump(i) """ self.optimize_loop(ops, expected) def test_getfield_gc_2(self): ops = """ [i] i1 = getfield_gc_i(ConstPtr(myptr3), descr=valuedescr3) jump(i1) """ expected = """ [i] jump(7) """ self.optimize_loop(ops, expected) def test_getfield_gc_nonpure_2(self): ops = """ [i] i1 = getfield_gc_i(ConstPtr(myptr), descr=valuedescr) jump(i1) """ expected = ops self.optimize_loop(ops, expected) def test_varray_1(self): ops = """ [i1] p1 = new_array(3, descr=arraydescr) i3 = arraylen_gc(p1, descr=arraydescr) guard_value(i3, 3) [] setarrayitem_gc(p1, 1, i1, descr=arraydescr) setarrayitem_gc(p1, 0, 25, descr=arraydescr) i2 = getarrayitem_gc_i(p1, 1, descr=arraydescr) jump(i2) """ expected = """ [i1] jump(i1) """ self.optimize_loop(ops, expected) def test_varray_alloc_and_set(self): ops = """ [i1] p1 = new_array(2, descr=arraydescr) setarrayitem_gc(p1, 0, 25, descr=arraydescr) i2 = getarrayitem_gc_i(p1, 0, descr=arraydescr) jump(i2) """ expected = """ [i1] jump(25) """ self.optimize_loop(ops, expected) def test_varray_float(self): ops = """ [f1] p1 = new_array(3, descr=floatarraydescr) i3 = arraylen_gc(p1, descr=floatarraydescr) guard_value(i3, 3) [] setarrayitem_gc(p1, 1, f1, descr=floatarraydescr) setarrayitem_gc(p1, 0, 3.5, descr=floatarraydescr) f2 = getarrayitem_gc_f(p1, 1, descr=floatarraydescr) jump(f2) """ expected = """ [f1] jump(f1) """ self.optimize_loop(ops, expected) def test_array_non_optimized(self): ops = """ [i1, p0] setarrayitem_gc(p0, 0, i1, descr=arraydescr) guard_nonnull(p0) [] p1 = new_array(i1, descr=arraydescr) jump(i1, p1) """ expected = """ [i1, p0] p1 = new_array(i1, descr=arraydescr) setarrayitem_gc(p0, 0, i1, descr=arraydescr) jump(i1, p1) """ self.optimize_loop(ops, expected) def test_array_non_optimized_length(self): ops = """ [i1] p1 = new_array(i1, descr=arraydescr) i2 = arraylen_gc(p1, descr=arraydescr) jump(i2) """ expected = """ [i1] p1 = new_array(i1, descr=arraydescr) jump(i1) """ self.optimize_loop(ops, expected) ops = """ [i1] p1 = new_array_clear(i1, descr=arraydescr) i2 = arraylen_gc(p1, descr=arraydescr) jump(i2) """ expected = """ [i1] p1 = new_array_clear(i1, descr=arraydescr) jump(i1) """ self.optimize_loop(ops, expected) def test_nonvirtual_array_write_null_fields_on_force(self): ops = """ [i1] p1 = new_array(5, descr=arraydescr) setarrayitem_gc(p1, 0, i1, descr=arraydescr) setarrayitem_gc(p1, 1, 0, descr=arraydescr) escape_n(p1) jump(i1) """ expected = """ [i1] p1 = new_array(5, descr=arraydescr) setarrayitem_gc(p1, 0, i1, descr=arraydescr) setarrayitem_gc(p1, 1, 0, descr=arraydescr) escape_n(p1) jump(i1) """ self.optimize_loop(ops, expected) def test_p123_array(self): ops = """ [i1, p2, p3] i3 = getarrayitem_gc_i(p3, 0, descr=arraydescr) escape_n(i3) p1 = new_array(1, descr=arraydescr) setarrayitem_gc(p1, 0, i1, descr=arraydescr) jump(i1, p1, p2) """ # We cannot track virtuals that survive for more than two iterations. self.optimize_loop(ops, ops) def test_varray_forced_1(self): ops = """ [] p2 = new_with_vtable(descr=nodesize) setfield_gc(p2, 3, descr=valuedescr) i1 = getfield_gc_i(p2, descr=valuedescr) # i1 = const 3 p1 = new_array(i1, descr=arraydescr) escape_n(p1) i2 = arraylen_gc(p1) escape_n(i2) jump() """ # also check that the length of the forced array is known expected = """ [] p1 = new_array(3, descr=arraydescr) escape_n(p1) escape_n(3) jump() """ self.optimize_loop(ops, expected) def test_varray_huge_size(self): ops = """ [] p1 = new_array(150100, descr=arraydescr) jump() """ self.optimize_loop(ops, ops) def test_varray_negative_items_from_invalid_loop(self): ops = """ [p1, p2] i2 = getarrayitem_gc_i(p1, -1, descr=arraydescr) setarrayitem_gc(p2, -1, i2, descr=arraydescr) jump(p1, p2) """ self.optimize_loop(ops, ops) def test_varray_too_large_items(self): ops = """ [p1, p2] i2 = getarrayitem_gc_i(p1, 150100, descr=arraydescr) i3 = getarrayitem_gc_i(p1, 150100, descr=arraydescr) # not cached setarrayitem_gc(p2, 150100, i2, descr=arraydescr) i4 = getarrayitem_gc_i(p2, 150100, descr=arraydescr) # cached, heap.py jump(p1, p2, i3, i4) """ expected = """ [p1, p2] i2 = getarrayitem_gc_i(p1, 150100, descr=arraydescr) i3 = getarrayitem_gc_i(p1, 150100, descr=arraydescr) # not cached setarrayitem_gc(p2, 150100, i2, descr=arraydescr) jump(p1, p2, i3, i2) """ self.optimize_loop(ops, expected) def test_varray_negative_items_from_invalid_loop_v(self): ops = """ [] p1 = new_array(10, descr=arraydescr) i2 = getarrayitem_gc_i(p1, -1, descr=arraydescr) jump(i2) """ py.test.raises(InvalidLoop, self.optimize_loop, ops, ops) # ops = """ [i2] p1 = new_array(10, descr=arraydescr) setarrayitem_gc(p1, -1, i2, descr=arraydescr) jump() """ expected = """ [i2] jump() """ # the setarrayitem_gc is completely dropped because of invalid index. # we could also raise InvalidLoop, but both choices seem OK self.optimize_loop(ops, expected) def test_varray_too_large_items_from_invalid_loop_v(self): ops = """ [] p1 = new_array(10, descr=arraydescr) i2 = getarrayitem_gc_i(p1, 10, descr=arraydescr) jump(i2) """ py.test.raises(InvalidLoop, self.optimize_loop, ops, ops) # ops = """ [i2] p1 = new_array(10, descr=arraydescr) setarrayitem_gc(p1, 10, i2, descr=arraydescr) jump() """ expected = """ [i2] jump() """ # the setarrayitem_gc is completely dropped because of invalid index. # we could also raise InvalidLoop, but both choices seem OK self.optimize_loop(ops, expected) def test_varray_huge_size_struct(self): ops = """ [] p1 = new_array(150100, descr=complexarraydescr) jump() """ self.optimize_loop(ops, ops) def test_varray_struct_negative_items_from_invalid_loop(self): ops = """ [p1, p2] f0 = getinteriorfield_gc_f(p1, -1, descr=complexrealdescr) setinteriorfield_gc(p2, -1, f0, descr=compleximagdescr) jump(p1, p2) """ self.optimize_loop(ops, ops) def test_varray_struct_too_large_items(self): ops = """ [p1, p2] f2 = getinteriorfield_gc_f(p1, 150100, descr=compleximagdescr) # not cached: f3 = getinteriorfield_gc_f(p1, 150100, descr=compleximagdescr) setinteriorfield_gc(p2, 150100, f2, descr=complexrealdescr) # this is not cached so far (it could be cached by heap.py) f4 = getinteriorfield_gc_f(p2, 150100, descr=complexrealdescr) jump(p1, p2, f3, f4) """ self.optimize_loop(ops, ops) def test_varray_struct_negative_items_from_invalid_loop_v(self): ops = """ [] p1 = new_array_clear(10, descr=complexarraydescr) f0 = getinteriorfield_gc_f(p1, -1, descr=complexrealdescr) jump(f0) """ py.test.raises(InvalidLoop, self.optimize_loop, ops, ops) # ops = """ [f0] p1 = new_array_clear(10, descr=complexarraydescr) setinteriorfield_gc(p1, -1, f0, descr=complexrealdescr) jump() """ expected = """ [f0] jump() """ # the setinteriorfield_gc is completely dropped because of invalid # index. we could also raise InvalidLoop, but both choices seem OK self.optimize_loop(ops, expected) def test_varray_struct_too_large_items_from_invalid_loop_v(self): ops = """ [] p1 = new_array_clear(10, descr=complexarraydescr) f0 = getinteriorfield_gc_f(p1, 10, descr=complexrealdescr) jump(f0) """ py.test.raises(InvalidLoop, self.optimize_loop, ops, ops) # ops = """ [f0] p1 = new_array_clear(10, descr=complexarraydescr) setinteriorfield_gc(p1, 10, f0, descr=complexrealdescr) jump() """ expected = """ [f0] jump() """ # the setinteriorfield_gc is completely dropped because of invalid # index. we could also raise InvalidLoop, but both choices seem OK self.optimize_loop(ops, expected) def test_p123_vstruct(self): ops = """ [i1, p2, p3] i3 = getfield_gc_i(p3, descr=adescr) escape_n(i3) p1 = new(descr=ssize) setfield_gc(p1, i1, descr=adescr) jump(i1, p1, p2) """ # We cannot track virtuals that survive for more than two iterations. self.optimize_loop(ops, ops) def test_duplicate_getfield_1(self): ops = """ [p1, p2] i1 = getfield_gc_i(p1, descr=valuedescr) i2 = getfield_gc_i(p2, descr=valuedescr) i3 = getfield_gc_i(p1, descr=valuedescr) i4 = getfield_gc_i(p2, descr=valuedescr) escape_n(i1) escape_n(i2) escape_n(i3) escape_n(i4) jump(p1, p2) """ expected = """ [p1, p2] i1 = getfield_gc_i(p1, descr=valuedescr) i2 = getfield_gc_i(p2, descr=valuedescr) escape_n(i1) escape_n(i2) escape_n(i1) escape_n(i2) jump(p1, p2) """ self.optimize_loop(ops, expected) def test_getfield_after_setfield(self): ops = """ [p1, i1] setfield_gc(p1, i1, descr=valuedescr) i2 = getfield_gc_i(p1, descr=valuedescr) escape_n(i2) jump(p1, i1) """ expected = """ [p1, i1] setfield_gc(p1, i1, descr=valuedescr) escape_n(i1) jump(p1, i1) """ self.optimize_loop(ops, expected) def test_setfield_of_different_type_does_not_clear(self): ops = """ [p1, p2, i1] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, p1, descr=nextdescr) i2 = getfield_gc_i(p1, descr=valuedescr) escape_n(i2) jump(p1, p2, i1) """ expected = """ [p1, p2, i1] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, p1, descr=nextdescr) escape_n(i1) jump(p1, p2, i1) """ self.optimize_loop(ops, expected) def test_setfield_of_same_type_clears(self): ops = """ [p1, p2, i1, i2] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, i2, descr=valuedescr) i3 = getfield_gc_i(p1, descr=valuedescr) escape_n(i3) jump(p1, p2, i1, i3) """ self.optimize_loop(ops, ops) def test_duplicate_getfield_mergepoint_has_no_side_effects(self): ops = """ [p1] i1 = getfield_gc_i(p1, descr=valuedescr) debug_merge_point(15, 0, 1) i2 = getfield_gc_i(p1, descr=valuedescr) escape_n(i1) escape_n(i2) jump(p1) """ expected = """ [p1] i1 = getfield_gc_i(p1, descr=valuedescr) debug_merge_point(15, 0, 1) escape_n(i1) escape_n(i1) jump(p1) """ self.optimize_loop(ops, expected) def test_duplicate_getfield_ovf_op_does_not_clear(self): ops = """ [p1] i1 = getfield_gc_i(p1, descr=valuedescr) i2 = int_add_ovf(i1, 14) guard_no_overflow() [] i3 = getfield_gc_i(p1, descr=valuedescr) escape_n(i2) escape_n(i3) jump(p1) """ expected = """ [p1] i1 = getfield_gc_i(p1, descr=valuedescr) i2 = int_add_ovf(i1, 14) guard_no_overflow() [] escape_n(i2) escape_n(i1) jump(p1) """ self.optimize_loop(ops, expected) def test_duplicate_getfield_setarrayitem_does_not_clear(self): ops = """ [p1, p2] i1 = getfield_gc_i(p1, descr=valuedescr) setarrayitem_gc(p2, 0, p1, descr=arraydescr2) i3 = getfield_gc_i(p1, descr=valuedescr) escape_n(i1) escape_n(i3) jump(p1, p2) """ expected = """ [p1, p2] i1 = getfield_gc_i(p1, descr=valuedescr) setarrayitem_gc(p2, 0, p1, descr=arraydescr2) escape_n(i1) escape_n(i1) jump(p1, p2) """ self.optimize_loop(ops, expected) def test_duplicate_getfield_constant(self): ops = """ [] i1 = getfield_gc_i(ConstPtr(myptr), descr=valuedescr) i2 = getfield_gc_i(ConstPtr(myptr), descr=valuedescr) escape_n(i1) escape_n(i2) jump() """ expected = """ [] i1 = getfield_gc_i(ConstPtr(myptr), descr=valuedescr) escape_n(i1) escape_n(i1) jump() """ self.optimize_loop(ops, expected) def test_duplicate_getfield_sideeffects_1(self): ops = """ [p1] i1 = getfield_gc_i(p1, descr=valuedescr) escape_n() i2 = getfield_gc_i(p1, descr=valuedescr) escape_n(i1) escape_n(i2) jump(p1) """ self.optimize_loop(ops, ops) def test_duplicate_getfield_sideeffects_2(self): ops = """ [p1, i1] setfield_gc(p1, i1, descr=valuedescr) escape_n() i2 = getfield_gc_i(p1, descr=valuedescr) escape_n(i2) jump(p1, i1) """ self.optimize_loop(ops, ops) def test_duplicate_setfield_1(self): ops = """ [p1, i1, i2] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p1, i2, descr=valuedescr) jump(p1, i1, i2) """ expected = """ [p1, i1, i2] setfield_gc(p1, i2, descr=valuedescr) jump(p1, i1, i2) """ self.optimize_loop(ops, expected) def test_duplicate_setfield_2(self): ops = """ [p1, i1, i3] setfield_gc(p1, i1, descr=valuedescr) i2 = getfield_gc_i(p1, descr=valuedescr) setfield_gc(p1, i3, descr=valuedescr) escape_n(i2) jump(p1, i1, i3) """ expected = """ [p1, i1, i3] setfield_gc(p1, i3, descr=valuedescr) escape_n(i1) jump(p1, i1, i3) """ self.optimize_loop(ops, expected) def test_duplicate_setfield_3(self): ops = """ [p1, p2, i1, i3] setfield_gc(p1, i1, descr=valuedescr) i2 = getfield_gc_i(p2, descr=valuedescr) setfield_gc(p1, i3, descr=valuedescr) escape_n(i2) jump(p1, p2, i1, i3) """ # potential aliasing of p1 and p2 means that we cannot kill the # the setfield_gc self.optimize_loop(ops, ops) def test_duplicate_setfield_4(self): ops = """ [p1, i1, i2, p3] setfield_gc(p1, i1, descr=valuedescr) # # some operations on which the above setfield_gc cannot have effect i3 = getarrayitem_gc_i(p3, 1, descr=arraydescr) i4 = getarrayitem_gc_i(p3, i3, descr=arraydescr) i5 = int_add(i3, i4) setarrayitem_gc(p3, 0, i5, descr=arraydescr) setfield_gc(p1, i4, descr=nextdescr) # setfield_gc(p1, i2, descr=valuedescr) jump(p1, i1, i2, p3) """ expected = """ [p1, i1, i2, p3] # i3 = getarrayitem_gc_i(p3, 1, descr=arraydescr) i4 = getarrayitem_gc_i(p3, i3, descr=arraydescr) i5 = int_add(i3, i4) # setfield_gc(p1, i2, descr=valuedescr) setfield_gc(p1, i4, descr=nextdescr) setarrayitem_gc(p3, 0, i5, descr=arraydescr) jump(p1, i1, i2, p3) """ self.optimize_loop(ops, expected) def test_duplicate_setfield_5(self): ops = """ [p0, i1] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p0, p1, descr=nextdescr) setfield_raw(i1, i1, descr=valuedescr) # random op with side-effects p2 = getfield_gc_r(p0, descr=nextdescr) i2 = getfield_gc_i(p2, descr=valuedescr) setfield_gc(p0, NULL, descr=nextdescr) escape_n(i2) jump(p0, i1) """ expected = """ [p0, i1] setfield_raw(i1, i1, descr=valuedescr) setfield_gc(p0, NULL, descr=nextdescr) escape_n(i1) jump(p0, i1) """ self.optimize_loop(ops, expected) def test_duplicate_setfield_sideeffects_1(self): ops = """ [p1, i1, i2] setfield_gc(p1, i1, descr=valuedescr) escape_n() setfield_gc(p1, i2, descr=valuedescr) jump(p1, i1, i2) """ self.optimize_loop(ops, ops) def test_duplicate_setfield_residual_guard_1(self): ops = """ [p1, i1, i2, i3] setfield_gc(p1, i1, descr=valuedescr) guard_true(i3) [] i4 = int_neg(i2) setfield_gc(p1, i2, descr=valuedescr) jump(p1, i1, i2, i4) """ self.optimize_loop(ops, ops) def test_duplicate_setfield_residual_guard_2(self): # the difference with the previous test is that the field value is # a virtual, which we try hard to keep virtual ops = """ [p1, i2, i3] p2 = new_with_vtable(descr=nodesize) setfield_gc(p1, p2, descr=nextdescr) guard_true(i3) [] i4 = int_neg(i2) setfield_gc(p1, NULL, descr=nextdescr) jump(p1, i2, i4) """ expected = """ [p1, i2, i3] guard_true(i3) [p1] i4 = int_neg(i2) setfield_gc(p1, NULL, descr=nextdescr) jump(p1, i2, i4) """ self.optimize_loop(ops, expected) def test_duplicate_setfield_residual_guard_3(self): ops = """ [p1, i2, i3] p2 = new_with_vtable(descr=nodesize) setfield_gc(p2, i2, descr=valuedescr) setfield_gc(p1, p2, descr=nextdescr) guard_true(i3) [] i4 = int_neg(i2) setfield_gc(p1, NULL, descr=nextdescr) jump(p1, i2, i4) """ expected = """ [p1, i2, i3] guard_true(i3) [i2, p1] i4 = int_neg(i2) setfield_gc(p1, NULL, descr=nextdescr) jump(p1, i2, i4) """ self.optimize_loop(ops, expected) def test_duplicate_setfield_residual_guard_4(self): # test that the setfield_gc does not end up between int_eq and # the following guard_true ops = """ [p1, i1, i2, i3] setfield_gc(p1, i1, descr=valuedescr) i5 = int_eq(i3, 5) guard_true(i5) [] i4 = int_neg(i2) setfield_gc(p1, i2, descr=valuedescr) jump(p1, i1, i2, i4) """ self.optimize_loop(ops, ops) def test_setfield_int_eq_result(self): # test that the setfield_gc does not end up before int_eq ops = """ [p1, i1, i2] i3 = int_eq(i1, i2) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i1, i2) """ self.optimize_loop(ops, ops) def test_duplicate_setfield_aliasing(self): # a case where aliasing issues (and not enough cleverness) mean # that we fail to remove any setfield_gc ops = """ [p1, p2, i1, i2, i3] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, i2, descr=valuedescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, p2, i1, i2, i3) """ self.optimize_loop(ops, ops) def test_duplicate_setfield_guard_value_const(self): ops = """ [p1, i1, i2] guard_value(p1, ConstPtr(myptr)) [] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(ConstPtr(myptr), i2, descr=valuedescr) jump(p1, i1, i2) """ expected = """ [p1, i1, i2] guard_value(p1, ConstPtr(myptr)) [] setfield_gc(ConstPtr(myptr), i2, descr=valuedescr) jump(ConstPtr(myptr), i1, i2) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_1(self): ops = """ [p1] p2 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p3 = getarrayitem_gc_r(p1, 1, descr=arraydescr2) p4 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p5 = getarrayitem_gc_r(p1, 1, descr=arraydescr2) escape_n(p2) escape_n(p3) escape_n(p4) escape_n(p5) jump(p1) """ expected = """ [p1] p2 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p3 = getarrayitem_gc_r(p1, 1, descr=arraydescr2) escape_n(p2) escape_n(p3) escape_n(p2) escape_n(p3) jump(p1) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_after_setarrayitem_1(self): ops = """ [p1, p2] setarrayitem_gc(p1, 0, p2, descr=arraydescr2) p3 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) escape_n(p3) jump(p1, p3) """ expected = """ [p1, p2] setarrayitem_gc(p1, 0, p2, descr=arraydescr2) escape_n(p2) jump(p1, p2) """ self.optimize_loop(ops, expected) @pytest.mark.xfail def test_duplicate_getarrayitem_after_setarrayitem_2(self): ops = """ [p1, p2, p3, i1] setarrayitem_gc(p1, 0, p2, descr=arraydescr2) setarrayitem_gc(p1, i1, p3, descr=arraydescr2) p4 = getarrayitem_gc(p1, 0, descr=arraydescr2) p5 = getarrayitem_gc(p1, i1, descr=arraydescr2) escape_n(p4) escape_n(p5) jump(p1, p2, p3, i1) """ expected = """ [p1, p2, p3, i1] setarrayitem_gc(p1, 0, p2, descr=arraydescr2) setarrayitem_gc(p1, i1, p3, descr=arraydescr2) p4 = getarrayitem_gc(p1, 0, descr=arraydescr2) escape_n(p4) escape_n(p3) jump(p1, p2, p3, i1) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_after_setarrayitem_3(self): ops = """ [p1, p2, p3, p4, i1] setarrayitem_gc(p1, i1, p2, descr=arraydescr2) setarrayitem_gc(p1, 0, p3, descr=arraydescr2) setarrayitem_gc(p1, 1, p4, descr=arraydescr2) p5 = getarrayitem_gc_r(p1, i1, descr=arraydescr2) p6 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p7 = getarrayitem_gc_r(p1, 1, descr=arraydescr2) escape_n(p5) escape_n(p6) escape_n(p7) jump(p1, p2, p3, p4, i1) """ expected = """ [p1, p2, p3, p4, i1] setarrayitem_gc(p1, i1, p2, descr=arraydescr2) setarrayitem_gc(p1, 0, p3, descr=arraydescr2) setarrayitem_gc(p1, 1, p4, descr=arraydescr2) p5 = getarrayitem_gc_r(p1, i1, descr=arraydescr2) escape_n(p5) escape_n(p3) escape_n(p4) jump(p1, p2, p3, p4, i1) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_after_setarrayitem_and_guard(self): ops = """ [p0, p1, p2, p3, i1] p4 = getarrayitem_gc_r(p0, 0, descr=arraydescr2) p5 = getarrayitem_gc_r(p0, 1, descr=arraydescr2) p6 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) setarrayitem_gc(p1, 1, p3, descr=arraydescr2) guard_true(i1) [i1] p7 = getarrayitem_gc_r(p0, 0, descr=arraydescr2) p8 = getarrayitem_gc_r(p0, 1, descr=arraydescr2) p9 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p10 = getarrayitem_gc_r(p1, 1, descr=arraydescr2) escape_n(p4) escape_n(p5) escape_n(p6) escape_n(p7) escape_n(p8) escape_n(p9) escape_n(p10) jump(p0, p1, p2, p3, i1) """ expected = """ [p0, p1, p2, p3, i1] p4 = getarrayitem_gc_r(p0, 0, descr=arraydescr2) p5 = getarrayitem_gc_r(p0, 1, descr=arraydescr2) p6 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) setarrayitem_gc(p1, 1, p3, descr=arraydescr2) guard_true(i1) [i1] p8 = getarrayitem_gc_r(p0, 1, descr=arraydescr2) escape_n(p4) escape_n(p5) escape_n(p6) escape_n(p4) escape_n(p8) escape_n(p6) escape_n(p3) jump(p0, p1, p2, p3, 1) """ self.optimize_loop(ops, expected) def test_getarrayitem_pure_does_not_invalidate(self): ops = """ [p1, p2] p3 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) i4 = getfield_gc_i(ConstPtr(myptr3), descr=valuedescr3) p5 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) escape_n(p3) escape_n(i4) escape_n(p5) jump(p1, p2) """ expected = """ [p1, p2] p3 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) escape_n(p3) escape_n(7) escape_n(p3) jump(p1, p2) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_after_setarrayitem_two_arrays(self): ops = """ [p1, p2, p3, p4, i1] setarrayitem_gc(p1, 0, p3, descr=arraydescr2) setarrayitem_gc(p2, 1, p4, descr=arraydescr2) p5 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p6 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) escape_n(p5) escape_n(p6) jump(p1, p2, p3, p4, i1) """ expected = """ [p1, p2, p3, p4, i1] setarrayitem_gc(p1, 0, p3, descr=arraydescr2) setarrayitem_gc(p2, 1, p4, descr=arraydescr2) escape_n(p3) escape_n(p4) jump(p1, p2, p3, p4, i1) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_after_setarrayitem_bug(self): ops = """ [p0, i0, i1] setarrayitem_gc(p0, 0, i0, descr=arraydescr) i6 = int_add(i0, 1) setarrayitem_gc(p0, i1, i6, descr=arraydescr) i10 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i11 = int_add(i10, i0) jump(p0, i11, i1) """ expected = """ [p0, i0, i1] i6 = int_add(i0, 1) setarrayitem_gc(p0, 0, i0, descr=arraydescr) setarrayitem_gc(p0, i1, i6, descr=arraydescr) i10 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i11 = int_add(i10, i0) jump(p0, i11, i1) """ self.optimize_loop(ops, expected) def test_duplicate_getarrayitem_after_setarrayitem_bug2(self): ops = """ [p0, i0, i1] i2 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i6 = int_add(i0, 1) setarrayitem_gc(p0, i1, i6, descr=arraydescr) i10 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i11 = int_add(i10, i2) jump(p0, i11, i1) """ expected = """ [p0, i0, i1] i2 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i6 = int_add(i0, 1) setarrayitem_gc(p0, i1, i6, descr=arraydescr) i10 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i11 = int_add(i10, i2) jump(p0, i11, i1) """ self.optimize_loop(ops, expected) def test_merge_guard_class_guard_value(self): ops = """ [p1, i0, i1, i2, p2] guard_class(p1, ConstClass(node_vtable)) [i0] i3 = int_add(i1, i2) guard_value(p1, ConstPtr(myptr)) [i1] jump(p2, i0, i1, i3, p2) """ expected = """ [p1, i0, i1, i2, p2] guard_value(p1, ConstPtr(myptr)) [i0] i3 = int_add(i1, i2) jump(p2, i0, i1, i3, p2) """ self.optimize_loop(ops, expected) def test_merge_guard_nonnull_guard_class(self): ops = """ [p1, i0, i1, i2, p2] guard_nonnull(p1) [i0] i3 = int_add(i1, i2) guard_class(p1, ConstClass(node_vtable)) [i1] jump(p2, i0, i1, i3, p2) """ expected = """ [p1, i0, i1, i2, p2] guard_nonnull_class(p1, ConstClass(node_vtable)) [i0] i3 = int_add(i1, i2) jump(p2, i0, i1, i3, p2) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr("i0", rop.GUARD_NONNULL_CLASS) def test_merge_guard_nonnull_guard_value(self): ops = """ [p1, i0, i1, i2, p2] guard_nonnull(p1) [i0] i3 = int_add(i1, i2) guard_value(p1, ConstPtr(myptr)) [i1] jump(p2, i0, i1, i3, p2) """ expected = """ [p1, i0, i1, i2, p2] guard_value(p1, ConstPtr(myptr)) [i0] i3 = int_add(i1, i2) jump(p2, i0, i1, i3, p2) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr("i0", rop.GUARD_VALUE) def test_merge_guard_nonnull_guard_class_guard_value(self): ops = """ [p1, i0, i1, i2, p2] guard_nonnull(p1) [i0] i3 = int_add(i1, i2) guard_class(p1, ConstClass(node_vtable)) [i2] i4 = int_sub(i3, 1) guard_value(p1, ConstPtr(myptr)) [i1] jump(p2, i0, i1, i4, p2) """ expected = """ [p1, i0, i1, i2, p2] guard_value(p1, ConstPtr(myptr)) [i0] i3 = int_add(i1, i2) i4 = int_sub(i3, 1) jump(p2, i0, i1, i4, p2) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr("i0", rop.GUARD_VALUE) def test_guard_class_oois(self): ops = """ [p1] guard_class(p1, ConstClass(node_vtable2)) [] i = instance_ptr_ne(ConstPtr(myptr), p1) guard_true(i) [] jump(p1) """ expected = """ [p1] guard_class(p1, ConstClass(node_vtable2)) [] jump(p1) """ self.optimize_loop(ops, expected) def test_oois_of_itself(self): ops = """ [p0] p1 = getfield_gc_r(p0, descr=nextdescr) p2 = getfield_gc_r(p0, descr=nextdescr) i1 = ptr_eq(p1, p2) guard_true(i1) [] i2 = ptr_ne(p1, p2) guard_false(i2) [] jump(p0) """ expected = """ [p0] p1 = getfield_gc_r(p0, descr=nextdescr) jump(p0) """ self.optimize_loop(ops, expected) def test_remove_duplicate_pure_op(self): ops = """ [p1, p2] i1 = ptr_eq(p1, p2) i2 = ptr_eq(p1, p2) i3 = int_add(i1, 1) i3b = int_is_true(i3) guard_true(i3b) [] i4 = int_add(i2, 1) i4b = int_is_true(i4) guard_true(i4b) [] escape_n(i3) escape_n(i4) guard_true(i1) [] guard_true(i2) [] jump(p1, p2) """ expected = """ [p1, p2] i1 = ptr_eq(p1, p2) i3 = int_add(i1, 1) escape_n(i3) escape_n(i3) guard_true(i1) [] jump(p1, p2) """ self.optimize_loop(ops, expected) def test_remove_duplicate_pure_op_with_descr(self): ops = """ [p1] i0 = arraylen_gc(p1, descr=arraydescr) i1 = int_gt(i0, 0) guard_true(i1) [] i2 = arraylen_gc(p1, descr=arraydescr) i3 = int_gt(i0, 0) guard_true(i3) [] jump(p1) """ expected = """ [p1] i0 = arraylen_gc(p1, descr=arraydescr) i1 = int_gt(i0, 0) guard_true(i1) [] jump(p1) """ self.optimize_loop(ops, expected) def test_fold_constant_partial_ops_float(self): ops = """ [f0] f1 = float_mul(f0, 1.0) f2 = escape_f(f1) jump(f2) """ expected = """ [f0] f2 = escape_f(f0) jump(f2) """ self.optimize_loop(ops, expected) ops = """ [f0] f1 = float_mul(1.0, f0) f2 = escape_f(f1) jump(f2) """ expected = """ [f0] f2 = escape_f(f0) jump(f2) """ self.optimize_loop(ops, expected) ops = """ [f0] f1 = float_mul(f0, -1.0) f2 = escape_f(f1) jump(f2) """ expected = """ [f0] f1 = float_neg(f0) f2 = escape_f(f1) jump(f2) """ self.optimize_loop(ops, expected) ops = """ [f0] f1 = float_mul(-1.0, f0) f2 = escape_f(f1) jump(f2) """ expected = """ [f0] f1 = float_neg(f0) f2 = escape_f(f1) jump(f2) """ self.optimize_loop(ops, expected) def test_fold_repeated_float_neg(self): ops = """ [f0] f1 = float_neg(f0) f2 = float_neg(f1) f3 = float_neg(f2) f4 = float_neg(f3) escape_n(f4) jump(f4) """ expected = """ [f0] # The backend removes this dead op. f1 = float_neg(f0) escape_n(f0) jump(f0) """ self.optimize_loop(ops, expected) def test_float_division_by_multiplication(self): ops = """ [f0] f1 = float_truediv(f0, 2.0) f2 = float_truediv(f1, 3.0) f3 = float_truediv(f2, -0.25) f4 = float_truediv(f3, 0.0) f5 = escape_f(f4) jump(f5) """ expected = """ [f0] f1 = float_mul(f0, 0.5) f2 = float_truediv(f1, 3.0) f3 = float_mul(f2, -4.0) f4 = float_truediv(f3, 0.0) f5 = escape_f(f4) jump(f5) """ self.optimize_loop(ops, expected) # ---------- def get_class_of_box(self, box): base = box.getref_base() return lltype.cast_opaque_ptr(rclass.OBJECTPTR, base).typeptr def _verify_fail_args(self, boxes, oparse, text): r = re.compile(r"\bwhere\s+(\w+)\s+is a\s+(\w+)") parts = list(r.finditer(text)) ends = [match.start() for match in parts] + [len(text)] # virtuals = {} for match, end in zip(parts, ends[1:]): pvar = match.group(1) fieldstext = text[match.end():end] if match.group(2) == 'varray': arrayname, fieldstext = fieldstext.split(':', 1) tag = ('varray', self.namespace[arrayname.strip()]) elif match.group(2) == 'vstruct': if ',' in fieldstext: structname, fieldstext = fieldstext.split(',', 1) else: structname, fieldstext = fieldstext, '' tag = ('vstruct', self.namespace[structname.strip()]) else: tag = ('virtual', self.namespace[match.group(2)]) virtuals[pvar] = (tag, None, fieldstext) # r2 = re.compile(r"([\w\d()]+)[.](\w+)\s*=\s*([\w\d()]+)") pendingfields = [] for match in r2.finditer(text): pvar = match.group(1) pfieldname = match.group(2) pfieldvar = match.group(3) pendingfields.append((pvar, pfieldname, pfieldvar)) # def _variables_equal(box, varname, strict): if varname not in virtuals: if strict: assert box.same_box(oparse.getvar(varname)) else: tag, resolved, fieldstext = virtuals[varname] if tag[0] == 'virtual': assert self.get_class_of_box(box) == tag[1] elif tag[0] == 'varray': pass # xxx check arraydescr elif tag[0] == 'vstruct': pass # xxx check typedescr else: assert 0 if resolved is not None: assert resolved.getvalue() == box.getvalue() else: virtuals[varname] = tag, box, fieldstext # basetext = text.splitlines()[0] varnames = [s.strip() for s in basetext.split(',')] if varnames == ['']: varnames = [] assert len(boxes) == len(varnames) for box, varname in zip(boxes, varnames): _variables_equal(box, varname, strict=False) for pvar, pfieldname, pfieldvar in pendingfields: box = oparse.getvar(pvar) fielddescr = self.namespace[pfieldname.strip()] opnum = OpHelpers.getfield_for_descr(fielddescr) fieldval = executor.execute(self.cpu, None, opnum, fielddescr, box) _variables_equal(executor.wrap_constant(fieldval), pfieldvar, strict=True) # for match in parts: pvar = match.group(1) tag, resolved, fieldstext = virtuals[pvar] assert resolved is not None index = 0 for fieldtext in fieldstext.split(','): fieldtext = fieldtext.strip() if not fieldtext: continue if tag[0] in ('virtual', 'vstruct'): fieldname, fieldvalue = fieldtext.split('=') fielddescr = self.namespace[fieldname.strip()] opnum = OpHelpers.getfield_for_descr(fielddescr) fieldval = executor.execute(self.cpu, None, opnum, fielddescr, resolved) elif tag[0] == 'varray': fieldvalue = fieldtext #opnum = OpHelpers.getarrayitem_for_descr(fielddescr) fieldval = executor.execute(self.cpu, None, rop.GETARRAYITEM_GC_I, tag[1], resolved, ConstInt(index)) else: assert 0 _variables_equal(executor.wrap_constant(fieldval), fieldvalue.strip(), strict=False) index += 1 def check_expanded_fail_descr(self, expectedtext, guard_opnum, values=None): guard_op, = [op for op in self.loop.operations if op.is_guard()] fail_args = guard_op.getfailargs() if values is not None: fail_args = values fdescr = guard_op.getdescr() reader = ResumeDataFakeReader(fdescr, fail_args, MyMetaInterp(self.cpu)) boxes = reader.consume_boxes() self._verify_fail_args(boxes, self.oparse, expectedtext) def test_expand_fail_1(self): ops = """ [i1, i3] # first rename i3 into i4 p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i3, descr=valuedescr) i4 = getfield_gc_i(p1, descr=valuedescr) # i2 = int_add(10, 5) guard_true(i1) [i2, i4] jump(i1, i4) """ expected = """ [i1, i3] guard_true(i1) [i3] jump(1, i3) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr('15, i3', rop.GUARD_TRUE) def test_expand_fail_2(self): ops = """ [i1, i2] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i2, descr=valuedescr) setfield_gc(p1, p1, descr=nextdescr) guard_true(i1) [p1] jump(i1, i2) """ expected = """ [i1, i2] guard_true(i1) [i2] jump(1, i2) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr('''ptr where ptr is a node_vtable, valuedescr=i2 ''', rop.GUARD_TRUE) def test_expand_fail_3(self): ops = """ [i1, i2, i3, p3] p1 = new_with_vtable(descr=nodesize) p2 = new_with_vtable(descr=nodesize) setfield_gc(p1, 1, descr=valuedescr) setfield_gc(p1, p2, descr=nextdescr) setfield_gc(p2, i2, descr=valuedescr) setfield_gc(p2, p3, descr=nextdescr) guard_true(i1) [i3, p1] jump(i2, i1, i3, p3) """ expected = """ [i1, i2, i3, p3] guard_true(i1) [i3, i2, p3] jump(i2, 1, i3, p3) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr('''i3, p1 where p1 is a node_vtable, valuedescr=1, nextdescr=p2 where p2 is a node_vtable, valuedescr=i2, nextdescr=p3 ''', rop.GUARD_TRUE) def test_expand_fail_4(self): for arg in ['p1', 'i2,p1', 'p1,p2', 'p2,p1', 'i2,p1,p2', 'i2,p2,p1']: ops = """ [i1, i2, i3] p1 = new_with_vtable(descr=nodesize) setfield_gc(p1, i3, descr=valuedescr) i4 = getfield_gc_i(p1, descr=valuedescr) # copy of i3 p2 = new_with_vtable(descr=nodesize) setfield_gc(p1, i2, descr=valuedescr) setfield_gc(p1, p2, descr=nextdescr) setfield_gc(p2, i2, descr=valuedescr) guard_true(i1) [i4, i3, %s] jump(i1, i2, i3) """ expected = """ [i1, i2, i3] guard_true(i1) [i3, i2] jump(1, i2, i3) """ self.optimize_loop(ops % arg, expected) self.check_expanded_fail_descr('''i3, i3, %s where p1 is a node_vtable, valuedescr=i2, nextdescr=p2 where p2 is a node_vtable, valuedescr=i2''' % arg, rop.GUARD_TRUE) def test_expand_fail_5(self): ops = """ [i1, i2, i3, i4] p1 = new_with_vtable(descr=nodesize) p2 = new_with_vtable(descr=nodesize) setfield_gc(p1, i4, descr=valuedescr) setfield_gc(p1, p2, descr=nextdescr) setfield_gc(p2, i2, descr=valuedescr) setfield_gc(p2, p1, descr=nextdescr) # a cycle guard_true(i1) [i3, i4, p1, p2] jump(i2, i1, i3, i4) """ expected = """ [i1, i2, i3, i4] guard_true(i1) [i3, i4, i2] jump(i2, 1, i3, i4) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr('''i3, i4, p1, p2 where p1 is a node_vtable, valuedescr=i4, nextdescr=p2 where p2 is a node_vtable, valuedescr=i2, nextdescr=p1 ''', rop.GUARD_TRUE) def test_expand_fail_varray(self): ops = """ [i1] p1 = new_array(3, descr=arraydescr) setarrayitem_gc(p1, 1, i1, descr=arraydescr) setarrayitem_gc(p1, 0, 25, descr=arraydescr) guard_true(i1) [p1] i2 = getarrayitem_gc_i(p1, 1, descr=arraydescr) jump(i2) """ expected = """ [i1] guard_true(i1) [i1] jump(1) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr('''p1 where p1 is a varray arraydescr: 25, i1 ''', rop.GUARD_TRUE) def test_expand_fail_vstruct(self): ops = """ [i1, p1] p2 = new(descr=ssize) setfield_gc(p2, i1, descr=adescr) setfield_gc(p2, p1, descr=bdescr) guard_true(i1) [p2] i3 = getfield_gc_i(p2, descr=adescr) p3 = getfield_gc_r(p2, descr=bdescr) jump(i3, p3) """ expected = """ [i1, p1] guard_true(i1) [i1, p1] jump(1, p1) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr('''p2 where p2 is a vstruct ssize, adescr=i1, bdescr=p1 ''', rop.GUARD_TRUE) def test_expand_fail_lazy_setfield_1(self): ops = """ [p1, i2, i3] p2 = new_with_vtable(descr=nodesize) setfield_gc(p2, i2, descr=valuedescr) setfield_gc(p1, p2, descr=nextdescr) guard_true(i3) [] i4 = int_neg(i2) setfield_gc(p1, NULL, descr=nextdescr) jump(p1, i2, i4) """ expected = """ [p1, i2, i3] guard_true(i3) [i2, p1] i4 = int_neg(i2) setfield_gc(p1, NULL, descr=nextdescr) jump(p1, i2, i4) """ self.optimize_loop(ops, expected) # # initialize p1.getref_base() to return a random pointer to a NODE # (it doesn't have to be self.nodeaddr, but it's convenient) failargs = self.loop.operations[1].getfailargs() if failargs[0].type == 'r': values = [InputArgRef(self.nodeaddr), InputArgInt(0)] else: values = [InputArgInt(0), InputArgRef(self.nodeaddr)] assert hasattr(self.oparse.getvar('p1'), '_resref') self.oparse.getvar('p1')._resref = self.nodeaddr # self.check_expanded_fail_descr( ''' p1.nextdescr = p2 where p2 is a node_vtable, valuedescr=i2 ''', rop.GUARD_TRUE, values=values) def test_expand_fail_lazy_setfield_2(self): ops = """ [i2, i3] p2 = new_with_vtable(descr=nodesize) setfield_gc(p2, i2, descr=valuedescr) setfield_gc(ConstPtr(myptr), p2, descr=nextdescr) guard_true(i3) [] i4 = int_neg(i2) setfield_gc(ConstPtr(myptr), NULL, descr=nextdescr) jump(i2, i4) """ expected = """ [i2, i3] guard_true(i3) [i2] i4 = int_neg(i2) setfield_gc(ConstPtr(myptr), NULL, descr=nextdescr) jump(i2, i4) """ self.optimize_loop(ops, expected) self.check_expanded_fail_descr(''' ConstPtr(myptr).nextdescr = p2 where p2 is a node_vtable, valuedescr=i2 ''', rop.GUARD_TRUE) def test_residual_call_does_not_invalidate_caches(self): ops = """ [p1, p2] i1 = getfield_gc_i(p1, descr=valuedescr) i2 = call_i(i1, descr=nonwritedescr) i3 = getfield_gc_i(p1, descr=valuedescr) escape_n(i1) escape_n(i3) jump(p1, p2) """ expected = """ [p1, p2] i1 = getfield_gc_i(p1, descr=valuedescr) i2 = call_i(i1, descr=nonwritedescr) escape_n(i1) escape_n(i1) jump(p1, p2) """ self.optimize_loop(ops, expected) def test_residual_call_invalidate_some_caches(self): ops = """ [p1, p2] i1 = getfield_gc_i(p1, descr=adescr) i2 = getfield_gc_i(p1, descr=bdescr) i3 = call_i(i1, descr=writeadescr) i4 = getfield_gc_i(p1, descr=adescr) i5 = getfield_gc_i(p1, descr=bdescr) escape_n(i1) escape_n(i2) escape_n(i4) escape_n(i5) jump(p1, p2) """ expected = """ [p1, p2] i1 = getfield_gc_i(p1, descr=adescr) i2 = getfield_gc_i(p1, descr=bdescr) i3 = call_i(i1, descr=writeadescr) i4 = getfield_gc_i(p1, descr=adescr) escape_n(i1) escape_n(i2) escape_n(i4) escape_n(i2) jump(p1, p2) """ self.optimize_loop(ops, expected) def test_residual_call_invalidate_arrays(self): ops = """ [p1, p2, i1] p3 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p4 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) i3 = call_i(i1, descr=writeadescr) p5 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p6 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) escape_n(p3) escape_n(p4) escape_n(p5) escape_n(p6) jump(p1, p2, i1) """ expected = """ [p1, p2, i1] p3 = getarrayitem_gc_r(p1, 0, descr=arraydescr2) p4 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) i3 = call_i(i1, descr=writeadescr) escape_n(p3) escape_n(p4) escape_n(p3) escape_n(p4) jump(p1, p2, i1) """ self.optimize_loop(ops, expected) def test_residual_call_invalidate_some_arrays(self): ops = """ [p1, p2, i1] p3 = getarrayitem_gc_r(p2, 0, descr=arraydescr2) p4 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) i2 = getarrayitem_gc_i(p1, 1, descr=arraydescr) i3 = call_i(i1, descr=writearraydescr) p5 = getarrayitem_gc_r(p2, 0, descr=arraydescr2) p6 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) i4 = getarrayitem_gc_i(p1, 1, descr=arraydescr) escape_n(p3) escape_n(p4) escape_n(p5) escape_n(p6) escape_n(i2) escape_n(i4) jump(p1, p2, i1) """ expected = """ [p1, p2, i1] p3 = getarrayitem_gc_r(p2, 0, descr=arraydescr2) p4 = getarrayitem_gc_r(p2, 1, descr=arraydescr2) i2 = getarrayitem_gc_i(p1, 1, descr=arraydescr) i3 = call_i(i1, descr=writearraydescr) i4 = getarrayitem_gc_i(p1, 1, descr=arraydescr) escape_n(p3) escape_n(p4) escape_n(p3) escape_n(p4) escape_n(i2) escape_n(i4) jump(p1, p2, i1) """ self.optimize_loop(ops, expected) def test_residual_call_invalidates_some_read_caches_1(self): ops = """ [p1, i1, p2, i2] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, i2, descr=adescr) i3 = call_i(i1, descr=readadescr) setfield_gc(p1, i3, descr=valuedescr) setfield_gc(p2, i3, descr=adescr) jump(p1, i1, p2, i2) """ expected = """ [p1, i1, p2, i2] setfield_gc(p2, i2, descr=adescr) i3 = call_i(i1, descr=readadescr) setfield_gc(p2, i3, descr=adescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i1, p2, i2) """ self.optimize_loop(ops, expected) def test_residual_call_invalidates_some_read_caches_2(self): ops = """ [p1, i1, p2, i2] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, i2, descr=adescr) i3 = call_i(i1, descr=writeadescr) setfield_gc(p2, i3, descr=adescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i1, p2, i2) """ expected = """ [p1, i1, p2, i2] setfield_gc(p2, i2, descr=adescr) i3 = call_i(i1, descr=writeadescr) setfield_gc(p2, i3, descr=adescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i1, p2, i2) """ self.optimize_loop(ops, expected) def test_residual_call_invalidates_some_read_caches_3(self): ops = """ [p1, i1, p2, i2] setfield_gc(p1, i1, descr=valuedescr) setfield_gc(p2, i2, descr=adescr) i3 = call_i(i1, descr=plaincalldescr) setfield_gc(p2, i3, descr=adescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i1, p2, i2) """ expected = """ [p1, i1, p2, i2] setfield_gc(p2, i2, descr=adescr) setfield_gc(p1, i1, descr=valuedescr) i3 = call_i(i1, descr=plaincalldescr) setfield_gc(p2, i3, descr=adescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i1, p2, i2) """ self.optimize_loop(ops, expected) def test_call_assembler_invalidates_caches(self): ops = ''' [p1, i1] setfield_gc(p1, i1, descr=valuedescr) i3 = call_assembler_i(i1, descr=asmdescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i3) ''' self.optimize_loop(ops, ops) def test_call_pure_invalidates_caches(self): # CALL_PURE should still force the setfield_gc() to occur before it ops = ''' [p1, i1] setfield_gc(p1, i1, descr=valuedescr) i3 = call_pure_i(p1, descr=plaincalldescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i3) ''' expected = ''' [p1, i1] setfield_gc(p1, i1, descr=valuedescr) i3 = call_i(p1, descr=plaincalldescr) setfield_gc(p1, i3, descr=valuedescr) jump(p1, i3) ''' self.optimize_loop(ops, expected) def test_call_pure_constant_folding(self): # CALL_PURE is not marked as is_always_pure(), because it is wrong # to call the function arbitrary many times at arbitrary points in # time. Check that it is either constant-folded (and replaced by # the result of the call, recorded as the first arg), or turned into # a regular CALL. arg_consts = [ConstInt(i) for i in (123456, 4, 5, 6)] call_pure_results = {tuple(arg_consts): ConstInt(42)} ops = ''' [i0, i1, i2] escape_n(i1) escape_n(i2) i3 = call_pure_i(123456, 4, 5, 6, descr=plaincalldescr) i4 = call_pure_i(123456, 4, i0, 6, descr=plaincalldescr) jump(i0, i3, i4) ''' expected = ''' [i0, i1, i2] escape_n(i1) escape_n(i2) i4 = call_i(123456, 4, i0, 6, descr=plaincalldescr) jump(i0, 42, i4) ''' self.optimize_loop(ops, expected, call_pure_results) def test_vref_nonvirtual_nonescape(self): ops = """ [p1] p2 = virtual_ref(p1, 5) virtual_ref_finish(p2, p1) jump(p1) """ expected = """ [p1] p0 = force_token() jump(p1) """ self.optimize_loop(ops, expected) def test_vref_nonvirtual_escape(self): ops = """ [p1] p2 = virtual_ref(p1, 5) escape_n(p2) virtual_ref_finish(p2, p1) jump(p1) """ expected = """ [p1] p0 = force_token() p2 = new_with_vtable(descr=vref_descr) setfield_gc(p2, p0, descr=virtualtokendescr) setfield_gc(p2, NULL, descr=virtualforceddescr) escape_n(p2) setfield_gc(p2, NULL, descr=virtualtokendescr) setfield_gc(p2, p1, descr=virtualforceddescr) jump(p1) """ # XXX we should optimize a bit more the case of a nonvirtual. # in theory it is enough to just do 'p2 = p1'. self.optimize_loop(ops, expected) def test_vref_virtual_1(self): ops = """ [p0, i1] # p1 = new_with_vtable(descr=nodesize) p1b = new_with_vtable(descr=nodesize) setfield_gc(p1b, 252, descr=valuedescr) setfield_gc(p1, p1b, descr=nextdescr) # p2 = virtual_ref(p1, 3) setfield_gc(p0, p2, descr=nextdescr) call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [i1] virtual_ref_finish(p2, p1) setfield_gc(p0, NULL, descr=nextdescr) jump(p0, i1) """ expected = """ [p0, i1] p3 = force_token() # p2 = new_with_vtable(descr=vref_descr) setfield_gc(p2, p3, descr=virtualtokendescr) setfield_gc(p2, NULL, descr=virtualforceddescr) setfield_gc(p0, p2, descr=nextdescr) # call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [i1] # setfield_gc(p0, NULL, descr=nextdescr) setfield_gc(p2, NULL, descr=virtualtokendescr) p1 = new_with_vtable(descr=nodesize) p1b = new_with_vtable(descr=nodesize) setfield_gc(p1b, 252, descr=valuedescr) setfield_gc(p1, p1b, descr=nextdescr) setfield_gc(p2, p1, descr=virtualforceddescr) jump(p0, i1) """ self.optimize_loop(ops, expected) def test_vref_virtual_2(self): ops = """ [p0, i1] # p1 = new_with_vtable(descr=nodesize) p1b = new_with_vtable(descr=nodesize) setfield_gc(p1b, i1, descr=valuedescr) setfield_gc(p1, p1b, descr=nextdescr) # p2 = virtual_ref(p1, 2) setfield_gc(p0, p2, descr=nextdescr) call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [p2, p1] virtual_ref_finish(p2, p1) setfield_gc(p0, NULL, descr=nextdescr) jump(p0, i1) """ expected = """ [p0, i1] p3 = force_token() # p2 = new_with_vtable(descr=vref_descr) setfield_gc(p2, p3, descr=virtualtokendescr) setfield_gc(p2, NULL, descr=virtualforceddescr) setfield_gc(p0, p2, descr=nextdescr) # call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [p2, i1] # setfield_gc(p0, NULL, descr=nextdescr) setfield_gc(p2, NULL, descr=virtualtokendescr) p1 = new_with_vtable(descr=nodesize) p1b = new_with_vtable(descr=nodesize) setfield_gc(p1b, i1, descr=valuedescr) setfield_gc(p1, p1b, descr=nextdescr) setfield_gc(p2, p1, descr=virtualforceddescr) jump(p0, i1) """ # the point of this test is that 'i1' should show up in the fail_args # of 'guard_not_forced', because it was stored in the virtual 'p1b'. self.optimize_loop(ops, expected) self.check_expanded_fail_descr('''p2, p1 where p1 is a node_vtable, nextdescr=p1b where p1b is a node_vtable, valuedescr=i1 ''', rop.GUARD_NOT_FORCED) @pytest.mark.xfail def test_vref_virtual_and_lazy_setfield(self): ops = """ [p0, i1] # p1 = new_with_vtable(descr=nodesize) p1b = new_with_vtable(descr=nodesize) setfield_gc(p1b, i1, descr=valuedescr) setfield_gc(p1, p1b, descr=nextdescr) # p2 = virtual_ref(p1, 2) setfield_gc(p0, p2, descr=refdescr) call_n(i1, descr=nonwritedescr) guard_no_exception() [p2, p1] virtual_ref_finish(p2, p1) setfield_gc(p0, NULL, descr=refdescr) jump(p0, i1) """ expected = """ [p0, i1] p3 = force_token() call_n(i1, descr=nonwritedescr) guard_no_exception() [p3, i1, p0] setfield_gc(p0, NULL, descr=refdescr) jump(p0, i1) """ self.optimize_loop(ops, expected) # the fail_args contain [p3, i1, p0]: # - p3 is from the virtual expansion of p2 # - i1 is from the virtual expansion of p1 # - p0 is from the extra pendingfields self.loop.inputargs[0].setref_base(self.nodeobjvalue) self.check_expanded_fail_descr('''p2, p1 p0.refdescr = p2 where p2 is a jit_virtual_ref_vtable, virtualtokendescr=p3 where p1 is a node_vtable, nextdescr=p1b where p1b is a node_vtable, valuedescr=i1 ''', rop.GUARD_NO_EXCEPTION) def test_vref_virtual_after_finish(self): ops = """ [i1] p1 = new_with_vtable(descr=nodesize) p2 = virtual_ref(p1, 7) escape_n(p2) virtual_ref_finish(p2, p1) call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [] jump(i1) """ expected = """ [i1] p3 = force_token() p2 = new_with_vtable(descr=vref_descr) setfield_gc(p2, p3, descr=virtualtokendescr) setfield_gc(p2, NULL, descr=virtualforceddescr) escape_n(p2) p1 = new_with_vtable(descr=nodesize) setfield_gc(p2, p1, descr=virtualforceddescr) setfield_gc(p2, NULL, descr=virtualtokendescr) call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [] jump(i1) """ self.optimize_loop(ops, expected) def test_vref_nonvirtual_and_lazy_setfield(self): ops = """ [i1, p1] p2 = virtual_ref(p1, 23) escape_n(p2) virtual_ref_finish(p2, p1) call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [i1] jump(i1, p1) """ expected = """ [i1, p1] p3 = force_token() p2 = new_with_vtable(descr=vref_descr) setfield_gc(p2, p3, descr=virtualtokendescr) setfield_gc(p2, NULL, descr=virtualforceddescr) escape_n(p2) setfield_gc(p2, p1, descr=virtualforceddescr) setfield_gc(p2, NULL, descr=virtualtokendescr) call_may_force_n(i1, descr=mayforcevirtdescr) guard_not_forced() [i1] jump(i1, p1) """ self.optimize_loop(ops, expected) def test_arraycopy_1(self): ops = ''' [i0] p1 = new_array(3, descr=arraydescr) setarrayitem_gc(p1, 1, 1, descr=arraydescr) p2 = new_array(3, descr=arraydescr) setarrayitem_gc(p2, 1, 3, descr=arraydescr) call_n(0, p1, p2, 1, 1, 2, descr=arraycopydescr) i2 = getarrayitem_gc_i(p2, 1, descr=arraydescr) jump(i2) ''' expected = ''' [i0] jump(1) ''' self.optimize_loop(ops, expected) def test_arraycopy_2(self): ops = ''' [i0] p1 = new_array(3, descr=arraydescr) p2 = new_array(3, descr=arraydescr) setarrayitem_gc(p1, 0, i0, descr=arraydescr) setarrayitem_gc(p2, 0, 3, descr=arraydescr) call_n(0, p1, p2, 1, 1, 2, descr=arraycopydescr) i2 = getarrayitem_gc_i(p2, 0, descr=arraydescr) jump(i2) ''' expected = ''' [i0] jump(3) ''' self.optimize_loop(ops, expected) def test_arraycopy_not_virtual(self): ops = ''' [p0] p1 = new_array(3, descr=arraydescr) p2 = new_array(3, descr=arraydescr) setarrayitem_gc(p1, 2, 10, descr=arraydescr) setarrayitem_gc(p2, 2, 13, descr=arraydescr) call_n(0, p1, p2, 0, 0, 3, descr=arraycopydescr) jump(p2) ''' expected = ''' [p0] p2 = new_array(3, descr=arraydescr) setarrayitem_gc(p2, 2, 10, descr=arraydescr) jump(p2) ''' self.optimize_loop(ops, expected) def test_arraycopy_not_virtual_2(self): ops = ''' [p0] p1 = new_array(3, descr=arraydescr) call_n(0, p0, p1, 0, 0, 3, descr=arraycopydescr) i0 = getarrayitem_gc_i(p1, 0, descr=arraydescr) jump(i0) ''' expected = ''' [p0] i0 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i1 = getarrayitem_gc_i(p0, 1, descr=arraydescr) # removed by the backend i2 = getarrayitem_gc_i(p0, 2, descr=arraydescr) # removed by the backend jump(i0) ''' self.optimize_loop(ops, expected) def test_arraycopy_not_virtual_3(self): ops = ''' [p0, p1] call_n(0, p0, p1, 0, 0, 3, descr=arraycopydescr) i0 = getarrayitem_gc_i(p1, 0, descr=arraydescr) jump(i0) ''' expected = ''' [p0, p1] i0 = getarrayitem_gc_i(p0, 0, descr=arraydescr) i1 = getarrayitem_gc_i(p0, 1, descr=arraydescr) i2 = getarrayitem_gc_i(p0, 2, descr=arraydescr) setarrayitem_gc(p1, 0, i0, descr=arraydescr) setarrayitem_gc(p1, 1, i1, descr=arraydescr) setarrayitem_gc(p1, 2, i2, descr=arraydescr) jump(i0) ''' self.optimize_loop(ops, expected) def test_arraycopy_no_elem(self): """ this was actually observed in the wild """ ops = ''' [p1] p0 = new_array(0, descr=arraydescr) call_n(0, p0, p1, 0, 0, 0, descr=arraycopydescr) jump(p1) ''' expected = ''' [p1] jump(p1) ''' self.optimize_loop(ops, expected) def test_arraycopy_invalidate_1(self): ops = """ [i5] p0 = escape_r() p1 = new_array_clear(i5, descr=arraydescr) call_n(0, p0, p1, 0, 0, i5, descr=arraycopydescr) i2 = getarrayitem_gc_i(p1, 0, descr=arraydescr) # != NULL jump(i2) """ self.optimize_loop(ops, ops) def test_arraycopy_invalidate_2(self): ops = """ [i5] p0 = escape_r() p1 = new_array_clear(i5, descr=arraydescr) call_n(0, p0, p1, 0, 0, 100, descr=arraycopydescr) i2 = getarrayitem_gc_i(p1, 0, descr=arraydescr) # != NULL jump(i2) """ self.optimize_loop(ops, ops) def test_arraycopy_invalidate_3(self): ops = """ [i5] p0 = escape_r() p1 = new_array_clear(100, descr=arraydescr) call_n(0, p0, p1, 0, 0, i5, descr=arraycopydescr) i2 = getarrayitem_gc_i(p1, 0, descr=arraydescr) # != NULL jump(i2) """ self.optimize_loop(ops, ops) def test_arraycopy_invalidate_4(self): ops = """ [i5] p0 = escape_r() p1 = new_array_clear(100, descr=arraydescr) call_n(0, p0, p1, 0, 0, 100, descr=arraycopydescr) i2 = getarrayitem_gc_i(p1, 0, descr=arraydescr) # != NULL jump(i2) """ self.optimize_loop(ops, ops) def test_arraymove_1(self): ops = ''' [i0] p1 = new_array(6, descr=arraydescr) setarrayitem_gc(p1, 1, i0, descr=arraydescr) call_n(0, p1, 0, 2, 0, descr=arraymovedescr) # 0-length arraymove i2 = getarrayitem_gc_i(p1, 1, descr=arraydescr) jump(i2) ''' expected = ''' [i0] jump(i0) ''' self.optimize_loop(ops, expected) def test_framestackdepth_overhead(self): ops = """ [p0, i22] i1 = getfield_gc_i(p0, descr=valuedescr) i2 = int_gt(i1, i22) guard_false(i2) [] i3 = int_add(i1, 1) setfield_gc(p0, i3, descr=valuedescr) i4 = int_sub(i3, 1) setfield_gc(p0, i4, descr=valuedescr) i5 = int_gt(i4, i22) guard_false(i5) [] i6 = int_add(i4, 1) p331 = force_token() i7 = int_sub(i6, 1) setfield_gc(p0, i7, descr=valuedescr) jump(p0, i22) """ expected = """ [p0, i22] i1 = getfield_gc_i(p0, descr=valuedescr) i2 = int_gt(i1, i22) guard_false(i2) [] i3 = int_add(i1, 1) p331 = force_token() jump(p0, i22) """ self.optimize_loop(ops, expected) # ---------- def optimize_strunicode_loop(self, ops, optops): # check with the arguments passed in self.optimize_loop(ops, optops) # check with replacing 'str' with 'unicode' everywhere self.optimize_loop(ops.replace('str','unicode').replace('s"', 'u"'), optops.replace('str','unicode').replace('s"', 'u"')) def test_newstr_1(self): ops = """ [i0] p1 = newstr(1) strsetitem(p1, 0, i0) i1 = strgetitem(p1, 0) jump(i1) """ expected = """ [i0] jump(i0) """ self.optimize_strunicode_loop(ops, expected) def test_newstr_2(self): ops = """ [i0, i1] p1 = newstr(2) strsetitem(p1, 0, i0) strsetitem(p1, 1, i1) i2 = strgetitem(p1, 1) i3 = strgetitem(p1, 0) jump(i2, i3) """ expected = """ [i0, i1] jump(i1, i0) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_1(self): ops = """ [p1, p2] p3 = call_r(0, p1, p2, descr=strconcatdescr) jump(p2, p3) """ expected = """ [p1, p2] i1 = strlen(p1) i2 = strlen(p2) i3 = int_add(i1, i2) p3 = newstr(i3) copystrcontent(p1, p3, 0, 0, i1) copystrcontent(p2, p3, 0, i1, i2) jump(p2, p3) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_2(self): ops = """ [p1, p2] p3 = call_r(0, s"fo", p1, descr=strconcatdescr) escape_n(p3) i5 = strgetitem(p3, 0) escape_n(i5) jump(p2, p3) """ expected = """ [p1, p2] i1 = strlen(p1) i0 = int_add(2, i1) p5 = newstr(i0) strsetitem(p5, 0, 102) strsetitem(p5, 1, 111) copystrcontent(p1, p5, 0, 2, i1) escape_n(p5) escape_n(102) jump(p2, p5) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_vstr2_str(self): ops = """ [i0, i1, p2] p1 = newstr(2) strsetitem(p1, 0, i0) strsetitem(p1, 1, i1) p3 = call_r(0, p1, p2, descr=strconcatdescr) jump(i1, i0, p3) """ expected = """ [i0, i1, p2] i2 = strlen(p2) i3 = int_add(2, i2) p3 = newstr(i3) strsetitem(p3, 0, i0) strsetitem(p3, 1, i1) copystrcontent(p2, p3, 0, 2, i2) jump(i1, i0, p3) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_vstr2_str_2(self): ops = """ [i0, i1, p2] p1 = newstr(2) strsetitem(p1, 0, i0) strsetitem(p1, 1, i1) escape_n(p1) p3 = call_r(0, p1, p2, descr=strconcatdescr) jump(i1, i0, p3) """ expected = """ [i0, i1, p2] p1 = newstr(2) strsetitem(p1, 0, i0) strsetitem(p1, 1, i1) escape_n(p1) i2 = strlen(p2) i3 = int_add(2, i2) p3 = newstr(i3) strsetitem(p3, 0, i0) strsetitem(p3, 1, i1) copystrcontent(p2, p3, 0, 2, i2) jump(i1, i0, p3) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_str_vstr2(self): ops = """ [i0, i1, p2] p1 = newstr(2) strsetitem(p1, 0, i0) strsetitem(p1, 1, i1) p3 = call_r(0, p2, p1, descr=strconcatdescr) jump(i1, i0, p3) """ expected = """ [i0, i1, p2] i2 = strlen(p2) i3 = int_add(i2, 2) p3 = newstr(i3) copystrcontent(p2, p3, 0, 0, i2) strsetitem(p3, i2, i0) i5 = int_add(i2, 1) strsetitem(p3, i5, i1) jump(i1, i0, p3) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_str_str_str(self): ops = """ [p1, p2, p3] p4 = call_r(0, p1, p2, descr=strconcatdescr) p5 = call_r(0, p4, p3, descr=strconcatdescr) jump(p2, p3, p5) """ expected = """ [p1, p2, p3] i1 = strlen(p1) i2 = strlen(p2) i12 = int_add(i1, i2) i3 = strlen(p3) i123 = int_add(i12, i3) p5 = newstr(i123) copystrcontent(p1, p5, 0, 0, i1) copystrcontent(p2, p5, 0, i1, i2) copystrcontent(p3, p5, 0, i12, i3) jump(p2, p3, p5) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_str_cstr1(self): ops = """ [p2] p3 = call_r(0, p2, s"x", descr=strconcatdescr) jump(p3) """ expected = """ [p2] i2 = strlen(p2) i3 = int_add(i2, 1) p3 = newstr(i3) copystrcontent(p2, p3, 0, 0, i2) strsetitem(p3, i2, 120) # == ord('x') jump(p3) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_consts(self): ops = """ [] p1 = same_as_r(s"ab") p2 = same_as_r(s"cde") p3 = call_r(0, p1, p2, descr=strconcatdescr) escape_n(p3) jump() """ expected = """ [] escape_n(s"abcde") jump() """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_constant_lengths(self): ops = """ [i0] p0 = newstr(1) strsetitem(p0, 0, i0) p1 = newstr(0) p2 = call_r(0, p0, p1, descr=strconcatdescr) i1 = call_i(0, p2, p0, descr=strequaldescr) finish(i1) """ expected = """ [i0] finish(1) """ self.optimize_strunicode_loop(ops, expected) def test_str_concat_constant_lengths_2(self): ops = """ [i0] p0 = newstr(0) p1 = newstr(1) strsetitem(p1, 0, i0) p2 = call_r(0, p0, p1, descr=strconcatdescr) i1 = call_i(0, p2, p1, descr=strequaldescr) finish(i1) """ expected = """ [i0] finish(1) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_1(self): ops = """ [p1, i1, i2] p2 = call_r(0, p1, i1, i2, descr=strslicedescr) jump(p2, i1, i2) """ expected = """ [p1, i1, i2] i3 = int_sub(i2, i1) p2 = newstr(i3) copystrcontent(p1, p2, i1, 0, i3) jump(p2, i1, i2) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_2(self): ops = """ [p1, i2] p2 = call_r(0, p1, 0, i2, descr=strslicedescr) jump(p2, i2) """ expected = """ [p1, i2] p2 = newstr(i2) copystrcontent(p1, p2, 0, 0, i2) jump(p2, i2) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_3(self): ops = """ [p1, i1, i2, i3, i4] p2 = call_r(0, p1, i1, i2, descr=strslicedescr) p3 = call_r(0, p2, i3, i4, descr=strslicedescr) jump(p3, i1, i2, i3, i4) """ expected = """ [p1, i1, i2, i3, i4] i0 = int_sub(i2, i1) # killed by the backend i5 = int_sub(i4, i3) i6 = int_add(i1, i3) p3 = newstr(i5) copystrcontent(p1, p3, i6, 0, i5) jump(p3, i1, i2, i3, i4) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_getitem1(self): ops = """ [p1, i1, i2, i3] p2 = call_r(0, p1, i1, i2, descr=strslicedescr) i4 = strgetitem(p2, i3) escape_n(i4) jump(p1, i1, i2, i3) """ expected = """ [p1, i1, i2, i3] i6 = int_sub(i2, i1) # killed by the backend i5 = int_add(i1, i3) i4 = strgetitem(p1, i5) escape_n(i4) jump(p1, i1, i2, i3) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_plain(self): ops = """ [i3, i4] p1 = newstr(2) strsetitem(p1, 0, i3) strsetitem(p1, 1, i4) p2 = call_r(0, p1, 1, 2, descr=strslicedescr) i5 = strgetitem(p2, 0) escape_n(i5) jump(i3, i4) """ expected = """ [i3, i4] escape_n(i4) jump(i3, i4) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_concat(self): ops = """ [p1, i1, i2, p2] p3 = call_r(0, p1, i1, i2, descr=strslicedescr) p4 = call_r(0, p3, p2, descr=strconcatdescr) jump(p4, i1, i2, p2) """ expected = """ [p1, i1, i2, p2] i3 = int_sub(i2, i1) # length of p3 i4 = strlen(p2) i5 = int_add(i3, i4) p4 = newstr(i5) copystrcontent(p1, p4, i1, 0, i3) copystrcontent(p2, p4, 0, i3, i4) jump(p4, i1, i2, p2) """ self.optimize_strunicode_loop(ops, expected) def test_str_slice_plain_virtual(self): ops = """ [] p0 = newstr(11) copystrcontent(s"hello world", p0, 0, 0, 11) p1 = call_r(0, p0, 0, 5, descr=strslicedescr) finish(p1) """ expected = """ [] finish(s"hello") """ self.optimize_strunicode_loop(ops, expected) # ---------- def optimize_strunicode_loop_extradescrs(self, ops, optops): self.optimize_strunicode_loop(ops, optops) def test_str_equal_noop1(self): ops = """ [p1, p2] i0 = call_i(0, p1, p2, descr=strequaldescr) escape_n(i0) jump(p1, p2) """ self.optimize_strunicode_loop_extradescrs(ops, ops) def test_str_equal_noop2(self): ops = """ [p1, p2, p3] p4 = call_r(0, p1, p2, descr=strconcatdescr) i0 = call_i(0, p3, p4, descr=strequaldescr) escape_n(i0) jump(p1, p2, p3) """ expected = """ [p1, p2, p3] i1 = strlen(p1) i2 = strlen(p2) i3 = int_add(i1, i2) p4 = newstr(i3) copystrcontent(p1, p4, 0, 0, i1) copystrcontent(p2, p4, 0, i1, i2) i0 = call_i(0, p3, p4, descr=strequaldescr) escape_n(i0) jump(p1, p2, p3) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_slice1(self): ops = """ [p1, i1, i2, p3] p4 = call_r(0, p1, i1, i2, descr=strslicedescr) i0 = call_i(0, p4, p3, descr=strequaldescr) escape_n(i0) jump(p1, i1, i2, p3) """ expected = """ [p1, i1, i2, p3] i3 = int_sub(i2, i1) i0 = call_i(0, p1, i1, i3, p3, descr=streq_slice_checknull_descr) escape_n(i0) jump(p1, i1, i2, p3) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_slice2(self): ops = """ [p1, i1, i2, p3] p4 = call_r(0, p1, i1, i2, descr=strslicedescr) i0 = call_i(0, p3, p4, descr=strequaldescr) escape_n(i0) jump(p1, i1, i2, p3) """ expected = """ [p1, i1, i2, p3] i4 = int_sub(i2, i1) i0 = call_i(0, p1, i1, i4, p3, descr=streq_slice_checknull_descr) escape_n(i0) jump(p1, i1, i2, p3) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_slice3(self): ops = """ [p1, i1, i2, p3] guard_nonnull(p3) [] p4 = call_r(0, p1, i1, i2, descr=strslicedescr) i0 = call_i(0, p3, p4, descr=strequaldescr) escape_n(i0) jump(p1, i1, i2, p3) """ expected = """ [p1, i1, i2, p3] guard_nonnull(p3) [] i4 = int_sub(i2, i1) i0 = call_i(0, p1, i1, i4, p3, descr=streq_slice_nonnull_descr) escape_n(i0) jump(p1, i1, i2, p3) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_slice4(self): ops = """ [p1, i1, i2] p3 = call_r(0, p1, i1, i2, descr=strslicedescr) i0 = call_i(0, p3, s"x", descr=strequaldescr) escape_n(i0) jump(p1, i1, i2) """ expected = """ [p1, i1, i2] i3 = int_sub(i2, i1) i0 = call_i(0, p1, i1, i3, 120, descr=streq_slice_char_descr) escape_n(i0) jump(p1, i1, i2) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_slice5(self): ops = """ [p1, i1, i2, i3] p4 = call_r(0, p1, i1, i2, descr=strslicedescr) p5 = newstr(1) strsetitem(p5, 0, i3) i0 = call_i(0, p5, p4, descr=strequaldescr) escape_n(i0) jump(p1, i1, i2, i3) """ expected = """ [p1, i1, i2, i3] i4 = int_sub(i2, i1) i0 = call_i(0, p1, i1, i4, i3, descr=streq_slice_char_descr) escape_n(i0) jump(p1, i1, i2, i3) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_none1(self): ops = """ [p1] i0 = call_i(0, p1, NULL, descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] i0 = ptr_eq(p1, NULL) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_none2(self): ops = """ [p1] i0 = call_i(0, NULL, p1, descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] i0 = ptr_eq(p1, NULL) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_none3(self): ops = """ [] p5 = newstr(0) i0 = call_i(0, NULL, p5, descr=strequaldescr) escape_n(i0) jump() """ expected = """ [] escape_n(0) jump() """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_none4(self): ops = """ [p1] p5 = newstr(0) i0 = call_i(0, p5, p1, descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] # can't optimize more: p1 may be NULL! i0 = call_i(0, s"", p1, descr=strequaldescr) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_none5(self): ops = """ [p1] guard_nonnull(p1) [] p5 = newstr(0) i0 = call_i(0, p5, p1, descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] guard_nonnull(p1) [] # p1 is not NULL, so the string comparison (p1=="") becomes: i6 = strlen(p1) i0 = int_is_zero(i6) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_nonnull1(self): ops = """ [p1] guard_nonnull(p1) [] i0 = call_i(0, p1, s"hello world", descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] guard_nonnull(p1) [] i0 = call_i(0, p1, s"hello world", descr=streq_nonnull_descr) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_nonnull2(self): ops = """ [p1] guard_nonnull(p1) [] i0 = call_i(0, p1, s"", descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] guard_nonnull(p1) [] i1 = strlen(p1) i0 = int_is_zero(i1) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_nonnull3(self): ops = """ [p1] guard_nonnull(p1) [] i0 = call_i(0, p1, s"x", descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] guard_nonnull(p1) [] i0 = call_i(0, p1, 120, descr=streq_nonnull_char_descr) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_nonnull4(self): ops = """ [p1, p2] p4 = call_r(0, p1, p2, descr=strconcatdescr) i0 = call_i(0, s"hello world", p4, descr=strequaldescr) escape_n(i0) jump(p1, p2) """ expected = """ [p1, p2] i1 = strlen(p1) i2 = strlen(p2) i3 = int_add(i1, i2) p4 = newstr(i3) copystrcontent(p1, p4, 0, 0, i1) copystrcontent(p2, p4, 0, i1, i2) i0 = call_i(0, s"hello world", p4, descr=streq_nonnull_descr) escape_n(i0) jump(p1, p2) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_chars0(self): ops = """ [i1] p1 = newstr(0) i0 = call_i(0, p1, s"", descr=strequaldescr) escape_n(i0) jump(i1) """ expected = """ [i1] escape_n(1) jump(i1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_chars1(self): ops = """ [i1] p1 = newstr(1) strsetitem(p1, 0, i1) i0 = call_i(0, p1, s"x", descr=strequaldescr) escape_n(i0) jump(i1) """ expected = """ [i1] i0 = int_eq(i1, 120) # ord('x') escape_n(i0) jump(i1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_chars2(self): ops = """ [i1, i2] p1 = newstr(2) strsetitem(p1, 0, i1) strsetitem(p1, 1, i2) i0 = call_i(0, p1, s"xy", descr=strequaldescr) escape_n(i0) jump(i1, i2) """ expected = """ [i1, i2] p1 = newstr(2) strsetitem(p1, 0, i1) strsetitem(p1, 1, i2) i0 = call_i(0, p1, s"xy", descr=streq_lengthok_descr) escape_n(i0) jump(i1, i2) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_chars3(self): ops = """ [p1] i0 = call_i(0, s"x", p1, descr=strequaldescr) escape_n(i0) jump(p1) """ expected = """ [p1] i0 = call_i(0, p1, 120, descr=streq_checknull_char_descr) escape_n(i0) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str_equal_lengthmismatch1(self): ops = """ [i1] p1 = newstr(1) strsetitem(p1, 0, i1) i0 = call_i(0, s"xy", p1, descr=strequaldescr) escape_n(i0) jump(i1) """ expected = """ [i1] escape_n(0) jump(i1) """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str2unicode_constant(self): ops = """ [] p0 = call_r(0, "xy", descr=s2u_descr) # string -> unicode escape_n(p0) jump() """ expected = """ [] escape_n(u"xy") jump() """ self.optimize_strunicode_loop_extradescrs(ops, expected) def test_str2unicode_nonconstant(self): ops = """ [p0] p1 = call_r(0, p0, descr=s2u_descr) # string -> unicode escape_n(p1) jump(p1) """ self.optimize_strunicode_loop_extradescrs(ops, ops) # more generally, supporting non-constant but virtual cases is # not obvious, because of the exception UnicodeDecodeError that # can be raised by ll_str2unicode() def test_strgetitem_repeated(self): ops = """ [p0, i0] i1 = strgetitem(p0, i0) i2 = strgetitem(p0, i0) i3 = int_eq(i1, i2) guard_true(i3) [] escape_n(i2) jump(p0, i0) """ expected = """ [p0, i0] i1 = strgetitem(p0, i0) escape_n(i1) jump(p0, i0) """ self.optimize_strunicode_loop(ops, expected) def test_strslice_subtraction_folds(self): ops = """ [p0, i0] i1 = int_add(i0, 1) p1 = call_r(0, p0, i0, i1, descr=strslicedescr) escape_n(p1) jump(p0, i1) """ expected = """ [p0, i0] i1 = int_add(i0, 1) p1 = newstr(1) i2 = strgetitem(p0, i0) strsetitem(p1, 0, i2) escape_n(p1) jump(p0, i1) """ self.optimize_strunicode_loop(ops, expected) def test_float_mul_reversed(self): ops = """ [f0, f1] f2 = float_mul(f0, f1) f3 = float_mul(f1, f0) jump(f2, f3) """ expected = """ [f0, f1] f2 = float_mul(f0, f1) jump(f2, f2) """ self.optimize_loop(ops, expected) def test_null_char_str(self): ops = """ [p0] p1 = newstr(4) strsetitem(p1, 2, 0) setfield_gc(p0, p1, descr=valuedescr) jump(p0) """ # This test is slightly bogus: the string is not fully initialized. # I *think* it is still right to not have a series of extra # strsetitem(p1, idx, 0). We do preserve the single one from the # source, though. expected = """ [p0] p1 = newstr(4) strsetitem(p1, 2, 0) setfield_gc(p0, p1, descr=valuedescr) jump(p0) """ self.optimize_strunicode_loop(ops, expected) def test_newstr_strlen(self): ops = """ [i0] p0 = newstr(i0) escape_n(p0) i1 = strlen(p0) i2 = int_add(i1, 1) jump(i2) """ expected = """ [i0] p0 = newstr(i0) escape_n(p0) i1 = int_add(i0, 1) jump(i1) """ self.optimize_strunicode_loop(ops, expected) def test_bounded_lazy_setfield(self): ops = """ [p0, i0] i1 = int_gt(i0, 2) guard_true(i1) [] setarrayitem_gc(p0, 0, 3, descr=arraydescr) setarrayitem_gc(p0, 2, 4, descr=arraydescr) setarrayitem_gc(p0, i0, 15, descr=arraydescr) i2 = getarrayitem_gc_i(p0, 2, descr=arraydescr) jump(p0, i2) """ # Remove the getarrayitem_gc, because we know that p[i0] does not alias # p0[2] expected = """ [p0, i0] i1 = int_gt(i0, 2) guard_true(i1) [] setarrayitem_gc(p0, i0, 15, descr=arraydescr) setarrayitem_gc(p0, 0, 3, descr=arraydescr) setarrayitem_gc(p0, 2, 4, descr=arraydescr) jump(p0, 4) """ self.optimize_loop(ops, expected) def test_empty_copystrunicontent(self): ops = """ [p0, p1, i0, i2, i3] i4 = int_eq(i3, 0) guard_true(i4) [] copystrcontent(p0, p1, i0, i2, i3) jump(p0, p1, i0, i2, i3) """ expected = """ [p0, p1, i0, i2, i3] i4 = int_is_zero(i3) guard_true(i4) [] jump(p0, p1, i0, i2, 0) """ self.optimize_strunicode_loop(ops, expected) def test_empty_copystrunicontent_virtual(self): ops = """ [p0] p1 = newstr(23) copystrcontent(p0, p1, 0, 0, 0) jump(p0) """ expected = """ [p0] jump(p0) """ self.optimize_strunicode_loop(ops, expected) @pytest.mark.xfail def test_forced_virtuals_aliasing(self): ops = """ [i0, i1] p0 = new(descr=ssize) p1 = new(descr=ssize) escape_n(p0) escape_n(p1) setfield_gc(p0, i0, descr=adescr) setfield_gc(p1, i1, descr=adescr) i2 = getfield_gc_i(p0, descr=adescr) jump(i2, i2) """ expected = """ [i0, i1] p0 = new(descr=ssize) escape_n(p0) p1 = new(descr=ssize) escape_n(p1) setfield_gc(p0, i0, descr=adescr) setfield_gc(p1, i1, descr=adescr) jump(i0, i0) """ # setfields on things that used to be virtual still can't alias each # other self.optimize_loop(ops, expected) def test_plain_virtual_string_copy_content(self): ops = """ [i1] p0 = newstr(6) copystrcontent(s"hello!", p0, 0, 0, 6) p1 = call_r(0, p0, s"abc123", descr=strconcatdescr) i0 = strgetitem(p1, i1) finish(i0) """ expected = """ [i1] i0 = strgetitem(s"hello!abc123", i1) finish(i0) """ self.optimize_strunicode_loop(ops, expected) def test_plain_virtual_string_copy_content_2(self): ops = """ [] p0 = newstr(6) copystrcontent(s"hello!", p0, 0, 0, 6) p1 = call_r(0, p0, s"abc123", descr=strconcatdescr) i0 = strgetitem(p1, 0) finish(i0) """ expected = """ [] finish(104) """ self.optimize_strunicode_loop(ops, expected) def test_nonvirtual_newstr_strlen(self): ops = """ [p0] p1 = call_r(0, p0, s"X", descr=strconcatdescr) i0 = strlen(p1) finish(i0) """ expected = """ [p0] i2 = strlen(p0) i4 = int_add(i2, 1) finish(i4) """ self.optimize_strunicode_loop(ops, expected) def test_copy_long_string_to_virtual(self): ops = """ [] p0 = newstr(20) copystrcontent(s"aaaaaaaaaaaaaaaaaaaa", p0, 0, 0, 20) jump(p0) """ expected = """ [] jump(s"aaaaaaaaaaaaaaaaaaaa") """ self.optimize_strunicode_loop(ops, expected) def test_ptr_eq_str_constant(self): ops = """ [] i0 = ptr_eq(s"abc", s"\x00") finish(i0) """ expected = """ [] finish(0) """ self.optimize_loop(ops, expected) @pytest.mark.xfail def test_known_equal_ints(self): ops = """ [i0, i1, i2, p0] i3 = int_eq(i0, i1) guard_true(i3) [] i4 = int_lt(i2, i0) guard_true(i4) [] i5 = int_lt(i2, i1) guard_true(i5) [] i6 = getarrayitem_gc_i(p0, i2, descr=chararraydescr) finish(i6) """ expected = """ [i0, i1, i2, p0] i3 = int_eq(i0, i1) guard_true(i3) [] i4 = int_lt(i2, i0) guard_true(i4) [] i6 = getarrayitem_gc_i(p0, i3, descr=chararraydescr) finish(i6) """ self.optimize_loop(ops, expected) def test_str_copy_virtual(self): ops = """ [i0] p0 = newstr(8) strsetitem(p0, 0, i0) strsetitem(p0, 1, i0) strsetitem(p0, 2, i0) strsetitem(p0, 3, i0) strsetitem(p0, 4, i0) strsetitem(p0, 5, i0) strsetitem(p0, 6, i0) strsetitem(p0, 7, i0) p1 = newstr(12) copystrcontent(p0, p1, 0, 0, 8) strsetitem(p1, 8, 3) strsetitem(p1, 9, 0) strsetitem(p1, 10, 0) strsetitem(p1, 11, 0) finish(p1) """ expected = """ [i0] p1 = newstr(12) strsetitem(p1, 0, i0) strsetitem(p1, 1, i0) strsetitem(p1, 2, i0) strsetitem(p1, 3, i0) strsetitem(p1, 4, i0) strsetitem(p1, 5, i0) strsetitem(p1, 6, i0) strsetitem(p1, 7, i0) strsetitem(p1, 8, 3) strsetitem(p1, 9, 0) strsetitem(p1, 10, 0) strsetitem(p1, 11, 0) finish(p1) """ self.optimize_strunicode_loop(ops, expected) def test_str_copy_constant_virtual(self): ops = """ [] p0 = newstr(10) copystrcontent(s"abcd", p0, 0, 0, 4) strsetitem(p0, 4, 101) copystrcontent(s"fghij", p0, 0, 5, 5) finish(p0) """ expected = """ [] finish(s"abcdefghij") """ self.optimize_strunicode_loop(ops, expected) def test_str_copy_virtual_src_concrete_dst(self): ops = """ [p0] p1 = newstr(2) strsetitem(p1, 0, 101) strsetitem(p1, 1, 102) copystrcontent(p1, p0, 0, 0, 2) finish(p0) """ expected = """ [p0] strsetitem(p0, 0, 101) strsetitem(p0, 1, 102) finish(p0) """ self.optimize_strunicode_loop(ops, expected) def test_str_copy_bug1(self): ops = """ [i0] p1 = newstr(1) strsetitem(p1, 0, i0) p2 = newstr(1) escape_n(p2) copystrcontent(p1, p2, 0, 0, 1) finish() """ expected = """ [i0] p2 = newstr(1) escape_n(p2) strsetitem(p2, 0, i0) finish() """ self.optimize_strunicode_loop(ops, expected) def test_call_pure_vstring_const(self): ops = """ [] p0 = newstr(3) strsetitem(p0, 0, 97) strsetitem(p0, 1, 98) strsetitem(p0, 2, 99) i0 = call_pure_i(123, p0, descr=nonwritedescr) finish(i0) """ expected = """ [] finish(5) """ call_pure_results = { (ConstInt(123), get_const_ptr_for_string("abc"),): ConstInt(5), } self.optimize_loop(ops, expected, call_pure_results) def test_call_pure_quasiimmut(self): ops = """ [] quasiimmut_field(ConstPtr(quasiptr), descr=quasiimmutdescr) guard_not_invalidated() [] i0 = getfield_gc_i(ConstPtr(quasiptr), descr=quasifielddescr) i1 = call_pure_i(123, i0, descr=nonwritedescr) finish(i1) """ expected = """ [] guard_not_invalidated() [] finish(5) """ call_pure_results = { (ConstInt(123), ConstInt(-4247)): ConstInt(5), } self.optimize_loop(ops, expected, call_pure_results) def test_guard_not_forced_2_virtual(self): ops = """ [i0] p0 = new_array(3, descr=arraydescr) guard_not_forced_2() [p0] finish(p0) """ self.optimize_loop(ops, ops) def test_getfield_cmp_above_bounds(self): ops = """ [p0] i0 = getfield_gc_i(p0, descr=chardescr) i1 = int_lt(i0, 256) guard_true(i1) [] """ expected = """ [p0] i0 = getfield_gc_i(p0, descr=chardescr) """ self.optimize_loop(ops, expected) def test_getfield_cmp_below_bounds(self): ops = """ [p0] i0 = getfield_gc_i(p0, descr=chardescr) i1 = int_gt(i0, -1) guard_true(i1) [] """ expected = """ [p0] i0 = getfield_gc_i(p0, descr=chardescr) """ self.optimize_loop(ops, expected) def test_getfield_cmp_in_bounds(self): ops = """ [p0] i0 = getfield_gc_i(p0, descr=chardescr) i1 = int_gt(i0, 0) guard_true(i1) [] i2 = int_lt(i0, 255) guard_true(i2) [] """ self.optimize_loop(ops, ops) def test_getfieldraw_cmp_outside_bounds(self): ops = """ [p0] i0 = getfield_raw_i(p0, descr=chardescr) i1 = int_gt(i0, -1) guard_true(i1) [] """ expected = """ [p0] i0 = getfield_raw_i(p0, descr=chardescr) """ self.optimize_loop(ops, expected) def test_rawarray_cmp_outside_intbounds(self): ops = """ [i0] i1 = getarrayitem_raw_i(i0, 0, descr=rawarraydescr_char) i2 = int_lt(i1, 256) guard_true(i2) [] """ expected = """ [i0] i1 = getarrayitem_raw_i(i0, 0, descr=rawarraydescr_char) """ self.optimize_loop(ops, expected) def test_gcarray_outside_intbounds(self): ops = """ [p0] i0 = getarrayitem_gc_i(p0, 0, descr=chararraydescr) i1 = int_lt(i0, 256) guard_true(i1) [] """ expected = """ [p0] i0 = getarrayitem_gc_i(p0, 0, descr=chararraydescr) """ self.optimize_loop(ops, expected) def test_getinterior_outside_intbounds(self): ops = """ [p0] f0 = getinteriorfield_gc_f(p0, 0, descr=fc_array_floatdescr) i0 = getinteriorfield_gc_i(p0, 0, descr=fc_array_chardescr) i1 = int_lt(i0, 256) guard_true(i1) [] """ expected = """ [p0] f0 = getinteriorfield_gc_f(p0, 0, descr=fc_array_floatdescr) i0 = getinteriorfield_gc_i(p0, 0, descr=fc_array_chardescr) """ self.optimize_loop(ops, expected) @pytest.mark.xfail def test_consecutive_getinteriorfields(self): ops = """ [p0, i0] i1 = getinteriorfield_gc_i(p0, i0, descr=valuedescr) i2 = getinteriorfield_gc_i(p0, i0, descr=valuedescr) jump(i1, i2) """ expected = """ [p0, i0] i1 = getinteriorfield_gc_i(p0, i0, descr=valuedescr) jump(i1, i1) """ self.optimize_loop(ops, expected) def test_replace_result_of_new(self): ops = """ [i0] guard_value(i0, 2) [] p0 = newstr(i0) escape_n(p0) finish() """ expected = """ [i0] guard_value(i0, 2) [] p0 = newstr(2) escape_n(p0) finish() """ self.optimize_loop(ops, expected) def test_dirty_array_field_after_force(self): ops = """ [] p0 = new_array(1, descr=arraydescr) setarrayitem_gc(p0, 0, 0, descr=arraydescr) escape_n(p0) # force call_may_force_n(1, descr=mayforcevirtdescr) i1 = getarrayitem_gc_i(p0, 0, descr=arraydescr) finish(i1) """ self.optimize_loop(ops, ops) def test_dirty_array_of_structs_field_after_force(self): ops = """ [] p0 = new_array_clear(1, descr=complexarraydescr) setinteriorfield_gc(p0, 0, 0.0, descr=complexrealdescr) setinteriorfield_gc(p0, 0, 0.0, descr=compleximagdescr) escape_n(p0) # force call_may_force_n(1, descr=mayforcevirtdescr) f1 = getinteriorfield_gc_f(p0, 0, descr=compleximagdescr) finish(f1) """ self.optimize_loop(ops, ops) def test_random_call_forcing_strgetitem(self): ops = """ [p3, i15] i13 = strgetitem(p3, i15) p0 = newstr(1) p2 = new_with_vtable(descr=nodesize) setfield_gc(p2, p0, descr=otherdescr) strsetitem(p0, 0, i13) i2 = strgetitem(p0, 0) i3 = call_pure_i(1, i2, descr=nonwritedescr) finish(i3) """ expected = """ [p3, i15] i13 = strgetitem(p3, i15) i3 = call_i(1, i13, descr=nonwritedescr) finish(i3) """ self.optimize_loop(ops, expected) def test_float_guard_value(self): ops = """ [f0] guard_value(f0, 3.5) [] guard_value(f0, 3.5) [] finish(f0) """ expected = """ [f0] guard_value(f0, 3.5) [] finish(3.5) """ self.optimize_loop(ops, expected) def test_getarrayitem_gc_pure_not_invalidated(self): ops = """ [p0] i1 = getarrayitem_gc_pure_i(p0, 1, descr=arrayimmutdescr) escape_n(p0) i2 = getarrayitem_gc_pure_i(p0, 1, descr=arrayimmutdescr) escape_n(i2) jump(p0) """ expected = """ [p0] i1 = getarrayitem_gc_pure_i(p0, 1, descr=arrayimmutdescr) escape_n(p0) escape_n(i1) jump(p0) """ self.optimize_loop(ops, expected) def test_force_virtual_write(self): ops = """ [i1, i2] p1 = new(descr=ssize) setfield_gc(p1, i1, descr=adescr) setfield_gc(p1, i2, descr=bdescr) call_n(123, p1, descr=writeadescr) i3 = getfield_gc_i(p1, descr=bdescr) finish(i3) """ expected = """ [i1, i2] p1 = new(descr=ssize) setfield_gc(p1, i1, descr=adescr) call_n(123, p1, descr=writeadescr) setfield_gc(p1, i2, descr=bdescr) finish(i2) """ self.optimize_loop(ops, expected) def test_remove_guard_gc_type(self): ops = """ [p0, p1] setarrayitem_gc(p0, 1, p1, descr=gcarraydescr) guard_gc_type(p0, ConstInt(gcarraydescr_tid)) [] """ expected = """ [p0, p1] setarrayitem_gc(p0, 1, p1, descr=gcarraydescr) """ self.optimize_loop(ops, expected) def test_remove_guard_is_object_1(self): ops = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] guard_is_object(p0) [] """ expected = """ [p0] guard_class(p0, ConstClass(node_vtable)) [] """ self.optimize_loop(ops, expected) def test_remove_guard_is_object_2(self): ops = """ [p0] i1 = getfield_gc_i(p0, descr=valuedescr) guard_is_object(p0) [] finish(i1) """ expected = """ [p0] i1 = getfield_gc_i(p0, descr=valuedescr) finish(i1) """ self.optimize_loop(ops, expected) def test_remove_guard_subclass_1(self): ops = """ [p0] i1 = getfield_gc_i(p0, descr=valuedescr) guard_subclass(p0, ConstClass(node_vtable)) [] finish(i1) """ expected = """ [p0] i1 = getfield_gc_i(p0, descr=valuedescr) finish(i1) """ self.optimize_loop(ops, expected) def test_remove_guard_subclass_2(self): ops = """ [p0] p1 = getfield_gc_i(p0, descr=otherdescr) guard_subclass(p0, ConstClass(node_vtable)) [] finish(p1) """ expected = """ [p0] p1 = getfield_gc_i(p0, descr=otherdescr) finish(p1) """ self.optimize_loop(ops, expected) def test_nonnull_str2unicode(self): ops = """ [p0] guard_nonnull(p0) [] p1 = call_r(0, p0, descr=s2u_descr) # string -> unicode finish(p1) """ self.optimize_loop(ops, ops) def test_random_strange_guards_on_consts(self): ops = """ [p0] guard_value(p0, ConstPtr(nodeaddr)) [] guard_is_object(p0) [] guard_subclass(p0, ConstClass(node_vtable)) [] guard_gc_type(p0, ConstInt(node_tid)) [] jump(p0) """ expected = """ [p0] guard_value(p0, ConstPtr(nodeaddr)) [] jump(ConstPtr(nodeaddr)) """ self.optimize_loop(ops, expected) def test_remove_multiple_setarrayitems(self): ops = """ [p0, i1] setarrayitem_gc(p0, 2, NULL, descr=gcarraydescr) guard_value(i1, 42) [] setarrayitem_gc(p0, 2, NULL, descr=gcarraydescr) # remove this finish() """ expected = """ [p0, i1] setarrayitem_gc(p0, 2, NULL, descr=gcarraydescr) guard_value(i1, 42) [] finish() """ self.optimize_loop(ops, expected) def test_assert_not_none(self): ops = """ [p0] assert_not_none(p0) guard_nonnull(p0) [] finish() """ expected = """ [p0] finish() """ self.optimize_loop(ops, expected) def test_convert_float_bytes_to_longlong(self): ops = """ [f0, i0] i1 = convert_float_bytes_to_longlong(f0) f1 = convert_longlong_bytes_to_float(i1) escape_f(f1) f2 = convert_longlong_bytes_to_float(i0) i2 = convert_float_bytes_to_longlong(f2) escape_i(i2) """ expected = """ [f0, i0] i1 = convert_float_bytes_to_longlong(f0) escape_f(f0) f2 = convert_longlong_bytes_to_float(i0) escape_i(i0) """ self.optimize_loop(ops, expected) def test_float_abs_abs_folds_to_abs(self): ops = """ [f1] f2 = float_abs(f1) f3 = float_abs(f2) f4 = float_abs(f3) escape_f(f3) """ expected = """ [f1] f2 = float_abs(f1) escape_f(f2) """ self.optimize_loop(ops, expected)