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Save
Rename
import contextlib import os import sys import tempfile import unittest from test import support from test import test_tools def skip_if_different_mount_drives(): if sys.platform != "win32": return ROOT = os.path.dirname(os.path.dirname(__file__)) root_drive = os.path.splitroot(ROOT)[0] cwd_drive = os.path.splitroot(os.getcwd())[0] if root_drive != cwd_drive: # May raise ValueError if ROOT and the current working # different have different mount drives (on Windows). raise unittest.SkipTest( f"the current working directory and the Python source code " f"directory have different mount drives " f"({cwd_drive} and {root_drive})" ) skip_if_different_mount_drives() test_tools.skip_if_missing("cases_generator") with test_tools.imports_under_tool("cases_generator"): from analyzer import StackItem import parser from stack import Stack import tier1_generator import optimizer_generator def handle_stderr(): if support.verbose > 1: return contextlib.nullcontext() else: return support.captured_stderr() class TestEffects(unittest.TestCase): def test_effect_sizes(self): stack = Stack() inputs = [ x := StackItem("x", None, "", "1"), y := StackItem("y", None, "", "oparg"), z := StackItem("z", None, "", "oparg*2"), ] outputs = [ StackItem("x", None, "", "1"), StackItem("b", None, "", "oparg*4"), StackItem("c", None, "", "1"), ] stack.pop(z) stack.pop(y) stack.pop(x) for out in outputs: stack.push(out) self.assertEqual(stack.base_offset.to_c(), "-1 - oparg*2 - oparg") self.assertEqual(stack.top_offset.to_c(), "1 - oparg*2 - oparg + oparg*4") class TestGeneratedCases(unittest.TestCase): def setUp(self) -> None: super().setUp() self.maxDiff = None self.temp_dir = tempfile.gettempdir() self.temp_input_filename = os.path.join(self.temp_dir, "input.txt") self.temp_output_filename = os.path.join(self.temp_dir, "output.txt") self.temp_metadata_filename = os.path.join(self.temp_dir, "metadata.txt") self.temp_pymetadata_filename = os.path.join(self.temp_dir, "pymetadata.txt") self.temp_executor_filename = os.path.join(self.temp_dir, "executor.txt") def tearDown(self) -> None: for filename in [ self.temp_input_filename, self.temp_output_filename, self.temp_metadata_filename, self.temp_pymetadata_filename, self.temp_executor_filename, ]: try: os.remove(filename) except: pass super().tearDown() def run_cases_test(self, input: str, expected: str): with open(self.temp_input_filename, "w+") as temp_input: temp_input.write(parser.BEGIN_MARKER) temp_input.write(input) temp_input.write(parser.END_MARKER) temp_input.flush() with handle_stderr(): tier1_generator.generate_tier1_from_files( [self.temp_input_filename], self.temp_output_filename, False ) with open(self.temp_output_filename) as temp_output: lines = temp_output.readlines() while lines and lines[0].startswith(("// ", "#", " #", "\n")): lines.pop(0) while lines and lines[-1].startswith(("#", "\n")): lines.pop(-1) actual = "".join(lines) # if actual.strip() != expected.strip(): # print("Actual:") # print(actual) # print("Expected:") # print(expected) # print("End") self.assertEqual(actual.strip(), expected.strip()) def test_inst_no_args(self): input = """ inst(OP, (--)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); spam(); DISPATCH(); } """ self.run_cases_test(input, output) def test_inst_one_pop(self): input = """ inst(OP, (value --)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *value; value = stack_pointer[-1]; spam(); stack_pointer += -1; DISPATCH(); } """ self.run_cases_test(input, output) def test_inst_one_push(self): input = """ inst(OP, (-- res)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *res; spam(); stack_pointer[0] = res; stack_pointer += 1; DISPATCH(); } """ self.run_cases_test(input, output) def test_inst_one_push_one_pop(self): input = """ inst(OP, (value -- res)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *value; PyObject *res; value = stack_pointer[-1]; spam(); stack_pointer[-1] = res; DISPATCH(); } """ self.run_cases_test(input, output) def test_binary_op(self): input = """ inst(OP, (left, right -- res)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *right; PyObject *left; PyObject *res; right = stack_pointer[-1]; left = stack_pointer[-2]; spam(); stack_pointer[-2] = res; stack_pointer += -1; DISPATCH(); } """ self.run_cases_test(input, output) def test_overlap(self): input = """ inst(OP, (left, right -- left, result)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *right; PyObject *left; PyObject *result; right = stack_pointer[-1]; left = stack_pointer[-2]; spam(); stack_pointer[-1] = result; DISPATCH(); } """ self.run_cases_test(input, output) def test_predictions_and_eval_breaker(self): input = """ inst(OP1, (arg -- rest)) { } inst(OP3, (arg -- res)) { DEOPT_IF(xxx); CHECK_EVAL_BREAKER(); } family(OP1, INLINE_CACHE_ENTRIES_OP1) = { OP3 }; """ output = """ TARGET(OP1) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP1); PREDICTED(OP1); PyObject *arg; PyObject *rest; arg = stack_pointer[-1]; stack_pointer[-1] = rest; DISPATCH(); } TARGET(OP3) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP3); static_assert(INLINE_CACHE_ENTRIES_OP1 == 0, "incorrect cache size"); PyObject *arg; PyObject *res; arg = stack_pointer[-1]; DEOPT_IF(xxx, OP1); stack_pointer[-1] = res; CHECK_EVAL_BREAKER(); DISPATCH(); } """ self.run_cases_test(input, output) def test_error_if_plain(self): input = """ inst(OP, (--)) { ERROR_IF(cond, label); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); if (cond) goto label; DISPATCH(); } """ self.run_cases_test(input, output) def test_error_if_plain_with_comment(self): input = """ inst(OP, (--)) { ERROR_IF(cond, label); // Comment is ok } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); if (cond) goto label; // Comment is ok DISPATCH(); } """ self.run_cases_test(input, output) def test_error_if_pop(self): input = """ inst(OP, (left, right -- res)) { ERROR_IF(cond, label); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *right; PyObject *left; PyObject *res; right = stack_pointer[-1]; left = stack_pointer[-2]; if (cond) goto pop_2_label; stack_pointer[-2] = res; stack_pointer += -1; DISPATCH(); } """ self.run_cases_test(input, output) def test_cache_effect(self): input = """ inst(OP, (counter/1, extra/2, value --)) { } """ output = """ TARGET(OP) { _Py_CODEUNIT *this_instr = frame->instr_ptr = next_instr; (void)this_instr; next_instr += 4; INSTRUCTION_STATS(OP); PyObject *value; value = stack_pointer[-1]; uint16_t counter = read_u16(&this_instr[1].cache); (void)counter; uint32_t extra = read_u32(&this_instr[2].cache); (void)extra; stack_pointer += -1; DISPATCH(); } """ self.run_cases_test(input, output) def test_suppress_dispatch(self): input = """ inst(OP, (--)) { goto somewhere; } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); goto somewhere; } """ self.run_cases_test(input, output) def test_macro_instruction(self): input = """ inst(OP1, (counter/1, left, right -- left, right)) { op1(left, right); } op(OP2, (extra/2, arg2, left, right -- res)) { res = op2(arg2, left, right); } macro(OP) = OP1 + cache/2 + OP2; inst(OP3, (unused/5, arg2, left, right -- res)) { res = op3(arg2, left, right); } family(OP, INLINE_CACHE_ENTRIES_OP) = { OP3 }; """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 6; INSTRUCTION_STATS(OP); PREDICTED(OP); _Py_CODEUNIT *this_instr = next_instr - 6; (void)this_instr; PyObject *right; PyObject *left; PyObject *arg2; PyObject *res; // _OP1 right = stack_pointer[-1]; left = stack_pointer[-2]; { uint16_t counter = read_u16(&this_instr[1].cache); (void)counter; op1(left, right); } /* Skip 2 cache entries */ // OP2 arg2 = stack_pointer[-3]; { uint32_t extra = read_u32(&this_instr[4].cache); (void)extra; res = op2(arg2, left, right); } stack_pointer[-3] = res; stack_pointer += -2; DISPATCH(); } TARGET(OP1) { _Py_CODEUNIT *this_instr = frame->instr_ptr = next_instr; (void)this_instr; next_instr += 2; INSTRUCTION_STATS(OP1); PyObject *right; PyObject *left; right = stack_pointer[-1]; left = stack_pointer[-2]; uint16_t counter = read_u16(&this_instr[1].cache); (void)counter; op1(left, right); DISPATCH(); } TARGET(OP3) { frame->instr_ptr = next_instr; next_instr += 6; INSTRUCTION_STATS(OP3); static_assert(INLINE_CACHE_ENTRIES_OP == 5, "incorrect cache size"); PyObject *right; PyObject *left; PyObject *arg2; PyObject *res; /* Skip 5 cache entries */ right = stack_pointer[-1]; left = stack_pointer[-2]; arg2 = stack_pointer[-3]; res = op3(arg2, left, right); stack_pointer[-3] = res; stack_pointer += -2; DISPATCH(); } """ self.run_cases_test(input, output) def test_unused_caches(self): input = """ inst(OP, (unused/1, unused/2 --)) { body(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 4; INSTRUCTION_STATS(OP); /* Skip 1 cache entry */ /* Skip 2 cache entries */ body(); DISPATCH(); } """ self.run_cases_test(input, output) def test_pseudo_instruction_no_flags(self): input = """ pseudo(OP) = { OP1, }; inst(OP1, (--)) { } """ output = """ TARGET(OP1) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP1); DISPATCH(); } """ self.run_cases_test(input, output) def test_pseudo_instruction_with_flags(self): input = """ pseudo(OP, (HAS_ARG, HAS_JUMP)) = { OP1, }; inst(OP1, (--)) { } """ output = """ TARGET(OP1) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP1); DISPATCH(); } """ self.run_cases_test(input, output) def test_array_input(self): input = """ inst(OP, (below, values[oparg*2], above --)) { spam(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *above; PyObject **values; PyObject *below; above = stack_pointer[-1]; values = &stack_pointer[-1 - oparg*2]; below = stack_pointer[-2 - oparg*2]; spam(); stack_pointer += -2 - oparg*2; DISPATCH(); } """ self.run_cases_test(input, output) def test_array_output(self): input = """ inst(OP, (unused, unused -- below, values[oparg*3], above)) { spam(values, oparg); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *below; PyObject **values; PyObject *above; values = &stack_pointer[-1]; spam(values, oparg); stack_pointer[-2] = below; stack_pointer[-1 + oparg*3] = above; stack_pointer += oparg*3; DISPATCH(); } """ self.run_cases_test(input, output) def test_array_input_output(self): input = """ inst(OP, (values[oparg] -- values[oparg], above)) { spam(values, oparg); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject **values; PyObject *above; values = &stack_pointer[-oparg]; spam(values, oparg); stack_pointer[0] = above; stack_pointer += 1; DISPATCH(); } """ self.run_cases_test(input, output) def test_array_error_if(self): input = """ inst(OP, (extra, values[oparg] --)) { ERROR_IF(oparg == 0, somewhere); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject **values; PyObject *extra; values = &stack_pointer[-oparg]; extra = stack_pointer[-1 - oparg]; if (oparg == 0) { stack_pointer += -1 - oparg; goto somewhere; } stack_pointer += -1 - oparg; DISPATCH(); } """ self.run_cases_test(input, output) def test_cond_effect(self): input = """ inst(OP, (aa, input if ((oparg & 1) == 1), cc -- xx, output if (oparg & 2), zz)) { output = spam(oparg, input); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); PyObject *cc; PyObject *input = NULL; PyObject *aa; PyObject *xx; PyObject *output = NULL; PyObject *zz; cc = stack_pointer[-1]; if ((oparg & 1) == 1) { input = stack_pointer[-1 - (((oparg & 1) == 1) ? 1 : 0)]; } aa = stack_pointer[-2 - (((oparg & 1) == 1) ? 1 : 0)]; output = spam(oparg, input); stack_pointer[-2 - (((oparg & 1) == 1) ? 1 : 0)] = xx; if (oparg & 2) stack_pointer[-1 - (((oparg & 1) == 1) ? 1 : 0)] = output; stack_pointer[-1 - (((oparg & 1) == 1) ? 1 : 0) + ((oparg & 2) ? 1 : 0)] = zz; stack_pointer += -(((oparg & 1) == 1) ? 1 : 0) + ((oparg & 2) ? 1 : 0); DISPATCH(); } """ self.run_cases_test(input, output) def test_macro_cond_effect(self): input = """ op(A, (left, middle, right --)) { # Body of A } op(B, (-- deep, extra if (oparg), res)) { # Body of B } macro(M) = A + B; """ output = """ TARGET(M) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(M); PyObject *right; PyObject *middle; PyObject *left; PyObject *deep; PyObject *extra = NULL; PyObject *res; // A right = stack_pointer[-1]; middle = stack_pointer[-2]; left = stack_pointer[-3]; { # Body of A } // B { # Body of B } stack_pointer[-3] = deep; if (oparg) stack_pointer[-2] = extra; stack_pointer[-2 + ((oparg) ? 1 : 0)] = res; stack_pointer += -1 + ((oparg) ? 1 : 0); DISPATCH(); } """ self.run_cases_test(input, output) def test_macro_push_push(self): input = """ op(A, (-- val1)) { val1 = spam(); } op(B, (-- val2)) { val2 = spam(); } macro(M) = A + B; """ output = """ TARGET(M) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(M); PyObject *val1; PyObject *val2; // A { val1 = spam(); } // B { val2 = spam(); } stack_pointer[0] = val1; stack_pointer[1] = val2; stack_pointer += 2; DISPATCH(); } """ self.run_cases_test(input, output) def test_override_inst(self): input = """ inst(OP, (--)) { spam(); } override inst(OP, (--)) { ham(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); ham(); DISPATCH(); } """ self.run_cases_test(input, output) def test_override_op(self): input = """ op(OP, (--)) { spam(); } macro(M) = OP; override op(OP, (--)) { ham(); } """ output = """ TARGET(M) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(M); ham(); DISPATCH(); } """ self.run_cases_test(input, output) def test_annotated_inst(self): input = """ pure inst(OP, (--)) { ham(); } """ output = """ TARGET(OP) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(OP); ham(); DISPATCH(); } """ self.run_cases_test(input, output) def test_annotated_op(self): input = """ pure op(OP, (--)) { spam(); } macro(M) = OP; """ output = """ TARGET(M) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(M); spam(); DISPATCH(); } """ self.run_cases_test(input, output) input = """ pure register specializing op(OP, (--)) { spam(); } macro(M) = OP; """ self.run_cases_test(input, output) def test_deopt_and_exit(self): input = """ pure op(OP, (arg1 -- out)) { DEOPT_IF(1); EXIT_IF(1); } """ output = "" with self.assertRaises(Exception): self.run_cases_test(input, output) def test_pop_on_error_peeks(self): input = """ op(FIRST, (x, y -- a, b)) { a = x; b = y; } op(SECOND, (a, b -- a, b)) { } op(THIRD, (j, k --)) { ERROR_IF(cond, error); } macro(TEST) = FIRST + SECOND + THIRD; """ output = """ TARGET(TEST) { frame->instr_ptr = next_instr; next_instr += 1; INSTRUCTION_STATS(TEST); PyObject *y; PyObject *x; PyObject *a; PyObject *b; PyObject *k; PyObject *j; // FIRST y = stack_pointer[-1]; x = stack_pointer[-2]; { a = x; b = y; } // SECOND { } // THIRD k = b; j = a; { if (cond) goto pop_2_error; } stack_pointer += -2; DISPATCH(); } """ self.run_cases_test(input, output) class TestGeneratedAbstractCases(unittest.TestCase): def setUp(self) -> None: super().setUp() self.maxDiff = None self.temp_dir = tempfile.gettempdir() self.temp_input_filename = os.path.join(self.temp_dir, "input.txt") self.temp_input2_filename = os.path.join(self.temp_dir, "input2.txt") self.temp_output_filename = os.path.join(self.temp_dir, "output.txt") def tearDown(self) -> None: for filename in [ self.temp_input_filename, self.temp_input2_filename, self.temp_output_filename, ]: try: os.remove(filename) except: pass super().tearDown() def run_cases_test(self, input: str, input2: str, expected: str): with open(self.temp_input_filename, "w+") as temp_input: temp_input.write(parser.BEGIN_MARKER) temp_input.write(input) temp_input.write(parser.END_MARKER) temp_input.flush() with open(self.temp_input2_filename, "w+") as temp_input: temp_input.write(parser.BEGIN_MARKER) temp_input.write(input2) temp_input.write(parser.END_MARKER) temp_input.flush() with handle_stderr(): optimizer_generator.generate_tier2_abstract_from_files( [self.temp_input_filename, self.temp_input2_filename], self.temp_output_filename ) with open(self.temp_output_filename) as temp_output: lines = temp_output.readlines() while lines and lines[0].startswith(("// ", "#", " #", "\n")): lines.pop(0) while lines and lines[-1].startswith(("#", "\n")): lines.pop(-1) actual = "".join(lines) self.assertEqual(actual.strip(), expected.strip()) def test_overridden_abstract(self): input = """ pure op(OP, (--)) { spam(); } """ input2 = """ pure op(OP, (--)) { eggs(); } """ output = """ case OP: { eggs(); break; } """ self.run_cases_test(input, input2, output) def test_overridden_abstract_args(self): input = """ pure op(OP, (arg1 -- out)) { spam(); } op(OP2, (arg1 -- out)) { eggs(); } """ input2 = """ op(OP, (arg1 -- out)) { eggs(); } """ output = """ case OP: { _Py_UopsSymbol *arg1; _Py_UopsSymbol *out; arg1 = stack_pointer[-1]; eggs(); stack_pointer[-1] = out; break; } case OP2: { _Py_UopsSymbol *out; out = sym_new_not_null(ctx); if (out == NULL) goto out_of_space; stack_pointer[-1] = out; break; } """ self.run_cases_test(input, input2, output) def test_no_overridden_case(self): input = """ pure op(OP, (arg1 -- out)) { spam(); } pure op(OP2, (arg1 -- out)) { } """ input2 = """ pure op(OP2, (arg1 -- out)) { } """ output = """ case OP: { _Py_UopsSymbol *out; out = sym_new_not_null(ctx); if (out == NULL) goto out_of_space; stack_pointer[-1] = out; break; } case OP2: { _Py_UopsSymbol *arg1; _Py_UopsSymbol *out; arg1 = stack_pointer[-1]; stack_pointer[-1] = out; break; } """ self.run_cases_test(input, input2, output) def test_missing_override_failure(self): input = """ pure op(OP, (arg1 -- out)) { spam(); } """ input2 = """ pure op(OTHER, (arg1 -- out)) { } """ output = """ """ with self.assertRaisesRegex(AssertionError, "All abstract uops"): self.run_cases_test(input, input2, output) if __name__ == "__main__": unittest.main()