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793 lines
22 KiB
Python
793 lines
22 KiB
Python
import contextlib
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import os
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import sys
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import tempfile
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import unittest
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from test import support
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from test import test_tools
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def skip_if_different_mount_drives():
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if sys.platform != 'win32':
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return
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ROOT = os.path.dirname(os.path.dirname(__file__))
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root_drive = os.path.splitroot(ROOT)[0]
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cwd_drive = os.path.splitroot(os.getcwd())[0]
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if root_drive != cwd_drive:
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# generate_cases.py uses relpath() which raises ValueError if ROOT
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# and the current working different have different mount drives
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# (on Windows).
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raise unittest.SkipTest(
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f"the current working directory and the Python source code "
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f"directory have different mount drives "
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f"({cwd_drive} and {root_drive})"
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)
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skip_if_different_mount_drives()
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test_tools.skip_if_missing('cases_generator')
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with test_tools.imports_under_tool('cases_generator'):
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import generate_cases
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import analysis
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import formatting
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from parsing import StackEffect
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def handle_stderr():
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if support.verbose > 1:
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return contextlib.nullcontext()
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else:
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return support.captured_stderr()
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class TestEffects(unittest.TestCase):
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def test_effect_sizes(self):
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input_effects = [
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x := StackEffect("x", "", "", ""),
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y := StackEffect("y", "", "", "oparg"),
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z := StackEffect("z", "", "", "oparg*2"),
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]
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output_effects = [
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StackEffect("a", "", "", ""),
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StackEffect("b", "", "", "oparg*4"),
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StackEffect("c", "", "", ""),
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]
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other_effects = [
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StackEffect("p", "", "", "oparg<<1"),
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StackEffect("q", "", "", ""),
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StackEffect("r", "", "", ""),
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]
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self.assertEqual(formatting.effect_size(x), (1, ""))
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self.assertEqual(formatting.effect_size(y), (0, "oparg"))
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self.assertEqual(formatting.effect_size(z), (0, "oparg*2"))
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self.assertEqual(
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formatting.list_effect_size(input_effects),
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(1, "oparg + oparg*2"),
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)
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self.assertEqual(
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formatting.list_effect_size(output_effects),
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(2, "oparg*4"),
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)
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self.assertEqual(
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formatting.list_effect_size(other_effects),
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(2, "(oparg<<1)"),
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)
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class TestGeneratedCases(unittest.TestCase):
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def setUp(self) -> None:
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super().setUp()
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self.maxDiff = None
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self.temp_dir = tempfile.gettempdir()
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self.temp_input_filename = os.path.join(self.temp_dir, "input.txt")
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self.temp_output_filename = os.path.join(self.temp_dir, "output.txt")
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self.temp_metadata_filename = os.path.join(self.temp_dir, "metadata.txt")
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self.temp_pymetadata_filename = os.path.join(self.temp_dir, "pymetadata.txt")
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self.temp_executor_filename = os.path.join(self.temp_dir, "executor.txt")
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def tearDown(self) -> None:
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for filename in [
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self.temp_input_filename,
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self.temp_output_filename,
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self.temp_metadata_filename,
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self.temp_pymetadata_filename,
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self.temp_executor_filename,
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]:
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try:
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os.remove(filename)
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except:
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pass
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super().tearDown()
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def run_cases_test(self, input: str, expected: str):
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with open(self.temp_input_filename, "w+") as temp_input:
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temp_input.write(analysis.BEGIN_MARKER)
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temp_input.write(input)
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temp_input.write(analysis.END_MARKER)
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temp_input.flush()
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a = generate_cases.Generator([self.temp_input_filename])
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with handle_stderr():
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a.parse()
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a.analyze()
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if a.errors:
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raise RuntimeError(f"Found {a.errors} errors")
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a.write_instructions(self.temp_output_filename, False)
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with open(self.temp_output_filename) as temp_output:
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lines = temp_output.readlines()
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while lines and lines[0].startswith(("// ", "#", " #", "\n")):
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lines.pop(0)
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while lines and lines[-1].startswith(("#", "\n")):
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lines.pop(-1)
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actual = "".join(lines)
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# if actual.strip() != expected.strip():
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# print("Actual:")
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# print(actual)
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# print("Expected:")
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# print(expected)
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# print("End")
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self.assertEqual(actual.strip(), expected.strip())
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def test_inst_no_args(self):
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input = """
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inst(OP, (--)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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spam();
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_inst_one_pop(self):
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input = """
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inst(OP, (value --)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *value;
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value = stack_pointer[-1];
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spam();
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STACK_SHRINK(1);
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_inst_one_push(self):
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input = """
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inst(OP, (-- res)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *res;
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spam();
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STACK_GROW(1);
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stack_pointer[-1] = res;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_inst_one_push_one_pop(self):
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input = """
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inst(OP, (value -- res)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *value;
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PyObject *res;
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value = stack_pointer[-1];
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spam();
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stack_pointer[-1] = res;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_binary_op(self):
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input = """
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inst(OP, (left, right -- res)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *right;
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PyObject *left;
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PyObject *res;
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right = stack_pointer[-1];
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left = stack_pointer[-2];
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spam();
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STACK_SHRINK(1);
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stack_pointer[-1] = res;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_overlap(self):
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input = """
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inst(OP, (left, right -- left, result)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *right;
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PyObject *left;
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PyObject *result;
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right = stack_pointer[-1];
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left = stack_pointer[-2];
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spam();
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stack_pointer[-1] = result;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_predictions_and_eval_breaker(self):
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input = """
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inst(OP1, (arg -- rest)) {
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}
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inst(OP3, (arg -- res)) {
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DEOPT_IF(xxx);
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CHECK_EVAL_BREAKER();
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}
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family(OP1, INLINE_CACHE_ENTRIES_OP1) = { OP3 };
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"""
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output = """
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TARGET(OP1) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP1);
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PREDICTED(OP1);
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static_assert(INLINE_CACHE_ENTRIES_OP1 == 0, "incorrect cache size");
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PyObject *arg;
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PyObject *rest;
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arg = stack_pointer[-1];
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stack_pointer[-1] = rest;
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DISPATCH();
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}
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TARGET(OP3) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP3);
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PyObject *arg;
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PyObject *res;
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arg = stack_pointer[-1];
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DEOPT_IF(xxx, OP1);
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stack_pointer[-1] = res;
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CHECK_EVAL_BREAKER();
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_error_if_plain(self):
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input = """
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inst(OP, (--)) {
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ERROR_IF(cond, label);
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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if (cond) goto label;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_error_if_plain_with_comment(self):
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input = """
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inst(OP, (--)) {
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ERROR_IF(cond, label); // Comment is ok
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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if (cond) goto label;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_error_if_pop(self):
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input = """
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inst(OP, (left, right -- res)) {
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ERROR_IF(cond, label);
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *right;
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PyObject *left;
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PyObject *res;
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right = stack_pointer[-1];
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left = stack_pointer[-2];
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if (cond) goto pop_2_label;
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STACK_SHRINK(1);
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stack_pointer[-1] = res;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_cache_effect(self):
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input = """
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inst(OP, (counter/1, extra/2, value --)) {
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}
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"""
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output = """
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TARGET(OP) {
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_Py_CODEUNIT *this_instr = frame->instr_ptr = next_instr;
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next_instr += 4;
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INSTRUCTION_STATS(OP);
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PyObject *value;
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value = stack_pointer[-1];
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uint16_t counter = read_u16(&this_instr[1].cache);
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uint32_t extra = read_u32(&this_instr[2].cache);
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STACK_SHRINK(1);
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_suppress_dispatch(self):
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input = """
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inst(OP, (--)) {
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goto somewhere;
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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goto somewhere;
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}
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"""
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self.run_cases_test(input, output)
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def test_macro_instruction(self):
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input = """
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inst(OP1, (counter/1, left, right -- left, right)) {
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op1(left, right);
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}
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op(OP2, (extra/2, arg2, left, right -- res)) {
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res = op2(arg2, left, right);
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}
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macro(OP) = OP1 + cache/2 + OP2;
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inst(OP3, (unused/5, arg2, left, right -- res)) {
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res = op3(arg2, left, right);
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}
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family(OP, INLINE_CACHE_ENTRIES_OP) = { OP3 };
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 6;
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INSTRUCTION_STATS(OP);
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PREDICTED(OP);
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_Py_CODEUNIT *this_instr = next_instr - 6;
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static_assert(INLINE_CACHE_ENTRIES_OP == 5, "incorrect cache size");
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PyObject *right;
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PyObject *left;
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PyObject *arg2;
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PyObject *res;
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// OP1
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right = stack_pointer[-1];
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left = stack_pointer[-2];
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{
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uint16_t counter = read_u16(&this_instr[1].cache);
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op1(left, right);
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}
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// OP2
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arg2 = stack_pointer[-3];
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{
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uint32_t extra = read_u32(&this_instr[4].cache);
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res = op2(arg2, left, right);
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}
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STACK_SHRINK(2);
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stack_pointer[-1] = res;
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DISPATCH();
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}
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TARGET(OP1) {
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_Py_CODEUNIT *this_instr = frame->instr_ptr = next_instr;
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next_instr += 2;
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INSTRUCTION_STATS(OP1);
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PyObject *right;
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PyObject *left;
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right = stack_pointer[-1];
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left = stack_pointer[-2];
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uint16_t counter = read_u16(&this_instr[1].cache);
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op1(left, right);
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DISPATCH();
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}
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TARGET(OP3) {
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frame->instr_ptr = next_instr;
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next_instr += 6;
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INSTRUCTION_STATS(OP3);
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PyObject *right;
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PyObject *left;
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PyObject *arg2;
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PyObject *res;
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right = stack_pointer[-1];
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left = stack_pointer[-2];
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arg2 = stack_pointer[-3];
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res = op3(arg2, left, right);
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STACK_SHRINK(2);
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stack_pointer[-1] = res;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_pseudo_instruction_no_flags(self):
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input = """
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pseudo(OP) = {
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OP1,
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};
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inst(OP1, (--)) {
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}
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"""
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output = """
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TARGET(OP1) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP1);
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_pseudo_instruction_with_flags(self):
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input = """
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pseudo(OP, (HAS_ARG, HAS_JUMP)) = {
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OP1,
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};
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inst(OP1, (--)) {
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}
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"""
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output = """
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TARGET(OP1) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP1);
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_array_input(self):
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input = """
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inst(OP, (below, values[oparg*2], above --)) {
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spam();
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *above;
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PyObject **values;
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PyObject *below;
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above = stack_pointer[-1];
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values = stack_pointer - 1 - oparg*2;
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below = stack_pointer[-2 - oparg*2];
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spam();
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STACK_SHRINK(oparg*2);
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STACK_SHRINK(2);
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_array_output(self):
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input = """
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inst(OP, (unused, unused -- below, values[oparg*3], above)) {
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spam(values, oparg);
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}
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"""
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output = """
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TARGET(OP) {
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frame->instr_ptr = next_instr;
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next_instr += 1;
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INSTRUCTION_STATS(OP);
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PyObject *below;
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PyObject **values;
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PyObject *above;
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values = stack_pointer - 1;
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spam(values, oparg);
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STACK_GROW(oparg*3);
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stack_pointer[-2 - oparg*3] = below;
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stack_pointer[-1] = above;
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DISPATCH();
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}
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"""
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self.run_cases_test(input, output)
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def test_array_input_output(self):
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input = """
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inst(OP, (values[oparg] -- values[oparg], above)) {
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spam(values, oparg);
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}
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"""
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|
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_GROW(1);
|
|
stack_pointer[-1] = above;
|
|
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_SHRINK(oparg); goto pop_1_somewhere; }
|
|
STACK_SHRINK(oparg);
|
|
STACK_SHRINK(1);
|
|
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_SHRINK((((oparg & 1) == 1) ? 1 : 0));
|
|
STACK_GROW(((oparg & 2) ? 1 : 0));
|
|
stack_pointer[-2 - (oparg & 2 ? 1 : 0)] = xx;
|
|
if (oparg & 2) { stack_pointer[-1 - (oparg & 2 ? 1 : 0)] = output; }
|
|
stack_pointer[-1] = zz;
|
|
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_SHRINK(1);
|
|
STACK_GROW((oparg ? 1 : 0));
|
|
stack_pointer[-2 - (oparg ? 1 : 0)] = deep;
|
|
if (oparg) { stack_pointer[-1 - (oparg ? 1 : 0)] = extra; }
|
|
stack_pointer[-1] = res;
|
|
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_GROW(2);
|
|
stack_pointer[-2] = val1;
|
|
stack_pointer[-1] = val2;
|
|
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 = """
|
|
guard 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 = """
|
|
guard 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 = """
|
|
guard register specializing op(OP, (--)) {
|
|
spam();
|
|
}
|
|
macro(M) = OP;
|
|
"""
|
|
self.run_cases_test(input, output)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|