packages/Python/lldbsuite/test/expression_command/ir-interpreter/TestIRInterpreter.py

   1 """
   2 Test the IR interpreter
   3 """
   4
   5 from __future__ import print_function
   6
   7 import unittest2
   8
   9 import os, time
  10 import lldb
  11 from lldbsuite.test.decorators import *
  12 from lldbsuite.test.lldbtest import *
  13 from lldbsuite.test import lldbutil
  14
  15 class IRInterpreterTestCase(TestBase):
  16
  17     mydir = TestBase.compute_mydir(__file__)
  18
  19     def setUp(self):
  20         # Call super's setUp().
  21         TestBase.setUp(self)
  22         # Find the line number to break for main.c.
  23         self.line = line_number('main.c',
  24                                 '// Set breakpoint here')
  25
  26         # Disable confirmation prompt to avoid infinite wait
  27         self.runCmd("settings set auto-confirm true")
  28         self.addTearDownHook(lambda: self.runCmd("settings clear auto-confirm"))
  29
  30     def build_and_run(self):
  31         """Test the IR interpreter"""
  32         self.build()
  33
  34         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
  35
  36         lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=False)
  37
  38         self.runCmd("run", RUN_SUCCEEDED)
  39
  40     @add_test_categories(['pyapi'])
  41     @expectedFailureAll(oslist=['windows'], bugnumber="http://llvm.org/pr21765")  # getpid() is POSIX, among other problems, see bug
  42     @expectedFailureAll(oslist=['linux'], archs=['arm'], bugnumber="llvm.org/pr27868")
  43     def test_ir_interpreter(self):
  44         self.build_and_run()
  45
  46         options = lldb.SBExpressionOptions()
  47         options.SetLanguage(lldb.eLanguageTypeC_plus_plus)
  48
  49         set_up_expressions = ["int $i = 9", "int $j = 3", "int $k = 5"]
  50
  51         expressions = ["$i + $j",
  52                        "$i - $j",
  53                        "$i * $j",
  54                        "$i / $j",
  55                        "$i % $k",
  56                        "$i << $j",
  57                        "$i & $j",
  58                        "$i | $j",
  59                        "$i ^ $j"]
  60
  61         for expression in set_up_expressions:
  62             self.frame().EvaluateExpression(expression, options)
  63
  64         for expression in expressions:
  65             interp_expression   = expression
  66             jit_expression      = "(int)getpid(); " + expression
  67
  68             interp_result       = self.frame().EvaluateExpression(interp_expression, options).GetValueAsSigned()
  69             jit_result          = self.frame().EvaluateExpression(jit_expression, options).GetValueAsSigned()
  70
  71             self.assertEqual(interp_result, jit_result, "While evaluating " + expression)
  72