| """ |
| Test PHI nodes work in the IR interpreter. |
| """ |
| |
| import os |
| import os.path |
| |
| import lldb |
| from lldbsuite.test.lldbtest import * |
| import lldbsuite.test.lldbutil as lldbutil |
| |
| |
| class IRInterpreterPHINodesTestCase(TestBase): |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def test_phi_node_support(self): |
| """Test support for PHI nodes in the IR interpreter.""" |
| |
| self.build() |
| exe = self.getBuildArtifact("a.out") |
| self.runCmd('file ' + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Break on the first assignment to i |
| line = line_number('main.cpp', 'i = 5') |
| lldbutil.run_break_set_by_file_and_line( |
| self, 'main.cpp', line, num_expected_locations=1, loc_exact=True) |
| |
| self.runCmd('run', RUN_SUCCEEDED) |
| |
| # The stop reason of the thread should be breakpoint |
| self.expect('thread list', STOPPED_DUE_TO_BREAKPOINT, |
| substrs=['stopped', 'stop reason = breakpoint']) |
| |
| self.runCmd('s') |
| |
| # The logical 'or' causes a PHI node to be generated. Execute without JIT |
| # to test that the interpreter can handle this |
| self.expect('expr -j 0 -- i == 3 || i == 5', substrs=['true']) |
| |
| self.runCmd('s') |
| self.expect('expr -j 0 -- i == 3 || i == 5', substrs=['false']) |
| self.runCmd('s') |
| self.expect('expr -j 0 -- i == 3 || i == 5', substrs=['true']) |
