Added a testcase for the IR interpreter, ensuring that it behaves like the JIT.

<rdar://problem/25785338>

llvm-svn: 267768

3 files changed, 84 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/Makefile b/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/Makefile
new file mode 100644
index 00000000000..c4169a9b101
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/Makefile
@@ -0,0 +1,7 @@
+LEVEL = ../../make
+
+default: a.out
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/TestIRInterpreter.py b/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/TestIRInterpreter.py
new file mode 100644
index 00000000000..00d7eb26bf9
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/TestIRInterpreter.py
@@ -0,0 +1,70 @@
+"""
+Test the IR interpreter
+"""
+
+from __future__ import print_function
+
+import unittest2
+
+import os, time
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class IRInterpreterTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break for main.c.
+        self.line = line_number('main.c',
+                                '// Set breakpoint here')
+
+        # Disable confirmation prompt to avoid infinite wait
+        self.runCmd("settings set auto-confirm true")
+        self.addTearDownHook(lambda: self.runCmd("settings clear auto-confirm"))
+
+    def build_and_run(self):
+        """Test the IR interpreter"""
+        self.build()
+
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=False)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+    @add_test_categories(['pyapi'])
+    def test_ir_interpreter(self):
+        self.build_and_run()
+
+        options = lldb.SBExpressionOptions()
+        options.SetLanguage(lldb.eLanguageTypeC_plus_plus)
+
+        set_up_expressions = ["int $i = 9", "int $j = 3", "int $k = 5"]
+
+        expressions = ["$i + $j",
+                       "$i - $j",
+                       "$i * $j",
+                       "$i / $j",
+                       "$i % $k",
+                       "$i << $j",
+                       "$i & $j",
+                       "$i | $j",
+                       "$i ^ $j"]
+
+        for expression in set_up_expressions:
+            self.frame().EvaluateExpression(expression, options)
+
+        for expression in expressions:
+            interp_expression   = expression
+            jit_expression      = "(int)getpid(); " + expression
+
+            interp_result       = self.frame().EvaluateExpression(interp_expression, options).GetValueAsSigned()
+            jit_result          = self.frame().EvaluateExpression(jit_expression, options).GetValueAsSigned()
+
+            self.assertEqual(interp_result, jit_result, "While evaluating " + expression)
+
diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/main.c b/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/main.c
new file mode 100644
index 00000000000..31204b21d97
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/ir-interpreter/main.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main()
+{
+    printf("This is a dummy\n"); // Set breakpoint here   
+    return 0;
+}