1 files changed, 53 insertions, 0 deletions
diff --git a/lldb/packages/Python/lldbsuite/test/commands/expression/call-function/TestCallBuiltinFunction.py b/lldb/packages/Python/lldbsuite/test/commands/expression/call-function/TestCallBuiltinFunction.py
new file mode 100644
index 00000000000..87787f3479a
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/commands/expression/call-function/TestCallBuiltinFunction.py
@@ -0,0 +1,53 @@
+"""
+Tests calling builtin functions using expression evaluation.
+"""
+
+from __future__ import print_function
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class ExprCommandCallBuiltinFunction(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    # Builtins are expanded by Clang, so debug info shouldn't matter.
+    NO_DEBUG_INFO_TESTCASE = True
+
+    def setUp(self):
+        TestBase.setUp(self)
+        # Find the line number to break for main.c.
+        self.line = line_number(
+            'main.cpp',
+            '// Please test these expressions while stopped at this line:')
+
+    def test(self):
+        self.build()
+
+        # Set breakpoint in main and run exe
+        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
+        lldbutil.run_break_set_by_file_and_line(
+            self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        interp = self.dbg.GetCommandInterpreter()
+        result = lldb.SBCommandReturnObject()
+
+        # Test different builtin functions.
+
+        interp.HandleCommand("expr __builtin_isinf(0.0f)", result)
+        self.assertEqual(result.GetOutput(), "(int) $0 = 0\n")
+
+        interp.HandleCommand("expr __builtin_isnormal(0.0f)", result)
+        self.assertEqual(result.GetOutput(), "(int) $1 = 0\n")
+
+        interp.HandleCommand("expr __builtin_constant_p(1)", result)
+        self.assertEqual(result.GetOutput(), "(int) $2 = 1\n")
+
+        interp.HandleCommand("expr __builtin_abs(-14)", result)
+        self.assertEqual(result.GetOutput(), "(int) $3 = 14\n")