Hide runtime support values such as clang's __vla_expr from frame variable

by respecting the "artificial" attribute on variables. Function
arguments that are artificial and useful to end-users are being
whitelisted by the language runtime.

<rdar://problem/45322477>

Differential Revision: https://reviews.llvm.org/D61451

llvm-svn: 359841

1 files changed, 13 insertions, 2 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/lang/c/vla/TestVLA.py b/lldb/packages/Python/lldbsuite/test/lang/c/vla/TestVLA.py
index f6341ec24fa..30a190b27de 100644
--- a/lldb/packages/Python/lldbsuite/test/lang/c/vla/TestVLA.py
+++ b/lldb/packages/Python/lldbsuite/test/lang/c/vla/TestVLA.py
@@ -14,12 +14,23 @@ class TestVLA(TestBase):
         _, process, _, _ = lldbutil.run_to_source_breakpoint(
             self, "break here", lldb.SBFileSpec('main.c'))
 
+        # Make sure no helper expressions show up in frame variable.
+        var_opts = lldb.SBVariablesOptions()
+        var_opts.SetIncludeArguments(False)
+        var_opts.SetIncludeLocals(True)
+        var_opts.SetInScopeOnly(True)
+        var_opts.SetIncludeStatics(False)
+        var_opts.SetIncludeRuntimeSupportValues(False)
+        var_opts.SetUseDynamic(lldb.eDynamicCanRunTarget)
+        all_locals = self.frame().GetVariables(var_opts)
+        self.assertEqual(len(all_locals), 1)
+
         def test(a, array):
             for i in range(a):
                 self.expect("fr v vla[%d]"%i, substrs=["int", "%d"%(a-i)])
                 self.expect("expr vla[%d]"%i, substrs=["int", "%d"%(a-i)])
-            self.expect("frame var vla", substrs=array)
-            self.expect("expr      vla", error=True, substrs=["incomplete"])
+            self.expect("fr v vla", substrs=array)
+            self.expect("expr vla", error=True, substrs=["incomplete"])
 
         test(2, ["int []", "[0] = 2, [1] = 1"])
         process.Continue()