Index: lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
===================================================================
--- lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
+++ lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
@@ -343,6 +343,7 @@
   const std::vector<const char *> groupsToIgnore = {
       "unused-value",
       "odr",
+      "unused-getter-return-value",
   };
   for (const char *group : groupsToIgnore) {
     compiler.getDiagnostics().setSeverityForGroup(
Index: lldb/test/API/lang/objc/warnings-in-expr-parser/Makefile
===================================================================
--- /dev/null
+++ lldb/test/API/lang/objc/warnings-in-expr-parser/Makefile
@@ -0,0 +1,4 @@
+OBJC_SOURCES := main.m
+LD_EXTRAS := -framework Foundation
+
+include Makefile.rules
Index: lldb/test/API/lang/objc/warnings-in-expr-parser/TestObjCWarningsInExprParser.py
===================================================================
--- /dev/null
+++ lldb/test/API/lang/objc/warnings-in-expr-parser/TestObjCWarningsInExprParser.py
@@ -0,0 +1,23 @@
+"""
+Test the warnings that LLDB emits when parsing Objective-C expressions.
+"""
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class TestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipUnlessDarwin
+    @no_debug_info_test
+    def test(self):
+        self.build()
+        lldbutil.run_to_source_breakpoint(self, "// break here", lldb.SBFileSpec("main.m"))
+
+        # Don't warn about not using the result of getters. This is perfectly
+        # fine in the expression parser and LLDB shouldn't warn the user about that.
+        result = self.frame().EvaluateExpression("m.m; unknown_var_to_cause_an_error")
+        self.assertNotIn("getters should not be used for side effects", str(result.GetError()))
Index: lldb/test/API/lang/objc/warnings-in-expr-parser/main.m
===================================================================
--- /dev/null
+++ lldb/test/API/lang/objc/warnings-in-expr-parser/main.m
@@ -0,0 +1,20 @@
+#include <Foundation/Foundation.h>
+
+@interface MyClass : NSObject
+@property(getter=getM) int m;
+@end
+
+@implementation MyClass {
+}
+- (int)getM {
+  return 1;
+}
+@end
+
+int main() {
+  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+  MyClass *m = [[MyClass alloc] init];
+  m.m; // break here
+  [pool drain];
+  return 0; // break here
+}