Index: lldb/source/Commands/CommandObjectBreakpoint.cpp
===================================================================
--- lldb/source/Commands/CommandObjectBreakpoint.cpp
+++ lldb/source/Commands/CommandObjectBreakpoint.cpp
@@ -622,7 +622,12 @@
         result.AppendErrorWithFormat(
             "Function name regular expression could not be compiled: %s",
             llvm::toString(std::move(err)).c_str());
-        result.SetStatus(eReturnStatusFailed);
+        if (llvm::StringRef(m_options.m_func_regexp).startswith("*"))
+          result
+              .AppendWarning("function names are only searched with the "
+                             "regular expression, so a leading '*' is not "
+                             "necessary.")
+                  result.SetStatus(eReturnStatusFailed);
         return false;
       }
 
Index: lldb/test/API/commands/breakpoint/set/func-regex/TestBreakpointRegexError.py
===================================================================
--- lldb/test/API/commands/breakpoint/set/func-regex/TestBreakpointRegexError.py
+++ lldb/test/API/commands/breakpoint/set/func-regex/TestBreakpointRegexError.py
@@ -12,3 +12,8 @@
         self.expect("breakpoint set --func-regex (", error=True,
                     substrs=["error: Function name regular expression could " +
                              "not be compiled: parentheses not balanced"])
+        self.expect("breakpoint set --func-regex *", error=True,
+                    substrs=["error: Function name regular expression could " +
+                             "not be compiled: repetition-operator operand invalid",
+                             "warning: function names are only searched with " +
+                             "the regular expression, so a leading '*' is not necessary."])