From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Thu, 26 Sep 2013 16:15:40 +0000 (+0000)
Subject: Ignore unknown -fno-builtin-*.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4e77e0642468ccdbd6a4a2f167952eb76876712b;p=clang

Ignore unknown -fno-builtin-*.

This matches gcc's behavior.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191434 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 3ff759d171..cef39b8d6f 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -584,6 +584,8 @@ def fno_builtin_strcat : Flag<["-"], "fno-builtin-strcat">, Group<f_Group>;
 def fno_builtin_strcpy : Flag<["-"], "fno-builtin-strcpy">, Group<f_Group>;
 def fno_builtin : Flag<["-"], "fno-builtin">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Disable implicit builtin knowledge of functions">;
+def fno_builtin_ : Joined<["-"], "fno-builtin-">, Group<clang_ignored_f_Group>,
+  HelpText<"Disable implicit builtin knowledge of a specific function">;
 def fno_math_builtin : Flag<["-"], "fno-math-builtin">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Disable implicit builtin knowledge of math functions">;
 def fno_caret_diagnostics : Flag<["-"], "fno-caret-diagnostics">, Group<f_Group>,
diff --git a/test/Driver/clang_f_opts.c b/test/Driver/clang_f_opts.c
index 80ff29e49a..e1cbc33694 100644
--- a/test/Driver/clang_f_opts.c
+++ b/test/Driver/clang_f_opts.c
@@ -121,4 +121,5 @@
 // RUN:     -fsee -fno-see                                                    \
 // RUN:     -ftracer -fno-tracer                                              \
 // RUN:     -funroll-all-loops -fno-unroll-all-loops                          \
+// RUN:     -fno-builtin-foobar                                               \
 // RUN:     %s