From ce975d999750521f614636e59160eae217d7d89d Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@apple.com>
Date: Wed, 22 Feb 2012 17:55:22 +0000
Subject: [driver] Add a warning for when -mcpu= is specified without an
 argument.  There are likely many other OPT_xxxx_EQ options that could/should
 be added here. rdar://10704648

llvm-svn: 151174
---
 clang/lib/Driver/Driver.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'clang/lib/Driver/Driver.cpp')

diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index f9e5d82c02a..06953170d72 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -113,6 +113,12 @@ InputArgList *Driver::ParseArgStrings(ArrayRef<const char *> ArgList) {
       Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(*Args);
       continue;
     }
+
+    // Warn about -mcpu= without an argument.
+    if (A->getOption().matches(options::OPT_mcpu_EQ) && 
+        A->containsValue("")) {
+      Diag(clang::diag::warn_drv_empty_joined_argument) << A->getAsString(*Args);
+    }
   }
 
   return Args;
-- 
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