Fix fomit-frame-pointe+pg error

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@342510 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains/Clang.cpp b/lib/Driver/ToolChains/Clang.cpp
index 73fe994..ef9fb8c 100644
--- a/lib/Driver/ToolChains/Clang.cpp
+++ b/lib/Driver/ToolChains/Clang.cpp
@@ -4956,7 +4956,7 @@
   }
 
   if (Arg *A = Args.getLastArg(options::OPT_pg))
-    if (shouldUseFramePointer(Args, Triple))
+    if (!shouldUseFramePointer(Args, Triple))
       D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer"
                                                       << A->getAsString(Args);