[cfe-commits] r132570 - in /cfe/trunk: include/clang/Basic/DiagnosticFrontendKinds.td lib/Frontend/Warnings.cpp

[Matt Beaumont-Gay]

Author: matthewbg
Date: Fri Jun  3 13:30:50 2011
New Revision: 132570

URL: http://llvm.org/viewvc/llvm-project?rev=132570&view=rev
Log:
Don't warn about -Wno-foo where foo is an unknown warning option. Explicitly
passing -Wunknown-warning-option will re-enable warnings about -Wno-foo.

Modified:
    cfe/trunk/include/clang/Basic/DiagnosticFrontendKinds.td
    cfe/trunk/lib/Frontend/Warnings.cpp

Modified: cfe/trunk/include/clang/Basic/DiagnosticFrontendKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticFrontendKinds.td?rev=132570&r1=132569&r2=132570&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticFrontendKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticFrontendKinds.td Fri Jun  3 13:30:50 2011
@@ -281,6 +281,9 @@
 def warn_unknown_warning_option : Warning<
     "unknown warning option '%0'">,
     InGroup<DiagGroup<"unknown-warning-option"> >;
+def warn_unknown_negative_warning_option : Warning<
+    "unknown warning option '%0'">,
+    InGroup<DiagGroup<"unknown-warning-option"> >, DefaultIgnore;
 def warn_unknown_warning_specifier : Warning<
     "unknown %0 warning specifier: '%1'">,
     InGroup<DiagGroup<"unknown-warning-option"> >;

Modified: cfe/trunk/lib/Frontend/Warnings.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/Warnings.cpp?rev=132570&r1=132569&r2=132570&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/Warnings.cpp (original)
+++ cfe/trunk/lib/Frontend/Warnings.cpp Fri Jun  3 13:30:50 2011
@@ -123,6 +123,8 @@
     }
 
     if (Diags.setDiagnosticGroupMapping(Opt, Mapping))
-      Diags.Report(diag::warn_unknown_warning_option) << ("-W" + Opt.str());
+      Diags.Report(isPositive ? diag::warn_unknown_warning_option :
+                   diag::warn_unknown_negative_warning_option)
+          << ("-W" + Opt.str());
   }
 }