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| author | Matt Beaumont-Gay <matthewbg@google.com> | 2011-06-03 18:30:50 +0000 |
|---|---|---|
| committer | Matt Beaumont-Gay <matthewbg@google.com> | 2011-06-03 18:30:50 +0000 |
| commit | 5a4cca2cc576bb42309e3e86befaa904283e9c8c (patch) | |
| tree | 18600f339081a2ac466440ef7c7fee0b8cf9d837 | |
| parent | 0a62984eab0ab25ed0d0d974e6753a75447e404e (diff) | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132570 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | include/clang/Basic/DiagnosticFrontendKinds.td | 3 | ||||
| -rw-r--r-- | lib/Frontend/Warnings.cpp | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/include/clang/Basic/DiagnosticFrontendKinds.td b/include/clang/Basic/DiagnosticFrontendKinds.td index 67fc22e410..4aa85134aa 100644 --- a/include/clang/Basic/DiagnosticFrontendKinds.td +++ b/include/clang/Basic/DiagnosticFrontendKinds.td @@ -281,6 +281,9 @@ def err_not_a_pch_file : Error< 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"> >; diff --git a/lib/Frontend/Warnings.cpp b/lib/Frontend/Warnings.cpp index 829ac9e661..f12b484c05 100644 --- a/lib/Frontend/Warnings.cpp +++ b/lib/Frontend/Warnings.cpp @@ -123,6 +123,8 @@ void clang::ProcessWarningOptions(Diagnostic &Diags, } 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()); } } |