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-rw-r--r--lib/Frontend/Warnings.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/Frontend/Warnings.cpp b/lib/Frontend/Warnings.cpp
index 576dd3d445..f68e03b0d5 100644
--- a/lib/Frontend/Warnings.cpp
+++ b/lib/Frontend/Warnings.cpp
@@ -110,8 +110,14 @@ void clang::ProcessWarningOptions(DiagnosticsEngine &Diags,
// -Weverything is a special case as well. It implicitly enables all
// warnings, including ones not explicitly in a warning group.
if (Opt == "everything") {
- if (SetDiagnostic)
- Diags.setEnableAllWarnings(true);
+ if (SetDiagnostic) {
+ if (isPositive) {
+ Diags.setEnableAllWarnings(true);
+ } else {
+ Diags.setEnableAllWarnings(false);
+ Diags.setMappingToAllDiagnostics(diag::MAP_IGNORE);
+ }
+ }
continue;
}