1 files changed, 8 insertions, 0 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index b5fd35a..e3145dc 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2521,6 +2521,11 @@ void CompilerInvocationBase::GenerateDiagnosticArgs(
 
     Consumer(StringRef("-R") + Remark);
   }
+
+  if (!Opts.DiagnosticSuppressionMappingsFile.empty()) {
+    GenerateArg(Consumer, OPT_warning_suppression_mappings_EQ,
+                Opts.DiagnosticSuppressionMappingsFile);
+  }
 }
 
 std::unique_ptr<DiagnosticOptions>
@@ -2597,6 +2602,9 @@ bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
     Opts.TabStop = DiagnosticOptions::DefaultTabStop;
   }
 
+  if (const Arg *A = Args.getLastArg(OPT_warning_suppression_mappings_EQ))
+    Opts.DiagnosticSuppressionMappingsFile = A->getValue();
+
   addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
   addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);