--- a/llvm/lib/DebugInfo/GSYM/DwarfTransformer.cpp	Mon May 25 11:55:54 2020 +0900
+++ b/llvm/lib/DebugInfo/GSYM/DwarfTransformer.cpp	Tue Jun 08 06:07:14 2021 +0900
@@ -310,8 +310,10 @@
       // so break out after printing a warning.
       auto FirstLE = FI.OptLineTable->first();
       if (FirstLE && *FirstLE == LE) {
-        Log << "warning: duplicate line table detected for DIE:\n";
-        Die.dump(Log, 0, DIDumpOptions::getForSingleDIE());
+        if (!Gsym.isQuiet()) {
+          Log << "warning: duplicate line table detected for DIE:\n";
+          Die.dump(Log, 0, DIDumpOptions::getForSingleDIE());
+        }
       } else {
         // Print out (ignore if os == nulls as this is expensive)
         Log << "error: line table has addresses that do not "
@@ -390,11 +392,14 @@
         // and the debug info wasn't able to be stripped from the DWARF. If
         // the LowPC isn't zero or -1, then we should emit an error.
         if (Range.LowPC != 0) {
-          // Unexpected invalid address, emit an error
-          Log << "warning: DIE has an address range whose start address is "
-              "not in any executable sections (" <<
-              *Gsym.GetValidTextRanges() << ") and will not be processed:\n";
-          Die.dump(Log, 0, DIDumpOptions::getForSingleDIE());
+          if (!Gsym.isQuiet()) {
+            // Unexpected invalid address, emit a warning
+            Log << "warning: DIE has an address range whose start address is "
+                   "not in any executable sections ("
+                << *Gsym.GetValidTextRanges()
+                << ") and will not be processed:\n";
+            Die.dump(Log, 0, DIDumpOptions::getForSingleDIE());
+          }
         }
         break;
       }