Index: lib/Support/Unix/Signals.inc
===================================================================
--- lib/Support/Unix/Signals.inc
+++ lib/Support/Unix/Signals.inc
@@ -203,7 +203,7 @@
 // if there is, it's not our direct responsibility. For whatever reason, our
 // continued execution is no longer desirable.
 static const int IntSigs[] = {
-  SIGHUP, SIGINT, SIGPIPE, SIGTERM, SIGUSR1, SIGUSR2
+  SIGHUP, SIGINT, SIGTERM, SIGUSR1, SIGUSR2
 };
 
 // Signals that represent that we have a bug, and our prompt termination has
@@ -297,6 +297,7 @@
     registerHandler(S);
   for (auto S : KillSigs)
     registerHandler(S);
+  signal(SIGPIPE, SIG_IGN);
 }
 
 static void UnregisterHandlers() {
Index: lib/Support/raw_ostream.cpp
===================================================================
--- lib/Support/raw_ostream.cpp
+++ lib/Support/raw_ostream.cpp
@@ -709,6 +709,9 @@
           )
         continue;
 
+      if (errno == EPIPE)
+        break;
+
       // Otherwise it's a non-recoverable error. Note it and quit.
       error_detected(std::error_code(errno, std::generic_category()));
       break;