From c2275676c1bde4ed20c06affdeeb1a93692f29a8 Mon Sep 17 00:00:00 2001
From: Reid Kleckner <rnk@google.com>
Date: Fri, 12 Oct 2018 18:08:11 +0000
Subject: [PATCH] Revert r344375 "[Driver] check for exit code from SIGPIPE"

This doesn't build on Windows.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@344389 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Driver/Driver.cpp | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index aed81de5ea..73639f378b 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -78,7 +78,6 @@
 #include "llvm/Support/raw_ostream.h"
 #include <map>
 #include <memory>
-#include <sysexits.h>
 #include <utility>
 #if LLVM_ON_UNIX
 #include <unistd.h> // getpid
@@ -1389,9 +1388,8 @@ int Driver::ExecuteCompilation(
 
   // Otherwise, remove result files and print extra information about abnormal
   // failures.
-  int Res = 0;
   for (const auto &CmdPair : FailingCommands) {
-    int CommandRes = CmdPair.first;
+    int Res = CmdPair.first;
     const Command *FailingCommand = CmdPair.second;
 
     // Remove result files if we're not saving temps.
@@ -1400,17 +1398,10 @@ int Driver::ExecuteCompilation(
       C.CleanupFileMap(C.getResultFiles(), JA, true);
 
       // Failure result files are valid unless we crashed.
-      if (CommandRes < 0)
+      if (Res < 0)
         C.CleanupFileMap(C.getFailureResultFiles(), JA, true);
     }
 
-    // llvm/lib/Support/Unix/Signals.inc will exit with a special return code
-    // for SIGPIPE. Do not print diagnostics for this case.
-    if (CommandRes == EX_IOERR) {
-      Res = CommandRes;
-      continue;
-    }
-
     // Print extra information about abnormal failures, if possible.
     //
     // This is ad-hoc, but we don't want to be excessively noisy. If the result
@@ -1420,17 +1411,17 @@ int Driver::ExecuteCompilation(
     // diagnostics, so always print the diagnostic there.
     const Tool &FailingTool = FailingCommand->getCreator();
 
-    if (!FailingCommand->getCreator().hasGoodDiagnostics() || CommandRes != 1) {
+    if (!FailingCommand->getCreator().hasGoodDiagnostics() || Res != 1) {
       // FIXME: See FIXME above regarding result code interpretation.
-      if (CommandRes < 0)
+      if (Res < 0)
         Diag(clang::diag::err_drv_command_signalled)
             << FailingTool.getShortName();
       else
-        Diag(clang::diag::err_drv_command_failed)
-            << FailingTool.getShortName() << CommandRes;
+        Diag(clang::diag::err_drv_command_failed) << FailingTool.getShortName()
+                                                  << Res;
     }
   }
-  return Res;
+  return 0;
 }
 
 void Driver::PrintHelp(bool ShowHidden) const {
-- 
2.40.0