llvm-lto2: Print diagnostics before exiting (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290463 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 1 deletions

diff --git a/tools/llvm-lto2/llvm-lto2.cpp b/tools/llvm-lto2/llvm-lto2.cpp
index e8bf7a397f2..1fa22a01bea 100644
--- a/tools/llvm-lto2/llvm-lto2.cpp
+++ b/tools/llvm-lto2/llvm-lto2.cpp
@@ -18,6 +18,7 @@
 
 #include "llvm/LTO/Caching.h"
 #include "llvm/CodeGen/CommandFlags.h"
+#include "llvm/IR/DiagnosticPrinter.h"
 #include "llvm/LTO/LTO.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/TargetSelect.h"
@@ -157,7 +158,10 @@ int main(int argc, char **argv) {
   std::vector<std::unique_ptr<MemoryBuffer>> MBs;
 
   Config Conf;
-  Conf.DiagHandler = [](const DiagnosticInfo &) {
+  Conf.DiagHandler = [](const DiagnosticInfo &DI) {
+    DiagnosticPrinterRawOStream DP(errs());
+    DI.print(DP);
+    errs() << '\n';
     exit(1);
   };