From 78ac65f06b0788f0cd657b2b0af5a0669322932f Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@gmail.com>
Date: Wed, 24 Jul 2013 00:54:39 +0000
Subject: [PATCH] Collapse logic and move and reword comment for clarity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187013 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/IR/DebugInfo.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index c42a9a377f4..c78b8c21c8b 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -417,10 +417,12 @@ bool DIType::isUnsignedDIType() {
 bool DICompileUnit::Verify() const {
   if (!isCompileUnit())
     return false;
-  StringRef N = getFilename();
-  if (N.empty())
+
+  // Don't bother verifying the compilation directory or producer string
+  // as those could be empty.
+  if (getFilename().empty())
     return false;
-  // It is possible that directory and produce string is empty.
+
   return DbgNode->getNumOperands() == 13;
 }