[llvm] r187013 - Collapse logic and move and reword comment for clarity.

[Eric Christopher]

Author: echristo
Date: Tue Jul 23 19:54:39 2013
New Revision: 187013

URL: http://llvm.org/viewvc/llvm-project?rev=187013&view=rev
Log:
Collapse logic and move and reword comment for clarity.

Modified:
    llvm/trunk/lib/IR/DebugInfo.cpp

Modified: llvm/trunk/lib/IR/DebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DebugInfo.cpp?rev=187013&r1=187012&r2=187013&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DebugInfo.cpp (original)
+++ llvm/trunk/lib/IR/DebugInfo.cpp Tue Jul 23 19:54:39 2013
@@ -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;
 }