From 41e1a18885b8ef29219b7102ad25cd480c4a3f55 Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Thu, 14 Nov 2013 22:25:02 +0000
Subject: [PATCH] DebugInfo: Simplify/narrow null-check for getOrCreateType

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194737 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 857b41415ab..44706d7647d 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -877,10 +877,12 @@ DIE *CompileUnit::getOrCreateContextDIE(DIScope Context) {
 /// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
 /// given DIType.
 DIE *CompileUnit::getOrCreateTypeDIE(const MDNode *TyNode) {
-  DIType Ty(TyNode);
-  if (!Ty.isType())
+  if (!TyNode)
     return NULL;
 
+  DIType Ty(TyNode);
+  assert(Ty.isType());
+
   // Construct the context before querying for the existence of the DIE in case
   // such construction creates the DIE.
   DIE *ContextDIE = getOrCreateContextDIE(resolve(Ty.getContext()));