From: Pengfei Wang <pengfei.wang@intel.com>
Date: Thu, 9 May 2019 08:09:21 +0000 (+0000)
Subject: Bugfix for nullptr check by klocwork
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f30ca6ec43f5f87d51f9bfbbc8281432092b24dc;p=llvm

Bugfix for nullptr check by klocwork

Klocwork static check:
Pointer from call to function `DebugLoc::operator DILocation *() const `
may be NULL and will be dereference in function `printExtendedName```
Patch by Shengchen Kan (skan)
Differential Revision: https://reviews.llvm.org/D61715

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360317 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/LiveDebugVariables.cpp b/lib/CodeGen/LiveDebugVariables.cpp
index 65d30717752..648d3eefc2a 100644
--- a/lib/CodeGen/LiveDebugVariables.cpp
+++ b/lib/CodeGen/LiveDebugVariables.cpp
@@ -504,7 +504,8 @@ static void printExtendedName(raw_ostream &OS, const DINode *Node,
 
   if (!Res.empty())
     OS << Res << "," << Line;
-  if (auto *InlinedAt = DL->getInlinedAt()) {
+  auto *InlinedAt = DL ? DL->getInlinedAt() : nullptr;
+  if (InlinedAt) {
     if (DebugLoc InlinedAtDL = InlinedAt) {
       OS << " @[";
       printDebugLoc(InlinedAtDL, OS, Ctx);