[PATCH] D61715: fix a null pointer deref issue

[Kan Shengchen via Phabricator via llvm-commits]

skan created this revision.
skan added reviewers: craig.topper, LuoYuanke, xiangzhangllvm.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

[static check]
Pointer from call to function ```DebugLoc::operator DILocation *() const ``` may be NULL and will be dereference in function ```printExtendedName```.


Repository:
  rL LLVM

https://reviews.llvm.org/D61715

Files:
  lib/CodeGen/LiveDebugVariables.cpp


Index: lib/CodeGen/LiveDebugVariables.cpp
===================================================================
--- lib/CodeGen/LiveDebugVariables.cpp
+++ lib/CodeGen/LiveDebugVariables.cpp
@@ -504,7 +504,8 @@
 
   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);


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