commit 41e6629100664281aaf77dc20579a6d3e983149b
author Richard Smith <richard-llvm@metafoo.co.uk> Thu Apr 28 18:26:32 2016 +0000
committer Richard Smith <richard-llvm@metafoo.co.uk> Thu Apr 28 18:26:32 2016 +0000
tree 8c50affb47c0549fba98376da556880c7236878a
parent 551ccac7e4d59bf0f6236b3d993d401b410e3fd9

Fix use of uninitialized value exposed by r267802. Accessors of an invalid
PresumedLoc should not be called.

llvm-svn: 267914

clang/lib/Frontend/DiagnosticRenderer.cpp

diff --git a/clang/lib/Frontend/DiagnosticRenderer.cpp b/clang/lib/Frontend/DiagnosticRenderer.cpp
index 302067a..c4365f9 100644
--- a/clang/lib/Frontend/DiagnosticRenderer.cpp
+++ b/clang/lib/Frontend/DiagnosticRenderer.cpp
@@ -167,7 +167,8 @@
                                           PresumedLoc PLoc,
                                           DiagnosticsEngine::Level Level,
                                           const SourceManager &SM) {
-  SourceLocation IncludeLoc = PLoc.getIncludeLoc();
+  SourceLocation IncludeLoc =
+      PLoc.isInvalid() ? SourceLocation() : PLoc.getIncludeLoc();
 
   // Skip redundant include stacks altogether.
   if (LastIncludeLoc == IncludeLoc)