[SemaExprCXX] Avoid calling isInSystemHeader for invalid source locations
Summary:
While diagnosing a CXXNewExpr warning, we were calling isInSystemHeader(), which expect to be
called with a valid source location. This causes an assertion failure if the location is unknown.
A quick grep shows it's not without precedent to guard calls to the function with a
"Loc.isValid()".
This fixes a test failure in LLDB, which always creates object with invalid source locations as it
does not (always) have access to the source.
Reviewers: nlewycky
Subscribers: lldb-commits, cfe-commits
Differential Revision: http://reviews.llvm.org/D17847
llvm-svn: 262700
diff --git a/clang/lib/Sema/SemaExprCXX.cpp b/clang/lib/Sema/SemaExprCXX.cpp
index 088b0ba..709718f 100644
--- a/clang/lib/Sema/SemaExprCXX.cpp
+++ b/clang/lib/Sema/SemaExprCXX.cpp
@@ -1551,7 +1551,8 @@
// new.
if (PlacementArgs.empty() && OperatorNew &&
(OperatorNew->isImplicit() ||
- getSourceManager().isInSystemHeader(OperatorNew->getLocStart()))) {
+ (OperatorNew->getLocStart().isValid() &&
+ getSourceManager().isInSystemHeader(OperatorNew->getLocStart())))) {
if (unsigned Align = Context.getPreferredTypeAlign(AllocType.getTypePtr())){
unsigned SuitableAlign = Context.getTargetInfo().getSuitableAlign();
if (Align > SuitableAlign)