Teach SourceManager::getPresumedLoc() how to fail gracefully if getLineNumber/getColumnNumber fail
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117990 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/SourceManager.cpp b/lib/Basic/SourceManager.cpp
index 8564a76..7127e80 100644
--- a/lib/Basic/SourceManager.cpp
+++ b/lib/Basic/SourceManager.cpp
@@ -1058,8 +1058,14 @@
Filename = C->Entry->getName();
else
Filename = C->getBuffer(Diag, *this)->getBufferIdentifier();
- unsigned LineNo = getLineNumber(LocInfo.first, LocInfo.second);
- unsigned ColNo = getColumnNumber(LocInfo.first, LocInfo.second);
+ bool Invalid = false;
+ unsigned LineNo = getLineNumber(LocInfo.first, LocInfo.second, &Invalid);
+ if (Invalid)
+ return PresumedLoc();
+ unsigned ColNo = getColumnNumber(LocInfo.first, LocInfo.second, &Invalid);
+ if (Invalid)
+ return PresumedLoc();
+
SourceLocation IncludeLoc = FI.getIncludeLoc();
// If we have #line directives in this file, update and overwrite the physical