The Lexer constructor expects a source location at the start of the
file buffer, not at the start of lexing.
Fixes assertion hit in format diagnostics. rdar://11418366
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156647 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index afc7410..ba2cc8e 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -708,8 +708,8 @@
LangOpts.Trigraphs = true;
// Create a lexer starting at the beginning of this token.
- Lexer TheLexer(StrTokSpellingLoc, Features, Buffer.begin(), StrData,
- Buffer.end());
+ Lexer TheLexer(SM.getLocForStartOfFile(LocInfo.first), Features,
+ Buffer.begin(), StrData, Buffer.end());
Token TheTok;
TheLexer.LexFromRawLexer(TheTok);