aboutsummaryrefslogtreecommitdiff
path: root/lib/Lex/PTHLexer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Lex/PTHLexer.cpp')
-rw-r--r--lib/Lex/PTHLexer.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Lex/PTHLexer.cpp b/lib/Lex/PTHLexer.cpp
index b5f5afd81a..e547ce551b 100644
--- a/lib/Lex/PTHLexer.cpp
+++ b/lib/Lex/PTHLexer.cpp
@@ -675,6 +675,12 @@ PTHManager* PTHManager::Create(const std::string& file, Diagnostic* Diags) {
llvm::OwningPtr<PTHStringIdLookup> SL(PTHStringIdLookup::Create(StringIdTable,
BufBeg));
+
+ // Issue a warning about the PTH file containing no identifiers.
+ if (!FL->isEmpty() && SL->isEmpty()) {
+ InvalidPTH(Diags, "PTH file contains no identifiers.");
+ }
+
// Get the location of the spelling cache.
const unsigned char* spellingBaseOffset = PrologueOffset + sizeof(uint32_t)*3;
const unsigned char* spellingBase = BufBeg + ReadLE32(spellingBaseOffset);