From: Ted Kremenek <kremenek@apple.com>
Date: Sat, 21 Mar 2009 00:25:09 +0000 (+0000)
Subject: Add back warning about a PTH file not containing any identifiers, but don't make
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=783bb7494c0551d1826afa5c005cc4a9afb16b6a;p=clang

Add back warning about a PTH file not containing any identifiers, but don't make
it a hard error.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67424 91177308-0d34-0410-b5e6-96231b3b80d8
---

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);