commit b57a624f22b1efa873e0abac78128b69fba3d486
author Sebastian Redl <sebastian.redl@getdesigned.at> Mon Sep 27 22:18:47 2010 +0000
committer Sebastian Redl <sebastian.redl@getdesigned.at> Mon Sep 27 22:18:47 2010 +0000
tree 079bac0d4377bc5e4ef5640a3d4bd6202653298b
parent 27c08ab4859d071efa158a256f7e47e13d924443

When chaining PCHs, only write PPRecords that don't come from PCH, and give them the correct IDs. Fixes a crash in XCode.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114913 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Serialization/ASTWriter.cpp

diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index 24ec7ea..61ba5ab 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -1334,12 +1334,14 @@
   // If the preprocessor has a preprocessing record, emit it.
   unsigned NumPreprocessingRecords = 0;
   if (PPRec) {
-    for (PreprocessingRecord::iterator E = PPRec->begin(), EEnd = PPRec->end();
+    unsigned IndexBase = PPRec->getNumPreallocatedEntities();
+    for (PreprocessingRecord::iterator E = PPRec->begin(Chain),
+                                       EEnd = PPRec->end(Chain);
          E != EEnd; ++E) {
       Record.clear();
       
       if (MacroInstantiation *MI = dyn_cast<MacroInstantiation>(*E)) {
-        Record.push_back(NumPreprocessingRecords++);
+        Record.push_back(IndexBase + NumPreprocessingRecords++);
         AddSourceLocation(MI->getSourceRange().getBegin(), Record);
         AddSourceLocation(MI->getSourceRange().getEnd(), Record);
         AddIdentifierRef(MI->getName(), Record);
@@ -1359,7 +1361,7 @@
         } else
           MacroDefinitionOffsets.push_back(Stream.GetCurrentBitNo());
         
-        Record.push_back(NumPreprocessingRecords++);
+        Record.push_back(IndexBase + NumPreprocessingRecords++);
         Record.push_back(ID);
         AddSourceLocation(MD->getSourceRange().getBegin(), Record);
         AddSourceLocation(MD->getSourceRange().getEnd(), Record);